<SEC-DOCUMENT>0001364954-21-000048.txt : 20210503
<SEC-HEADER>0001364954-21-000048.hdr.sgml : 20210503
<ACCEPTANCE-DATETIME>20210503160900
ACCESSION NUMBER:		0001364954-21-000048
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		70
CONFORMED PERIOD OF REPORT:	20210331
FILED AS OF DATE:		20210503
DATE AS OF CHANGE:		20210503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHEGG, INC
		CENTRAL INDEX KEY:			0001364954
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-EDUCATIONAL SERVICES [8200]
		IRS NUMBER:				203237489
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36180
		FILM NUMBER:		21883614

	BUSINESS ADDRESS:	
		STREET 1:		3990 FREEDOM CIRCLE
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		408-855-5700

	MAIL ADDRESS:	
		STREET 1:		3990 FREEDOM CIRCLE
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHEGG INC
		DATE OF NAME CHANGE:	20060605
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>chgg-20210331.htm
<DESCRIPTION>10-Q
<TEXT>
<XBRL>
<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2021 Workiva--><!--r:7620c16c-72f1-4706-8c7f-035d13f64afa,g:676e331c-5624-4c9f-b3c2-ce75be2bd13e,d:eafca8a062764ce6914790c9abee6176--><html xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:chgg="http://www.chegg.com/20210331" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:srt="http://fasb.org/srt/2020-01-31" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns="http://www.w3.org/1999/xhtml" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>chgg-20210331</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV80LTEtMS0xLTA_8953b355-dd8d-45ed-952a-f613fb3a7ef3">0001364954</ix:nonNumeric><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:CurrentFiscalYearEndDate" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV81LTEtMS0xLTA_4003dcfc-9abe-4c18-8efc-fa4f3ad9775c">--12-31</ix:nonNumeric><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:DocumentFiscalYearFocus" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV82LTEtMS0xLTA_ac66114a-8096-48b1-b141-b1d529610cc3">2021</ix:nonNumeric><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:DocumentFiscalPeriodFocus" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV83LTEtMS0xLTA_c5ff1fa9-be0c-4a1c-be41-ef9fc3aecd5f">Q1</ix:nonNumeric><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt:booleanfalse" name="dei:AmendmentFlag" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV84LTEtMS0xLTA_e98fea98-fa6e-44d9-bf66-339bdd67991f">FALSE</ix:nonNumeric><ix:nonNumeric contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" name="us-gaap:AccountingStandardsUpdateExtensibleList" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC0wLTEtMS0w_2686bbfc-8c61-49a3-893d-bd31e4b6bcc3">us-gaap:AccountingStandardsUpdate201613Member</ix:nonNumeric><ix:nonFraction unitRef="number" contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831" decimals="7" name="us-gaap:DebtInstrumentConvertibleConversionRatio1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82MS9mcmFnOjI3MTIyZmRmN2M1ZDQ2NjJhZjQwMzIzYTYzMzkwZDdiL3RhYmxlOmM2OWEyNmEyZmRjNTRlYjNiZDJmZTIzODFlNDY2MDk5L3RhYmxlcmFuZ2U6YzY5YTI2YTJmZGM1NGViM2JkMmZlMjM4MWU0NjYwOTlfMC0xLTEtMS0w_0aa075d9-8d77-498b-9eec-fc3c481cbaa7">0.0092978</ix:nonFraction><ix:nonFraction unitRef="number" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="7" name="us-gaap:DebtInstrumentConvertibleConversionRatio1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82MS9mcmFnOjI3MTIyZmRmN2M1ZDQ2NjJhZjQwMzIzYTYzMzkwZDdiL3RhYmxlOmM2OWEyNmEyZmRjNTRlYjNiZDJmZTIzODFlNDY2MDk5L3RhYmxlcmFuZ2U6YzY5YTI2YTJmZGM1NGViM2JkMmZlMjM4MWU0NjYwOTlfMS0xLTEtMS0w_2120eb75-7430-4705-8005-1bc89012d2ba">0.0193956</ix:nonFraction><ix:nonFraction unitRef="number" contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430" decimals="7" name="us-gaap:DebtInstrumentConvertibleConversionRatio1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82MS9mcmFnOjI3MTIyZmRmN2M1ZDQ2NjJhZjQwMzIzYTYzMzkwZDdiL3RhYmxlOmM2OWEyNmEyZmRjNTRlYjNiZDJmZTIzODFlNDY2MDk5L3RhYmxlcmFuZ2U6YzY5YTI2YTJmZGM1NGViM2JkMmZlMjM4MWU0NjYwOTlfMi0xLTEtMS0w_af0583c6-758a-47f1-a777-5b0d648e1b5e">0.0371051</ix:nonFraction><ix:nonNumeric contextRef="i94818635c5c544428839463bc6e8a36d_D20210101-20210331" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDYzMg_7f49de0b-bd54-4373-8afe-28d7d153a634">P3Y</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="chgg-20210331.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:unit id="shares"><xbrli:measure>xbrli:shares</xbrli:measure></xbrli:unit><xbrli:context id="ia6a6db27736e4d72b7589213ce34ec7d_I20210430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2021-04-30</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="usd"><xbrli:measure>iso4217:USD</xbrli:measure></xbrli:unit><xbrli:context id="i12c51d956373407db8eea0de5a215709_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i1189b9b25baf4aab8523a9aa3f228070_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="usdPerShare"><xbrli:divide><xbrli:unitNumerator><xbrli:measure>iso4217:USD</xbrli:measure></xbrli:unitNumerator><xbrli:unitDenominator><xbrli:measure>xbrli:shares</xbrli:measure></xbrli:unitDenominator></xbrli:divide></xbrli:unit><xbrli:context id="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i75ce8a2683c347d7a98fdee7717ac65d_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i4d4f387db12e4009bec314d8495f9748_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ifb4b8ca0211841198d6146d7fe70e467_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i890f8d7a70ab4f98844f6f2e9fe0ffa9_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ic5f7018a85dd4c8da3865a618c6adbd0_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ie7498e02a2ec444da7609ab9f21e2267_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5f911dc362d5417094d4c873132e64b3_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i15f99d6225a1475dabfcbfe681ae6a0d_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i821c84575341489b8a596c5a03fd77fd_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="iacd285b7d6e34c16a7d58fce687179e9_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ie8ee3c40e8634abe852a1d56c23ce159_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i7aaa64aa124644c7838caa74841e6d21_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i7c8ffa9e6abe4879b6ee30c9c3c28132_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ia37ef2d2a7f7485b8572cd1094d91041_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i20920cf767dd4f03bff13d94454084d5_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="id87c44d70bb1487f8c695508be494317_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i557017987f1343b8adcb952c82c275e2_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5bf00fd4408e491f9fcf190d7b6e322d_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i625eb39f43a24c1f99c2b239ffde49d3_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i960217c9810e4a08921d0096f8bc7662_I20191231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i910720ad46e84482856553bcc2f26dee_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="id2073e9f1c574622b6e40d4ecbe419cc_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i346ce45453a246f9964ac39e132492d5_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i2b19887b2de84de9806daf4ce7a4aecd_I20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ib22efcd6cb7548278c203ebdbadacaa5_I20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ib53e4c359806482ea0551651dd14ca2e_I20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="if216661a3c3b440d8fc41ee83780b4cc_I20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i59272a2c297443db9be5d670aeaafee6_I20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2020-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-08-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="number"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><xbrli:context id="i80e1f5b2a35b45048f65c3687c61b69f_I20190331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ice301df70ab24ce782093b82b383deac_I20190430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2019-04-30</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2019-04-01</xbrli:startDate><xbrli:endDate>2019-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2018-04-30</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i632921c54b764fe89fbd2bb5011740fa_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:RestatementAxis">srt:RevisionOfPriorPeriodReclassificationAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i12764ae8b0df47c59efefac345506072_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ie590078ba2a448f3881817928004f15b_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:CheggServicesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i5a78adcd90564a4eb2a754b561ee3c43_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:CheggServicesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:RequiredMaterialsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i2b6775fdc1ee4d19a27b34602e5bfc47_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:RequiredMaterialsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i578269ecbac0452bbac81b4e6b217570_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:TextbookLibraryMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i5516c03521734fb592365f3971ab5928_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:TextbookLibraryMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ifa0e963ae77b46f480a5dd642a9d4f8e_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:StockOptionMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i10283bd5321e4f9187c34a63d7fa8c44_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:StockOptionMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="idbe1e65f76754c88b280c40813c0710b_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="id30f84e2f8444a38acec1a8413c9f6a4_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i4a02fd92c9574f77b96324ae2ab96f31_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i00f03062b4b244268679dc981bb66898_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i0079279e15e5491781efbf3f502fd962_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:EmployeeStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ib83486b403d3437bb79f0bf3c2cdb3c2_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:EmployeeStockMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="icf0c070e556e42c183c49859532a8da0_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:CashMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i69e7c0175c22453c8f178db2d02ec9a5_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i172c78145baf41909551e840ec1ab464_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i415ff9e3049043c0a7667be86e6b63c1_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ie143808a98724296ab180c4cd9a7ffa0_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i4445c045e79c4f1284cc9e9dc6df3411_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:CashMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i842cf9a4686d424eb086c9079f18f1a1_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="if749a358ce4843d9babf554d2374b7e3_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i916f7c55327d42038ef1c618902902f8_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i4c91464096144bd1816925c57305ca66_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i2c52aeef7c574579b798efa1f5192b06_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i253370a184ea4b09bea91473fd39b63b_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ied802633df7c4b63b27f5449be77be32_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i8e328d3f7ae94d14ad10de83aa462d9a_I20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">chgg:TAPDInc.Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i4ac53f75170148df9efb57cc2747b5a5_I20170930"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">chgg:ForeignEntityMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2017-09-30</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">chgg:ForeignEntityMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i3c93445b7b86422e8edfa5b04878d82b_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i3d44b05731434be48f98b74572083fb3_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="id8d4674a54a54b8f92c0487fcd87b14e_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i2e3bee8f9916464594628b713455ae42_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ifca00fd8939544a2a2d9edb23b2289cf_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ic7a912906fee48328c1f9b00793b8eed_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i8acb9e05e21a49feb0632b34b6981fed_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ia87b19132045443d98991df33f3686ca_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5a245e9bb44e45d3b0bfbb9103f1bafa_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i137267fec3ea446490ce7cadd9c292e5_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i57290ec5213c4fc6ad9484a5bf422121_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i19970572f5bc4130afaaaebb173f68db_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i00e76bc4f3824b249cba395392d5cdd6_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5904dd9b1812445e958f4053ca2cda0a_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ibbdec02910764ace805fcb3c9ef8fe86_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i400b4a04d23446aca3c6f478368b9612_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ia70bf5bf4d9049119e6c38e39951a45a_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5e76970462f04e609b9ad340b2f70038_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ifa05833312b64606bef2d50c7162b758_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="iedcc0b8c9d6742b6b175dd9767223469_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ib4bcab0d1a574dc7bf5765086d26ef6d_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ieb780147ce0842dca611e13faf747691_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ib4fb5ce664814df2a4ec0aa1bf06089e_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i8c774c55638c45d0ae1a6631c3ea8718_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i8ac28ab040314c8999c03a9ae78fc18d_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i61cb7edd5e844bc495f76a3cea58e192_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i080fdcbd1db4436da89f44f299c92982_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i3a32b85fa9c54f3c81becc293dca9f00_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i996c1de95f6741089f3fa705d124b45f_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i3ee67983fdb64d048648316ca27c57e3_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i364b558b09924ec0a6801111772e64b3_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="if2ee030ea58e4d42a2fc86e688ad2fe5_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i17134a150c0746c69ca88b7fc2df41c9_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="iddbcfc913c1248099d6e071eab53ebd8_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ic539932282a54f25aef5baa74ccc4260_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="iac7af935c18447548371b256fa5adc25_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i9dfc991bdd2945da8a20b758f5e7a4e4_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i3a5ce7f3425745f381b986d2dcc4e04e_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i9ec9b226b4fc4bfbb99f48139cf7bed1_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i707cf4308ed9453cb40bc27962b1a349_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i93f8c639a0ed47bdab784fff08e21364_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i262c95c8588a42f3902ea5c2cd1a24c0_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i385386847f734c0ca41f00702907db6c_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i756b589cc250419ea816398952a55f38_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i9bc15106cbe84069b59b9c49e4407afc_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i8631bb0aa5c5403e9a670bd4ad3bb103_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ic4d1aadda93d4ee0b061ddaacc83fcb0_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ifdb52672bb1a45f0abf595fa0238ed23_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i68208b874ee847b78cb809d56e675824_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i11978135b6904d1baefe472298180885_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ib09ea1ce125240a687be462ce814dc7a_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i410ce183bcb543a99809da1a26c8de34_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i6ac85422e9e147bcab681b82c42254bf_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i8be3c90a533a45ac87d64e719c751f88_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:BusinessAcquisitionAxis">chgg:TechnologyCompanyMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-02-22</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ice3bd056eafd49bd9708b80fad62ef9d_D20210222-20210222"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:BusinessAcquisitionAxis">chgg:TechnologyCompanyMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-02-22</xbrli:startDate><xbrli:endDate>2021-02-22</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i7f5901cc42994782bbb5a0bee3cfff73_I20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026AdditionalNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-08-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i1a9c08e3930a454696936ce39d040109_D20200801-20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-08-01</xbrli:startDate><xbrli:endDate>2020-08-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2018-04-01</xbrli:startDate><xbrli:endDate>2018-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ib9b662aece0d46a79988a718b0b99422_I20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-08-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i6574eb7422664c0ea77ac87dd435bf45_D20200801-20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-08-01</xbrli:startDate><xbrli:endDate>2020-08-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-08-01</xbrli:startDate><xbrli:endDate>2020-08-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i9c3b234009514f3898b6d6ff45a59e1d_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i34696a2cca2346dca5112aa5dc3cb215_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:unit id="day"><xbrli:measure>chgg:day</xbrli:measure></xbrli:unit><xbrli:context id="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtCovenantTermsAxis">chgg:SalePriceIsGreaterOrEqual130PercentMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2018-04-01</xbrli:startDate><xbrli:endDate>2018-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i10ce0675335840e3b76aa5898c09c6f2_D20180401-20180430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtCovenantTermsAxis">chgg:TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2018-04-01</xbrli:startDate><xbrli:endDate>2018-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ic6bc0c34f9ba4685aac266aded393d33_D20180401-20180430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtCovenantTermsAxis">chgg:TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2018-04-01</xbrli:startDate><xbrli:endDate>2018-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="iebd16c25b055465eb3a3ee69e374cdf6_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-04-01</xbrli:startDate><xbrli:endDate>2021-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ifaff83de79ca489c9caeb776fad6cc1a_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ic2d348238f7a4e35a7a63b88419ea1b1_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:ExchangeOfAggregatePrincipalAmountMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:ExchangeOfAggregatePrincipalAmountMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ic913f67407734139bb465a041bd7b56a_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i568f5741347647b8927ee0b75dd20526_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="if40b6a70d0ee4fb2bc84c7a1eca79711_D20200801-20200831"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-08-01</xbrli:startDate><xbrli:endDate>2020-08-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ib1eb4154732349119fdba5d7d7c90012_D20190401-20190430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2019-04-01</xbrli:startDate><xbrli:endDate>2019-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="idd446d0d3ca14b7bb7dc83fe63327303_D20180401-20180430"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2018-04-01</xbrli:startDate><xbrli:endDate>2018-04-30</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="id8786dbc8fd440b79f10ef7c37a3f18c_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i58eef5d33dcc48688b91d17c94e15621_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i56c8d4a014af47a0aae4b5b8cec5e57e_I20200721"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:VitalSourceTechnologiesLLCVSTVsCheggMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LitigationStatusAxis">us-gaap:PendingLitigationMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-07-21</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="numberofplaintiffs"><xbrli:measure>chgg:numberOfPlaintiffs</xbrli:measure></xbrli:unit><xbrli:context id="i41662b440e844378b83b68a464408983_D20200512-20200512"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:A2018DataIncidentArbitrationDemandsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LitigationStatusAxis">us-gaap:PendingLitigationMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-05-12</xbrli:startDate><xbrli:endDate>2020-05-12</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ic9f1749896224651875bc489f30602b9_D20200701-20200701"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:A2018DataIncidentArbitrationDemandsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:LitigationStatusAxis">us-gaap:PendingLitigationMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-07-01</xbrli:startDate><xbrli:endDate>2020-07-01</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="iffcce83a3e0a48929e979c62d5fe0feb_D20200812-20200812"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:A2018DataIncidentArbitrationDemandsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-08-12</xbrli:startDate><xbrli:endDate>2020-08-12</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">chgg:PublicOfferingMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-02-01</xbrli:startDate><xbrli:endDate>2021-02-28</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ieace5e8c8a9b4b789b505aefcd900af2_I20210228"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">chgg:PublicOfferingMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-02-28</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i4d2401de5ba546d390f5e9974709da7f_I20200630"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2020-06-30</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i63edd251631c4b27981b515396ee4012_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:CostOfSalesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="idba69f9a905a4c27be84a508ebace169_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:CostOfSalesMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="iba7cf555c40c42d5a91d5737fa16046c_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:ResearchAndDevelopmentExpenseMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="id22893a050e04088a0e4abee10ef4f5a_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:ResearchAndDevelopmentExpenseMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i92ada1088fd34a1e9215923abc72ffef_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:SellingAndMarketingExpenseMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="idf89328053f443069bfc56c2b10e490b_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:SellingAndMarketingExpenseMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="iff0c34d13b0a4cc0929ae2febc24d361_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:GeneralAndAdministrativeExpenseMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ifde7b8c3a47b413a93d130cc884255b9_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:GeneralAndAdministrativeExpenseMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i86b8ea162c34436688b9d0c26384fb42_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i7f3824120c674d758a0e7546dab59828_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="if1ccb61b2eca47959ec3f2b1c83d2516_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i3e91538dab90434a8c28609c79636341_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheOneMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i805c55cd19e7402b8cc3365e520eebac_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheTwoMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i1d610928a8304be08320eefbc0bc522e_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheThreeMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ide9e54322d4f4a91a9002245f04ab235_D20240301-20240331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:StatementScenarioAxis">srt:ScenarioForecastMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2024-03-01</xbrli:startDate><xbrli:endDate>2024-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesFinancialAndStrategicPerformanceTargetsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i4c95bfb512cd4083a532fb0833f49a47_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesFinancialAndStrategicPerformanceTargetsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i94818635c5c544428839463bc6e8a36d_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">us-gaap:RestrictedStockUnitsRSUMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i201e1f4000664b508d73f5e86160e5bf_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">us-gaap:RestrictedStockUnitsRSUMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i91929bef1c4e43a2abbf3d3a09e0d999_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i1f614ee084a1468686803c83c6301868_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="idb10cb96493c47de81f06e9bd4923178_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ic935a646906045b6888f5a72bcc403e5_I20201231"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2020-12-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="i44c5b21731b04cbb934f4da7c11bc671_I20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:instant>2021-03-31</xbrli:instant></xbrli:period></xbrli:context><xbrli:unit id="board_member"><xbrli:measure>chgg:board_member</xbrli:measure></xbrli:unit><xbrli:context id="i2dfc98470ee44a22bb6fda10432c17d0_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:PayPalHoldingsInc.Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionAxis">chgg:PaymentProcessingFeesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">us-gaap:ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="ieaf219e91397420b8ac83b4004a64436_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:PayPalHoldingsInc.Member</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionAxis">chgg:PaymentProcessingFeesMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">us-gaap:ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i54b84e300cd7411394549e694c42c059_D20210101-20210331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">chgg:BoardOfDirectorsMemberMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:ZuoraIncMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-01-01</xbrli:startDate><xbrli:endDate>2021-03-31</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="i50761de480ce48699fb0528ba8500b03_D20200101-20200331"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001364954</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">chgg:BoardOfDirectorsMemberMember</xbrldi:explicitMember><xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:ZuoraIncMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2020-01-01</xbrli:startDate><xbrli:endDate>2020-03-31</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="ieafca8a062764ce6914790c9abee6176_1"></div><div style="min-height:4.5pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:96.468%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td></tr></table></div><div style="margin-top:2pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Washington, D.C. 20549</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:31.073%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg2_8892f276-496b-4512-9de5-0abba56fe634">10-Q</ix:nonNumeric> </span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:31.073%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(Mark One)</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:0.1%"></td><td style="width:2.624%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:96.076%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:boolballotbox" name="dei:DocumentQuarterlyReport" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MzFiYzM4ZWJmN2NlNGRkNjllMDRhZGVjYTcyYjA5MzUvdGFibGVyYW5nZTozMWJjMzhlYmY3Y2U0ZGQ2OWUwNGFkZWNhNzJiMDkzNV8wLTAtMS0xLTA_8080d4c6-bf6d-4b34-a0cc-594b405548dc">&#9746;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</span></td></tr></table></div><div style="margin-top:3pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">For the quarterly period ended <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt:datemonthdayyearen" name="dei:DocumentPeriodEndDate" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xMjY_7b8e7d02-89da-455d-b0d3-b94a15f7da7c">March 31, 2021</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">or</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:0.1%"></td><td style="width:2.612%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:96.088%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:boolballotbox" name="dei:DocumentTransitionReport" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6N2U1NTIwMTMyYjkyNDE0NGI0ZGQwYWE0MzUwNGYzOWYvdGFibGVyYW5nZTo3ZTU1MjAxMzJiOTI0MTQ0YjRkZDBhYTQzNTA0ZjM5Zl8wLTAtMS0xLTA_97d988d9-869f-45de-8e04-a94f7ba1e3ff">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</span></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">For the transition period from _________ to _________ &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Commission file number <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg3_8416ad76-c918-46ce-8afc-8dd498ad7288">001-36180</ix:nonNumeric> </span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:31.073%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><img src="chgg-20210331_g1.jpg" alt="chgg-20210331_g1.jpg" style="height:57px;margin-bottom:5pt;vertical-align:text-bottom;width:101px"/></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTgz_e63bd7bf-656b-4065-96ce-bb53cd5319bc">CHEGG, INC</ix:nonNumeric>.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:120%">(Exact name of registrant as specified in its charter)</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:31.073%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:47.560%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:2.479%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:47.561%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:stateprovnameen" name="dei:EntityIncorporationStateCountryCode" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6ZGJjMjM1M2ZlYzZjNDY5ZDg2ZDc0NDE5MDQwNjAwZTIvdGFibGVyYW5nZTpkYmMyMzUzZmVjNmM0NjlkODZkNzQ0MTkwNDA2MDBlMl8wLTAtMS0xLTA_f5b30817-5f92-4a5e-b83a-e61323d20cec">Delaware</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6ZGJjMjM1M2ZlYzZjNDY5ZDg2ZDc0NDE5MDQwNjAwZTIvdGFibGVyYW5nZTpkYmMyMzUzZmVjNmM0NjlkODZkNzQ0MTkwNDA2MDBlMl8wLTItMS0xLTA_9e83edad-eaec-45e2-afbb-0106fa7e9098">20-3237489</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%">(State or other jurisdiction of<br/>incorporation or organization)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%">(I.R.S. Employer<br/>Identification No.)</span></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg4_c3dcbd6e-7c08-4b3c-a7f1-2b8c842622af">3990 Freedom Circle</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg5_da0662d2-b950-448d-9ecb-03b175498275">Santa Clara</ix:nonNumeric>, <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTkw_a8a0fa47-0b1f-4925-85c5-25b1daa690a2">CA</ix:nonNumeric>, <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTkx_aecde210-1042-4dba-a55b-8fb722304b2e">95054</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:120%">(Address of principal executive offices)</span></div><div style="margin-top:3pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:120%">(<ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTky_cf9e2513-dcce-4221-8fb7-9d072b12c1a0">408</ix:nonNumeric>) <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg0_c2e001f2-4897-44aa-b435-749dd1703f42">855-5700</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:120%">(Registrant&#8217;s telephone number, including area code)</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:31.073%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.233%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.234%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%">Title of each class</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%">Trading symbol(s)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:700;line-height:100%">Name of each exchange on which registered</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:Security12bTitle" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6NDNiYjlmN2U3Y2I4NGE5OTk3ODc3NzQ5YTIxN2NlMTkvdGFibGVyYW5nZTo0M2JiOWY3ZTdjYjg0YTk5OTc4Nzc3NDlhMjE3Y2UxOV8xLTAtMS0xLTA_fb75e579-faf4-4149-af44-76ef0d4a85d3">Common stock, $0.001 par value per share</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:TradingSymbol" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6NDNiYjlmN2U3Y2I4NGE5OTk3ODc3NzQ5YTIxN2NlMTkvdGFibGVyYW5nZTo0M2JiOWY3ZTdjYjg0YTk5OTc4Nzc3NDlhMjE3Y2UxOV8xLTEtMS0xLTA_8653104b-c836-47e1-9628-eb928d8b21ff">CHGG</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6NDNiYjlmN2U3Y2I4NGE5OTk3ODc3NzQ5YTIxN2NlMTkvdGFibGVyYW5nZTo0M2JiOWY3ZTdjYjg0YTk5OTc4Nzc3NDlhMjE3Y2UxOV8xLTItMS0xLTA_d0ca0723-625e-4c3f-8d27-a31e9f711492">The New York Stock Exchange</ix:nonNumeric></span></td></tr></table></div><div style="padding-left:36pt"><span><br/></span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;padding-left:15.55pt">Indicate by check mark whether the registrant&#160;(1)&#160;has filed all reports required to be filed by Section&#160;13 or 15(d) of the Securities Exchange Act of 1934 (Exchange Act) during the preceding 12&#160;months (or for such shorter period that the registrant was required to file such reports), and&#160;(2)&#160;has been subject to such filing requirements for the past 90&#160;days.&#160;<ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityCurrentReportingStatus" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg1_8cf72c60-75c8-4bb1-87d7-360dae4a8fef">Yes</ix:nonNumeric>&#160;</span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:120%">x </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">No&#160;</span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#168;</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;padding-left:15.55pt">Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (&#167; 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="dei:EntityInteractiveDataCurrent" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTkz_f9c885c4-c883-4efc-a3f3-a51926ba932e">Yes</ix:nonNumeric>&#160;</span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:120%">x </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">No&#160;</span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#168;</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;padding-left:15.55pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company,&#8221; and &#8220;emerging growth company&#8221; in Rule&#160;12b-2 of the Exchange Act.</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:24.852%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:28.096%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:14.555%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:28.097%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:entityfilercategoryen" name="dei:EntityFilerCategory" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MGMyYjlkZTIyM2Y0NGY5MGJmZWY4MTUyYTkwZWU1OTQvdGFibGVyYW5nZTowYzJiOWRlMjIzZjQ0ZjkwYmZlZjgxNTJhOTBlZTU5NF8wLTAtMS0xLTA_fd51380a-e93f-48f2-b4aa-a8c0b81af574">Large accelerated filer</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:100%">x</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Accelerated&#160;filer</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:100%">&#9744;</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Non-accelerated&#160;filer <br/>&#160;(Do not check if a smaller reporting company)</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:100%">&#9744;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Smaller&#160;reporting&#160;company</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:boolballotbox" name="dei:EntitySmallBusiness" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MGMyYjlkZTIyM2Y0NGY5MGJmZWY4MTUyYTkwZWU1OTQvdGFibGVyYW5nZTowYzJiOWRlMjIzZjQ0ZjkwYmZlZjgxNTJhOTBlZTU5NF8xLTMtMS0xLTA_2522350c-d1be-43c7-96a7-9c10d0003e49">&#9744;</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:100%">Emerging growth company </span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MGMyYjlkZTIyM2Y0NGY5MGJmZWY4MTUyYTkwZWU1OTQvdGFibGVyYW5nZTowYzJiOWRlMjIzZjQ0ZjkwYmZlZjgxNTJhOTBlZTU5NF8yLTEtMS0xLTA_93726f33-478d-4b4c-b13d-5fa4077a7cfd">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;padding-left:15.55pt">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. </span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#168;</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;padding-left:15.55pt">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).&#160;&#160;&#160;&#160;Yes&#160;&#160;</span><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:7pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:boolballotbox" name="dei:EntityShellCompany" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTk0_cb4c7fe2-fc75-44e6-9128-7094e7fc0efe">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;No&#160;&#160;</span><span style="color:#000000;font-family:'Wingdings',sans-serif;font-size:7pt;font-weight:400;line-height:120%">x</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;padding-left:15.55pt">As of April 30, 2021, the Registrant had <ix:nonFraction unitRef="shares" contextRef="ia6a6db27736e4d72b7589213ce34ec7d_I20210430" decimals="INF" format="ixt:numdotdecimal" name="dei:EntityCommonStockSharesOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTQw_0b365535-4eec-4044-9703-611aaf182092">141,935,085</ix:nonFraction> outstanding shares of Common Stock.</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:96.468%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:3pt double #000000;padding:0 1pt"></td></tr></table></div><div style="padding-left:36pt"><span><br/></span></div><div style="text-align:center"><span><br/></span></div><div style="padding-left:36pt"><span><br/></span></div><div style="height:45pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_7"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">TABLE OF CONTENTS</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:9.603%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:75.586%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.045%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%;text-decoration:underline">Page</span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_13">PART I - FINANCIAL INFORMATION</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_16">Item 1.</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_16">Financial Statements (unaudited):</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_16">4</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_19">Condensed Consolidated Balance Sheets - March 31, 2021 and December 31, 2020</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_19">4</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_22">Condensed Consolidated Statements of Operations - for the Three Months Ended March 31, 2021 and 2020</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_22">5</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_25">Condensed Consolidated Statements of </a><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_25">Comprehensive Loss</a><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_25"> - for the Three Months Ended March 31, 2021 and 2020</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_25">6</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_28">Condensed Consolidated Statements of Stockholder's Equity - for the Three Months Ended March 31, 2021 and 2020</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_28">7</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_31">Condensed Consolidated Statements of Cash Flows - for the Three Months Ended March 31, 2021 and 2020</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_31">8</a></span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_34">Notes to Condensed Consolidated Financial Statements</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_34">9</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_85">Item&#160;2.</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_85">Management's Discussion and Analysis of Financial Condition and Results of Operations</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_85">23</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_121">Item 3.</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_121">Quantitative and Qualitative Disclosures About Market Risk</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_121">31</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_124">Item 4.</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_124">Controls and Procedures</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_124">31</a></span></div></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_127">PART&#160;II - OTHER INFORMATION</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_130">Item 1.</a></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_130">Legal Proceedings</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_130">32</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_133">Item 1A.</a></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_133">Risk Factors</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_133">32</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_136">Item 2.</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_136">Unregistered Sales of Equity Securities and Use of Proceeds</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_136">32</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_139">Item 6.</a></span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_139">Exhibits</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_139">33</a></span></div></td></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_142">Signatures</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:right"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_142">34</a></span></div></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unless the context requires otherwise, the words &#8220;we,&#8221; &#8220;us,&#8221; &#8220;our,&#8221; &#8220;Company,&#8221; and &#8220;Chegg&#8221; refer to Chegg, Inc. and its subsidiaries taken as a whole.</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Chegg, Chegg.com, Chegg Study, internships.com, Research Ready, EasyBib, the Chegg &#8220;C&#8221; logo, and Thinkful, are some of our trademarks used in this Quarterly Report on Form 10-Q. Solely for convenience, our trademarks, trade names, and service marks referred to in this Quarterly Report on Form 10-Q appear without the </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">&#174;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, &#8482; and </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">SM</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> symbols, but those references are not intended to indicate, in any way, that we will not assert, to the fullest extent under applicable law, our rights to these trademarks and trade names. Other trademarks appearing in this Quarterly Report on Form 10-Q are the property of their respective holders.</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_10"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">NOTE ABOUT FORWARD-LOOKING STATEMENTS </span></div><div style="text-align:center"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this Quarterly Report on Form 10-Q other than statements of historical fact, including statements regarding our future results of operations and financial position, our business strategy and plans, our objectives for future operations, and the impact of the ongoing coronavirus (COVID-19) pandemic on our financial condition and results of operations are forward-looking statements. The words &#8220;believe,&#8221; &#8220;may,&#8221; &#8220;will,&#8221; &#8220;would,&#8221; &#8220;could,&#8221; &#8220;estimate,&#8221; &#8220;continue,&#8221; &#8220;anticipate,&#8221; &#8220;intend,&#8221; &#8220;project,&#8221; &#8220;endeavor,&#8221; &#8220;expect,&#8221; &#8220;plans to,&#8221; &#8220;if,&#8221; &#8220;future,&#8221; &#8220;likely,&#8221; &#8220;potentially,&#8221; and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives, and financial needs. These forward-looking statements are subject to a number of risks, uncertainties, and assumptions, including those described in Part I, Item 1A, &#8220;Risk Factors&#8221; in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time, such as the COVID-19 global pandemic. Many of the risks and uncertainties are currently elevated by, and may or will continue to be elevated by, the current COVID-19 pandemic. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties, and assumptions, the future events and trends discussed in this Quarterly Report on Form&#160;10-Q may not occur and actual results could differ materially and adversely from those anticipated or implied in the forward-looking statements. You should read this Quarterly Report on Form 10-Q completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as required by law. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements.</span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_13"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">PART I - FINANCIAL INFORMATION</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_16"></div><div style="padding-left:47.25pt;text-indent:-47.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;1. FINANCIAL STATEMENTS (UNAUDITED)</span></div><div style="padding-left:47.25pt;text-indent:-47.25pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_19"></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CHEGG, INC.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CONDENSED CONSOLIDATED BALANCE SHEETS</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(in thousands, except for number of shares and par value)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(unaudited)</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:74.706%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.630%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.631%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Assets</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current assets</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMy0xLTEtMS0w_704a6d3c-221c-4bab-b428-c9b9f0b3923e">656,168</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMy0zLTEtMS0w_4606646a-ead7-468b-838d-6532b21e3945">479,853</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNC0xLTEtMS0w_aaf15133-2e6e-4692-8922-486a657be4db">1,215,944</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNC0zLTEtMS0w_6179a899-1699-4953-9d64-6afe0fa5fb81">665,567</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts receivable, net of allowance of $<ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" name="us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0wLTEtMS0wL3RleHRyZWdpb246Y2E3ZTI3NzYzOTRiNDJlNzgyNDcwMWY2YjE2ZGZjOWRfNDU_8b1b6104-8b35-4d29-8595-e7e29dbbb1c9">169</ix:nonFraction> and $<ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" name="us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0wLTEtMS0wL3RleHRyZWdpb246Y2E3ZTI3NzYzOTRiNDJlNzgyNDcwMWY2YjE2ZGZjOWRfNTI_0b093812-eabf-41a9-9af9-a14e92aa8e33">153</ix:nonFraction> at March&#160;31, 2021 and December&#160;31, 2020, respectively</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0xLTEtMS0w_c9c895eb-ee56-4257-9ac2-6a33f5056a49">11,633</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0zLTEtMS0w_fc075a9a-d122-4704-a0de-b2a075f3f0be">12,913</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prepaid expenses</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PrepaidExpenseCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNi0xLTEtMS0w_90492bb8-7716-4417-a24c-50caf85084e2">25,256</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PrepaidExpenseCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNi0zLTEtMS0w_f294e97b-fa74-43c2-babd-47005c6a2ca8">12,776</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other current assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherAssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNy0xLTEtMS0w_62d2f2ad-7d25-40d3-a5cb-de63b5aa7f2a">26,625</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherAssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNy0zLTEtMS0w_02bd00c6-4cfc-4f82-99a1-79733345f2fb">11,846</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total current assets</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOC0xLTEtMS0w_39cb3210-76d3-42b5-8048-55dedd4a5e5e">1,935,626</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOC0zLTEtMS0w_9fc09b57-46dc-4647-ab61-e876c8da6891">1,182,955</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOS0xLTEtMS0w_ebc8ef4d-77f2-4df2-8bb1-7bb4f6cb897f">711,224</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOS0zLTEtMS0w_00efa0a2-00e4-43cd-a177-938c8e0b3605">523,628</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Textbook library, net</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:TextbookLibraryNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTAtMS0xLTEtMA_dfe5c001-4ac1-4995-820f-20aebe3deef0">24,000</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="chgg:TextbookLibraryNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTAtMy0xLTEtMA_2e76a977-5ab1-4d62-aaca-1c5ee21d189f">34,149</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Property and equipment, net</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PropertyPlantAndEquipmentNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTEtMS0xLTEtMA_de292375-424c-41ac-94f4-bbffca3a3781">134,093</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PropertyPlantAndEquipmentNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTEtMy0xLTEtMA_6163f924-a6e4-4e24-a4a1-640b9a4b83cb">125,807</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Goodwill</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Goodwill" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTItMS0xLTEtMA_8b4181e8-27d3-45b2-b909-eb8208ec4126">290,601</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Goodwill" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTItMy0xLTEtMA_541a5a4f-375e-4f1d-90ce-10483e669275">285,214</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Intangible assets, net</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IntangibleAssetsNetExcludingGoodwill" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTMtMS0xLTEtMA_9fc2b5b0-1c8f-482c-b532-2582d5bd0a97">49,798</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IntangibleAssetsNetExcludingGoodwill" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTMtMy0xLTEtMA_295e0df5-6181-4692-a52c-fe241075d5db">51,249</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Right of use assets</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTQtMS0xLTEtMA_58c502ed-f3e1-472a-b5e6-3ef1a5a5fe33">22,617</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTQtMy0xLTEtMA_ebad8e5f-f2a6-4155-86fe-6f06b4601894">24,226</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherAssetsNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTUtMS0xLTEtMA_285e4df6-27c7-41cf-8174-5bf14e48be17">25,602</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherAssetsNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTUtMy0xLTEtMA_88545c12-f220-441d-85fa-96f02430bff4">24,030</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Assets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTYtMS0xLTEtMA_02977199-b68a-4ebb-83fd-64b1ad5b0da0">3,193,561</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Assets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTYtMy0xLTEtMA_96bc365d-97bb-4800-9ac8-ac41e73bc5c1">2,251,258</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Liabilities and stockholders' equity</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current liabilities</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts payable</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsPayableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTktMS0xLTEtMA_d53ec71f-8743-4790-ba37-fa8787c2b0e6">14,902</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsPayableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTktMy0xLTEtMA_fb0de7c5-a825-431b-9344-0d33890c8a21">8,547</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deferred revenue</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjAtMS0xLTEtMA_b25ab3c4-47a3-426b-9eaf-6f57d5f6ac35">48,608</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjAtMy0xLTEtMA_9e361532-45b3-4244-bc86-0376d68415fe">32,620</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accrued liabilities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccruedLiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjItMS0xLTEtMA_7607edaa-8c80-498d-abcc-b5a70b24ae7a">78,089</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccruedLiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjItMy0xLTEtMA_874d27c7-2eab-415f-9925-bdf45b109f02">68,565</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current portion of convertible senior notes, net</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SeniorNotesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMS0xLTEtNzU_5dd08d85-8ebc-4ec1-b99c-04594a6134a0">109,494</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-5" format="ixt:zerodash" name="us-gaap:SeniorNotesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMy0xLTEtNzU_1c128e5a-ef79-45e3-b8db-03336fd37ef7">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total current liabilities</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMS0xLTEtMA_e0371d93-02cc-480f-acfa-778d07b1776b">251,093</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMy0xLTEtMA_14783829-4e38-4525-8d6b-e6a795e23ac5">109,732</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term liabilities</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term portion of convertible senior notes, net</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SeniorLongTermNotes" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjUtMS0xLTEtMA_eb836850-0665-4f1a-8da0-1ef55dd07e36">1,673,946</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SeniorLongTermNotes" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjUtMy0xLTEtMA_540bf54f-87c0-4342-bab6-8e7e8596e1a8">1,506,922</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term operating lease liabilities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjYtMS0xLTEtMA_3c2194f5-b816-460f-9942-ce47b2d5af02">17,551</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjYtMy0xLTEtMA_ea30afa3-4589-4812-a75d-11ac3ef1a5fe">19,264</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other long-term liabilities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherLiabilitiesNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjctMS0xLTEtMA_ed9d34e0-b216-4503-8402-89cdf194e58f">7,628</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherLiabilitiesNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjctMy0xLTEtMA_72250cc1-f91c-44d3-a154-78f411cd969d">5,705</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term liabilities</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjgtMS0xLTEtMA_779a68e2-3090-40e1-8565-6d932934d8d8">1,699,125</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjgtMy0xLTEtMA_d8e295e3-5fe7-4fac-bee2-d0ff2bb74b6d">1,531,891</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total liabilities</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Liabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjktMS0xLTEtMA_71c2ae4b-75c1-4d6d-8ada-7a040fe081cb">1,950,218</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Liabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjktMy0xLTEtMA_9e787388-9200-420f-b25d-1dc5639d77a6">1,641,623</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commitments and contingencies</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" xsi:nil="true" name="us-gaap:CommitmentsAndContingencies" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzAtMS0xLTEtMA_bfa5a62c-8fd0-45f2-b3dc-e3b26c4e31a3"></ix:nonFraction></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" xsi:nil="true" name="us-gaap:CommitmentsAndContingencies" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzAtMy0xLTEtMA_d1f007f2-e074-4783-993c-5fe9ba88673d"></ix:nonFraction></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Stockholders' equity:</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Preferred stock, <ix:nonFraction unitRef="usdPerShare" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" name="us-gaap:PreferredStockParOrStatedValuePerShare" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzIx_9df2a03b-4a33-49c1-8af1-2e58adeb7672"><ix:nonFraction unitRef="usdPerShare" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" name="us-gaap:PreferredStockParOrStatedValuePerShare" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzIx_af520b53-2f3d-4cae-8acd-46f1982c6ac4">0.001</ix:nonFraction></ix:nonFraction> par value&#160;&#8211; <ix:nonFraction unitRef="shares" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:PreferredStockSharesAuthorized" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzM2_5cc78e79-31eb-440c-90a4-fd05c2044566"><ix:nonFraction unitRef="shares" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:PreferredStockSharesAuthorized" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzM2_a423b4b0-b15b-42da-b342-639e2b340942">10,000,000</ix:nonFraction></ix:nonFraction> shares authorized, <ix:nonFraction unitRef="shares" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:PreferredStockSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_0afdbd18-de02-4f22-9af5-de32ef58b960"><ix:nonFraction unitRef="shares" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:PreferredStockSharesOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_34ff9028-088e-4ae8-8b54-89f66082499c"><ix:nonFraction unitRef="shares" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:PreferredStockSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_433f038e-f561-4192-86cf-a8d57543a5af"><ix:nonFraction unitRef="shares" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:PreferredStockSharesOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_f87afcf4-040f-4646-81c5-28a0058d58af">no</ix:nonFraction></ix:nonFraction></ix:nonFraction></ix:nonFraction> shares issued and outstanding</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:PreferredStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMS0xLTEtMA_5cbac626-ba52-4d90-8e15-42b9101bd8ab">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:PreferredStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMy0xLTEtMA_b82cdc2b-8383-473a-aacf-de05d6a73056">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Common stock, <ix:nonFraction unitRef="usdPerShare" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" name="us-gaap:CommonStockParOrStatedValuePerShare" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzE4_eb8c28cf-0b88-4505-9890-e83886485ad6"><ix:nonFraction unitRef="usdPerShare" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" name="us-gaap:CommonStockParOrStatedValuePerShare" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzE4_fbd7d5cf-7368-441c-8942-c77303bee650">0.001</ix:nonFraction></ix:nonFraction> par value <ix:nonFraction unitRef="shares" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesAuthorized" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzMx_82d2e891-76d7-43fa-8263-2210c8d52e97"><ix:nonFraction unitRef="shares" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesAuthorized" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzMx_d653c909-e9e9-46d6-9f82-7e06ea5e6ead">400,000,000</ix:nonFraction></ix:nonFraction> shares authorized; <ix:nonFraction unitRef="shares" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzUz_39a9b274-3437-42ef-a28e-6c27d0a32f5d"><ix:nonFraction unitRef="shares" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzUz_9379a17a-c963-4c8c-a4ef-8bcb6e92a2ee">141,317,066</ix:nonFraction></ix:nonFraction> and <ix:nonFraction unitRef="shares" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzYw_51eaa406-f511-4b1a-994f-5b22104f541d"><ix:nonFraction unitRef="shares" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzYw_d5d5fe29-ac34-44a3-9e5c-1af297ca9faa">129,343,524</ix:nonFraction></ix:nonFraction> shares issued and outstanding at March&#160;31, 2021 and December&#160;31, 2020, respectively</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" name="us-gaap:CommonStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMS0xLTEtMA_4953da2b-5b89-49fe-875e-aa09c102af59">141</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" name="us-gaap:CommonStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMy0xLTEtMA_755a1ef7-1756-4c7d-b113-10aa95f50829">129</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Additional paid-in capital</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdditionalPaidInCapitalCommonStock" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzQtMS0xLTEtMA_c36ceb81-4009-489e-ac18-1f446b3b32c4">1,645,352</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdditionalPaidInCapitalCommonStock" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzQtMy0xLTEtMA_20f8218b-aab9-4f70-aa74-2dfafa63a781">1,030,577</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accumulated other comprehensive (loss) income</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzUtMS0xLTEtMA_738bb68e-fb13-4cb8-8f36-f85ebafee887">1,238</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzUtMy0xLTEtMA_7e56377d-7e27-4a6f-af13-1e325dff0559">1,530</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accumulated deficit</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:RetainedEarningsAccumulatedDeficit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzYtMS0xLTEtMA_5bbfe85a-a83d-4ab5-9496-c6c8f9f4d8d2">400,912</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:RetainedEarningsAccumulatedDeficit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzYtMy0xLTEtMA_1749c09d-8b05-4e2d-ae82-7d09e60adb03">422,601</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total stockholders' equity</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzctMS0xLTEtMA_75fdae0d-0c6f-49ec-8e30-444a780f323e">1,243,343</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzctMy0xLTEtMA_5a31e1a1-07fa-4709-808c-5322009179c1">609,635</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total liabilities and stockholders' equity</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesAndStockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzgtMS0xLTEtMA_ef4c3629-8ab9-4371-984d-bef843150482">3,193,561</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesAndStockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzgtMy0xLTEtMA_cf042797-f651-43f7-847d-aa2b7cdddd18">2,251,258</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-top:3pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See Notes to Condensed Consolidated Financial Statements.</span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">4</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_22"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CHEGG, INC.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(in thousands, except per share amounts)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(unaudited)</span></div><div style="margin-bottom:5pt;margin-top:8pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net revenues</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMi0xLTEtMS0w_0f11d819-11a5-4fa0-9bd1-8e523b061b88">198,378</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMi0zLTEtMS0w_289f3144-99dc-4ed9-8791-e60d55a259c3">131,590</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cost of revenues</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostOfRevenue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMy0xLTEtMS0w_5a96f1c9-cf69-4c3b-9855-9d9d375098a7">71,384</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostOfRevenue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMy0zLTEtMS0w_3b89ea6c-070e-4583-beb2-d7aeae9559d4">42,390</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gross profit</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:GrossProfit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNC0xLTEtMS0w_931e8574-e115-43cb-9430-76a155774572">126,994</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:GrossProfit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNC0zLTEtMS0w_4903b4ba-c9fb-4e83-bc24-91f48e15a2b2">89,200</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Operating expenses:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Research and development</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNi0xLTEtMS0w_3f2cc853-8242-49df-a69b-9acc6d1979b1">46,131</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNi0zLTEtMS0w_04880cf0-f69c-4fdb-98d0-064c20640d88">39,541</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Sales and marketing</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SellingAndMarketingExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNy0xLTEtMS0w_fd084cd7-cf5a-4b99-81a1-807fa2d5a0c3">26,214</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SellingAndMarketingExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNy0zLTEtMS0w_79786a83-0b27-4eb4-b086-f3edca849084">20,238</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General and administrative</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:GeneralAndAdministrativeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfOC0xLTEtMS0w_256e4393-81ae-4281-b94c-95771b1a7f9f">37,870</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:GeneralAndAdministrativeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfOC0zLTEtMS0w_059d5f56-3404-4a2c-bd6b-93881163ebe2">26,145</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total operating expenses</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTAtMS0xLTEtMA_0e385286-5084-4558-8b92-2bb01f619cea">110,215</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTAtMy0xLTEtMA_755c5a6a-5b0f-43ff-a152-7143209a21f6">85,924</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Income from operations</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTEtMS0xLTEtMA_19c21fca-c649-4ada-a572-049699548b44">16,779</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTEtMy0xLTEtMA_1c0cb85a-9830-4db3-abf5-bb8a87bf5b67">3,276</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest expense, net and other (expense) income, net:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest expense, net</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:InterestIncomeExpenseNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTMtMS0xLTEtMA_7ff94c1b-ce64-43f2-bce0-d94342191646">1,929</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:InterestIncomeExpenseNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTMtMy0xLTEtMA_95af8bd1-7c69-4a1d-a9bd-47dddd399d67">13,427</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other (expense) income, net</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTUtMS0xLTEtMA_d80603e8-4b68-4b78-b0b0-8893fc8d2e14">77,208</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTUtMy0xLTEtMA_1484a6c0-39e9-4a96-9a2b-bda23ab66d10">4,960</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total interest expense, net and other (expense) income, net</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTYtMS0xLTEtMA_c46c920d-71e7-473c-830b-8eb97f85f251">79,137</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTYtMy0xLTEtMA_f68982fa-839e-44e0-ae3d-067bd1055cc0">8,467</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss before provision for income taxes</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTctMS0xLTEtMA_2568e01b-f873-41bb-baeb-00ac4c9c5856">62,358</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTctMy0xLTEtMA_bab51e58-8bc8-4926-b4cd-3c1f4ded5d2f">5,191</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Provision for income taxes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTgtMS0xLTEtMA_0d21f7c3-80e8-423e-a6aa-4ce3675ecc88">2,821</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTgtMy0xLTEtMA_cdd58dce-067f-4bd4-9297-a7c809446cdb">522</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTktMS0xLTEtMA_ff73fc9d-4d33-473b-8351-81c4c9c5981e">65,179</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTktMy0xLTEtMA_c469d070-6f03-4989-9ac9-131f977b8929">5,713</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss per share, basic and diluted</span></td><td style="background-color:#cceeff;border-top:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usdPerShare" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" sign="-" name="us-gaap:EarningsPerShareBasicAndDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjAtMS0xLTEtMA_bc5122bc-a24d-410e-9273-586ed4bf1e78">0.49</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usdPerShare" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="2" sign="-" name="us-gaap:EarningsPerShareBasicAndDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjAtMy0xLTEtMA_4b3a8a2f-535c-42fb-a4eb-7583cecd636e">0.05</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Weighted average shares used to compute net loss per share, basic and diluted</span></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:3pt double #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjMtMS0xLTEtMA_721aeda4-7384-4402-a54f-2228242058c7">134,352</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:3pt double #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjMtMy0xLTEtMA_cf562aa2-2b7e-4f12-b9f1-e6ef909d2f1f">122,428</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-top:3pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See Notes to Condensed Consolidated Financial Statements.</span></div><div style="margin-top:3pt;text-align:center"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">5</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_25"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CHEGG, INC.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(in thousands)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(unaudited)</span></div><div style="margin-bottom:5pt;margin-top:8pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfMi0xLTEtMS0w_8ef9b521-146a-452d-bf9c-0f998f76ae4e">65,179</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfMi0zLTEtMS0w_c469d070-6f03-4989-9ac9-131f977b8929">5,713</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other comprehensive loss</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Change in net unrealized loss on available for sale investments, net of tax</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNC0xLTEtMS0w_b67a49b9-f271-4cd0-a5b0-e3959c8136c7">1,894</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNC0zLTEtMS0w_9bad8810-3005-4e41-9b0f-693c513e215e">3,267</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Change in foreign currency translation adjustments, net of tax</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNS0xLTEtMS0w_74e29708-2738-4876-a25f-fe665f35a7df">874</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNS0zLTEtMS0w_76408aaf-0033-4426-8bca-c9964908908b">999</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other comprehensive loss</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNi0xLTEtMS0w_596ec01d-5a77-4ae8-b9b9-f8d21943f039">2,768</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNi0zLTEtMS0w_db324f1a-c6f7-429a-a769-37cbf22edd42">4,266</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total comprehensive loss</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:ComprehensiveIncomeNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNy0xLTEtMS0w_9cf4517b-e764-4928-b7fc-0dc672cc079b">67,947</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:ComprehensiveIncomeNetOfTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNy0zLTEtMS0w_68a6f819-fc8e-473c-b4df-5e4ac7e97f0d">9,979</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-top:3pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See Notes to Condensed Consolidated Financial Statements.</span></div><div style="text-align:center"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">6</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_28"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CHEGG, INC.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(in thousands)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(unaudited)</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:33.841%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.671%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.747%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.606%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="33" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31, 2021</span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Common Stock</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Shares</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Par&#160;<br/>Value</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Additional Paid-In<br/>Capital</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Accumulated Other Comprehensive (Loss) Income</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Accumulated<br/>Deficit</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total Stockholders&#8217; Equity</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Balances at December 31, 2020</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i75ce8a2683c347d7a98fdee7717ac65d_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy0xLTEtMS0w_72272246-d7c2-4117-959a-8f3ba0269c94">129,344</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i75ce8a2683c347d7a98fdee7717ac65d_I20201231" decimals="-3" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy0zLTEtMS0w_241ee6d0-9619-4736-9896-7f808ae1f60e">129</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4d4f387db12e4009bec314d8495f9748_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy01LTEtMS0w_7f2db785-ef7b-42ac-87ee-53e8aa224cc5">1,030,577</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ifb4b8ca0211841198d6146d7fe70e467_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy03LTEtMS0w_d1e44d1c-c302-4cd9-8cbb-0f1861a5bc18">1,530</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i890f8d7a70ab4f98844f6f2e9fe0ffa9_I20201231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy05LTEtMS0w_721fb138-5e8e-439a-9221-53354e7fdd05">422,601</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy0xMS0xLTEtMA_40c14d47-6835-4976-8683-be7bb966e7c6">609,635</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cumulative-effect adjustment related to adoption of ASU 2020-06</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ic5f7018a85dd4c8da3865a618c6adbd0_I20201231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNC01LTEtMS0w_99be37e0-604b-4cc6-ba48-4028ee49e089">465,006</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie7498e02a2ec444da7609ab9f21e2267_I20201231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNC05LTEtMS0w_96e21cab-b375-49d9-9ab0-99602dd62855">86,868</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i5f911dc362d5417094d4c873132e64b3_I20201231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNC0xMS0xLTEtMA_460691b8-de6f-4d3d-9f69-7aa0d91bab3d">378,138</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Issuance of common stock in connection with equity offering, net of offering costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS0xLTEtMS0w_e9d03f51-bcec-48e0-8b1a-e51a3f326d6f">10,975</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS0zLTEtMS0w_16177c31-0789-41d0-bf5c-ca8e38989c41">11</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS01LTEtMS0w_2626f523-3520-4d5f-bd83-bfada2c3cce5">1,091,455</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS0xMS0xLTEtMA_72eeb708-8e27-4977-b010-7eda6e5f5d6d">1,091,466</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Equity component on conversions of 2023 notes and 2025 notes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNy01LTEtMS01NzY2_f39eb7a6-c4a8-423c-b9f4-b41d902a3fb9">11,305</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNy0xMS0xLTEtNTc2Ng_4127fa01-cb98-42fb-a3a3-9d511fdfb556">11,305</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Issuance of common stock upon conversions of 2023 notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" name="us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC0xLTEtMS0w_dcdfebb5-9c5c-4928-bd83-334284d37e70">126</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC0zLTEtMS0w_87df86a7-d0ee-4dbd-89e4-5bbfcbc73325">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC01LTEtMS0w_54cd9d3f-755b-41fa-8341-f134a7290eff">11,237</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC0xMS0xLTEtMA_a1dd4a59-6f62-4cf1-8384-67e5a02dc696">11,237</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net proceeds from capped call related to conversions and extinguishments of 2023 notes and 2025 notes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOS01LTEtMS0w_14c2f581-0ebf-4455-9779-db701738914f">23,577</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOS0xMS0xLTEtMA_4d2420c0-022f-46c0-bf6a-d988bbdc83af">23,577</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Issuance of common stock upon exercise of stock options and ESPP</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" name="chgg:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtMS0xLTEtNTc5MA_a4826b08-8223-4b70-b89c-2dce4471de78">44</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtMy0xLTEtNTc5MA_4179a7b2-d36f-41e4-98d5-bac4568a8d73">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" name="chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtNS0xLTEtNTc5MA_8dd71aaf-8738-45e9-8735-29d15730c483">346</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" name="chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtMTEtMS0xLTU3OTA_5b1ab2e2-773a-4f94-95b1-7b3e539f0222">346</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net share settlement of equity awards</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" name="us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtMS0xLTEtMA_cc8add95-c2e3-4787-946b-3d5e2f87492f">828</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331" decimals="-3" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtMy0xLTEtMA_740aed1b-5d12-4698-ad67-ec5c11e355c3">1</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtNS0xLTEtMA_af147cb1-5582-4906-bc44-9493fce7f0ac">59,176</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtMTEtMS0xLTA_efc8f781-b11a-4955-a415-707e32b6bd33">59,175</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Share-based compensation expense</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTMtNS0xLTEtMA_9f2f4ae0-663d-4eef-afe2-0d37d9d3757f">23,647</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTMtMTEtMS0xLTA_b89ddeba-2514-48c4-8af4-a4bb475e5b5d">23,647</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other comprehensive loss</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i15f99d6225a1475dabfcbfe681ae6a0d_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTQtNy0xLTEtMA_d2dab88f-d372-48a8-a819-06baa6d01b55">2,768</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTQtMTEtMS0xLTA_9c59507f-e95f-4c2c-8094-c7088a595995">2,768</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i821c84575341489b8a596c5a03fd77fd_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTUtOS0xLTEtMA_0c82e1a9-ea76-4542-8900-7725ae35d6ea">65,179</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTUtMTEtMS0xLTA_059cbe98-5a18-4d2b-94d8-4f7169dce24f">65,179</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Balances at March&#160;31, 2021</span></div></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="iacd285b7d6e34c16a7d58fce687179e9_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtMS0xLTEtMA_4b231e58-fa06-4e58-baae-8262e3c76b12">141,317</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iacd285b7d6e34c16a7d58fce687179e9_I20210331" decimals="-3" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtMy0xLTEtMA_d71adfc6-aa34-4054-be53-35274d5f7336">141</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie8ee3c40e8634abe852a1d56c23ce159_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtNS0xLTEtMA_670dac7f-b133-4b84-9c51-1b9fbdf805ac">1,645,352</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i7aaa64aa124644c7838caa74841e6d21_I20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtNy0xLTEtMA_c17faf99-105e-4d4b-b5c9-9e57eb5c96c2">1,238</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i7c8ffa9e6abe4879b6ee30c9c3c28132_I20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtOS0xLTEtMA_5a4b2c14-0255-4bff-8a33-6147fa515aa1">400,912</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtMTEtMS0xLTA_01a9aaf2-88a4-480f-9a1c-53ff422bfa42">1,243,343</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:33.841%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.671%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:4.747%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.606%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="33" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31, 2020</span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Common Stock</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Shares</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Par&#160;<br/>Value</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Additional Paid-In<br/>Capital</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Accumulated Other Comprehensive (Loss) Income</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Accumulated<br/>Deficit</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total Stockholders&#8217; Equity</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Balances at December 31, 2019</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ia37ef2d2a7f7485b8572cd1094d91041_I20191231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy0xLTEtMS0w_8cefd530-85a9-4e4d-8f69-dccb17856fc9">121,584</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ia37ef2d2a7f7485b8572cd1094d91041_I20191231" decimals="-3" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy0zLTEtMS0w_f06adde7-e042-4e44-abea-fd5e50ab6944">122</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i20920cf767dd4f03bff13d94454084d5_I20191231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy01LTEtMS0w_3bf635b9-acb3-4a3b-aa1f-629285b3a011">916,095</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="id87c44d70bb1487f8c695508be494317_I20191231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy03LTEtMS0w_e1edd5b1-4d5f-4b85-bef9-3c0d1e09fa21">1,096</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i557017987f1343b8adcb952c82c275e2_I20191231" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy05LTEtMS0w_7eaa8995-8466-4375-9361-dc655fe5a2fd">416,292</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i5bf00fd4408e491f9fcf190d7b6e322d_I20191231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy0xMS0xLTEtMA_05afa07c-8053-471a-b3e8-c2adeff655a2">498,829</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC0wLTEtMS0w_2686bbfc-8c61-49a3-893d-bd31e4b6bcc3">Cumulative-effect adjustment related to adoption of ASU 2016-13</span></span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i625eb39f43a24c1f99c2b239ffde49d3_I20191231" decimals="-3" sign="-" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC05LTEtMS0w_23b6620b-82a2-4414-8741-96a2d6864b7b">88</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i960217c9810e4a08921d0096f8bc7662_I20191231" decimals="-3" sign="-" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC0xMS0xLTEtMA_b05975ae-ae93-4acc-847b-7355c91199fe">88</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Issuance of common stock upon exercise of stock options and ESPP</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331" decimals="-3" name="chgg:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC0xLTEtMS0w_167b0500-c964-4b41-9cbe-a1ce5f48bcca">360</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC0zLTEtMS0w_41eb08e6-c241-4051-9cd4-350fc68a7ed3">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i910720ad46e84482856553bcc2f26dee_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC01LTEtMS0w_3a330a25-2a11-424a-8f28-c21afa20971e">2,665</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC0xMS0xLTEtMA_d9d976a5-2324-442d-9725-d8d0add340ae">2,665</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net share settlement of equity awards</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS0xLTEtMS0w_00290805-213f-4814-8c3e-c51f0bb3e43f">1,599</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331" decimals="-3" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS0zLTEtMS0w_d0adaaeb-0092-4693-a67e-df94ac231735">2</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i910720ad46e84482856553bcc2f26dee_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS01LTEtMS0w_b0c6e8d3-8e55-4fcc-bbb1-6f0ce9cb7f0a">46,836</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS0xMS0xLTEtMA_28600132-b2b2-4e63-a212-152476597756">46,834</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Share-based compensation expense</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i910720ad46e84482856553bcc2f26dee_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTEtNS0xLTEtMA_6fe12955-9ccd-4cef-8f98-34b2ef29b40a">18,334</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTEtMTEtMS0xLTA_66805f91-b30c-4ca0-8974-bbf2d7b1467a">18,334</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other comprehensive loss</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="id2073e9f1c574622b6e40d4ecbe419cc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTItNy0xLTEtMA_dc2a113d-1419-4924-be49-81518a85edcb">4,266</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTItMTEtMS0xLTA_7fdcb150-ab92-4e51-855b-59daeb88afc2">4,266</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i346ce45453a246f9964ac39e132492d5_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTMtOS0xLTEtMA_e95b94df-2f57-4d74-9d5a-31e371eed830">5,713</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTMtMTEtMS0xLTA_20d23a40-5c5e-4953-b3d0-1a7e85b76908">5,713</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Balances at March&#160;31, 2020</span></div></td><td colspan="2" style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i2b19887b2de84de9806daf4ce7a4aecd_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtMS0xLTEtMA_23eac20b-f98c-4744-82ba-8107710cc551">123,543</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2b19887b2de84de9806daf4ce7a4aecd_I20200331" decimals="-3" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtMy0xLTEtMA_a9148e6f-3f0f-4b52-8555-eac9e04d6b71">124</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib22efcd6cb7548278c203ebdbadacaa5_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtNS0xLTEtMA_523ec317-962e-47c8-ba65-fc70faf6333e">890,258</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib53e4c359806482ea0551651dd14ca2e_I20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtNy0xLTEtMA_2b5d1497-6efa-4b31-a6ab-18d0cc47706f">5,362</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="if216661a3c3b440d8fc41ee83780b4cc_I20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtOS0xLTEtMA_641beb82-cf51-4858-a0b2-eaa21d97eda9">422,093</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtMTEtMS0xLTA_bdcd0f66-e2a1-4485-b931-011ee920ab5c">462,927</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-top:3pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See Notes to Condensed Consolidated Financial Statements.</span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">7</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_31"></div><hr style="page-break-after:always"/><div style="min-height:45pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CHEGG, INC.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(in thousands)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(unaudited)</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash flows from operating activities</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMy0xLTEtMS0w_b935a8a7-ccec-44b1-8607-f27b562caf3a">65,179</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMy0zLTEtMS0w_669d64aa-4c84-414d-8239-b0c670b44bfd">5,713</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Adjustments to reconcile net loss to net cash provided by operating activities:</span></div></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Print textbook depreciation expense</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:DepreciationTextbookLibrary" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNS0xLTEtMS0w_59b35b85-d59a-415d-9512-8942420b2921">3,760</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:DepreciationTextbookLibrary" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNS0zLTEtMS0w_e6e9aacf-ede1-4ddd-86f5-fee7b9c69640">3,527</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other depreciation and amortization expense</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherDepreciationAndAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNi0xLTEtMS0w_d25f244b-7043-41f0-aee8-54b2c66163e1">14,846</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherDepreciationAndAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNi0zLTEtMS0w_5b81c97c-83d3-4a28-b750-0ec72d1fae49">9,243</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Share-based compensation expense</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNy0xLTEtMS0w_e75ecbaf-777f-41cd-9be3-f5127edf8083">23,100</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNy0zLTEtMS0w_27ee10f7-b3ce-44a4-b76d-958d0b1b5d5c">18,334</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of debt discount and issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AmortizationOfFinancingCostsAndDiscounts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfOC0xLTEtMS0w_5642620f-0911-4e4b-b17d-cc9b90a25a30">1,626</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AmortizationOfFinancingCostsAndDiscounts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfOC0zLTEtMS0w_94c66fac-7c26-4edc-a652-093f3a2dddcf">12,946</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on early extinguishment of debt</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTAtMS0xLTEtMA_eec24a9b-9d67-44df-9553-743c64766d09">78,152</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTAtMy0xLTEtMA_f206280d-3c59-4666-94a3-34544e9271ea">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on change in fair value of derivative instruments, net</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:DerivativeGainLossOnDerivativeNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMS0xLTEtMTM1_eaa05c1e-47a7-4d49-b766-1f6f6134bde2">7,148</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-5" format="ixt:zerodash" name="us-gaap:DerivativeGainLossOnDerivativeNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMy0xLTEtMTM1_61fcb066-9f82-443b-b243-6797c2a68ca3">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss from write-off of property and equipment</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" name="us-gaap:GainLossOnSaleOfPropertyPlantEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMS0xLTEtMA_65ec2697-5fd5-4761-81e5-ad12a17d33a4">757</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:GainLossOnSaleOfPropertyPlantEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMy0xLTEtMA_b5f41450-97df-4c81-a8cc-a9848a54438f">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gain on sale of strategic equity investment</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTQtMS0xLTEtNzkxMw_fc2801d5-1409-4f6f-beec-0b194c5a66d3">5,338</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTQtMy0xLTEtNzkxMw_0d5960d6-8c61-4fe8-bb9e-7e00cdafd9f2">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss (gain) on textbook library, net</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="chgg:TextbookLibraryGainLossNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTMtMS0xLTEtMA_7da400c2-058c-4ce6-9723-85db2aae1d09">4,028</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:TextbookLibraryGainLossNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTMtMy0xLTEtMA_30793a62-19f7-4fad-9597-5153e45acd51">1,175</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Operating lease expense, net of accretion</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseCost" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTUtMS0xLTEtMA_67fa0277-dd01-40a0-8b5b-c347a067082c">1,589</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseCost" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTUtMy0xLTEtMA_a6791d69-6091-4552-891f-993a57aae4d6">1,053</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other non-cash items</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" name="us-gaap:OtherNoncashIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTYtMS0xLTEtMA_8a9106b2-42fb-4b00-a844-f090c54e1743">87</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" name="us-gaap:OtherNoncashIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTYtMy0xLTEtMA_2450fd87-caab-4a4b-acdc-72df29546e0d">312</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Change in assets and liabilities, net of effect of acquisition of business:</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts receivable</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTgtMS0xLTEtMA_32c7870e-6b2f-4749-bc7f-0b8b07c9c92d">2,240</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTgtMy0xLTEtMA_7491ab5b-057c-4f29-8170-716b38f4da99">4,929</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prepaid expenses and other current assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInPrepaidExpensesOther" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTktMS0xLTEtMA_1f2068ee-79b1-47c3-a20e-567e0af70641">25,075</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInPrepaidExpensesOther" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTktMy0xLTEtMA_093ce7fe-34e9-4580-8720-e1063457941d">9,707</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other assets</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInOtherOperatingAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjAtMS0xLTEtMA_8690ce2f-7b6a-41e6-a08e-746625189c69">1,058</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInOtherOperatingAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjAtMy0xLTEtMA_84a3c989-6dfe-456e-8db9-69895097d6e8">1,425</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts payable</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccountsPayable" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjEtMS0xLTEtMA_fae49d68-0278-447e-bba0-955ca3860a82">6,597</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInAccountsPayable" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjEtMy0xLTEtMA_2c6dae2a-3361-4e18-8c07-34cd3d2c2535">436</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deferred revenue</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInDeferredRevenue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjItMS0xLTEtMA_7fdb3c0a-146b-4ec3-9ae7-2e0394d5843d">15,988</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInDeferredRevenue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjItMy0xLTEtMA_f3096d65-be84-4919-a058-e4ed61ac636f">16,973</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accrued liabilities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccruedLiabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjMtMS0xLTEtMA_82bf6c76-ed75-4445-b6b7-b0b7bf3a9932">9,386</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccruedLiabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjMtMy0xLTEtMA_73503ead-15b2-4e0f-b3ee-c63a80d96274">15,972</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other liabilities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInOtherOperatingLiabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjQtMS0xLTEtMA_a008c033-4130-40bb-9d19-06cb35dcbe7f">1,197</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInOtherOperatingLiabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjQtMy0xLTEtMA_2ffb6cd7-418a-4ae2-b7b4-44bfe6a7d2af">1,242</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 48.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net cash provided by operating activities</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInOperatingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjUtMS0xLTEtMA_bf1a5f6a-ac41-46b6-85ad-eb8c60150b9b">73,573</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInOperatingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjUtMy0xLTEtMA_91b7e86f-135f-4505-9d5f-d008d9ba95dd">62,967</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash flows from investing activities</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Purchases of property and equipment</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjctMS0xLTEtMA_6149fc4b-5cd9-480a-a381-a7d26bfcf6a2">18,984</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjctMy0xLTEtMA_a27d4377-0b2f-401f-bb56-e94c0fa4f538">19,965</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Purchases of textbooks</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:PaymentToPurchasesTextbooks" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjgtMS0xLTEtMA_eca85b61-72da-41de-860c-85340e41136a">4,527</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:PaymentToPurchasesTextbooks" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjgtMy0xLTEtMA_3c974705-be1b-4951-9787-2cbea8905266">36,830</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Proceeds from disposition of textbooks</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:ProceedsFromDispositionOfTextbooks" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjktMS0xLTEtMA_c507d271-ca92-46ba-b3db-5a2ce4b279da">4,038</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:ProceedsFromDispositionOfTextbooks" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjktMy0xLTEtMA_ce9aca41-432d-4a10-bfdc-9768cbdee586">2,170</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Purchases of investments</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquireMarketableSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzAtMS0xLTEtMA_c9aac075-dcd3-47a6-bfed-14e73a071e1a">925,748</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquireMarketableSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzAtMy0xLTEtMA_aab3e369-f768-45fe-9acd-f89e2a08585a">112,421</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Maturities of investments</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzItMS0xLTEtMA_61586708-b73f-44eb-8525-b8a31a4bb2a1">181,315</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzItMy0xLTEtMA_35ac52b0-4e60-482f-9b25-f2dc7cfa16bf">121,784</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Purchase of strategic equity investment</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:PaymentsToAcquireEquityMethodInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzMtMS0xLTEtMA_95cdd1b0-3c2d-4f09-ae7c-3cf174fe43f0">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquireEquityMethodInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzMtMy0xLTEtMA_ba9c1ca2-990a-4954-8795-455a8e1e9c4c">2,000</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Proceeds from sale of strategic equity investment</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromSaleOfEquityMethodInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMS0xLTEtNzkyMA_e0604e44-62b1-4fb2-a0d8-cec7f16fd27a">6,845</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:ProceedsFromSaleOfEquityMethodInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMy0xLTEtNzkyMA_68c9e5eb-cf15-4295-a8a1-94102b6ad020">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Acquisition of business, net of cash acquired</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzQtMS0xLTEtMA_e27be983-652a-4ffd-94bd-e9ae24d7983a">7,891</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzQtMy0xLTEtMA_b20a6cf5-07ae-447b-b5dc-fc0173fa7116">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 48.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net cash used in investing activities</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInInvestingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzUtMS0xLTEtMA_3acdbeda-35d0-4522-bca5-d58a255ac655">764,952</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInInvestingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzUtMy0xLTEtMA_5028a340-f7a6-4662-b105-78a10182e6d9">47,262</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash flows from financing activities</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Proceeds from common stock issued under stock plans, net</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" name="chgg:ProceedsFromIssuanceOfEmployeeStockPurchasePlan" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMS0xLTEtMA_b3d076b1-799b-485d-849f-cbc6c45642fa">347</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="chgg:ProceedsFromIssuanceOfEmployeeStockPurchasePlan" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMy0xLTEtMA_d6522d45-476b-46eb-8eec-d58e0b550375">2,667</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Payment of taxes related to the net share settlement of equity awards</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzgtMS0xLTEtMA_6c5f8932-0f7d-42f8-a59e-7c1c6f6e79fc">59,176</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzgtMy0xLTEtMA_52c68ea5-a860-4705-b50f-066f2849266c">46,836</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Proceeds from equity offering, net of offering costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromIssuanceOfCommonStock" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMS0xLTEtNzkyNg_efd8b01e-03cb-4cd9-a8ff-f1274168a8cd">1,091,466</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:ProceedsFromIssuanceOfCommonStock" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMy0xLTEtNzkyNg_a9c2f001-2d99-40f2-b87a-48564832ad84">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Repayment of convertible senior notes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDEtMS0xLTEtMA_2d0d354c-0268-49c5-b3b2-265d10c7c339">189,849</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:RepaymentsOfConvertibleDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDEtMy0xLTEtMA_4ecdc858-42fc-4644-8782-4a3eddf5409b">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Proceeds from exercise of convertible senior notes capped call</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromConvertibleDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDItMS0xLTEtMA_3d2d8467-770f-4989-ab13-4a7ea8a326c0">24,812</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:ProceedsFromConvertibleDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDItMy0xLTEtMA_d38ed9f6-2f82-4b30-86c6-8ca213fc0f85">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 48.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net cash provided by (used in) financing activities</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInFinancingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDQtMS0xLTEtMA_b9d8265e-72fa-4c4f-b165-6d2eb5b30688">867,600</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInFinancingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDQtMy0xLTEtMA_dc2d9b23-392e-434c-ad39-5c3f152be48a">44,169</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net increase (decrease) in cash, cash equivalents and restricted cash</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMS0xLTEtMA_0abb80ac-0d25-41ba-af09-4828008180a9">176,221</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMy0xLTEtMA_5fed1245-1a27-4767-8f67-a8db603ac1e5">28,464</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash, cash equivalents and restricted cash, beginning of period</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDYtMS0xLTEtMA_99d91e34-017a-49f3-8aef-9d8d15971784">481,715</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i5bf00fd4408e491f9fcf190d7b6e322d_I20191231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDYtMy0xLTEtMA_913e55a2-e2f8-43ea-8ece-cc40e3c10220">389,432</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash, cash equivalents and restricted cash, end of period</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDctMS0xLTEtMA_72d96a8a-9afd-42ae-b47b-b6923e75180e">657,936</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDctMy0xLTEtMA_96aa2259-1c37-41e9-8a6a-b9d5e78edf3d">360,968</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Supplemental cash flow data:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash paid during the period for:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" name="us-gaap:InterestPaidNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNC0xLTEtMS0w_93a0fc20-54ea-4279-af67-77eb3c50fd0c">502</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" name="us-gaap:InterestPaidNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNC0zLTEtMS0w_fe5521bb-b428-4005-b5e6-75d7864d28be">500</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Income taxes, net of refunds</span></td><td style="background-color:#ffffff;border-top:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncomeTaxesPaidNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNS0xLTEtMS0w_6f38a6ea-0833-414e-a423-f984bfd0443a">3,063</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" name="us-gaap:IncomeTaxesPaidNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNS0zLTEtMS0w_480d13e9-5d92-49a8-9d3c-da13aee213c6">756</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash paid for amounts included in the measurement of lease liabilities:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Operating cash flows from operating leases</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeasePayments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNy0xLTEtMS0w_84179c85-e151-46bb-9520-05db5c52b02d">1,998</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeasePayments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNy0zLTEtMS0w_48e193c5-61aa-4897-b736-876893832972">1,572</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Non-cash investing and financing activities:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accrued purchases of long-lived assets</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" name="us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTEtMS0xLTEtMA_abb5d7d2-b7a6-4592-adb3-c5e8757a3042">904</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTEtMy0xLTEtMA_56b684ec-d8c5-497d-b330-84a3105076c0">8,020</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Issuance of common stock related to repayment of convertible senior notes</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:StockIssuedRepaymentForConvertibleSeniorNotes" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTQtMS0xLTEtMA_95e99a30-1db8-4ae0-a989-bf634e206cc6">11,237</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:3pt double #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:3pt double #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="chgg:StockIssuedRepaymentForConvertibleSeniorNotes" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTQtMy0xLTEtMA_8a074556-cc51-4b1e-ad75-a94b1f57d77d">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:3pt double #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31,</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Reconciliation of cash, cash equivalents and restricted cash:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfMy0xLTEtMS0w_704a6d3c-221c-4bab-b428-c9b9f0b3923e">656,168</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfMy0zLTEtMS0w_41f483b3-7622-4981-aee3-8de85d5d4f39">359,101</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Restricted cash included in other current assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNC0xLTEtMS0w_9456c545-7057-4d17-9574-16adbd0161ea">38</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331" decimals="-3" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNC0zLTEtMS0w_24b63382-8626-4fa3-98b7-94b95ce314a3">306</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Restricted cash included in other assets</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNS0xLTEtMS0w_3ca62847-5935-490a-9fb9-7890de5c3301">1,730</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNS0zLTEtMS0w_5abe4b96-1159-476f-9480-54ec2e94e110">1,561</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 25.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash, cash equivalents and restricted cash</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNi0xLTEtMS0w_22f73730-5540-45d8-9ec9-e933fb106345">657,936</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNi0zLTEtMS0w_b6186cc7-b83a-4b3b-acb4-92c3c3a0a7b0">360,968</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See Notes to Condensed Consolidated Financial Statements. </span></div><div style="height:45pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">8</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_34"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CHEGG, INC.</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS</span></div><div style="text-align:center"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_37"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 1. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMyODc_6d77c870-d7d2-426e-b0f0-02b883e4be99" continuedAt="i690004f4a7a842169d7b38f6a44de638" escape="true">Background and Basis of Presentation</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i690004f4a7a842169d7b38f6a44de638" continuedAt="i7a6a15ef178248beb44429b753189107"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Company and Background</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Chegg, Inc. (Chegg, the Company, we, us, or our), headquartered in Santa Clara, California, was incorporated as a Delaware corporation in July&#160;2005.&#160;Chegg is A Smarter Way to Student</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">&#174;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. We strive to improve educational outcomes by putting the student first. We support students on their journey from high school to college and into their career with tools designed to help them learn their course materials, succeed in their classes, save money on required materials, and learn the most in-demand skills. Our services are available online, anytime and anywhere. </span></div><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:BasisOfAccountingPolicyPolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMyOTg_89dca965-e2c6-4880-ad41-8f5679b5b496" escape="true"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Basis of Presentation</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying condensed consolidated balance sheet as of&#160;March&#160;31, 2021, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive loss, the condensed consolidated statements of stockholder's equity, and the condensed consolidated statements of cash flows for the three months ended March 31, 2021 and 2020, and the related footnote disclosures are unaudited. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of&#160;March&#160;31, 2021, our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the three months ended March 31, 2021 and 2020. Our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the&#160;three months ended&#160;March&#160;31, 2021&#160;are not necessarily indicative of the results to be expected for the full year.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We operate in a single segment. Our fiscal year ends on December&#160;31 and in this report we refer to the year ended&#160;December&#160;31, 2020&#160;as&#160;2020.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended&#160;December&#160;31, 2020&#160;(the Annual Report on Form 10-K) filed with the U.S. Securities and Exchange Commission (SEC).</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Except for our policies on convertible senior notes, net, share-based compensation expense, and net loss per share, there have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K. Our policies on convertible senior notes, net and net loss per share were updated as a result of our adoption of Accounting Standards Update (ASU) 2020-06, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> on January 1, 2021 under the modified retrospective method. For further information on ASU 2020-06, see the section below titled &#8220;Recent Accounting Pronouncements&#8221; of this Note 1, &#8220;Background and Basis of Presentation.&#8221;</span></div></ix:nonNumeric><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:DebtPolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMzMjk_3dc77785-f341-4a36-99c3-10a393b7f160" continuedAt="ic061cfe42c4a48d88098315bef125544" escape="true"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Convertible Senior Notes, net</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, we issued $<ix:nonFraction unitRef="usd" contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="9" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTcxMA_1ea87bdc-5092-4aa6-a209-a95dfd4eb313">1.0</ix:nonFraction> billion in aggregate principal amount of <ix:nonFraction unitRef="number" contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTc0Ng_632c0ebf-54fd-4e98-b8ba-8f0953676c67">0</ix:nonFraction>% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $<ix:nonFraction unitRef="usd" contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTgyNQ_1766597c-88b8-4d5c-b2bd-d2eeca868f2a">700</ix:nonFraction> million in aggregate principal amount of&#160;<ix:nonFraction unitRef="number" contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTg2MQ_7d22a062-633c-4522-911a-d58bb8aad5fb">0.125</ix:nonFraction>%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $<ix:nonFraction unitRef="usd" contextRef="ice301df70ab24ce782093b82b383deac_I20190430" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTk5Nw_29ee9aef-9d81-4770-9375-cedc74b2ad8a">100</ix:nonFraction> million of additional 2025 notes for aggregate total gross proceeds of $<ix:nonFraction unitRef="usd" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="-6" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromIssuanceOfDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNjA2Mw_4aa8d45c-43ce-48c8-9d92-492c2fe46c37">800</ix:nonFraction> million. In April 2018, we issued&#160;$<ix:nonFraction unitRef="usd" contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNjA5Mg_d98e6058-eb9d-461b-82a0-1f3316c3d551">345</ix:nonFraction> million in aggregate principal amount of&#160;<ix:nonFraction unitRef="number" contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNjEyOA_927f5d64-d1b8-4380-ad3c-fc67c453077a">0.25</ix:nonFraction>%&#160;convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the &#8220;notes.&#8221; The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our condensed consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our condensed consolidated balance sheets. In accounting for </span></div></ix:nonNumeric></ix:continuation><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">9</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="i7a6a15ef178248beb44429b753189107" continuedAt="ib51c001f50df454ea461a2d8373bbae2"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:continuation id="ic061cfe42c4a48d88098315bef125544">extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our condensed consolidated statements of operations.</ix:continuation></span></div><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY3NA_ae561c28-2d8c-402d-9741-814a0c6222dc" escape="true"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Share-based Compensation Expense</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial performance targets is measured based on the closing fair market value of the Company&#8217;s common stock, PSUs with a market-based condition is estimated using a Monte Carlo simulation model, and the ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense, subject to continuing service over the requisite service period, which is generally the vesting period, on a straight-line basis for RSUs and the ESPP and on a graded basis for PSUs. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.</span></div></ix:nonNumeric><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:EarningsPerSharePolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY3Mw_56b3e57e-f9e8-4912-a695-aa7119fe9e5c" escape="true"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Net Loss Per Share</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. Diluted net loss per share assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later).</span></div></ix:nonNumeric><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:UseOfEstimates" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMzMTk_a0691c88-3958-4e77-9cd8-d4cdb94bb4f3" continuedAt="ic40a4a19f277462b9fc8370c63b552ab" escape="true">Use of Estimates</ix:nonNumeric></span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:continuation id="ic40a4a19f277462b9fc8370c63b552ab">The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management&#8217;s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations.</ix:continuation> Except for estimates related to the grant-date fair value of PSUs with a market-based condition, there have been no material changes in our use of estimates during the&#160;three months ended March 31, 2021&#160;as compared to the use of estimates disclosed in Part II, Item 8 &#8220;Consolidated Financial Statements and Supplementary Data&#8221; contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2020.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Reclassification of Prior Period Presentation</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In order to conform with current period presentation, $<ix:nonFraction unitRef="usd" contextRef="i632921c54b764fe89fbd2bb5011740fa_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:AccruedLiabilitiesCurrent" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNDk0NzgwMjQwNzA4Mw_680509c8-9f37-424f-bf2c-f6088d359bdb"><ix:nonFraction unitRef="usd" contextRef="i632921c54b764fe89fbd2bb5011740fa_I20201231" decimals="-5" sign="-" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNDk0NzgwMjQwNzA4Mw_76ba42e6-9d38-4849-80ba-7e53f5c39040">6.6</ix:nonFraction></ix:nonFraction>&#160;million of current operating lease liabilities have been reclassified to accrued liabilities on our condensed consolidated balance sheet as of December&#160;31, 2020. This change in presentation does not affect previously reported results.</span></div></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">10</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ib51c001f50df454ea461a2d8373bbae2"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Condensed Consolidated Statements of Operations Details</span></div><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY5MA_b131c39b-1dae-428d-ba5a-056d2801e1a7" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other (expense) income, net consists of the following (in thousands):</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on early extinguishment of debt</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMi0xLTEtMS02MTY1_2b605fad-c515-4736-b1b5-8168714a0702">78,152</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMi0zLTEtMS02MTY1_a765e3ef-c2ff-408f-a667-453004d3da29">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on change in fair value of derivative instruments, net</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:DerivativeGainLossOnDerivativeNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMy0xLTEtMS02MTY1_030e7803-696c-423b-9996-6de8254b6f0d">7,148</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:DerivativeGainLossOnDerivativeNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMy0zLTEtMS02MTY1_4d0a8820-0d17-48c8-9528-8260f831974a">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gain on sale of strategic equity investment</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNC0xLTEtMS02MTY1_9bf4ea7a-6aa0-4f0e-8164-5854e5a31f82">5,338</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:zerodash" name="us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNC0zLTEtMS02MTY1_75ddb6ec-d8a9-46e3-868c-298edb353750">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest income</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InterestIncomeExpenseNonoperatingNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNS0xLTEtMS02MTY1_7b848834-d466-4cd7-bdc9-6025d63bcd2a">2,049</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InterestIncomeExpenseNonoperatingNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNS0zLTEtMS02MTY1_12b75f36-9dfd-4af8-96c2-3c1b165db714">4,856</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" name="chgg:OtherIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNi0xLTEtMS02MTY1_bdd2f0c8-ba60-4c1a-8d55-f3ea46ff99f3">705</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" name="chgg:OtherIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNi0zLTEtMS02MTY1_b5d3224e-982e-430b-915a-f82ba66f1eee">104</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total other (expense) income, net</span></div></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNy0xLTEtMS02MTY1_089b600b-d085-4691-978f-a79c086d7c8b">77,208</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNy0zLTEtMS02MTY1_e9a66836-b8f5-42f5-a914-adfcff60e6d2">4,960</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> For further information, see Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes.&#8221;</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> For further information, see Note 4,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Cash and Cash Equivalents, and Investments.&#8221;</span></div></ix:nonNumeric><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMzMjY_5d940a57-14fa-4d3a-a506-a8d0cc3b40b9" escape="true"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Recent Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Recently Issued Accounting Pronouncements Not Yet Adopted</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There were no accounting pronouncements issued during the three months ended March 31, 2021 that would have an impact on our financial statements.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Recently Adopted Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Debt - Debt with Conversion and Other Options</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $<ix:nonFraction unitRef="usd" contextRef="i12764ae8b0df47c59efefac345506072_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNDk0NzgwMjQwMzQ0MA_47f793b4-c778-4de0-b044-4b84d97c6ab8">378.1</ix:nonFraction>&#160;million and a decrease to additional paid-in capital of $<ix:nonFraction unitRef="usd" contextRef="ic5f7018a85dd4c8da3865a618c6adbd0_I20201231" decimals="-5" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY3Nw_9b2e0621-e23d-47b3-9e74-2d6ed537980c">465.0</ix:nonFraction> million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $<ix:nonFraction unitRef="usd" contextRef="ie7498e02a2ec444da7609ab9f21e2267_I20201231" decimals="-5" sign="-" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY4Mw_900cac13-217a-40d3-b067-8b598716ae13">86.9</ix:nonFraction> million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes&#8221; for more information.</span></div></ix:nonNumeric></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_40"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 2. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:RevenueFromContractWithCustomerTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjQxMw_db0b71a5-0a70-4eac-b0e1-5e4da91ecbf3" continuedAt="i5eeafdcdf9b54163adfdd3163df587b8" escape="true">Revenues</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i5eeafdcdf9b54163adfdd3163df587b8" continuedAt="if515638058ea4c0ca759bca17a55f29e"><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Revenue Recognition</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The majority of our revenues are recognized over time as services are performed, with certain revenues being recognized at a point in time.</span></div></ix:continuation><div style="text-align:justify;text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">11</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="if515638058ea4c0ca759bca17a55f29e"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:DisaggregationOfRevenueTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjQxMA_9bb48e4f-f49c-4410-851b-340f830226f9" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:53.870%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.655%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chegg Services</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie590078ba2a448f3881817928004f15b_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi0xLTEtMS0w_0b64a0f3-cfdc-4fe4-b29c-ab8a01cabe06">162,351</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i5a78adcd90564a4eb2a754b561ee3c43_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi0zLTEtMS0w_0a4b2017-8515-46dd-8586-63b7b73a2396">100,359</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie590078ba2a448f3881817928004f15b_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi03LTEtMS0w_aca20d6c-4bdc-4719-bbbe-731d68853099">61,992</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="ie590078ba2a448f3881817928004f15b_D20210101-20210331" decimals="2" name="chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi05LTEtMS0w_e1fca9de-0081-44ff-8674-1c3c44ef8b92">62</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Required Materials</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy0xLTEtMS0w_859e3d8a-6b62-4621-9a8c-abab61658a44">36,027</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2b6775fdc1ee4d19a27b34602e5bfc47_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy0zLTEtMS0w_ccd3b647-b5ee-42a8-9a39-8266e9008090">31,231</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy03LTEtMS0w_9cd1d7e2-6c8a-4d8d-a6ed-a312c737b782">4,796</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331" decimals="2" name="chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy05LTEtMS0w_0951cb40-0ef6-4cf6-92a8-31e5dc8063c1">15</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total net revenues</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC0xLTEtMS0w_4ff007ab-d6e1-4352-a7a9-1a62e975b0c2">198,378</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC0zLTEtMS0w_f2bd3b9a-eed8-446b-b41c-323b29e26430">131,590</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC03LTEtMS0w_b2d7a182-75e7-4d59-9fa6-e1e554272668">66,788</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" name="chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC05LTEtMS0w_29d1ae18-97e5-4a16-8b97-c3399fa800cc">51</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div></ix:nonNumeric><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021 and 2020, we recognized $<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfNzU0_3ae43f5b-1ca1-4983-ac2f-1e45e5e8a585">29.5</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTA5OTUxMTYzMDM0Nw_5117c0be-910d-4a43-b67a-0568041af84f">17.5</ix:nonFraction>&#160;million, respectively, of revenues that were included in our deferred revenue balance at the beginning of each reporting period. During the three months ended March 31, 2021 and 2020, we recognized $<ix:nonFraction unitRef="usd" contextRef="i578269ecbac0452bbac81b4e6b217570_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseLeaseIncome" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTQ5OQ_07756307-381e-47b5-b031-83e654263e3d">10.7</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i5516c03521734fb592365f3971ab5928_D20200101-20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseLeaseIncome" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTA5OTUxMTYzMDgxNA_295780a7-6c58-4fe2-b62c-9033ffeb03b8">12.3</ix:nonFraction> million, respectively, of operating lease income from print textbook rentals that we own.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Contract Balances</span></div><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjQyMw_e25d8edc-8460-4069-944e-9288254da098" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table presents our accounts receivable, net, deferred revenue, and contract assets balances (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.561%"><tr><td style="width:1.0%"></td><td style="width:53.672%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.647%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.647%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.647%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.685%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts receivable, net</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy0xLTEtMS0w_71fefc1a-11f8-42d7-a6d5-4a61dc335e94">11,633</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy0zLTEtMS0w_d31d7c3b-7852-4064-9158-6bd1f1924a0b">12,913</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="chgg:IncreaseDecreaseInAccountsReceivableNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy03LTEtMS0w_ea67fa0b-85ad-4d82-ac7b-66eff6400281">1,280</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" sign="-" name="chgg:IncreaseDecreaseinAccountsReceivablePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy05LTEtMS0w_408fc513-ca61-432c-a532-7f11b7b144a5">10</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deferred revenue</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC0xLTEtMS0w_39ecae2a-b3e1-4acb-88fa-3dcbcaff576a">48,608</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC0zLTEtMS0w_94bae824-68f1-4279-9404-de8f030e53da">32,620</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC03LTEtMS0w_3587667f-eb97-4d18-8fb6-e8f90465bb77">15,988</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" name="chgg:IncreaseDecreaseinContractwithCustomerLiabilityPercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC05LTEtMS0w_a401d291-e36a-4ff6-be79-4f7eed0cf2be">49</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Contract assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerAssetNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS0xLTEtMS0w_09a3e23c-8959-4876-83cf-991b7b927872">18,043</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerAssetNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS0zLTEtMS0w_40fc1141-210d-488a-9ae0-9b29358c06b3">13,243</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:IncreaseDecreaseInContractWithCustomerAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS03LTEtMS0w_ec500dda-01ec-4182-825f-8fc75373724b">4,800</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" name="chgg:IncreaseDecreaseInContractWithCustomerAssetsPercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS05LTEtMS0w_7e136607-c0d6-48e5-9f62-d489a093046e">36</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, our accounts receivable, net balance decreased by $<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-5" sign="-" format="ixt:numdotdecimal" name="chgg:IncreaseDecreaseInAccountsReceivableNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTk3Mw_deb26e57-e2ff-46c7-80fe-5ede1253c408">1.3</ix:nonFraction> million, or <ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" sign="-" name="chgg:IncreaseDecreaseinAccountsReceivablePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTk4MA_408fc513-ca61-432c-a532-7f11b7b144a5">10</ix:nonFraction>%, primarily due to timing of billings and seasonality of our business. During the three months ended March 31, 2021, our deferred revenue balance increased by $<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjEwMw_0f61816b-2df5-4570-b9c0-e0233eed3be1">16.0</ix:nonFraction> million, or <ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" name="chgg:IncreaseDecreaseinContractwithCustomerLiabilityPercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjExMA_a401d291-e36a-4ff6-be79-4f7eed0cf2be">49</ix:nonFraction>%, primarily due to increased bookings driven by higher Chegg Services revenue. During the three months ended March 31, 2021, our contract assets balance increased by $<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="chgg:IncreaseDecreaseInContractWithCustomerAssets" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjMzOA_7ff0c6a6-0ff1-475b-8240-1a55f6ad5095">4.8</ix:nonFraction> million, or <ix:nonFraction unitRef="number" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" name="chgg:IncreaseDecreaseInContractWithCustomerAssetsPercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjM0NQ_7e136607-c0d6-48e5-9f62-d489a093046e">36</ix:nonFraction>%, primarily due to the income sharing payment arrangements we offer to students for our Thinkful service.</span></div></ix:continuation><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_43"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 3. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:EarningsPerShareTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RleHRyZWdpb246YTAyMzljODVkYTEwNDg1ZDgxMjIzZjkwZjYxNmQ3YjZfMjI5MQ_df58b081-749e-4c4f-8653-277ee66a9aab" continuedAt="i3710e7bf7f7a4cfabbdd833fd269a24d" escape="true">Net Loss Per Share</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i3710e7bf7f7a4cfabbdd833fd269a24d" continuedAt="ice075a09c0b3482f9c4ff07f1d9d00fd"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. ASU 2020-06 requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. Under the if-converted method, shares related to our convertible senior notes, to the extent dilutive, are assumed to be converted into common stock at the beginning of the period.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021 and 2020, basic and diluted net loss per share was the same, as the inclusion of all potential common shares outstanding would have been anti-dilutive. </span></div></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">12</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ice075a09c0b3482f9c4ff07f1d9d00fd"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RleHRyZWdpb246YTAyMzljODVkYTEwNDg1ZDgxMjIzZjkwZjYxNmQ3YjZfMjI5Nw_6b1759a5-3723-4efe-a398-91a7c0cee6d8" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.484%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.823%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Numerator:</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMy0xLTEtMS0w_c99b4686-aba6-4552-81ed-ddca112cfa15">65,179</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMy0zLTEtMS0w_3ee300a5-8591-48db-aa98-b63d44c7ca71">5,713</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Denominator:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Weighted average shares used to compute net loss per share, basic and diluted</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfNy0xLTEtMS0w_538e728e-1e34-4e41-855b-37b2bda39311">134,352</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfNy0zLTEtMS0w_5cfd966b-3255-4c5a-a997-dbc6e41f6e04">122,428</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:15pt"><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss per share, basic and diluted</span></div></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usdPerShare" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="2" sign="-" name="us-gaap:EarningsPerShareBasicAndDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMTMtMS0xLTEtMA_bc5122bc-a24d-410e-9273-586ed4bf1e78">0.49</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usdPerShare" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="2" sign="-" name="us-gaap:EarningsPerShareBasicAndDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMTMtMy0xLTEtMA_4b3a8a2f-535c-42fb-a4eb-7583cecd636e">0.05</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RleHRyZWdpb246YTAyMzljODVkYTEwNDg1ZDgxMjIzZjkwZjYxNmQ3YjZfMjMxMQ_d3dad6b9-2c8b-4828-b427-6b35846e52ff" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Options to purchase common stock</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ifa0e963ae77b46f480a5dd642a9d4f8e_D20210101-20210331" decimals="-3" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMi0xLTEtMS0w_972a4ce2-b8f6-429a-81db-cb84d9643b44">556</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i10283bd5321e4f9187c34a63d7fa8c44_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMi0zLTEtMS0w_22811403-19c7-47dc-8259-d8428f7a96e2">1,050</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">PSUs and RSUs</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="idbe1e65f76754c88b280c40813c0710b_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMy0xLTEtMS0w_ca79bb0c-2732-4632-a5bd-a31c63b1334b">2,982</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="id30f84e2f8444a38acec1a8413c9f6a4_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMy0zLTEtMS0w_bb32da6e-1f63-4ca9-b26e-3c04e49f1cce">3,316</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Shares related to convertible senior notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i4a02fd92c9574f77b96324ae2ab96f31_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNC0xLTEtMS0w_2603dbbe-9814-4ab6-a9a3-a4c035465ceb">28,818</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i00f03062b4b244268679dc981bb66898_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNC0zLTEtMS0w_e991d4e9-d63f-4e26-a863-ae12451b3d80">3,968</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Employee stock purchase plan </span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i0079279e15e5491781efbf3f502fd962_D20210101-20210331" decimals="-3" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNS0xLTEtMS0w_852472c8-5f7b-4413-8f0e-1d418c45c9c6">25</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ib83486b403d3437bb79f0bf3c2cdb3c2_D20200101-20200331" decimals="-3" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNS0zLTEtMS0w_5b9e12b6-d348-4960-9959-d23a81905104">10</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total common stock equivalents</span></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNi0xLTEtMS0w_30bdfd65-7116-4b54-bed2-6b67ec1077cf">32,381</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNi0zLTEtMS0w_73c91823-05b4-43f9-8cb8-eca92ae53af0">8,344</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div></ix:nonNumeric></ix:continuation><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_46"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 4. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMzI1Nw_3ec519c8-b4ea-49d2-aa29-6cef7f0b2d35" continuedAt="i0d207941cfb94eb58d5eec0191ef5dda" escape="true">Cash and Cash Equivalents, and Investments</ix:nonNumeric></span></div><ix:continuation id="i0d207941cfb94eb58d5eec0191ef5dda" continuedAt="ib5bac11b22714fe1bdb0977ea3e0b329"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMzI1OQ_27314c79-73b4-44d3-9b1d-b205098e7eb5" continuedAt="ib8c12f4e174047e88fcccefe396bf62d" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following tables show our cash and cash equivalents, and investments&#8217; adjusted cost, unrealized gain, unrealized loss, and fair value as of March&#160;31, 2021 and December&#160;31, 2020 (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:49.923%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.602%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Gain</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Loss</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="icf0c070e556e42c183c49859532a8da0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy0xLTEtMS0w_7fc4874e-0068-4ca4-8558-fe4047f8d913">24,399</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="icf0c070e556e42c183c49859532a8da0_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy0zLTEtMS0w_a017e658-6f7e-499e-8be2-6c9f2f9a7707">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="icf0c070e556e42c183c49859532a8da0_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy01LTEtMS0w_abe4c162-6dd1-41b7-92e6-eb13056d853c">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="icf0c070e556e42c183c49859532a8da0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy03LTEtMS0w_8cec1a8c-88a8-487a-9af4-9d7ccd1cc41c">24,399</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS0xLTEtMS0w_a8e4e5a9-868d-425e-adeb-caa6559e6dd0">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS0zLTEtMS0w_b4aef613-6971-43df-aeae-5e98ef1a59d1">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS01LTEtMS0w_d7769ae5-a45a-4cdc-8c20-ab6277ddd0d5">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS03LTEtMS0w_d57577a2-e4ee-495f-990c-74d73d9d286f">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i172c78145baf41909551e840ec1ab464_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi0xLTEtMS0w_734546ce-4ba0-4299-958c-4e8d5362e0d4">99,277</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i172c78145baf41909551e840ec1ab464_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi0zLTEtMS0w_66312244-d48c-494b-ba94-e675fdeff9e7">1</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i172c78145baf41909551e840ec1ab464_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi01LTEtMS0w_3b34231b-0d56-4bba-89ad-fc6b6d185a33">2</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i172c78145baf41909551e840ec1ab464_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi03LTEtMS0w_a4519b7f-41d1-4c83-81d9-e7aaa64e2c05">99,276</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash and cash equivalents</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy0xLTEtMS0w_87aa7d7b-b290-463c-ab40-ff582455a50a">656,169</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy0zLTEtMS0w_4df6f6e2-7741-4fe1-b0e3-ad3b67d791fd">1</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy01LTEtMS0w_d46996a6-f92e-453f-bc88-3f108728bfac">2</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy03LTEtMS0w_57b9ae58-087a-4404-a6b4-2f2625af84d3">656,168</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS0xLTEtMS0w_eea8cf3c-e3db-4145-b09e-00eb5245148d">605,318</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS0zLTEtMS0w_de7f051c-9778-4e5a-bba2-0365d0f5bff3">78</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS01LTEtMS0w_35f500fe-357c-43a4-a001-610c2c9d6a4f">32</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS03LTEtMS0w_ec196556-4591-4a63-bde7-4c9c30af6fb8">605,364</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtMS0xLTEtMA_69090a43-5ff7-4be6-8214-d0fdf1940bf7">609,912</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtMy0xLTEtMA_1c7e6bba-25ee-44b5-aebd-3e00949eddb1">938</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtNS0xLTEtMA_c7f8174f-ef6f-4274-baa4-1336107ab428">270</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtNy0xLTEtMA_105c9c6a-de7c-4f45-b346-19296925b599">610,580</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total short-term investments</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtMS0xLTEtMA_29942c47-e701-4389-9696-4a4a79207c3a">1,215,230</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtMy0xLTEtMA_b828e4ee-1cf0-4412-8e51-89076a0d5941">1,016</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtNS0xLTEtMA_8f9ff4d4-c9fe-4a6b-9f4d-17a267394898">302</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtNy0xLTEtMA_2e870488-ad9e-43d9-87d8-1596a3433697">1,215,944</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtMS0xLTEtMA_beb1ee02-a1b2-4a66-8d88-f0cb944e3eb7">673,029</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtMy0xLTEtMA_a2221335-0611-4dee-98da-a421fae67d04">118</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtNS0xLTEtMA_d79e07be-bef5-488f-bc77-764728fd47eb">921</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtNy0xLTEtMA_803bb8e7-4e67-4841-a18d-ab3ac2eb98eb">672,226</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctMS0xLTEtMA_833c710b-c14c-494c-b451-9ccb3d1f4ea9">38,996</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctMy0xLTEtMA_1bf05b45-dbfc-4120-b3c0-23f01f044d04">4</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctNS0xLTEtMA_9339cdb9-c2b5-4f43-98f0-297d613bae3e">2</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctNy0xLTEtMA_9dcf6de5-e361-4a78-8ce7-dd7d67095a3d">38,998</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term investments</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtMS0xLTEtMA_46675010-636b-4437-86a4-b15a2e06d755">712,025</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtMy0xLTEtMA_c561fa40-f4a2-4fc2-8a85-b986585c8cb2">122</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtNS0xLTEtMA_13819e5a-7d69-471c-bac0-ee05747fda3d">923</ix:nonFraction>)</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtNy0xLTEtMA_067776d3-72c4-456a-849d-9bba41873196">711,224</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div></ix:nonNumeric></ix:continuation><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">13</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ib5bac11b22714fe1bdb0977ea3e0b329"><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><ix:continuation id="ib8c12f4e174047e88fcccefe396bf62d"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:49.923%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.602%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Gain</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Loss</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy0xLTEtMS0w_986f9da5-2778-4b73-83d3-2b29eae12092">15,054</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy0zLTEtMS0w_0eb9d058-0528-404a-861e-edf08dbbe6b0">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy01LTEtMS0w_39fe0193-36a7-4623-b557-4e7ad6be9789">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy03LTEtMS0w_cb206cb3-27b4-4262-b09b-8df477ca662c">15,054</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC0xLTEtMS0w_1213d062-a6c4-42db-b791-6cc18ebaeff2">464,799</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC0zLTEtMS0w_cab12649-7ae3-43f8-a0b4-846c4c75606b">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC01LTEtMS0w_f28b1915-5860-48df-bc53-fc65b62d5403">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC03LTEtMS0w_35f0f9ee-09d6-48a1-a23d-80918e95c0f4">464,799</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash and cash equivalents</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi0xLTEtMS0w_a17be63b-a8ba-4b0c-b82b-3b277a3da920">479,853</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi0zLTEtMS0w_4d09c11f-6ced-4300-b080-b1c067601e6f">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi01LTEtMS0w_ffbd4ca5-abb2-4bd7-b260-9769582b2604">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi03LTEtMS0w_ab40fc9d-88e2-46d3-b66a-1c59660354a5">479,853</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC0xLTEtMS0w_e0e3e593-80ed-4917-b1a7-02672eba6d01">204,152</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC0zLTEtMS0w_ff84c16d-fa74-4919-9334-81f209a0b893">24</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC01LTEtMS0w_3ae8d464-426e-4f6d-90c6-a2df6389ccd0">6</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC03LTEtMS0w_3dd41143-2d8a-4da2-b2ca-f34feffb291e">204,170</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i916f7c55327d42038ef1c618902902f8_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS0xLTEtMS0w_6d3e144f-1fe5-41db-9a42-afd5280362df">459,967</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i916f7c55327d42038ef1c618902902f8_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS0zLTEtMS0w_638d1da7-3022-4663-9e8a-d496ac13d03b">1,478</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i916f7c55327d42038ef1c618902902f8_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS01LTEtMS0w_18db0254-8cd7-429d-bb2d-763017143a88">48</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i916f7c55327d42038ef1c618902902f8_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS03LTEtMS0w_c370a3d6-1a4d-4717-8f24-6535c25a21aa">461,397</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total short-term investments</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4c91464096144bd1816925c57305ca66_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItMS0xLTEtMA_a8a0ec81-3c99-4ffd-aafb-67f4a760cfc3">664,119</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4c91464096144bd1816925c57305ca66_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItMy0xLTEtMA_cdab0b45-ac08-45bc-b77f-7c5e4056ff89">1,502</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i4c91464096144bd1816925c57305ca66_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItNS0xLTEtMA_b7b9c517-a6ad-4520-9591-1762661e60d7">54</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i4c91464096144bd1816925c57305ca66_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItNy0xLTEtMA_975927da-6dc4-47a5-9236-f7f0b378915e">665,567</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtMS0xLTEtMA_ff3db385-7180-401b-990a-a42068d71222">484,275</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtMy0xLTEtMA_4d529c0d-90f6-48c1-8de6-817585931c9d">605</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtNS0xLTEtMA_0ce102f2-eac1-4b2f-ac00-32779626e1d6">283</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtNy0xLTEtMA_1f5fb285-3617-4285-af5e-3af05c6d30ca">484,597</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtMS0xLTEtMA_bc4736c7-1f24-4706-b5c9-cba50c137a34">38,995</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtMy0xLTEtMA_e4ad9c41-0823-40cd-b4f5-2b042850adf1">36</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtNS0xLTEtMA_57bbdadb-ec78-4688-8105-422b25db09f3">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtNy0xLTEtMA_00210d1b-4396-4d9c-ba1c-62681afe6984">39,031</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term investments</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ied802633df7c4b63b27f5449be77be32_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctMS0xLTEtMA_32389d17-7389-407e-a16f-48679d67e0bd">523,270</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ied802633df7c4b63b27f5449be77be32_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctMy0xLTEtMA_c1c2d516-93cd-46e0-9714-0090159ecf79">641</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ied802633df7c4b63b27f5449be77be32_I20201231" decimals="-3" name="us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctNS0xLTEtMA_da1ec865-39a6-429c-93d4-85fc86ed127c">283</ix:nonFraction>)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ied802633df7c4b63b27f5449be77be32_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctNy0xLTEtMA_b0df2910-878c-4893-9f4c-39336ded222e">523,628</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></ix:continuation></div><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMzI2Mg_09ca7dce-f2a9-4d27-8770-190b89019894" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of&#160;March&#160;31, 2021 (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:74.706%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.630%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.631%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Due in 1 year or less</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMS0xLTEtMS0w_8132c8d9-a03b-4a2d-8aff-4f7e73ce84a9">1,314,507</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMS0zLTEtMS0w_bdacdd80-4173-4df1-b4dc-96ffdd66f8cc">1,315,220</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Due in 1-2 years</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMi0xLTEtMS0w_fb9808be-c67d-4a44-8e0f-7d04d2708437">712,025</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="chgg:AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMi0zLTEtMS0w_e40461d9-0f5b-48a2-af03-77d353371f3c">711,224</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Investments not due at a single maturity date</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMy0xLTEtMS0w_7984a20f-851d-44dd-91a7-bb9a8fe8c9e1">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMy0zLTEtMS0w_43532ef4-4322-4796-8644-20db2b06e7fb">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfNC0xLTEtMS0w_67566e2a-2adc-487e-8d4b-d45db29a1ca1">2,559,025</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AvailableForSaleSecuritiesDebtSecurities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfNC0zLTEtMS0w_b9aac829-4089-4f4c-8eff-8dc1398bb296">2,558,937</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Investments not due at a single maturity date in the preceding table consisted of money market funds.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of&#160;March&#160;31, 2021, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. When evaluating whether an investment's unrealized losses are related to credit factors, we review factors such as the extent to which fair value is below its cost basis, any changes to the credit rating of the security, adverse conditions specifically related to the security, changes in market interest rates and our intent to sell, or whether it is more likely than not we will be required to sell, before recovery of cost basis. We invest in highly rated securities with a minimum credit rating of A- and a weighted average maturity of less than <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" format="ixt-sec:durwordsen" name="chgg:AvailableForSaleSecuritiesWeightedAverageMaturity" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMTE2MA_468e2afc-a093-47c6-a83f-ae8f5a5e6a41">twelve months</ix:nonNumeric>. In addition, our investment policy limits the amount of our credit exposure to any one issuer or industry sector. The policy requires investments to be investment grade, with the primary objective of preserving capital and maintaining liquidity. Fair values were determined for each individual security in the investment portfolio. During the&#160;three months ended March 31, 2021 and 2020, we did not recognize any losses on our investments due to credit related factors.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Strategic Investments</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2020, we completed an investment of $<ix:nonFraction unitRef="usd" contextRef="i8e328d3f7ae94d14ad10de83aa462d9a_I20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMjA2Mg_de402d7c-fd2e-43b4-8d18-9de2d33b666c">2.0</ix:nonFraction> million in TAPD, Inc., also known as Frank, a U.S.-based service that helps students access financial aid. Additionally, we previously invested&#160;$<ix:nonFraction unitRef="usd" contextRef="i4ac53f75170148df9efb57cc2747b5a5_I20170930" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMjM2Mw_fb06e706-af5b-4dc1-b277-563810538dce">3.0</ix:nonFraction> million&#160;in a foreign entity to explore expanding our reach internationally. During the three months ended March 31, 2021, we sold our investment in a foreign entity for total consideration of $<ix:nonFraction unitRef="usd" contextRef="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:EquityMethodInvestmentSoldCarryingAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMTA5OTUxMTYzNDU1Mw_6f8ef9e3-646a-4d24-bd0f-abc6aca66a10">8.3</ix:nonFraction>&#160;million, resulting in a $<ix:nonFraction unitRef="usd" contextRef="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMjc0ODc3OTA3ODgyOA_18d4b731-fca9-405b-8b1f-ffcb5591d0cc">5.3</ix:nonFraction> million gain included within other (expense) income, net on our condensed consolidated statements of operations. We received a cash payment, net of taxes withheld, of $<ix:nonFraction unitRef="usd" contextRef="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromSaleOfEquityMethodInvestments" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfNDk0NzgwMjMzMjc0Mw_96f9b514-3d70-49f5-979e-25f3b60fa446">6.8</ix:nonFraction>&#160;million included within cash flows from investing activities on our condensed consolidated statements of cash flows. We did not record any impairment charges on our strategic investments during the three months ended March 31, 2021 and 2020, as there were no significant identified events or changes in circumstances that would be considered an indicator for impairment. We considered general market conditions as a result of the COVID-19 pandemic in our impairment analysis. There were no observable price changes in orderly transactions for the identical or similar investments of the same issuers during the three months ended March 31, 2021 and 2020.</span></div></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">14</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_49"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 5. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:FairValueDisclosuresTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI3Ng_fc2b5e7f-869e-477f-930f-d7537e25f9a4" continuedAt="i44c0db11439847a9bb994eb577404620" escape="true">Fair Value Measurement</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i44c0db11439847a9bb994eb577404620" continuedAt="i6028d1ecefc74c90a019fbf48c614499"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have established a fair value hierarchy used to determine the fair value of our financial instruments as follows:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 1&#8212;Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 2&#8212;Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 3&#8212;Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value; the inputs require significant management judgment or estimation.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">A financial instrument&#8217;s classification within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.</span></div><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI2OQ_c070909f-5e85-4ab3-a5be-398969069b42" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments measured and recorded at fair value on a recurring basis as of March&#160;31, 2021 and December&#160;31, 2020 are classified based on the valuation technique level in the tables below (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:62.350%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.600%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 1</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 2</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Assets:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash equivalents:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i3c93445b7b86422e8edfa5b04878d82b_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNS0xLTEtMS0w_2b692a25-db38-4fc8-9f39-77b14fdf0066">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i3d44b05731434be48f98b74572083fb3_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNS0zLTEtMS0w_540c6112-e71f-40b4-be17-a58b40700928">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="id8d4674a54a54b8f92c0487fcd87b14e_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNS01LTEtMS0w_cdac38bf-3faa-4edb-90b0-fec026856db5">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2e3bee8f9916464594628b713455ae42_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNi0xLTEtMS0w_7ef4556a-fea0-4e3d-9a9d-12dbf6a752fa">99,276</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ifca00fd8939544a2a2d9edb23b2289cf_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNi0zLTEtMS0w_fad616e1-0958-4f95-95b4-7b0a48476fa6">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic7a912906fee48328c1f9b00793b8eed_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNi01LTEtMS0w_a5641ea4-a3f0-4e9f-8c66-7e15bf8bbf7e">99,276</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i8acb9e05e21a49feb0632b34b6981fed_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOC0xLTEtMS0w_f5fb39fa-6587-4f05-a9c8-71cb4d5fecfd">605,364</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ia87b19132045443d98991df33f3686ca_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOC0zLTEtMS0w_d9e55fb6-3ada-4b1a-b640-eab80a77be43">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i5a245e9bb44e45d3b0bfbb9103f1bafa_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOC01LTEtMS0w_992cec35-738a-4816-b8c6-0f567e6036a2">605,364</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i137267fec3ea446490ce7cadd9c292e5_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOS0xLTEtMS0w_80cee47c-564d-423b-a4ef-69c3774b5fe2">610,580</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i57290ec5213c4fc6ad9484a5bf422121_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOS0zLTEtMS0w_9185cd7d-c2a0-490f-82f6-4b1723ea2d6c">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i19970572f5bc4130afaaaebb173f68db_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOS01LTEtMS0w_fc47f7f9-8a47-4f23-8103-75594d99c02c">610,580</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i137267fec3ea446490ce7cadd9c292e5_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTMtMS0xLTEtMA_16e79f65-2c49-4eaa-9282-f2733327d355">672,226</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i57290ec5213c4fc6ad9484a5bf422121_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTMtMy0xLTEtMA_d18a6a39-cdfa-4602-9210-2e9cb636813d">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i19970572f5bc4130afaaaebb173f68db_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTMtNS0xLTEtMA_da8d40b8-672f-4082-a626-8b3075cb2369">672,226</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i00e76bc4f3824b249cba395392d5cdd6_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTUtMS0xLTEtMA_56db28ed-a5fa-47cf-980a-e2f5b2322c65">38,998</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i5904dd9b1812445e958f4053ca2cda0a_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTUtMy0xLTEtMA_196a7f38-a0f7-43b3-9376-7882c7b80497">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ibbdec02910764ace805fcb3c9ef8fe86_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTUtNS0xLTEtMA_6bcf600d-a881-496a-a349-72ba1ce259de">38,998</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets measured and recorded at fair value</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i400b4a04d23446aca3c6f478368b9612_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTYtMS0xLTEtMA_578fe2c9-f28a-4b56-854f-6c242a869627">2,558,937</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ia70bf5bf4d9049119e6c38e39951a45a_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTYtMy0xLTEtMA_cf19733c-f405-41a5-9f90-7e41f736f021">532,493</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i5e76970462f04e609b9ad340b2f70038_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTYtNS0xLTEtMA_2f758f5f-48d0-4dae-b5bf-96c93d469e7c">2,026,444</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:62.350%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.600%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 1</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 2</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Assets:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash equivalents:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ifa05833312b64606bef2d50c7162b758_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNC0xLTEtMS0w_96071b31-248d-4d37-bc3e-df7fd19b249e">464,799</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iedcc0b8c9d6742b6b175dd9767223469_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNC0zLTEtMS0w_2afe0d2b-df31-4d95-a2d0-e743210c14d1">464,799</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib4bcab0d1a574dc7bf5765086d26ef6d_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNC01LTEtMS0w_6b22e233-e879-47aa-8654-92ab46c95dc1">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ieb780147ce0842dca611e13faf747691_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNy0xLTEtMS0w_5e77f5a3-79ca-4c11-ac53-1f2001f256f4">204,170</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib4fb5ce664814df2a4ec0aa1bf06089e_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNy0zLTEtMS0w_f6242897-d27b-43c0-877e-247c91405202">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i8c774c55638c45d0ae1a6631c3ea8718_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNy01LTEtMS0w_d6a41a88-4c0e-4f5c-986e-0b59ef753ab1">204,170</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i8ac28ab040314c8999c03a9ae78fc18d_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfOC0xLTEtMS0w_21d83f10-7369-42c5-817d-1605eac26911">461,397</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i61cb7edd5e844bc495f76a3cea58e192_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfOC0zLTEtMS0w_0bf26aff-a47e-4ac9-802a-b42a0a26210e">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i080fdcbd1db4436da89f44f299c92982_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfOC01LTEtMS0w_0e17885f-b608-414b-99c0-6114f597be5d">461,397</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i8ac28ab040314c8999c03a9ae78fc18d_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTItMS0xLTEtMA_3fa64a7b-fffa-4f1b-8fea-eaba9f828ade">484,597</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i61cb7edd5e844bc495f76a3cea58e192_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTItMy0xLTEtMA_173e2240-ebe8-409f-95a8-cc1dc59b9376">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i080fdcbd1db4436da89f44f299c92982_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTItNS0xLTEtMA_d1ae5d24-e6c4-4d29-b3b0-cf5f535575fa">484,597</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i3a32b85fa9c54f3c81becc293dca9f00_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTMtMS0xLTEtMA_0498b498-92e7-4714-a8c2-318232423607">39,031</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i996c1de95f6741089f3fa705d124b45f_I20201231" decimals="-3" format="ixt:zerodash" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTMtMy0xLTEtMA_d4429e85-7425-47d4-919b-c9e09ab100b8">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i3ee67983fdb64d048648316ca27c57e3_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermInvestments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTMtNS0xLTEtMA_b7da8f03-583b-4849-abbb-2e8c8986d8b5">39,031</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets measured and recorded at fair value</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i364b558b09924ec0a6801111772e64b3_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTQtMS0xLTEtMA_711380c0-4b6c-4370-8bfa-9b41805f4699">1,653,994</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="if2ee030ea58e4d42a2fc86e688ad2fe5_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTQtMy0xLTEtMA_2d9869d6-bbd1-464b-b391-23bc3f4bf6fa">464,799</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i17134a150c0746c69ca88b7fc2df41c9_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsFairValueDisclosure" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTQtNS0xLTEtMA_878a5b5f-3bd4-46ba-9297-e3c6c5a55da6">1,189,195</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div></ix:nonNumeric><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We value our investments based on quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. Other than our money market funds, we classify our fixed income available-for-sale investments as having Level 2 inputs. The valuation techniques used to measure the fair value of our investments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models such as discounted cash flow techniques. We do not hold any investments valued with a Level 3 input.</span></div></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">15</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="i6028d1ecefc74c90a019fbf48c614499" continuedAt="i9e3cf150b79d4119b100c5c0bce96b1b"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Financial Instruments Not Recorded at Fair Value on a Recurring Basis</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We report our financial instruments at fair value with the exception of the notes. The estimated fair value of the notes was determined based on the trading price of the notes as of the last day of trading for the period. We consider the fair value of the notes to be a Level 2 measurement due to the limited trading activity. For further information on the notes see Note 7, &#8220;Convertible Senior Notes.&#8221;</span></div><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI3NQ_799c9f4d-797d-46ab-b6b6-afd3abc6d18b" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The carrying amounts and estimated fair values of the notes as of March&#160;31, 2021 and December&#160;31, 2020 are as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:49.851%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.613%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.613%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.613%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.614%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Carrying Amount</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Estimated Fair Value</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Carrying Amount</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Estimated Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2026 notes</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iddbcfc913c1248099d6e071eab53ebd8_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi0xLTEtMS0w_ec07a13c-a6ad-46ef-9211-38f858fd89ac">985,706</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic539932282a54f25aef5baa74ccc4260_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi0zLTEtMS0w_75271d4b-d67d-494c-b4f9-ca27cc6fc6f6">1,054,020</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iac7af935c18447548371b256fa5adc25_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi01LTEtMS0w_6bb22b05-9c98-4a90-b021-122eace3e4e0">761,930</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i9dfc991bdd2945da8a20b758f5e7a4e4_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi03LTEtMS0w_0d7c0076-b8fa-43fd-87c8-eba961b71cc2">1,129,370</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2025 notes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i3a5ce7f3425745f381b986d2dcc4e04e_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy0xLTEtMS0w_2406b6f3-3194-4545-83ff-a162a93899bf">688,240</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i9ec9b226b4fc4bfbb99f48139cf7bed1_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy0zLTEtMS0w_2d2b1208-39eb-4701-a2cf-8eb9c5f9ce07">1,202,129</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i707cf4308ed9453cb40bc27962b1a349_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy01LTEtMS0w_da14681e-8cf8-4cf0-b712-aa13b01fda0b">640,614</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i93f8c639a0ed47bdab784fff08e21364_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy03LTEtMS0w_7f421e42-3928-4766-afc8-a43d29fc5024">1,456,800</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2023 notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i262c95c8588a42f3902ea5c2cd1a24c0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC0xLTEtMS0w_3259a95d-5bb4-4432-9b0b-1ffaa4126a3e">109,494</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i385386847f734c0ca41f00702907db6c_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC0zLTEtMS0w_d8349b6f-ea16-485b-8ac2-f87726602ba3">377,186</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i756b589cc250419ea816398952a55f38_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC01LTEtMS0w_ccb62fd2-a50a-4425-b427-d9abb0f7034a">104,378</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i9bc15106cbe84069b59b9c49e4407afc_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC03LTEtMS0w_8a061a7f-0644-4174-906f-7f0c3a541d23">376,949</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Convertible senior notes, net</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i8631bb0aa5c5403e9a670bd4ad3bb103_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS0xLTEtMS0w_2609bcd1-9fb1-4ebc-979f-9afe5c279e9d">1,783,440</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic4d1aadda93d4ee0b061ddaacc83fcb0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS0zLTEtMS0w_7fb65316-4ba1-4364-86ab-31e12ff1258e">2,633,335</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ifdb52672bb1a45f0abf595fa0238ed23_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS01LTEtMS0w_0a17063a-bd7b-4f41-bb96-5ae4cf80a7eb">1,506,922</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i68208b874ee847b78cb809d56e675824_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS03LTEtMS0w_6b7c5059-e531-475d-892f-a09c127eaab8">2,963,119</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes&#8221; for more information.</span></div></ix:nonNumeric></ix:continuation><div style="text-align:justify;text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:continuation id="i9e3cf150b79d4119b100c5c0bce96b1b">The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of March&#160;31, 2021 was net of unamortized issuance costs of&#160;$<ix:nonFraction unitRef="usd" contextRef="i11978135b6904d1baefe472298180885_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzA1Mg_988e94c7-a206-4f34-9811-4de1caa51d1d">14.3</ix:nonFraction> million, $<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzA1Ng_9de4858f-d19b-4073-b77f-02f3d31c86f0">11.8</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzA2Mw_b5cc99d5-8129-473e-92e1-2321678137e7">1.4</ix:nonFraction> million, respectively. The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of December&#160;31, 2020 was net of unamortized debt discount of&#160;$<ix:nonFraction unitRef="usd" contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMTY0OTI2NzQ0NjA2OQ_b1aa9414-048d-4e62-a930-130fe3bdf03e">226.7</ix:nonFraction> million, $<ix:nonFraction unitRef="usd" contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzE4Mw_490e00dd-4209-4904-b76f-39df52e3a254">149.1</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzE5MA_2c933a1c-9841-4a46-9db5-f19b246b1ce1">10.0</ix:nonFraction> million, respectively, and unamortized issuance costs of&#160;$<ix:nonFraction unitRef="usd" contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMTY0OTI2NzQ0NjA4MA_3dc16e87-af5e-4b5a-9b82-44d998cec03d">11.3</ix:nonFraction> million, $<ix:nonFraction unitRef="usd" contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI0Mg_32264eac-0602-4994-a993-140653b4162d">10.2</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI0OQ_865227f0-d292-4efc-a7ec-fd60fb06fe6f">1.2</ix:nonFraction> million, respectively.</ix:continuation> </span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_52"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 6. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:BusinessCombinationDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfMzMzOQ_f1aa2031-7690-40fb-a60f-35754f944acd" continuedAt="i0be31ccfc6eb443f8cbe896d3c032625" escape="true">Acquisition</ix:nonNumeric></span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:continuation id="i0be31ccfc6eb443f8cbe896d3c032625">On February 22, 2021, we completed an acquisition, accounted for as a business combination, of <ix:nonFraction unitRef="number" contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222" decimals="INF" name="chgg:BusinessCombinationPercentOwnershipAcquired" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfMTA5OTUxMTYzOTIwNQ_b1e434fe-99e5-44a3-a79f-fdefd0cdd3f3">100</ix:nonFraction>% of the outstanding shares of a company for a technology that will strengthen our content creation abilities for a purchase consideration of $<ix:nonFraction unitRef="usd" contextRef="ice3bd056eafd49bd9708b80fad62ef9d_D20210222-20210222" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquireBusinessesGross" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNDk5Ng_f18631a4-2b9a-4acc-af31-d4b27bf7ef7e">8.0</ix:nonFraction>&#160;million in cash. Our preliminary total allocation of purchase consideration included acquired assets of $<ix:nonFraction unitRef="usd" contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNTQ1OA_78e83036-f1e9-4ed4-8e17-f1086d569743">0.4</ix:nonFraction>&#160;million, acquired developed technology intangible asset of $<ix:nonFraction unitRef="usd" contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNTQ5Mw_17b0fee1-4b2d-47ee-b576-f55e3ffebbb2">3.3</ix:nonFraction>&#160;million and goodwill of $<ix:nonFraction unitRef="usd" contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:Goodwill" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNTUxMw_7e58de01-5187-4239-bb4f-7bf9353dd793">5.8</ix:nonFraction>&#160;million less assumed liabilities of $<ix:nonFraction unitRef="usd" contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNjI1Ng_419d1b04-fe30-4f97-92d1-bdd9ae527ad6">1.5</ix:nonFraction>&#160;million. This acquisition did not have a material impact on our condensed consolidated financial statements and is not expected to have a material impact in future periods.</ix:continuation> </span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_58"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 7. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:DebtDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNjU_6bb8b603-cffc-49d3-a26c-e8dd24d384ba" continuedAt="i15c42c11b83c4d17b7497838f47aa00a" escape="true">Convertible Senior Notes</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i15c42c11b83c4d17b7497838f47aa00a" continuedAt="i46c6b888d8594fe5b2bb9a5ccd87c6eb"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, we issued $<ix:nonFraction unitRef="usd" contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="9" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNTY_1ea87bdc-5092-4aa6-a209-a95dfd4eb313">1.0</ix:nonFraction> billion in aggregate principal amount of <ix:nonFraction unitRef="number" contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfOTI_632c0ebf-54fd-4e98-b8ba-8f0953676c67">0</ix:nonFraction>% convertible senior notes due in 2026 (2026 notes). The aggregate principal amount of the 2026 notes includes $<ix:nonFraction unitRef="usd" contextRef="i7f5901cc42994782bbb5a0bee3cfff73_I20200831" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjAy_df21ec64-4991-40ee-b16e-bc72c8f66408">100</ix:nonFraction>&#160;million from the initial purchasers fully exercising their option to purchase additional notes. In March 2019, we issued $<ix:nonFraction unitRef="usd" contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzE4_1766597c-88b8-4d5c-b2bd-d2eeca868f2a">700</ix:nonFraction> million in aggregate principal amount of <ix:nonFraction unitRef="number" contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzU0_7d22a062-633c-4522-911a-d58bb8aad5fb">0.125</ix:nonFraction>%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $<ix:nonFraction unitRef="usd" contextRef="ice301df70ab24ce782093b82b383deac_I20190430" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDg4_a13c837f-cc71-4126-ac5e-26e7eb870476">100</ix:nonFraction> million of additional 2025 notes for aggregate total principal amount of $<ix:nonFraction unitRef="usd" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="-6" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromIssuanceOfDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNTU2_4aa8d45c-43ce-48c8-9d92-492c2fe46c37">800</ix:nonFraction> million. In April 2018, we issued&#160;$<ix:nonFraction unitRef="usd" contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNTg1_d98e6058-eb9d-461b-82a0-1f3316c3d551">345</ix:nonFraction> million in aggregate principal amount of&#160;<ix:nonFraction unitRef="number" contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNjIx_927f5d64-d1b8-4380-ad3c-fc67c453077a">0.25</ix:nonFraction>%&#160;convertible senior notes due in 2023 (2023 notes and together with the 2026 notes and the 2025 notes, the notes). The aggregate principal amount of the 2023 notes includes $<ix:nonFraction unitRef="usd" contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430" decimals="-6" format="ixt:numdotdecimal" name="chgg:DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNzMx_d298181a-0c90-4868-9020-42d0533b743b">45</ix:nonFraction> million&#160;from the </span></div></ix:continuation><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">16</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="i46c6b888d8594fe5b2bb9a5ccd87c6eb" continuedAt="i62c7009328754ea2b186a61903904fd5"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">initial purchasers fully exercising their option to purchase additional notes. The notes were issued in private placements to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933, as amended. </span></div><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfDebtInstrumentsTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNjM_ca1690ad-926f-4f40-82f3-18b938fd6262" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The total net proceeds from the notes are as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:62.350%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.600%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Principal amount</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromIssuanceOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMS0xLTEtMS0w_2041c798-bab6-4c71-90bd-3d6d72a0c642">1,000,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromIssuanceOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMS0zLTEtMS0w_1f18601b-4e4b-44db-8b56-8f7a78db240d">800,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromIssuanceOfDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMS01LTEtMS0w_71e93316-400f-4251-a05a-fc1c0aa841ae">345,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less initial purchasers&#8217; discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831" decimals="-3" format="ixt:numdotdecimal" name="chgg:PaymentsForInitialPurchasersDiscount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMi0xLTEtMS0w_59c25bd9-47eb-4252-aa64-6df4406d16d3">15,000</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="-3" format="ixt:numdotdecimal" name="chgg:PaymentsForInitialPurchasersDiscount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMi0zLTEtMS0w_b4f589a8-fd2f-4898-aac0-3458b99cd9d4">18,998</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430" decimals="-3" format="ixt:numdotdecimal" name="chgg:PaymentsForInitialPurchasersDiscount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMi01LTEtMS0w_a537d4a8-d19d-4dbf-ae73-26a33f9f2ead">8,625</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less other issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831" decimals="-3" name="us-gaap:PaymentsOfDebtIssuanceCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMy0xLTEtMS0w_c213eb76-6b1b-46cf-9056-1d8f962c1b10">904</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="-3" name="us-gaap:PaymentsOfDebtIssuanceCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMy0zLTEtMS0w_a184bda7-e1dc-47c5-971e-e9ad957c044f">822</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430" decimals="-3" name="us-gaap:PaymentsOfDebtIssuanceCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMy01LTEtMS0w_f698c73e-8d31-4a7c-adbd-81bb48652845">757</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net proceeds</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromDebtNetOfIssuanceCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfNC0xLTEtMS0w_9fcc4370-d83e-4803-b16e-4c2ce7eb8abb">984,096</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromDebtNetOfIssuanceCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfNC0zLTEtMS0w_eeb1cc10-65ae-4944-8599-9466c419d8ef">780,180</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromDebtNetOfIssuanceCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfNC01LTEtMS0w_f74ad0cc-50c6-40c9-9cc4-7fa17f99dc06">335,618</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, in connection with our securities repurchase program, we extinguished $<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentRepurchasedFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTI5OA_25ca3883-a1cc-45e4-9144-07ed22975910">100.0</ix:nonFraction>&#160;million aggregate principal amount of the 2025 notes in privately-negotiated transactions for aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1Mzg1Mg_78bf91fd-adfc-4d22-92ca-7591c2c3d8ec">184.9</ix:nonFraction>&#160;million, which was paid in cash. Upon execution, we concluded that the 2025 notes embedded conversion features no longer met the derivative scope exception and, as a result, initially recorded a derivative liability of $<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DerivativeLiabilities" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1MjUzNA_ea5d6a99-53a8-47a2-b69a-5188d50c70eb">176.5</ix:nonFraction>&#160;million, related to the fair value of extinguished 2025 notes. We settled the derivative liability for aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1NDMzMA_78bf91fd-adfc-4d22-92ca-7591c2c3d8ec">184.9</ix:nonFraction>&#160;million resulting in a $<ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-5" sign="-" format="ixt:numdotdecimal" name="us-gaap:GainLossOnSaleOfDerivatives" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1NDM0OQ_fec28981-2408-4a89-85a7-ab8c884456f9">8.4</ix:nonFraction>&#160;million loss on change in fair value. The carrying amount of the 2025 notes subject to the extinguishment was $<ix:nonFraction unitRef="usd" contextRef="ib9b662aece0d46a79988a718b0b99422_I20200831" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:LongTermDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTg4Mg_4bcb9293-b2bb-4616-a1a7-ad95065793d1">98.3</ix:nonFraction>&#160;million resulting in a $<ix:nonFraction unitRef="usd" contextRef="i6574eb7422664c0ea77ac87dd435bf45_D20200801-20200831" decimals="-5" sign="-" format="ixt:numdotdecimal" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTkwMA_1a93e6e9-034f-4a22-bdcc-cdedab3f52e1">78.2</ix:nonFraction>&#160;million loss on early extinguishment of debt.  Additionally, during the three months ended March 31, 2021, we entered into 2025 notes capped call privately-negotiated transactions which terminated capped call transactions underlying <ix:nonFraction unitRef="shares" contextRef="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentConvertibleSharesTerminated" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjA4OA_e0c0f5d1-6e60-40fd-8022-87bf25c4a044">1,939,560</ix:nonFraction> shares of our common stock and received aggregate cash proceeds of $<ix:nonFraction unitRef="usd" contextRef="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE0OA_b7f599f8-e2b3-4dff-8a8f-c50928c23dbc">23.9</ix:nonFraction>&#160;million. Upon execution, we concluded that the capped call transactions no longer met the derivative scope exception and, as a result recorded a derivative liability of $<ix:nonFraction unitRef="usd" contextRef="i9c3b234009514f3898b6d6ff45a59e1d_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DerivativeLiabilities" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1MzIxOA_f2596312-5c06-4ac2-a54d-3c9e2f5414d1">22.6</ix:nonFraction>&#160;million related to the fair value of terminated 2025 notes capped call transactions. We settled the capped call transactions for aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY2NTYxOQ_19dfd30d-246f-4e24-ab73-5a0d8d5c873a">23.9</ix:nonFraction>&#160;million resulting in a $<ix:nonFraction unitRef="usd" contextRef="i34696a2cca2346dca5112aa5dc3cb215_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:GainLossOnSaleOfDerivatives" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1Mzk3OA_7ee126ef-fb90-4367-83c4-f92d5c499608">1.3</ix:nonFraction>&#160;million gain on change in fair value.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The notes are our senior, unsecured obligations and are governed by indenture agreements by and between us and Wells Fargo Bank, National Association, as Trustee (the indentures). The 2026 notes bear <ix:nonFraction unitRef="number" contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjUwNg_c6bd8348-5444-4f7d-a9ea-0139cdaf9290">no</ix:nonFraction> interest and will mature on September&#160;1, 2026, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2025 notes bear interest of <ix:nonFraction unitRef="number" contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjY2Ng_7d22a062-633c-4522-911a-d58bb8aad5fb">0.125</ix:nonFraction>% per year which is payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September&#160;15, 2019. The 2025 notes will mature on March&#160;15, 2025, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2023 notes bear interest of <ix:nonFraction unitRef="number" contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430" decimals="INF" name="us-gaap:DebtInstrumentInterestRateStatedPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjkyMw_927f5d64-d1b8-4380-ad3c-fc67c453077a">0.25</ix:nonFraction>% per year which is payable semi-annually in arrears on May 15 and November 15 of each year, beginning on November&#160;15, 2018. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes, and therefore the 2023 notes continue to be convertible until May 18, 2021. We intend to settle the 2023 notes converted pursuant to our election of our option to redeem such 2023 notes through a combination of cash and shares on May 20, 2021. As a result, we have classified the remaining net carrying amount of 2023 notes as a current liability. Additionally, we entered into 2023 notes capped call privately negotiated transactions underlying the remaining outstanding principal amount of 2023 notes. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Each $1,000 principal amount of the 2026 notes will initially be convertible into 9.2978 shares of our common stock. This is equivalent to an initial conversion price of approximately $<ix:nonFraction unitRef="usdPerShare" contextRef="i11978135b6904d1baefe472298180885_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzMyOQ_07fabccb-f552-4044-9d06-23969acfb275">107.55</ix:nonFraction> per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2025 notes will initially be convertible into 19.3956 shares of our common stock. This is equivalent to an initial conversion price of approximately $<ix:nonFraction unitRef="usdPerShare" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzU4MA_2fd3ff9f-8385-4490-b1a0-08e2fbd63e97">51.56</ix:nonFraction> per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2023 notes will initially be convertible into 37.1051 shares of our common stock. This is equivalent to an initial conversion price of approximately $<ix:nonFraction unitRef="usdPerShare" contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzgzMQ_2242cb27-8284-42f5-9ea9-6a4f1be8d24f">26.95</ix:nonFraction> per share, which is subject to adjustment in certain circumstances.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Prior to the close of business on the business day immediately preceding June&#160;1, 2026 for the 2026 notes, December&#160;15, 2024 for the 2025 notes and February&#160;15, 2023 for the 2023 notes, the notes are convertible at the option of holders only upon satisfaction of the following circumstances:</span></div><div style="padding-left:27pt;text-indent:13.5pt"><span><br/></span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">during any calendar quarter commencing after the calendar quarter ending on December 31, 2020 for the 2026 notes, June 30, 2019 for the 2025 notes, and June&#160;30, 2018 for the 2023 notes, if the last reported sale price of our common stock for at least <ix:nonFraction unitRef="day" contextRef="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430" decimals="INF" name="us-gaap:DebtInstrumentConvertibleThresholdTradingDays" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDQwNw_824046e6-e3fb-491e-af08-310ac1399aa6">20</ix:nonFraction> trading days (whether or not consecutive) during a period of <ix:nonFraction unitRef="day" contextRef="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430" decimals="INF" name="us-gaap:DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDQ3MQ_307037b1-be71-4743-909e-75105d448453">30</ix:nonFraction> consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to <ix:nonFraction unitRef="number" contextRef="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430" decimals="INF" name="us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDYyMA_95d5c148-2d70-4d6f-8503-7ff02fc19185">130</ix:nonFraction>% of the respective conversion price for the notes on each applicable trading day;</span></div></ix:continuation><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">17</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="i62c7009328754ea2b186a61903904fd5" continuedAt="ief5dd1d9b5f24baebb9b4c3d51c3a2b2"><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">during the <ix:nonFraction unitRef="day" contextRef="i10ce0675335840e3b76aa5898c09c6f2_D20180401-20180430" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:DebtInstrumentConvertibleThresholdTradingDays" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDcxNQ_b21cd35a-2629-412b-aa86-fa7a81142b78">five</ix:nonFraction>-business day period after any <ix:nonFraction unitRef="day" contextRef="i10ce0675335840e3b76aa5898c09c6f2_D20180401-20180430" decimals="INF" name="us-gaap:DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDc0OA_f336c5c3-fc76-4c22-b764-02f1b2e920a1">10</ix:nonFraction> consecutive trading day period (the measurement period) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than <ix:nonFraction unitRef="number" contextRef="ic6bc0c34f9ba4685aac266aded393d33_D20180401-20180430" decimals="INF" name="us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDkzMg_8b602064-7284-4c4e-8ce8-3198280af63d">98</ix:nonFraction>% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day;</span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">if we call any or all of the notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or</span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">upon the occurrence of certain specified corporate events described in the indentures.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">On or after June&#160;1, 2026 for the 2026 notes, December&#160;15, 2024 for the 2025 notes and February&#160;15, 2023 for the 2023 notes until the close of business on the second scheduled trading day immediately preceding the respective maturity dates, holders may convert their notes at any time, regardless of the foregoing circumstances.&#160;Upon conversion, the notes may be settled in shares of our common stock, cash or a combination of cash and shares of our common stock, at our election.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If we undergo a fundamental change, as defined in the indentures, prior to the respective maturity dates, subject to certain conditions, holders of the notes may require us to repurchase for cash all or any portion of their notes at a repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, if specific corporate events, described in the indentures, occur prior to the respective maturity dates, we will also increase the conversion rate for a holder who elects to convert their notes in connection with such specified corporate events.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The conditions allowing holders of the 2026 notes to convert were not met and therefore the 2026 notes are not convertible. The first circumstance noted above allowing holders of the 2025 notes to convert was met during the three months ended March 31, 2021, December 31, 2020 and September 30, 2020 and therefore, the 2025 notes were and are convertible starting October 1, 2020 through June 30, 2021. Aside from the extinguishment of $<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentRepurchasedFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY0Nzc0NA_25ca3883-a1cc-45e4-9144-07ed22975910">100.0</ix:nonFraction>&#160;million aggregate principal amount of the 2025 notes discussed above, we received immaterial requests for conversion of the 2025 notes which we settled in cash during the three months ended March 31, 2021 or intend to settle during the three months ending June 30, 2021. The 2023 notes were and are convertible starting April 1, 2019 through September 30, 2019 and from January 1, 2020 through May 18, 2021. During the three months ended March 31, 2021, we received $<ix:nonFraction unitRef="usd" contextRef="iebd16c25b055465eb3a3ee69e374cdf6_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtConversionOriginalDebtAmount1" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1MzgzNg_0faa89c3-84d6-43e6-b12b-a8c81387a860">24.7</ix:nonFraction>&#160;million aggregate principal amount of requests for conversion of the 2023 notes. $<ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtConversionOriginalDebtAmount1" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTM0NA_ea75eaf1-a37b-4e0d-b7e3-1964992ee9f0">4.7</ix:nonFraction>&#160;million aggregate principal amount was settled during the three months ended March 31, 2021 for aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="chgg:DebtInstrumentDebtConversionConsideration" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTQwMw_09f32a42-83cc-4d59-954b-a73689be9207">15.9</ix:nonFraction>&#160;million, consisting of $<ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTE2MA_cd01c7d7-d19a-46ad-ac49-a1f9a178720f">4.7</ix:nonFraction>&#160;million in cash and <ix:nonFraction unitRef="shares" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentDebtConversionEquityInstrumentsIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTE3NA_9239f021-f706-4d53-8a45-0f21f13ac3ca">126,003</ix:nonFraction> shares of our common stock with a value of $<ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="chgg:DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTIwMw_f8430572-d178-4437-8f06-cccc78ea5b83">11.2</ix:nonFraction>&#160;million. $<ix:nonFraction unitRef="usd" contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtConversionOriginalDebtAmount1" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTQ1MQ_8372f9aa-a2ef-4a40-b042-0ffc40a0abbb">20.0</ix:nonFraction>&#160;million aggregate principal amount was settled in April 2021 for aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430" decimals="-5" format="ixt:numdotdecimal" name="chgg:DebtInstrumentDebtConversionConsideration" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTY5MQ_9fcf173c-25d6-47e8-9a4c-27182a43549b">67.1</ix:nonFraction>&#160;million, consisting of $<ix:nonFraction unitRef="usd" contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTY2Nw_eb4702ac-277f-473a-8186-79c44dd06718">20.0</ix:nonFraction>&#160;million in cash and <ix:nonFraction unitRef="shares" contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentDebtConversionEquityInstrumentsIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTY4Mg_b3167628-8d72-4443-92c6-39286be29ee5">529,611</ix:nonFraction> shares of our common stock with a value of $<ix:nonFraction unitRef="usd" contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430" decimals="-5" format="ixt:numdotdecimal" name="chgg:DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTcwNg_4d279aa6-2184-4bb4-bd85-3d9724185f6b">47.1</ix:nonFraction>&#160;million. During the three months ended March 31, 2021, we terminated 2023 notes capped call transactions underlying <ix:nonFraction unitRef="shares" contextRef="ifaff83de79ca489c9caeb776fad6cc1a_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentConvertibleSharesTerminated" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY2MjUwOA_a1afa6eb-b935-465c-bc7f-2e8d99836611">86,826</ix:nonFraction> shares of our common stock and received cash proceeds of $<ix:nonFraction unitRef="usd" contextRef="ifaff83de79ca489c9caeb776fad6cc1a_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="chgg:ProceedsFromCappedCall" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY2MjYxMA_2b97adb5-2cd7-4e68-af8a-615a0bddb635">0.9</ix:nonFraction>&#160;million. During the year ended December 31, 2020, in connection with our issuance of the 2026 notes, we exchanged $<ix:nonFraction unitRef="usd" contextRef="ic2d348238f7a4e35a7a63b88419ea1b1_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentRepurchasedFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTMxOA_377c7e9d-1622-401a-a5ed-6e06d5025244">172.0</ix:nonFraction>&#160;million aggregate principal amount of the 2023 notes in privately-negotiated transactions for an aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="chgg:DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTM1MA_c655b39c-c57c-4fa2-89bf-08441707631d">501.7</ix:nonFraction>&#160;million, consisting of $<ix:nonFraction unitRef="usd" contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTMzNA_c642a14c-95c5-4068-86ff-a4ae597e8bcc">174.6</ix:nonFraction>&#160;million in cash and <ix:nonFraction unitRef="shares" contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DebtConversionConvertedInstrumentSharesIssued1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTM4Mg_ae9fc18c-e36b-49fe-99e2-58f261d05c12">4,182,320</ix:nonFraction> shares of our common stock with a value of $<ix:nonFraction unitRef="usd" contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="chgg:DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTM2Ng_c679c8c2-789a-409b-bda7-b29db6723fdf">327.1</ix:nonFraction>&#160;million.</span></div><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfDebtTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNTQ_c5ffbceb-6225-483e-ace9-93f01a90d05e" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The net carrying amount of the notes is as follows (in thousands): </span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:25.215%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.384%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.606%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(2)</span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Principal</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i11978135b6904d1baefe472298180885_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi0xLTEtMS0w_336d47f4-cc00-4be4-8afe-e6e0662e8065">1,000,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi0zLTEtMS0w_fc4e4590-b69e-44ec-9526-a009ff50e2a9">699,995</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi01LTEtMS0w_59e26fff-4ae3-4352-a408-5ed7b6b21ca3">110,896</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi03LTEtMS04NTEw_284fb023-a60c-488f-8b4a-f9a6817ba0fe">1,000,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi03LTEtMS0w_0c44f711-52fe-4ebc-8276-b0aef2a6a130">800,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentFaceAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi05LTEtMS0w_b2033765-d238-41a3-919f-b97c38e223b0">115,576</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Unamortized debt discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i11978135b6904d1baefe472298180885_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy0xLTEtMS0w_7cbb2803-8034-4e9f-baa4-411a28fe21ac">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy0zLTEtMS0w_237e5c68-6120-4fab-b34a-364eff2f5c4b">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy01LTEtMS0w_11d9dfaf-2641-430a-ac92-db2f7cc3d0f5">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy03LTEtMS04NTEw_7cb5375e-b063-4d33-81f7-56e17cbf1e87">226,732</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy03LTEtMS0w_fee7ed31-f483-4d36-a534-2645c3dcbfec">149,138</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy05LTEtMS0w_80a17609-988e-411f-917e-4051f93a5b33">9,953</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Unamortized issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i11978135b6904d1baefe472298180885_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC0xLTEtMS0w_b0d71d94-8d16-479a-b478-e719618f25e6">14,294</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC0zLTEtMS0w_9a1c7a0b-6092-4cfe-a1a0-0b234ffd3ffc">11,755</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC01LTEtMS0w_29cb0293-10b7-41e1-9f73-7f6730b647ed">1,402</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC03LTEtMS04NTEw_83102051-e7fe-401c-9c45-6900b5201ecc">11,338</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC03LTEtMS0w_9d368f14-3eda-4f11-8e95-8687db0fdbc6">10,248</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="usd" contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredFinanceCostsNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC05LTEtMS0w_7c288f52-afe5-4a36-9c74-9a9cddedc68b">1,245</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net carrying amount</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iddbcfc913c1248099d6e071eab53ebd8_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS0xLTEtMS0w_ec07a13c-a6ad-46ef-9211-38f858fd89ac">985,706</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i3a5ce7f3425745f381b986d2dcc4e04e_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS0zLTEtMS0w_2406b6f3-3194-4545-83ff-a162a93899bf">688,240</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i262c95c8588a42f3902ea5c2cd1a24c0_I20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS01LTEtMS0w_3259a95d-5bb4-4432-9b0b-1ffaa4126a3e">109,494</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iac7af935c18447548371b256fa5adc25_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS03LTEtMS04NTEw_6bb22b05-9c98-4a90-b021-122eace3e4e0">761,930</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i707cf4308ed9453cb40bc27962b1a349_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS03LTEtMS0w_da14681e-8cf8-4cf0-b712-aa13b01fda0b">640,614</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i756b589cc250419ea816398952a55f38_I20201231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LongTermDebtFairValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS05LTEtMS0w_ccb62fd2-a50a-4425-b427-d9abb0f7034a">104,378</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, during the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes and we have classified the remaining net carrying amount of 2023 notes as a current liability.</span></div></ix:nonNumeric></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">18</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ief5dd1d9b5f24baebb9b4c3d51c3a2b2"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="chgg:ScheduleOfInterestExpenseRecognizedTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNjk_ddee25f1-b044-41d5-b6e6-67c2354560dc" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth the total interest expense recognized related to the notes (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:37.496%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.604%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="27" style="border-bottom:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="15" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Contractual interest expense</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:InterestExpenseDebtExcludingAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy0xLTEtMS0w_a8f8b821-d648-48e8-8447-ce79e6d08b41">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-3" name="us-gaap:InterestExpenseDebtExcludingAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy0zLTEtMS0w_d256d491-9846-4d36-963d-50b77ab73516">237</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-3" name="us-gaap:InterestExpenseDebtExcludingAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy01LTEtMS0w_346f3ba8-dec8-4712-bf25-8f4f1382caf1">66</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331" decimals="-3" name="us-gaap:InterestExpenseDebtExcludingAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy03LTEtMS0w_3cc826bc-29cf-4edf-8376-1dc43cdcd25f">249</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331" decimals="-3" name="us-gaap:InterestExpenseDebtExcludingAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy05LTEtMS0w_f8a660e1-e61b-446f-aa83-4d03e7369c36">215</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of debt discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AmortizationOfDebtDiscountPremium" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC0xLTEtMS0w_dfb36922-2f10-4309-9569-f8389eb1e0c2">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AmortizationOfDebtDiscountPremium" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC0zLTEtMS0w_641f92af-6c84-4596-ba37-8bac161bd6fe">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-3" format="ixt:zerodash" name="us-gaap:AmortizationOfDebtDiscountPremium" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC01LTEtMS0w_6db293b0-3921-46c7-8d95-7fadf43390e3">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AmortizationOfDebtDiscountPremium" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC03LTEtMS0w_9dbaff71-ab96-4ce8-9453-b6168818c6f1">8,841</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AmortizationOfDebtDiscountPremium" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC05LTEtMS0w_7eeb8c33-2bab-4bb1-b939-d28f48cb0bf9">3,125</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331" decimals="-3" name="us-gaap:AmortizationOfFinancingCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS0xLTEtMS0w_2e221ef5-bd7a-4883-ba3b-67b063084766">650</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-3" name="us-gaap:AmortizationOfFinancingCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS0zLTEtMS0w_7269571e-fcfd-4fb0-9464-04ba5b741b74">808</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-3" name="us-gaap:AmortizationOfFinancingCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS01LTEtMS0w_c7cf559f-4e43-4036-8b25-e3a7b818c7fd">168</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331" decimals="-3" name="us-gaap:AmortizationOfFinancingCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS03LTEtMS0w_23c786cf-f6b4-419c-a8a3-3f2ead19cd5b">608</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331" decimals="-3" name="us-gaap:AmortizationOfFinancingCosts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS05LTEtMS0w_ae4ba563-d4e4-45de-9220-e31636ce0969">372</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total interest expense</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331" decimals="-3" name="us-gaap:InterestExpenseDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi0xLTEtMS0w_8b158907-33c2-4267-80f8-238069788107">650</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InterestExpenseDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi0zLTEtMS0w_6b1d4c44-db54-4694-ad22-d00e93dde541">1,045</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331" decimals="-3" name="us-gaap:InterestExpenseDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi01LTEtMS0w_3eef37ec-5bec-4d14-9307-31d73089af21">234</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InterestExpenseDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi03LTEtMS0w_554e2f84-2ee0-4c63-84ca-01db7a19c22a">9,698</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InterestExpenseDebt" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi05LTEtMS0w_c6cf391f-c56f-44da-b8b9-c58e5111de94">3,712</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div></ix:nonNumeric><div style="text-align:center"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Capped Call Transactions</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Concurrently with the offering of the 2026 notes, 2025 notes and 2023 notes, we used $<ix:nonFraction unitRef="usd" contextRef="if40b6a70d0ee4fb2bc84c7a1eca79711_D20200801-20200831" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromDebtNetOfIssuanceCosts" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA2NDQ_860b15aa-008e-4466-a705-7fc18032f0bc">103.4</ix:nonFraction> million, $<ix:nonFraction unitRef="usd" contextRef="ib1eb4154732349119fdba5d7d7c90012_D20190401-20190430" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromDebtNetOfIssuanceCosts" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA2NDg_5ede52a0-faf1-490c-a630-f37de6c3a56b">97.2</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="idd446d0d3ca14b7bb7dc83fe63327303_D20180401-20180430" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ProceedsFromDebtNetOfIssuanceCosts" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA2NTU_ca7c617e-98ec-4503-97b6-4497bb63cafc">39.2</ix:nonFraction> million, respectively, of the net proceeds to enter into privately negotiated capped call transactions which are expected to generally reduce or offset potential dilution to holders of our common stock upon conversion of the notes and/or offset the potential cash payments we would be required to make in excess of the principal amount of any converted notes. The capped call transactions automatically exercise upon conversion of the notes and, and as of March&#160;31, 2021, cover&#160;<ix:nonFraction unitRef="shares" contextRef="id8786dbc8fd440b79f10ef7c37a3f18c_I20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentConvertibleShares" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTExMDE_2678b374-fd18-4c24-a97b-0238e525764b">9,297,800</ix:nonFraction>, <ix:nonFraction unitRef="shares" contextRef="i9c3b234009514f3898b6d6ff45a59e1d_I20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentConvertibleShares" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTExMDU_c8626b7f-0b90-4f10-850a-212e44bccbf4">13,576,823</ix:nonFraction> and <ix:nonFraction unitRef="shares" contextRef="i58eef5d33dcc48688b91d17c94e15621_I20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:DebtInstrumentConvertibleShares" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTExMTI_e3a978f4-79e8-4892-ad8a-6da0541c3fda">4,201,633</ix:nonFraction>&#160;shares of our common stock for the 2026 notes, 2025 notes and 2023 notes, respectively, and are intended to effectively increase the overall conversion price from&#160;$<ix:nonFraction unitRef="usdPerShare" contextRef="i11978135b6904d1baefe472298180885_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEyNzg_07fabccb-f552-4044-9d06-23969acfb275">107.55</ix:nonFraction> to $<ix:nonFraction unitRef="usdPerShare" contextRef="id8786dbc8fd440b79f10ef7c37a3f18c_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEyODQ_dd128716-9437-49c5-b572-921685ff39f9">156.44</ix:nonFraction> per share for the 2026 notes, $<ix:nonFraction unitRef="usdPerShare" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzMTc_2fd3ff9f-8385-4490-b1a0-08e2fbd63e97">51.56</ix:nonFraction> to $<ix:nonFraction unitRef="usdPerShare" contextRef="i9c3b234009514f3898b6d6ff45a59e1d_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzMjM_62463b6b-319f-4881-8079-dccc0a432a6d">79.32</ix:nonFraction> per share for the 2025 notes and $<ix:nonFraction unitRef="usdPerShare" contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzNTk_2242cb27-8284-42f5-9ea9-6a4f1be8d24f">26.95</ix:nonFraction>&#160;to&#160;$<ix:nonFraction unitRef="usdPerShare" contextRef="i58eef5d33dcc48688b91d17c94e15621_I20210331" decimals="2" name="us-gaap:DebtInstrumentConvertibleConversionPrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzNjU_c5092c8b-445c-4920-89a0-ca600f3dd418">40.68</ix:nonFraction>&#160;per share for the 2023 notes. The effective increase in conversion price as a result of the capped call transactions serves to reduce potential dilution to holders of our common stock and/or offset the cash payments we are required to make in excess of the principal amount of any converted notes. As these transactions meet certain accounting criteria, they are recorded in stockholders&#8217; equity as a reduction of additional paid-in capital on our condensed consolidated balance sheets and are not accounted for as derivatives. The fair value of the capped call instrument is not remeasured each reporting period. The cost of the capped call is not expected to be deductible for tax purposes.</span></div></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_67"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 8. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:CommitmentsAndContingenciesDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfODY4_dbfbe146-cc81-4ccb-adfd-a60a3447385b" continuedAt="i481e3fdea17d42fa82332cd765f9bdb5" escape="true">Commitments and Contingencies</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i481e3fdea17d42fa82332cd765f9bdb5" continuedAt="i4b0b2492c9af4037b5d69836e8b54078"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">From time to time, third parties may assert patent infringement claims against us in the form of letters, litigation, or other forms of communication. In addition, we may from time to time be subject to other legal proceedings and claims in the ordinary course of business, including claims of alleged infringement of trademarks, copyrights, and other intellectual property rights; employment claims; and general contract or other claims. We may also, from time to time, be subject to various legal or government claims, disputes, or investigations. Such matters may include, but not be limited to, claims, disputes, or investigations related to warranty, refund, breach of contract, employment, intellectual property, government regulation, or compliance or other matters.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 1, 2020, we received notice that a class action lawsuit was filed against Chegg in New York alleging violations of the American with Disabilities Act. The claim asserted that one of Chegg&#8217;s websites is not compatible with software used by vision-impaired individuals. During the three months ended March 31, 2021, we settled this matter for an immaterial amount. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On August 18, 2020, we received notice that a class action lawsuit was filed against Chegg in California alleging violations of the Unruh Civil Rights Act. The claim asserted that one of Chegg&#8217;s websites is not compatible with software used by vision-impaired individuals. During the three months ended March 31, 2021, we settled this matter for an immaterial amount.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On July 21, 2020, VitalSource Technologies LLC (VST), which is wholly owned by Ingram Industries Inc., filed a complaint against Chegg alleging that Chegg breached its contract with VST involving the development of an eTextbook reader and eTextbook reader platform. The suit sought  uncertain damages, but the complaint alleged that they exceeded $<ix:nonFraction unitRef="usd" contextRef="i56c8d4a014af47a0aae4b5b8cec5e57e_I20200721" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LossContingencyEstimateOfPossibleLoss" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTYzNjA1MA_94a50b94-0ee0-48e1-af21-4e26a1ab3007">75,000</ix:nonFraction>. During the three months ended March 31, 2021, we recorded an immaterial loss contingency accrual and subsequently settled this matter in April 2021. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On June 18, 2020, we received a Civil Investigative Demand (CID) from the Federal Trade Commission (FTC) to determine whether we may have violated Section 5 of the FTC Act or the Children's Online Privacy Protection Act (COPPA), as they relate to deceptive or unfair acts or practices related to consumer privacy and/or data security. Pursuant to the CID, the FTC has requested responses to interrogatories and the production of documents pertaining to data breach incidents and our </span></div></ix:continuation><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">19</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="i4b0b2492c9af4037b5d69836e8b54078" continuedAt="ic26591840db34343b7b831634a40573c"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">data security and privacy practices generally. Efforts are currently underway to collect the documents and information requested after reaching an agreement with the FTC on the order and timing of our responses.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On May 12, 2020, we received notice that <ix:nonFraction unitRef="numberofplaintiffs" contextRef="i41662b440e844378b83b68a464408983_D20200512-20200512" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:LossContingencyNewClaimsFiledNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTE5Nw_aea98803-2fd5-4285-bb2b-75ae6c894d6e">15,107</ix:nonFraction> arbitration demands were filed against us by individuals represented by the same legal counsel, each alleging to have suffered more than $<ix:nonFraction unitRef="usd" contextRef="i41662b440e844378b83b68a464408983_D20200512-20200512" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LossContingencyDamagesSoughtValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTIxMw_d3afa248-350f-48c9-9e22-9e2954ea8e52">25,000</ix:nonFraction> in damages as a result of the 2018 Data Incident. On July 1, 2020, an additional <ix:nonFraction unitRef="numberofplaintiffs" contextRef="ic9f1749896224651875bc489f30602b9_D20200701-20200701" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:LossContingencyNewClaimsFiledNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTIyOA_897325bd-40bb-4d20-9089-bc5d6c2be98c">1,007</ix:nonFraction> arbitration demands were filed by the same counsel. On August 12, 2020, an additional <ix:nonFraction unitRef="numberofplaintiffs" contextRef="iffcce83a3e0a48929e979c62d5fe0feb_D20200812-20200812" decimals="INF" name="us-gaap:LossContingencyNewClaimsFiledNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTIzOQ_1b0241c0-cf86-47dc-a5c2-df884164d85c">577</ix:nonFraction> arbitration demands were filed by the same counsel; cases have been filed by the same counsel in Maryland and California.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We dispute that these claimants have a valid basis for seeking arbitration, assert that they have acted in bad faith and are working with the Maryland and California courts and plaintiffs&#8217; counsel on resolution of these claims. During the three months ended March 31, 2021, we recorded a loss contingency accrual and a corresponding insurance loss recovery, the net impact of which did not materially impact our condensed consolidated statements of operations. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On November 5, 2018, NetSoc, LLC (NetSoc) filed a complaint against us in the U.S. District Court for the Southern District of New York (SDNY) for patent infringement alleging that the Chegg Tutors service infringes U.S. Patent No. 9.978,107 and seeking unspecified compensatory damages. A responsive pleading was filed on February 19, 2019. On January 13, 2020, the SDNY issued an order dismissing the case as to Chegg. On January 30, 2020, NetSoc appealed the dismissal. On April 21, 2020, the SDNY granted Chegg's motion to hold NetSoc's appeal in abeyance pending the outcome of an appeal in the litigation above. On December 2, 2020, the U.S. Patent and Trademark Office determined that the patent is invalid based on two Inter Partes Review (IPR) proceedings and on January 4, 2021, NetSoc filed a notice of appeal appealing the IPR decision.</span></div></ix:continuation><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:continuation id="ic26591840db34343b7b831634a40573c">Aside from the loss contingency accruals for the VST and 2018 Data Incident matters, we have not recorded any additional amounts related to the above matters as we do not believe that a loss is probable in these remaining matters. We are not aware of any other pending legal matters or claims, individually or in the aggregate, that are expected to have a material adverse impact on our condensed consolidated financial position, results of operations, or cash flows. However, our analysis of whether a claim will proceed to litigation cannot be predicted with certainty, nor can the results of litigation be predicted with certainty. Nevertheless, defending any of these actions, regardless of the outcome, may be costly, time consuming, distract management personnel and have a negative effect on our business. An adverse outcome in any of these actions, including a judgment or settlement, may cause a material adverse effect on our future business, operating results and/or financial condition.</ix:continuation> </span></div><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_70"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 9. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="chgg:GuaranteesAndIndemnificationsTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83MC9mcmFnOjI1MTFlOWY1Yjk1ZDRjOTU5NjZkZjliMjBlZmMxYWZiL3RleHRyZWdpb246MjUxMWU5ZjViOTVkNGM5NTk2NmRmOWIyMGVmYzFhZmJfOTUw_6deb599a-f608-47b3-8fd0-901d044c121f" continuedAt="i57bfa5a2731749ff90d068ad214399d4" escape="true">Guarantees and Indemnifications</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i57bfa5a2731749ff90d068ad214399d4"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have agreed to indemnify our directors and officers for certain events or occurrences, subject to certain limits, while such persons are or were serving at our request in such capacity. We may terminate the indemnification agreements with these persons upon termination of employment, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination. We have a directors&#8217; and officers&#8217; insurance policy that limits our potential exposure up to the limits of our insurance coverage. In addition, we also have other indemnification agreements with various vendors against certain claims, liabilities, losses, and damages. The maximum amount of potential future indemnification is unlimited.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We believe the fair value of these indemnification agreements is minimal. We have not recorded any liabilities for these agreements as of March&#160;31, 2021.</span></div></ix:continuation><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_73"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 10. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE4Mw_6744e99e-9860-4983-8300-0b0a8ad276cc" continuedAt="i3ecba95e2d294bf88b050f8c73b95c39" escape="true">Stockholders' Equity</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i3ecba95e2d294bf88b050f8c73b95c39" continuedAt="ia2ab0a71b0d247729e8ff703ad42036e"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Equity Offering</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In February 2021, we entered into an underwriting agreement pursuant to which we agreed to issue and sell <ix:nonFraction unitRef="shares" contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzA3MQ_01f759f6-894e-4b47-b276-f0b510398cc6">10,974,600</ix:nonFraction> shares of our common stock at a public offering price of $<ix:nonFraction unitRef="usdPerShare" contextRef="ieace5e8c8a9b4b789b505aefcd900af2_I20210228" decimals="2" name="us-gaap:SaleOfStockPricePerShare" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzEzMg_90f6401e-1a55-4b78-9be8-f5ed833b6723">102.00</ix:nonFraction> per share generating aggregate net proceeds of $<ix:nonFraction unitRef="usd" contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:SaleOfStockConsiderationReceivedOnTransaction" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQwOA_c7e20020-c38b-412b-965d-34d9d9b959ba">1,091.5</ix:nonFraction>&#160;million, after deducting underwriting discounts and commissions of $<ix:nonFraction unitRef="usd" contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228" decimals="-5" format="ixt:numdotdecimal" name="chgg:SaleOfStockUnderwritingDiscountsAndCommissions" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzI0Ng_d80a02d4-fd00-4eb6-9958-912fc623d63c">26.9</ix:nonFraction>&#160;million and offering expenses of $<ix:nonFraction unitRef="usd" contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228" decimals="-5" format="ixt:numdotdecimal" name="chgg:SaleOfStockOfferingExpenses" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzI3NQ_00d9a511-18fa-496b-8d1f-6fab41796ce6">1.1</ix:nonFraction>&#160;million.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Securities Repurchase Program</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In June 2020, our board of directors approved a securities repurchase program authorizing our repurchase of up to $<ix:nonFraction unitRef="usd" contextRef="i4d2401de5ba546d390f5e9974709da7f_I20200630" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:StockRepurchaseProgramAuthorizedAmount1" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjA3_72060fb2-f263-4fba-9392-068a54cbfc05">500.0</ix:nonFraction>&#160;million of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements. The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors. During the three months ended March 31, 2021, we repurchased $<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentRepurchasedFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzNTI3NA_25ca3883-a1cc-45e4-9144-07ed22975910">100.0</ix:nonFraction>&#160;million of aggregate principal amount of the 2025 notes in privately-negotiated transactions for an </span></div></ix:continuation><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">20</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ia2ab0a71b0d247729e8ff703ad42036e" continuedAt="ia98688fe005046dcbb854a13fe7d359b"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">aggregate consideration of $<ix:nonFraction unitRef="usd" contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RepaymentsOfConvertibleDebt" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzNTI2MA_78bf91fd-adfc-4d22-92ca-7591c2c3d8ec">184.9</ix:nonFraction>&#160;million. $<ix:nonFraction unitRef="usd" contextRef="i12c51d956373407db8eea0de5a215709_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzNTI2Mw_7889f18e-8070-46bf-b414-291bbc4f7392">165.5</ix:nonFraction>&#160;million remains under the repurchase program, which will end on December 31, 2021.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Share-based Compensation Expense</span></div><div style="text-indent:27pt"><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE5Ng_72f7f4d0-d7ce-4473-b43b-4f2eb6c8d875" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cost of revenues</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i63edd251631c4b27981b515396ee4012_D20210101-20210331" decimals="-3" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMi0xLTEtMS0w_7d6909bd-73ae-4f1f-b5b7-15c6c2ebc92a">362</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="idba69f9a905a4c27be84a508ebace169_D20200101-20200331" decimals="-3" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMi0zLTEtMS0w_404c9a27-eb0c-48b6-b0ce-87cbc0b06cc7">169</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Research and development</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iba7cf555c40c42d5a91d5737fa16046c_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMy0xLTEtMS0w_86389647-26ea-427b-b509-dc2d6efc197b">7,959</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="id22893a050e04088a0e4abee10ef4f5a_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMy0zLTEtMS0w_ad653cdc-acbf-453c-9eb5-8f0a68d2f02e">6,991</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Sales and marketing</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i92ada1088fd34a1e9215923abc72ffef_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNC0xLTEtMS0w_8ce877ba-24e5-4230-af63-16c2c8c5cb3b">2,919</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="idf89328053f443069bfc56c2b10e490b_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNC0zLTEtMS0w_3c38613d-3f3f-4554-8fbf-8b2291b474f6">2,186</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General and administrative</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="iff0c34d13b0a4cc0929ae2febc24d361_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNS0xLTEtMS0w_bc81c5a5-7158-4f19-a6f8-492f8475726c">11,860</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ifde7b8c3a47b413a93d130cc884255b9_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNS0zLTEtMS0w_dec11d07-ac2f-4c1b-b719-a99ff6ff611d">8,988</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total share-based compensation expense</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNi0xLTEtMS0w_fc17d5db-63d1-482b-90b6-6f1844f07040">23,100</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usd" contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNi0zLTEtMS0w_5818ce8a-e2d8-4dde-88c7-9e9886653f97">18,334</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, we capitalized $<ix:nonFraction unitRef="usd" contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY1NjcwMw_37adc496-5267-4f70-9158-4654913c752b">0.5</ix:nonFraction>&#160;million of share-based compensation expense.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">2021 PSU Grants with Market-Based Conditions</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2021, we granted PSUs under the 2013 Equity Incentive Plan (the 2013 Plan) with market-based conditions to certain of our key employees. The number of shares of our common stock that may be issued to settle these PSUs range from <ix:nonFraction unitRef="number" contextRef="i86b8ea162c34436688b9d0c26384fb42_I20210331" decimals="INF" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0OTI3MQ_1e00275c-97a9-42d4-b3fc-3ab570d65bae">50</ix:nonFraction>% at the threshold level to <ix:nonFraction unitRef="number" contextRef="i7f3824120c674d758a0e7546dab59828_I20210331" decimals="INF" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0OTI3OA_bfe50551-50a6-43b9-8b9f-f11c86a66b26">150</ix:nonFraction>% at the maximum level of the <ix:nonFraction unitRef="number" contextRef="if1ccb61b2eca47959ec3f2b1c83d2516_I20210331" decimals="INF" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MTE1OA_5334ce00-58f5-42a3-b952-2a489cf8f410">100</ix:nonFraction>% target level of the award depending on achieving a maximum average market value of the per share price of our common stock, for a period of <ix:nonNumeric contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" format="ixt-sec:durday" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQ1NA_3f2a7835-ea18-413b-aa38-b10ef20aa96a">60</ix:nonNumeric> consecutive trading days, over a <ix:nonNumeric contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" format="ixt-sec:durwordsen" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzM5OQ_73c52258-43e3-46c9-81c5-23b4963f68b3">three-year</ix:nonNumeric> performance period ending on the third anniversary of the date of grant. No payout will be made for performance below the <ix:nonFraction unitRef="number" contextRef="i86b8ea162c34436688b9d0c26384fb42_I20210331" decimals="INF" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDQwOQ_1e00275c-97a9-42d4-b3fc-3ab570d65bae">50</ix:nonFraction>% threshold level. The market value of the per share price of our common stock must reach $<ix:nonFraction unitRef="usdPerShare" contextRef="i3e91538dab90434a8c28609c79636341_I20210331" decimals="2" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDMyOA_edae8291-022e-4799-9455-0502a4cbc16e">123.81</ix:nonFraction>, $<ix:nonFraction unitRef="usdPerShare" contextRef="i805c55cd19e7402b8cc3365e520eebac_I20210331" decimals="2" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDMzNw_93ff8020-364b-41d1-b9a4-721d0ff095ab">148.58</ix:nonFraction>, or $<ix:nonFraction unitRef="usdPerShare" contextRef="i1d610928a8304be08320eefbc0bc522e_I20210331" decimals="2" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDM1MQ_eacf4a0b-a116-4917-a65c-3acc36af1dd0">173.34</ix:nonFraction> at the threshold, target, or maximum levels, respectively, for achievement of the award, which could result in issuance of <ix:nonFraction unitRef="shares" contextRef="i3e91538dab90434a8c28609c79636341_I20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0ODk0OA_2bc123d7-ccbf-4972-9163-b4fd86f3f7c8">244,086</ix:nonFraction>, <ix:nonFraction unitRef="shares" contextRef="i805c55cd19e7402b8cc3365e520eebac_I20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0ODkzOQ_962f2c44-97f5-4458-b6ce-17038a08826f">488,173</ix:nonFraction>, or <ix:nonFraction unitRef="shares" contextRef="i1d610928a8304be08320eefbc0bc522e_I20210331" decimals="INF" format="ixt:numdotdecimal" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzQwOQ_202a81b6-2f62-4234-8589-3e105234e406">732,260</ix:nonFraction> shares of our common stock at each respective payout level. These PSUs will vest over a <ix:nonNumeric contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzM5NA_f9bc7da3-56a7-473e-9288-65ec683f39ba">four-year</ix:nonNumeric> period, with the initial vesting of <ix:nonFraction unitRef="number" contextRef="ide9e54322d4f4a91a9002245f04ab235_D20240301-20240331" decimals="INF" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0ODg5NA_71a569a2-4774-4342-b3cc-6fa292de8f9d">50</ix:nonFraction>% of the award occurring in March 2024. The number of PSUs granted totaled <ix:nonFraction unitRef="shares" contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjY2Nw_523db5aa-4313-4836-b874-a79d046b2d54">732,260</ix:nonFraction> shares, which represents the maximum number of shares, and had a grant date fair value of $<ix:nonFraction unitRef="usdPerShare" contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjYxMA_dd7c0906-d442-4838-ac87-82953e5f0d5e">68.55</ix:nonFraction> per share, determined under the Monte Carlo simulation approach and described further below. As of March&#160;31, 2021, the market-based conditions have not been met.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fair Value of PSUs with Market-Based Conditions</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">PSUs with market-based conditions are converted into shares of our common stock upon vesting on a <ix:nonFraction unitRef="number" contextRef="if1ccb61b2eca47959ec3f2b1c83d2516_I20210331" decimals="INF" format="ixt-sec:numwordsen" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQ2Mg_307c249a-0bc4-401d-a7cb-aca5d0350530">one</ix:nonFraction>-for-one basis. Vesting is subject to the achievement of certain share price targets and the employee's continuing service to us. If the share price targets are achieved, the awards vest over a <ix:nonNumeric contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzM5Mw_36d25447-dbfd-4066-b89e-3d538864eed8">four-year</ix:nonNumeric> period. We estimate the fair value of the PSUs using a Monte Carlo simulation approach, which utilizes the fair value of our common stock based on active market and requires input on the following subjective assumptions:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Expected Term</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The expected term for the awards is the performance period of <ix:nonNumeric contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" format="ixt-sec:durwordsen" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzOTA2NA_2f3db94a-160f-4d34-a175-d76c0130273c">three years</ix:nonNumeric>.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Expected Volatility</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The expected volatility is based on the historical average volatility of our stock price over the expected term.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Expected Dividends</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The dividend assumption is based on our historical experience. To date we have not paid any dividends on our common stock.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Risk-Free Interest Rate</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The risk-free interest rate used in the valuation method is the implied yield currently available on the U.S. treasury zero-coupon issues, with a remaining term equal to the expected term.</span></div></ix:continuation><div style="padding-left:36pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">21</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ia98688fe005046dcbb854a13fe7d359b"><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQ3Mg_1fd5d85f-b5da-4846-9b24-7528a84e55d9" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the key assumptions used to determine the fair value of the awards:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:84.280%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:1.0%"></td><td style="width:13.520%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31, 2021</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expected term (years)</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfMS01LTEtMS0zNDMw_2432838a-1cba-482e-b490-8d2a6ee49bfe">3.00</ix:nonNumeric></span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expected volatility</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" decimals="INF" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfMi01LTEtMS0zNDMw_5ede89a5-8d44-473c-a811-3160b0a25892">49.04</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Dividend yield</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" decimals="INF" format="ixt:zerodash" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfMy01LTEtMS0zNDMw_bb758f39-d48f-476c-b6e8-14351091ad30">&#8212;</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Risk-free interest rate</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="number" contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331" decimals="INF" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfNC01LTEtMS0zNDMw_ee717397-e6cb-4d7e-b668-7f6ff2059fff">0.27</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div></ix:nonNumeric><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">2021 PSU Grants with Financial and Strategic Performance Targets</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2021, we granted PSUs under the 2013 Plan to certain of our key executives. These PSUs entitle the executives to receive a certain number of shares of our common stock based on our satisfaction of certain financial and strategic performance targets during 2021. These PSUs will vest over a <ix:nonNumeric contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzQ1OA_9d12a72f-6a96-4818-821e-ff1ed8f38548">three-year</ix:nonNumeric> period, with the initial vesting occurring in March 2022. The number of shares underlying these March 2021 PSUs granted totaled <ix:nonFraction unitRef="shares" contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjQyOQ_be004c2b-c692-479c-a7b4-284c21298eae">278,644</ix:nonFraction> shares and had a grant date fair value of $<ix:nonFraction unitRef="usdPerShare" contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjQyMQ_ae27d1ea-1a7f-446e-955f-3e7267682dc2">99.05</ix:nonFraction> per share. As of March&#160;31, 2021, the performance-based milestones are expected to be met at the maximum threshold, resulting in full achievement of these PSUs.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fair Value of PSUs with Financial and Strategic Performance Targets and RSUs</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">PSUs with financial and strategic performance targets and RSUs are converted into shares of our common stock upon vesting on a <ix:nonFraction unitRef="number" contextRef="i4c95bfb512cd4083a532fb0833f49a47_I20210331" decimals="INF" format="ixt-sec:numwordsen" name="chgg:ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTU3OA_096108c2-5e63-4260-aff7-b28bbc796edd">one</ix:nonFraction>-for-one basis. Vesting of PSUs is subject to our achievement of specified financial and strategic performance targets in addition to the employee's continuing service to us while vesting of RSUs is subject to the employee&#8217;s continuing service to us. PSUs vest subject to the achievement of performance objectives and if achieved, typically vest over <ix:nonNumeric contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MjgwMw_9de7e26f-98ab-490c-a390-2fc1318bf3f4">three years</ix:nonNumeric> while RSUs are typically fully vested at the end of <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDYzMg_7f49de0b-bd54-4373-8afe-28d7d153a634">three</span> or <ix:nonNumeric contextRef="i201e1f4000664b508d73f5e86160e5bf_D20210101-20210331" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDY1MQ_026781d3-614f-46d6-9a8f-86a8e293b94a">four years</ix:nonNumeric>. We assess the achievement of financial and strategic performance targets on a quarterly basis and adjust our share-based compensation expense as appropriate.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">RSU and PSU Activity</span></div><div><span><br/></span></div><ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE5Mg_9fa0385e-3971-4fb0-9f9c-f35b662012fb" escape="true"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Activity for RSUs and PSUs is as follows:</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:74.777%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.598%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">RSUs and PSUs&#160;Outstanding</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Shares Outstanding</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Weighted Average Grant&#160;Date Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance at December 31, 2020</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i91929bef1c4e43a2abbf3d3a09e0d999_I20201231" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMi0xLTEtMS0w_1bd48d84-912e-4b0a-954e-80d8f3ddc298">4,816,000</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usdPerShare" contextRef="i91929bef1c4e43a2abbf3d3a09e0d999_I20201231" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMi0zLTEtMS0w_c0b0b666-64c2-446e-aaec-545252378b8a">37.82</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Granted</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMy0xLTEtMS0w_5863ce68-5386-4365-9414-58786fd80deb">1,885,015</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usdPerShare" contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMy0zLTEtMS0w_8c7114a1-f193-461e-a10b-dd4b6174da07">87.14</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Released</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="shares" contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNC0xLTEtMS0w_4f91f395-c1f0-458c-b0ce-4b705cf64b00">1,426,075</ix:nonFraction>)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usdPerShare" contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNC0zLTEtMS0w_29329a3a-cf32-454e-95c2-0ee9c39967c8">29.29</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Canceled</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(<ix:nonFraction unitRef="shares" contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNS0xLTEtMS0w_e00db126-ba28-4cf2-be3c-c2eaefa81104">173,936</ix:nonFraction>)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usdPerShare" contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNS0zLTEtMS0w_f8e5ebf8-0168-4a0c-9c64-4f78dcee5ff1">38.79</ix:nonFraction>&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance at March 31, 2021</span></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="shares" contextRef="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNi0xLTEtMS0w_1e9ef37a-7073-4477-a1e8-ae7dc81fe71f">5,101,004</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonFraction unitRef="usdPerShare" contextRef="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNi0zLTEtMS0w_74d0ec0b-936e-4d1e-b408-a8f70e97f921">58.39</ix:nonFraction>&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of March&#160;31, 2021, our total unrecognized share-based compensation expense related to RSUs and PSUs was approximately $<ix:nonFraction unitRef="usd" contextRef="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA4MA_990616b9-d9cc-44bc-99f7-517983bfbcd7">206.4</ix:nonFraction> million, which will be recognized over the remaining weighted-average vesting period of approximately <ix:nonNumeric contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331" format="ixt-sec:duryear" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE3Nw_cd4f6ac7-811b-46b0-9e56-8b44abece028">2.3</ix:nonNumeric> years.</span></div></ix:continuation><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_79"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 11. <ix:nonNumeric contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331" name="us-gaap:RelatedPartyTransactionsDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA4Mw_0b5cd11f-ad51-4733-8ce4-490676f6ceb7" continuedAt="i677eb1f35d904fba9f15a9d6c55342b4" escape="true">Related-Party Transactions</ix:nonNumeric></span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:continuation id="i677eb1f35d904fba9f15a9d6c55342b4" continuedAt="ie1e80424796b422aa6c06bc71056f2a4">Our Chief Executive Officer is a member of the Board of Directors of Adobe Systems Incorporated (Adobe). During the three months ended March 31, 2021 and 2020, we purchased $<ix:nonFraction unitRef="usd" contextRef="i1f614ee084a1468686803c83c6301868_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTc1_6d543312-6f94-4cfd-878f-990bbf351134">0.6</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="idb10cb96493c47de81f06e9bd4923178_D20200101-20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTgy_b9b3f5f7-cd10-4e5b-a095-d8258ba99ea6">0.4</ix:nonFraction> million, respectively, of services from Adobe. We had <ix:nonFraction unitRef="usd" contextRef="i1f614ee084a1468686803c83c6301868_D20210101-20210331" decimals="INF" format="ixt-sec:numwordsen" name="us-gaap:RevenueFromRelatedParties" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMjg4_f910bd32-89bd-454a-bda5-39db66ce6004">no</ix:nonFraction> revenues during the three months ended March 31, 2021 and $<ix:nonFraction unitRef="usd" contextRef="idb10cb96493c47de81f06e9bd4923178_D20200101-20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RevenueFromRelatedParties" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMzE4_9d545c20-603f-4c8f-8ba9-b369ee57220f">0.1</ix:nonFraction> million of revenues during the three months ended March 31, 2020 from Adobe. We had an immaterial amount and $<ix:nonFraction unitRef="usd" contextRef="ic935a646906045b6888f5a72bcc403e5_I20201231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DueToOfficersOrStockholdersCurrent" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNDE4_593ff0c6-52e2-42d4-b811-2066771baf91">0.1</ix:nonFraction> million of payables as of March&#160;31, 2021 and December&#160;31, 2020, respectively, to Adobe. We had <ix:nonFraction unitRef="usd" contextRef="ic935a646906045b6888f5a72bcc403e5_I20201231" decimals="-5" format="ixt-sec:numwordsen" name="us-gaap:RelatedPartyTransactionDueFromToRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNDgx_068d1fe5-676a-42b7-a437-eeda183f3e6f"><ix:nonFraction unitRef="usd" contextRef="i44c5b21731b04cbb934f4da7c11bc671_I20210331" decimals="-5" format="ixt-sec:numwordsen" name="us-gaap:RelatedPartyTransactionDueFromToRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNDgx_b7416c41-12ed-4f6d-82ce-aa7945dbb8f2">no</ix:nonFraction></ix:nonFraction> outstanding receivables as of March&#160;31, 2021 and December&#160;31, 2020 from Adobe.</ix:continuation></span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">22</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><ix:continuation id="ie1e80424796b422aa6c06bc71056f2a4"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The immediate family of&#160;<ix:nonFraction unitRef="board_member" contextRef="i2dfc98470ee44a22bb6fda10432c17d0_D20210101-20210331" decimals="INF" format="ixt-sec:numwordsen" name="chgg:RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMjE5OTAyMzI1ODIxNA_35291be7-ed80-48bd-8e8e-a879281ef86b">one</ix:nonFraction>&#160;of our board members is a member of the Board of Directors of PayPal Holdings, Inc. (PayPal). During the&#160;three months ended March 31, 2021 and 2020, we incurred payment processing fees of&#160;$<ix:nonFraction unitRef="usd" contextRef="i2dfc98470ee44a22bb6fda10432c17d0_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNzEz_4f9a5209-ce5c-4d4b-8901-86381f15cc09">0.7</ix:nonFraction> million&#160;and $<ix:nonFraction unitRef="usd" contextRef="ieaf219e91397420b8ac83b4004a64436_D20200101-20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNzIw_0afa0b7c-b476-4d6e-bc7f-4c62e454cdd4">0.5</ix:nonFraction> million, respectively, to PayPal.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:nonFraction unitRef="board_member" contextRef="i54b84e300cd7411394549e694c42c059_D20210101-20210331" decimals="INF" format="ixt-sec:numwordsen" name="chgg:RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA5OTUxMTYyOTAyOA_a3fad5f4-72df-4a50-9368-fa25823bf835">One</ix:nonFraction> of our board members is also a member of the Board of Directors of Zuora, Inc. (Zuora). During the three months ended March 31, 2021 and 2020, we purchased $<ix:nonFraction unitRef="usd" contextRef="i54b84e300cd7411394549e694c42c059_D20210101-20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA5OTUxMTYyOTA1NA_7bd00d52-f515-4905-b748-849eff3beef5">0.4</ix:nonFraction>&#160;million and $<ix:nonFraction unitRef="usd" contextRef="i50761de480ce48699fb0528ba8500b03_D20200101-20200331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA5OTUxMTYyOTgxMA_38bb007f-9b35-4907-8d14-37390a43cde4">0.2</ix:nonFraction>&#160;million of services from Zuora.</span></div></ix:continuation><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_85"></div><div style="padding-left:40.5pt;text-indent:-40.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;2. MANAGEMENT&#8217;S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS</span></div><div><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">You should read the following discussion of our financial condition and results of operations in conjunction with our condensed consolidated financial statements and the related notes included in Part I, Item&#160;1, &#8220;Financial Statements (unaudited)&#8221; of this Quarterly Report on Form 10-Q. In addition to historical consolidated financial information, the following discussion contains forward-looking statements that reflect our plans, estimates, and beliefs. Our actual results could differ materially from those discussed in the forward-looking statements. See the section titled &#8220;Note about Forward-Looking Statements&#8221; for additional information. Factors that could cause or contribute to these differences include those discussed below and elsewhere in this Quarterly Report on Form 10-Q.</span></div><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_88"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Overview</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Chegg is A Smarter Way to Student</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">&#174;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. We strive to improve educational outcomes by putting the student first. We support students on their journey from high school to college and into their career with tools designed to help them learn their course materials, succeed in their classes, save money on required materials, and learn the most in-demand skills. Our services are available online, anytime and anywhere. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Students subscribe to our subscription services, which we collectively refer to as Chegg Services. Our primary Chegg Services include Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, Mathway, and Thinkful. Our Chegg Study subscription service provides &#8220;Expert Questions and Answers&#8221; and step-by-step &#8220;Textbook Solutions,&#8221; helping students with their course work. When students need writing help, including plagiarism detection scans and creating citations for their papers, they can use our Chegg Writing subscription service. Our Chegg Math Solver subscription service helps students understand math by providing a step-by-step math solver and calculator, and we expect to incorporate Mathway into Chegg Math Solver. We also offer our Chegg Study Pack as a premium subscription bundle of our Chegg Study, Chegg Writing, and Chegg Math Solver services. Our Thinkful skills-based learning platform offers professional courses focused on the most in-demand technology skills.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Required Materials includes our print textbook and eTextbook offerings, which help students save money compared to the cost of buying new. We offer an extensive print textbook library primarily for rent and also for sale both on our own and through our print textbook partners. We partner with a variety of third parties to source print textbooks and eTextbooks directly or indirectly from publishers in the United States, including Cengage Learning, Pearson, McGraw Hill, Sage Publications, and John Wiley &amp; Sons, Inc.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021 and 2020, we generated net revenues of $198.4 million and $131.6 million, respectively, and in the same periods had net losses of $65.2 million and $5.7 million, respectively. During the three months ended March 31, 2021, the COVID-19 pandemic had a positive impact to our business and results of operations as we saw an increase in the acceleration of subscriber growth and engagement with our learning platform. However, the COVID-19 pandemic also subjects our business to numerous risks and uncertainties, most of which are beyond our control and cannot be predicted, including when colleges will resume in-person classes or how well they will overcome the impacts of the COVID-19 pandemic.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our long-term strategy is centered upon our ability to utilize Chegg Services to increase student engagement with our learning platform. We plan to continue to invest in the expansion of our Chegg Services to provide a more compelling and personalized solution and deepen engagement with students. In addition, we believe that the investments we have made to achieve our current scale will allow us to drive increased operating margins over time that, together with increased contributions of Chegg Services, will enable us to become profitable and remain cash-flow positive in the long-term.  Our ability to achieve these long-term objectives is subject to numerous risks and uncertainties, including our ability to attract, retain, and increasingly engage the student population, intense competition in our markets, the ability to achieve sufficient contributions to revenue from Chegg Services, and other factors, such as the COVID-19 pandemic. These risks and uncertainties are described in greater detail in Part I, Item 1A, &#8220;Risk Factors&#8221; in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020.</span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">23</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have presented revenues for our two product lines, Chegg Services and Required Materials, based on how students view us and the utilization of our products by them. More detail on our two product lines is discussed in the next two sections titled &#8220;Chegg Services&#8221; and &#8220;Required Materials.&#8221;</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_91"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Chegg Services</span></div><div style="text-indent:13.5pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our Chegg Services product line for students primarily includes Chegg Study, Chegg Writing, Chegg Math Solver, Chegg Study Pack, Mathway, and Thinkful. Students typically pay to access Chegg Services on a monthly basis. We also work with leading brands to provide students with discounts, promotions, and other products that, based on student feedback, delight them. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In the aggregate, Chegg Services revenues were 82% and 76% of net revenues during the three months ended March 31, 2021 and 2020, respectively.</span></div><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_94"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Required Materials</span></div><div style="text-indent:13.5pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our Required Materials product line includes revenues from print textbooks and eTextbooks. Revenues from print textbooks that we own are recognized as the total transaction amount ratably over the rental term, generally a two- to five-month period. Revenues from print textbooks owned by a partner are recognized as a revenue share on the total transactional amount of a rental or sale transaction immediately when a print textbook ships to a student. Additionally, Required Materials includes revenues from eTextbooks, which are recognized ratably over the contractual period, generally a two- to five-month period.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In the aggregate, Required Materials revenues were 18% and 24% of net revenues during the three months ended March 31, 2021 and 2020, respectively.</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_100"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Seasonality of Our Business</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Revenues from Chegg Services, print textbooks that we own, and eTextbooks are primarily recognized ratably over the term a student subscribes to our Chegg Services, rents a print textbook or has access to an eTextbook. This has generally resulted in our highest revenues and profitability in the fourth quarter as it reflects more days of the academic year. Our variable expenses related to cost of revenues and marketing activities remain highest in the first and third quarters such that our profitability may not provide meaningful insight on a sequential basis.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As a result of these factors, the most concentrated periods for our revenues and expenses do not necessarily coincide, and comparisons of our historical quarterly results of operations on a sequential basis may not provide meaningful insight into our overall financial performance.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">24</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_103"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Results of Operations</span></div><div style="margin-top:6pt;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes our historical condensed consolidated statements of operations (in thousands, except percentage of total net revenues):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:60.011%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.384%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:5.771%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.384%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.595%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.384%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:5.776%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="border-bottom:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net revenues</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">198,378&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">100&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,590&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">100&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cost of revenues</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">71,384&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">42,390&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">32&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gross profit</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">126,994&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">64&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">89,200&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">68&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Operating expenses:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Research and development</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">46,131&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">23&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,541&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">30&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Sales and marketing</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">26,214&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">20,238&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General and administrative</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">37,870&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">19&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">26,145&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">20&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total operating expenses</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">110,215&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">55&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">85,924&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">65&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Income from operations</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">16,779&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,276&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total interest expense, net and other (expense) income, net</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(79,137)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(40)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(8,467)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(7)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss before provision for income taxes</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(62,358)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(31)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(5,191)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(4)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Provision for income taxes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,821&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">522&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(65,179)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(33)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(5,713)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(4)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:12pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> Includes share-based compensation expense as follows:</span></div></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Cost of revenues</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">362&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">169&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Research and development</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,959&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">6,991&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Sales and marketing</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,919&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,186&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">General and administrative</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,860&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,988&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total share-based compensation expense</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">23,100&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">18,334&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="text-indent:13.5pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">25</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Three Months Ended March&#160;31, 2021 and 2020</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-style:italic;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Net Revenues</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our total net revenues for the periods shown for our Chegg Services and Required Materials product lines (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:59.457%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.672%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chegg Services</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">162,351&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">100,359&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">61,992&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">62&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Required Materials</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36,027&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">31,231&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,796&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total net revenues</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">198,378&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,590&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">66,788&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">51&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Chegg Services revenues increased $62.0 million, or 62%, during the three months ended March 31, 2021, compared to the same period in 2020, primarily due to our efforts to reduce account sharing, increased global penetration, the introduction of  new offerings, and the widespread transition to remote learning as a result of the COVID-19 pandemic. Chegg Services revenues were 82% and 76% of net revenues during the three months ended March 31, 2021 and 2020, respectively. Required Materials revenues increased $4.8 million, or 15%, during the three months ended March 31, 2021, respectively, compared to the same period in 2020. Required Materials revenues were 18% and 24% of net revenues during the three months ended March 31, 2021 and 2020, respectively.</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Cost of Revenues</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our cost of revenues for the periods shown (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:59.661%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.709%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.709%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.709%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.516%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cost of revenues</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">71,384&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">42,390&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">28,994&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">68&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:8pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> Includes share-based compensation expense of:</span></div></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">362&#160;</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">169&#160;</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">193&#160;</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">114&#160;</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cost of revenues increased $29.0 million, or 68%, during the three months ended March 31, 2021, compared to the same period in 2020. The increase was primarily attributable to higher order fulfillment fees of $5.3 million, higher net loss on textbook library of $5.2&#160;million primarily due to increased write-downs, higher cost of textbooks purchased by students of $4.9&#160;million, higher amortization of content of $2.4 million,</span><span style="color:#ee2724;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">higher amortization of intangible assets of $2.1&#160;million, higher customer support fees of $2.0&#160;million, higher payment processing fees of $1.8 million, higher employee-related expenses of $1.5&#160;million. and higher share-based compensation expense of $0.2 million. Gross margins decreased to 64%</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">during the three months ended March 31, 2021, from 68% during the same period in 2020.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">26</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Operating Expenses</span></div><div style="margin-top:6pt;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our total operating expenses for the periods shown (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:59.457%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.672%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Research and development</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">46,131&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,541&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">6,590&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">17&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Sales and marketing</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">26,214&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">20,238&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,976&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">30&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General and administrative</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">37,870&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">26,145&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,725&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">45&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total operating expenses</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">110,215&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">85,924&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24,291&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">28&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr style="height:8pt"><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:400;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1) </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Includes share-based compensation expense of:</span></div></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Research and development</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">7,959&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">6,991&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">968&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">14&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Sales and marketing</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">2,919&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">2,186&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">733&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">34&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">General and administrative</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">11,860&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">8,988&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">2,872&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">32&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Share-based compensation expense</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">22,738&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">18,165&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">4,573&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">25&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Research and Development</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Research and development expense increased $6.6 million, or 17%, during the three months ended March 31, 2021 compared to the same period in 2020. The increase was primarily attributable to higher technology costs to support our research and development of $3.9 million, an increase in employee-related expenses of $3.2 million, higher share-based compensation expense of $1.0 million, compared to the same period in 2020. Research and development expense as a percentage of net revenues were 23% during the three months ended March 31, 2021 compared to 30% during the same period in 2020.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Sales and Marketing</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Sales and marketing expense increased by $6.0 million, or 30%, during the three months ended March 31, 2021, compared to the same period in 2020. The increase was primarily attributable to increased global marketing spend of $2.4 million, higher employee-related expenses of $1.1&#160;million, and higher share-based compensation expense of $0.7 million, compared to the same period in 2020.&#160;Sales and marketing expense as a percentage of net revenues were 13% during the three months ended March 31, 2021 compared to 15% during the same period in 2020.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">General and Administrative</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">General and administrative expense increased $11.7 million, or 45%, during the three months ended March 31, 2021 compared to the same period in 2020. The increase was primarily due to higher professional fees of $3.1&#160;million, higher share-based compensation expense of $2.9 million, and higher employee-related expenses of $2.5 million, compared to the same period in 2020. General and administrative expense as a percentage of net revenues were 19% during the three months ended March 31, 2021 compared to 20% during the same period in 2020.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Interest Expense and Other (Expense) Income, Net</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our interest expense and other (expense) income, net, for the periods shown (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:59.457%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.672%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest expense, net</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,929)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(13,427)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,498&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">n/m</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other (expense) income, net</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(77,208)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,960&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(82,168)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">n/m</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total interest expense, net and other (expense) income, net</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(79,137)</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(8,467)</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(70,670)</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">n/m</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:120%">_______________________________________</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%">n/m - not meaningful</span></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">27</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Interest expense, net decreased during the three months ended March 31, 2021, compared to the same period in 2020 due to the reduction in non-cash interest expense related to the debt discount as a result of the adoption of ASU 2020-06 on January 1, 2021. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other (expense) income, net, decreased during the three months ended March 31, 2021, compared to the same period in 2020, primarily as a result of the $78.2&#160;million loss on early extinguishment of debt of the 2025 notes, $7.1&#160;million net loss on the change in fair value of derivative instruments, and $2.8&#160;million of lower interest income earned on our investments, partially offset by the $5.3&#160;million gain on the sale of the strategic equity investment.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">See Note 7, &#8220;Convertible Senior Notes,&#8221; of our accompanying Notes to Condensed Consolidated Financial Statements included in Part I, Item 1, &#8220;Financial Statements (unaudited)&#8221; of this Quarterly Report on Form 10-Q for additional information on changes to interest expense, net and other (expense) income, net related to our convertible senior notes and derivative instruments.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Provision for Income Taxes</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following tables set forth our provision for income taxes for the periods shown (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:59.457%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.724%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:6.672%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Provision for income taxes</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,821&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">522&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,299&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">440&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We recorded an income tax provision of approximately $2.8 million and $0.5 million during the three months ended March 31, 2021 and 2020, respectively. The increase during the three months ended March 31, 2021 compared to the same period in 2020 was primarily due to an increase in foreign profits and the withholding taxes related to the sale of our strategic equity investment.</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_106"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Liquidity and Capital Resources</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of March&#160;31, 2021, our principal sources of liquidity were cash, cash equivalents, and investments totaling $2.6 billion, which were held for working capital purposes. The substantial majority of our net revenues are from e-commerce transactions with students, which are settled immediately through payment processors, as opposed to our accounts payable, which are settled based on contractual payment terms with our suppliers. </span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In June 2020, our board of directors approved a securities repurchase program authorizing our repurchase of up to $500.0&#160;million of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements. The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors.  Through March&#160;31, 2021, we have repurchased $57.4&#160;million and $100.0&#160;million of aggregate principal amount of the 2023 notes and 2025 notes, respectively, in privately negotiated transactions for an aggregate consideration of $149.6&#160;million and $184.9&#160;million, respectively. $165.5&#160;million remain under the repurchase program, which will end on December 31, 2021.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In February 2021, we completed an equity offering in which we raised net proceeds of $1,091.5&#160;million, after deducting underwriting discounts and commissions and offering expenses (2021 equity offering). In August 2020, March/April 2019 and April 2018, we closed offerings of our 2026 notes, 2025 notes and 2023 notes generating net proceeds of approximately $984.1 million, $780.2 million and $335.6 million, respectively, in each case after deducting the initial purchasers&#8217; discount and estimated offering expenses payable by us.  The 2026 notes, 2025 notes and 2023 notes mature on September&#160;1, 2026, March&#160;15, 2025 and May&#160;15, 2023, respectively, unless converted, redeemed or repurchased in accordance with their terms prior to such date. During the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes, and therefore we intend to settle the 2023 notes converted pursuant to our election of our option to redeem such 2023 notes through a combination of cash and shares on May 20, 2021.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of March&#160;31, 2021, we have incurred cumulative losses of $400.9 million from our operations and we expect to incur additional losses in the future. Our operations have been financed primarily by our initial public offering of our common stock (IPO), our 2017 follow-on public offering, our 2023 notes, 2025 notes and 2026 notes offerings, our 2021 equity offering, and cash generated from operations.</span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">28</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We believe that our existing sources of liquidity will be sufficient to fund our operations and debt service obligations for at least the next 12 months. Our future capital requirements will depend on many factors, including our rate of revenue growth, our investments in research and development activities, our acquisition of new products and services and our sales and marketing activities. To the extent that existing cash and cash from operations are insufficient to fund our future activities, we may need to raise additional funds through public or private equity or debt financing. Additional funds may not be available on terms favorable to us or at all. If adequate funds are not available on acceptable terms, or at all, we may be unable to adequately fund our business plans and it could have a negative effect on our business, operating cash flows and financial condition.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Most of our cash is held in the United States. As of March&#160;31, 2021, our foreign subsidiaries held an insignificant amount of cash in foreign jurisdictions. We currently do not intend or foresee a need to repatriate some of these foreign funds; however, as a result of the Tax Cuts and Jobs Act, we anticipate the U.S. federal impact to be minimal if these foreign funds are repatriated. In addition, based on our current and future needs, we believe our current funding and capital resources for our international operations are adequate.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our cash flows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:74.706%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.630%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:10.631%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-top:3pt;padding-left:6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Condensed Consolidated Statements of Cash Flows Data:</span></div></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net cash provided by operating activities</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">73,573&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">62,967&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net cash used in investing activities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(764,952)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(47,262)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net cash provided by (used in) financing activities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">867,600&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(44,169)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Cash Flows from Operating Activities</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net cash provided by operating activities during the three months ended March 31, 2021 was $73.6 million. Our net loss of $65.2 million was offset by significant non-cash operating expenses including print textbook depreciation expense of $3.8 million, other depreciation and amortization expense of $14.8 million, share-based compensation expense of $23.1 million, the loss on early extinguishment of debt of $78.2 million, the net loss on the change in fair value of derivative instruments of $7.1 million, and the net loss on textbook library of $4.0 million, which was primarily due to increased write-downs, partially offset by the gain on sale of strategic equity investment of $5.3 million.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net cash&#160;provided by&#160;operating activities during the&#160;three months ended March 31, 2020&#160;was&#160;$63.0 million. Our net loss of&#160;$5.7 million&#160;was reduced by the change in our deferred revenue of $17.0 million and accrued liabilities of $16.0 million. Additionally, we had significant non-cash operating expenses including print textbook depreciation expense of $3.5 million, other depreciation and amortization expense of&#160;$9.2 million,&#160;share-based compensation expense of&#160;$18.3 million, and the amortization of debt discount and issuance costs related to the notes of $12.9 million.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Cash Flows from Investing Activities</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net cash used in investing activities during the three months ended March 31, 2021 was $765.0 million and was related to the purchases of investments of $925.7 million, the purchases of property and equipment of $19.0 million, the acquisition of business of $7.9 million and the purchases of textbooks of $4.5 million, partially offset by the maturity of investments of $181.3 million, proceeds from the sale of strategic equity investment of $6.8 million, and proceeds from the disposition of textbooks of $4.0 million.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net cash&#160;used in&#160;investing activities during the&#160;three months ended March 31, 2020&#160;was&#160;$47.3 million&#160;and was related to the purchases of investments of $112.4 million, the purchases of textbooks of $36.8 million, the purchases of property and equipment of $20.0 million and the purchase of strategic equity investment of $2.0 million, partially offset by the maturity of investments of $121.8 million and proceeds from the disposition of textbooks of $2.2 million.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Cash Flows from Financing Activities</span></div><div style="text-indent:13.5pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net cash provided by financing activities during the three months ended March 31, 2021 was $867.6 million and was related to the net proceeds from our equity offering of $1,091.5 million, proceeds from 2023 notes and 2025 notes capped call instruments of $24.8 million, and proceeds from the issuance of common stock under stock plans of $0.3 million, partially offset by the repayment of a portion of our 2023 notes and 2025 notes of $189.8 million and payment of $59.2 million in taxes </span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">29</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">related to the net share settlement of equity awards.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net cash used in&#160;financing activities during the three months ended March 31, 2020&#160;was&#160;$44.2 million&#160;and was related to the payment of $46.8 million in taxes related to the net share settlement of equity awards, partially offset by proceeds from the issuance of common stock under stock plans of $2.7 million.</span></div><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_109"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Contractual Obligations and Other Commitments</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, we extinguished $<ix:nonFraction unitRef="usd" contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DebtInstrumentRepurchasedFaceAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xMDkvZnJhZzoxNDcyNjUwYmViNGU0MDgzYWJkMjA2YjNiZjQ4ZjZkMy90ZXh0cmVnaW9uOjE0NzI2NTBiZWI0ZTQwODNhYmQyMDZiM2JmNDhmNmQzXzEyNA_25ca3883-a1cc-45e4-9144-07ed22975910">100.0</ix:nonFraction>&#160;million aggregate principal amount of the 2025 notes and elected our option to redeem the remaining outstanding principal amount of 2023 notes, which is expected to settle on May 20, 2021. See Note 7, &#8220;Convertible Senior Notes,&#8221; of our accompanying Notes to Condensed Consolidated Financial Statements included in Part I, Item 1, &#8220;Financial Statements (unaudited)&#8221; of this Quarterly Report on Form 10-Q.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There were no other material changes in our commitments under contractual obligations, as disclosed in the section titled &#8220;Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations&#8221; contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2020.</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_112"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Off-Balance Sheet Arrangements</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Through March&#160;31, 2021, we did not have any relationships with unconsolidated organizations or financial partnerships, such as structured finance or special purpose entities that would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.</span></div><div style="text-indent:27pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_115"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Critical Accounting Policies, Significant Judgments and Estimates</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our condensed consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, costs and expenses and related disclosures. These estimates form the basis for judgments we make about the carrying values of our assets and liabilities, which are not readily apparent from other sources. We base our estimates and judgments on historical experience and on various other assumptions that we believe are reasonable under the circumstances. On an ongoing basis, we evaluate our estimates and assumptions. The current COVID-19&#160;pandemic has caused uncertainty and disruption in the global economy and financial markets. We are not aware of any specific event or circumstance that would require updates to our estimates or judgments or require us to revise the carrying value of our assets or liabilities. These estimates may change as new events occur and additional information is obtained. Our actual results may differ from these estimates under different assumptions or conditions. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Except for our critical accounting policy on share-based compensation expense, there have been no material changes in our critical accounting policies and estimates during the&#160;three months ended March 31, 2021&#160;as compared to the critical accounting policies and estimates disclosed in Part II, Item 7 &#8220;Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations&#8221; contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2020.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Share-based Compensation Expense</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We measure and recognize share-based compensation expense for all awards made to employees, directors and consultants, including restricted stock units (RSUs), performance-based RSUs (PSUs) with either a market-based condition or financial and strategic performance target and our employee stock purchase plan (ESPP) based on estimated fair values.</span></div><div style="padding-left:24.75pt;text-indent:24.75pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We estimate a forfeiture rate to calculate the share-based compensation expense related to our awards. Estimated forfeitures are determined based on historical data and management&#8217;s expectation of exercise behaviors. We continue to evaluate the appropriateness of the forfeiture rate based on actual forfeiture experience, analysis of employee turnover and other factors. Quarterly changes in the estimated forfeiture rate can have a significant impact on our share-based compensation expense as the cumulative effect of adjusting the rate is recognized in the period the forfeiture estimate is changed. If a revised forfeiture rate is higher than the previously estimated forfeiture rate, an adjustment is made that will result in a decrease to the share-based compensation expense recognized in the financial statements. If a revised forfeiture rate is lower than the previously estimated forfeiture rate, an adjustment is made that will result in an increase to the share-based compensation expense recognized in the financial statements. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">30</span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied subject to continuing service over the requisite service period. Share-based compensation expense recognized related to PSUs with a financial and strategic performance target is subject to the achievement of performance objectives and requires significant judgment by management in determining the current level of attainment of such performance objectives.  Management may consider factors such as the latest revenue forecasts and general business trends in the assessment of whether or not a PSU award will be obtained.  Subsequent changes to these considerations may have a material impact on the amount of share-based compensation expense recognized in the period related to PSU awards, which may lead to volatility of share-based compensation expense period-to-period. If the performance objectives are not met or service is no longer provided, no share-based compensation expense will be recognized, and any previously recognized share-based compensation expense will be reversed.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:1pt;font-weight:400;line-height:120%">&#160;</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We will continue to use judgment in evaluating the assumptions related to our share-based compensation expense on a prospective basis. As we continue to accumulate additional data related to our common stock, we may refine our estimates, which could materially impact our future share-based compensation expense.</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_118"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Recent Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For relevant recent accounting pronouncements, see Note 1, &#8220;Background and Basis of Presentation,&#8221; of our accompanying Notes to Condensed Consolidated Financial Statements included in Part I, Item 1, &#8220;Financial Statements (unaudited)&#8221; of this Quarterly Report on Form 10-Q.</span></div><div style="text-indent:36pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_121"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There have been no other material changes in our market risk during the&#160;three months ended March 31, 2021, compared to the disclosures in Part II, Item 7A, &#8220;Quantitative and Qualitative Disclosures about Market Risk&#8221; contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2020.</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_124"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;4. CONTROLS AND PROCEDURES</span></div><div><span><br/></span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(a)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:6.34pt">Evaluation of Disclosure Controls and Procedures</span></div><div style="padding-left:18pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules&#160;13a-15(e) and 15d-15(e) under the Exchange Act, as of the end of the period covered by this report.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In designing and evaluating our disclosure controls and procedures, management recognizes that any disclosure controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Based on management&#8217;s evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures are designed to, and are effective to, provide assurance at a reasonable level that the information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosures.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(b)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:5.78pt">Changes in Internal Control over Financial Reporting</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, there were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rules 13a-15(d) and 15d-15(d) of the Exchange Act that occurred that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. </span><span style="color:#212529;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We continue to monitor the impact of the COVID-19 pandemic and, despite many of our employees working remotely, have not experienced any changes that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.</span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">31</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_127"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">PART II - OTHER INFORMATION</span></div><div style="text-align:center"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_130"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;1. LEGAL PROCEEDINGS</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">From time to time, third parties may assert patent infringement claims against us in the form of letters, litigation, or other forms of communication. In addition, we may from time to time be subject to other legal proceedings and claims in the ordinary course of business, including claims of alleged infringement of trademarks, copyrights, and other intellectual property rights; employment claims; and general contract or other claims. We may also, from time to time, be subject to various legal or government claims, disputes, or investigations. Such matters may include, but not be limited to, claims, disputes, or investigations related to warranty, refund, breach of contract, employment, intellectual property, government regulation, or compliance or other matters. See Note 8, &#8220;Commitments and Contingencies,&#8221; of our accompanying Notes to Condensed Consolidated Financial Statements included in Part I, Item 1, &#8220;Financial Statements (unaudited)&#8221; of this Quarterly Report on Form 10-Q.</span></div><div><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_133"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;1A. RISK FACTORS</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our operations and financial results are subject to various risks and uncertainties, including those described in Part I, Item 1A, &#8220;Risk Factors&#8221; in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020, which could adversely affect our business, financial condition, results of operations, cash flows, and the trading price of our common stock. There have been no material changes in our risk factors from our Annual Report on Form 10-K.</span></div><div style="text-indent:36pt"><span><br/></span></div><div id="ieafca8a062764ce6914790c9abee6176_136"></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM&#160;2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS</span></div><div style="padding-left:54pt;text-indent:-54pt"><span><br/></span></div><div style="padding-left:54pt;text-indent:-54pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">(a) Unregistered Sales of Equity Securities</span></div><div style="padding-left:54pt;text-indent:-54pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In June 2020, our board of directors approved a securities repurchase program authorizing our repurchase of up to $500.0&#160;million of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements. The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors.  During the three months ended March 31, 2021, we repurchased $100.0&#160;million of aggregate principal amount of the 2025 notes in privately-negotiated transactions for an aggregate consideration of $184.9&#160;million. $165.5&#160;million remains under the repurchase program, which will end on December 31, 2021.</span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">32</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_139"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div style="-sec-extract:summary"><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="-sec-extract:summary"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">ITEM 6. EXHIBITS</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.561%"><tr><td style="width:1.0%"></td><td style="width:7.710%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:41.190%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.710%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.710%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.710%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:8.151%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.534%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:7.715%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="27" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Incorporated&#160;by&#160;Reference</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Exhibit<br/>No.</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Exhibit</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Form</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">File&#160;No</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Filing&#160;Date</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Exhibit&#160;No.</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Filed<br/>Herewith</span></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex31012021-03x31.htm">31.01</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex31012021-03x31.htm">Certification of Dan Rosensweig, Chief Executive Officer and Co-Chairperson, pursuant to Rule 13a-14(a)/15d-14(a), as adopted pursuant to Section&#160;302 of the Sarbanes-Oxley Act of 2002</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex31022021-03x31.htm">31.02</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex31022021-03x31.htm">Certification of Andrew Brown, Chief Financial Officer, pursuant to Rule&#160;13a-14(a)/15d-14(a), as adopted pursuant to Section&#160;302 of the Sarbanes-Oxley Act of 2002</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex32012021-03x31.htm">32.01**</a></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="ex32012021-03x31.htm">Certification pursuant to 18 U.S.C. Section&#160;1350, as adopted pursuant to Section&#160;906 of the Sarbanes-Oxley Act of 2002</a></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101.INS</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Inline XBRL Instance Document</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101.SCH</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Inline XBRL Taxonomy Extension Schema</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101.CAL</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Inline XBRL Taxonomy Extension Calculation</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101.LAB</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Inline XBRL Taxonomy Extension Labels</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101.PRE</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Inline XBRL Taxonomy Extension Presentation</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">101.DEF</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Inline XBRL Taxonomy Extension Definition</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">X</span></td></tr></table></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:4.911%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:92.889%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="display:none"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">**</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">This certification is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended (Exchange Act), or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act.</span></td></tr></table></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="-sec-extract:summary;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">33</span></div></div></div><div id="ieafca8a062764ce6914790c9abee6176_142"></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline"><a style="color:#0000ff;font-family:'Times New Roman',sans-serif;font-size:7pt;font-weight:400;line-height:120%;text-decoration:underline" href="#ieafca8a062764ce6914790c9abee6176_7">Table of Contents</a></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SIGNATURES</span></div><div style="margin-top:12pt;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Pursuant to the requirements of Section&#160;13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.415%"><tr><td style="width:1.0%"></td><td style="width:46.694%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:3.458%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.829%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:45.519%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">CHEGG, INC.</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">May 3, 2021</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">By:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;/S/ ANDREW BROWN</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Andrew Brown</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chief Financial Officer<br/>(Duly Authorized Officer and Principal Financial Officer)</span></td></tr></table></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">34</span></div></div></div></body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.01
<SEQUENCE>2
<FILENAME>ex31012021-03x31.htm
<DESCRIPTION>EX-31.01
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
<!-- Document created using Wdesk -->
<!-- Copyright 2021 Workiva -->
<title>Document</title></head><body><div id="if9393185c86445e8839df5dcad0e7b7f_1"></div><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Exhibit 31.01 </font></div><div style="margin-top:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CERTIFICATION PURSUANT TO </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">RULE 13a-14(a)&#47;15d-14(a) </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">AS ADOPTED PURSUANT TO </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SECTION&#160;302 OF THE SARBANES-OXLEY ACT OF 2002 </font></div><div style="margin-top:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">I, Dan Rosensweig, certify that&#58; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">1.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">I have reviewed this quarterly report on Form&#160;10-Q of Chegg,&#160;Inc.&#59; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">2.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report&#59; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">3.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report&#59; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">4.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">The registrant&#8217;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules&#160;13a-15(e)&#160;and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)), for the registrant and have&#58;</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">a)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.52pt">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared&#59;</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">b)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.01pt">Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles&#59;</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">c)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.52pt">Evaluated the effectiveness of the registrant&#8217;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation&#59; and</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">d)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.01pt">Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting&#59; and</font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">5.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">The registrant&#8217;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&#8217;s auditors and the audit committee of the registrant&#8217;s board of directors (or persons performing the equivalent functions)&#58; </font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">a)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.52pt">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#8217;s ability to record, process, summarize and report financial information&#59; and</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">b)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.01pt">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#8217;s internal control over financial reporting.</font></div><div style="margin-top:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Date&#58; May&#160;3, 2021 </font></div><div style="margin-top:12pt"><font><br></font></div><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </font></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:right"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:39.903%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#47;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">S</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#47; D</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">AN</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> R</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">OSENSWEIG</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></div></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Dan Rosensweig</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">President, Chief Executive Officer and Co-Chairperson</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Principal Executive Officer)</font></td></tr></table></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.02
<SEQUENCE>3
<FILENAME>ex31022021-03x31.htm
<DESCRIPTION>EX-31.02
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
<!-- Document created using Wdesk -->
<!-- Copyright 2021 Workiva -->
<title>Document</title></head><body><div id="i4d4a9aae0e494219ab38c9e1cb418296_1"></div><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Exhibit 31.02 </font></div><div style="margin-top:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CERTIFICATION PURSUANT TO </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">RULE 13a-14(a)&#47;15d-14(a) </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">AS ADOPTED PURSUANT TO </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SECTION&#160;302 OF THE SARBANES-OXLEY ACT OF 2002 </font></div><div style="margin-top:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">I, Andrew Brown, certify that&#58; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">1.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">I have reviewed this quarterly report on Form&#160;10-Q of Chegg,&#160;Inc.&#59; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">2.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report&#59; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">3.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report&#59; </font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">4.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">The registrant&#8217;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules&#160;13a-15(e)&#160;and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)), for the registrant and have&#58;</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">a)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.52pt">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared&#59;</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">b)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.01pt">Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles&#59;</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">c)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.52pt">Evaluated the effectiveness of the registrant&#8217;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation&#59; and</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">d)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.01pt">Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting&#59; and</font></div><div style="margin-top:6pt;padding-left:9pt;text-indent:-9pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">5.</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:2.25pt">The registrant&#8217;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&#8217;s auditors and the audit committee of the registrant&#8217;s board of directors (or persons performing the equivalent functions)&#58; </font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">a)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.52pt">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#8217;s ability to record, process, summarize and report financial information&#59; and</font></div><div style="margin-top:6pt;padding-left:108pt;text-indent:-40.5pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">b)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:33.01pt">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#8217;s internal control over financial reporting.</font></div><div style="margin-top:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Date&#58; May&#160;3, 2021 </font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:right"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:39.903%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#47;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">S</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#47; A</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">NDREW</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> B</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">ROWN</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</font></div></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Andrew Brown</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Chief Financial Officer</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Principal Financial Officer)</font></td></tr></table></div><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.01
<SEQUENCE>4
<FILENAME>ex32012021-03x31.htm
<DESCRIPTION>EX-32.01
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
<!-- Document created using Wdesk -->
<!-- Copyright 2021 Workiva -->
<title>Document</title></head><body><div id="i05acf9d4221742069dc05c2a74bbae6d_1"></div><div style="min-height:72pt;width:100%"><div><font><br></font></div></div><div style="text-align:right"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Exhibit 32.01 </font></div><div style="margin-top:12pt;text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">CERTIFICATION </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">PURSUANT TO </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">18 U.S.C. SECTION 1350 </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">AS ADOPTED PURSUANT TO </font></div><div style="text-align:center"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 </font></div><div style="margin-top:12pt;text-indent:27pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In connection with the Quarterly Report on Form&#160;10-Q for the three months ended March 31, 2021&#160;of Chegg, Inc. (the &#8220;Registrant&#8221;) filed with the Securities and Exchange Commission on the date hereof (the &#8220;Report&#8221;), the undersigned, each certify, in accordance with Rule&#160;13a-14(b) of the Securities Exchange Act of 1934 and 18 U.S.C. Section&#160;1350, that to the best of his knowledge&#58; </font></div><div style="margin-top:6pt;padding-left:22.5pt;text-indent:-18pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(1)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:6.34pt">The Report, to which this certification is attached as Exhibit&#160;32.01, fully complies with the requirements of Section&#160;13(a) of the Securities Exchange Act of 1934&#59; and</font></div><div style="margin-top:6pt;padding-left:22.5pt;text-indent:-18pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(2)</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:6.34pt">The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.</font></div><div style="margin-top:6pt"><font><br></font></div><div style="margin-top:12pt"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Dated&#58; May&#160;3, 2021 </font></div><div><font><br></font></div><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</font></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.679%"><tr><td style="width:1.0%"></td><td style="width:47.935%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.729%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:47.936%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">&#47;S&#47;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> D</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">AN</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> R</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">OSENSWEIG</font></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">&#47;S&#47;</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> A</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">NDREW</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> B</font><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:7.5pt;font-weight:400;line-height:100%">ROWN</font></div></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Dan Rosensweig</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Andrew Brown</font></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">President, Chief Executive Officer and Co-Chairperson</font></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chief Financial Officer</font></td></tr></table></div><div><font style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</font></div><div style="height:72pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>chgg-20210331.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:7620c16c-72f1-4706-8c7f-035d13f64afa,g:676e331c-5624-4c9f-b3c2-ce75be2bd13e-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:chgg="http://www.chegg.com/20210331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.chegg.com/20210331">
  <xs:import namespace="http://fasb.org/srt/2020-01-31" schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2020-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2020-01-31" schemaLocation="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="chgg-20210331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="chgg-20210331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="chgg-20210331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="chgg-20210331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverPage" roleURI="http://www.chegg.com/role/CoverPage">
        <link:definition>0001001 - Document - Cover Page</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDBALANCESHEETS" roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS">
        <link:definition>1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical">
        <link:definition>1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS">
        <link:definition>1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS">
        <link:definition>1004005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
        <link:definition>1005006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS">
        <link:definition>1006007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BackgroundandBasisofPresentation" roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentation">
        <link:definition>2101101 - Disclosure - Background and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BackgroundandBasisofPresentationTables" roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationTables">
        <link:definition>2302301 - Disclosure - Background and Basis of Presentation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BackgroundandBasisofPresentationPolicies" roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies">
        <link:definition>2203201 - Disclosure - Background and Basis of Presentation (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BackgroundandBasisofPresentationDetails" roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails">
        <link:definition>2404401 - Disclosure - Background and Basis of Presentation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BackgroundandBasisofPresentationOtherIncomeExpensesDetails" roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails">
        <link:definition>2405402 - Disclosure - Background and Basis of Presentation - Other Income (Expenses) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BackgroundandBasisofPresentationConvertibleNotesDetails" roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails">
        <link:definition>2406403 - Disclosure - Background and Basis of Presentation - Convertible Notes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Revenues" roleURI="http://www.chegg.com/role/Revenues">
        <link:definition>2107102 - Disclosure - Revenues</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesTables" roleURI="http://www.chegg.com/role/RevenuesTables">
        <link:definition>2308302 - Disclosure - Revenues (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RevenuesDetails" roleURI="http://www.chegg.com/role/RevenuesDetails">
        <link:definition>2409404 - Disclosure - Revenues (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShare" roleURI="http://www.chegg.com/role/NetLossPerShare">
        <link:definition>2110103 - Disclosure - Net Loss Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShareTables" roleURI="http://www.chegg.com/role/NetLossPerShareTables">
        <link:definition>2311303 - Disclosure - Net Loss Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" roleURI="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails">
        <link:definition>2412405 - Disclosure - Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" roleURI="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails">
        <link:definition>2413406 - Disclosure - Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashandCashEquivalentsandInvestments" roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestments">
        <link:definition>2114104 - Disclosure - Cash and Cash Equivalents, and Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashandCashEquivalentsandInvestmentsTables" roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables">
        <link:definition>2315304 - Disclosure - Cash and Cash Equivalents, and Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails">
        <link:definition>2416407 - Disclosure - Cash and Cash Equivalents, and Investments - Schedule of Available For Sale Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashandCashEquivalentsandInvestmentsContractualMaturityDetails" roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails">
        <link:definition>2417408 - Disclosure - Cash and Cash Equivalents, and Investments - Contractual Maturity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails">
        <link:definition>2418409 - Disclosure - Cash and Cash Equivalents, and Investments - Strategic Investment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurement" roleURI="http://www.chegg.com/role/FairValueMeasurement">
        <link:definition>2119105 - Disclosure - Fair Value Measurement</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementTables" roleURI="http://www.chegg.com/role/FairValueMeasurementTables">
        <link:definition>2320305 - Disclosure - Fair Value Measurement (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementFinancialInstrumentsDetails" roleURI="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails">
        <link:definition>2421410 - Disclosure - Fair Value Measurement - Financial Instruments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementDebtDetails" roleURI="http://www.chegg.com/role/FairValueMeasurementDebtDetails">
        <link:definition>2422411 - Disclosure - Fair Value Measurement - Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Acquisitions" roleURI="http://www.chegg.com/role/Acquisitions">
        <link:definition>2123106 - Disclosure - Acquisitions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AcquisitionsDetails" roleURI="http://www.chegg.com/role/AcquisitionsDetails">
        <link:definition>2424412 - Disclosure - Acquisitions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotes" roleURI="http://www.chegg.com/role/ConvertibleSeniorNotes">
        <link:definition>2125107 - Disclosure - Convertible Senior Notes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesTables" roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesTables">
        <link:definition>2326306 - Disclosure - Convertible Senior Notes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesDetails" roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesDetails">
        <link:definition>2427413 - Disclosure - Convertible Senior Notes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesNetCarryingAmountDetails" roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails">
        <link:definition>2428414 - Disclosure - Convertible Senior Notes - Net Carrying Amount (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesInterestExpenseRecognizedDetails" roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails">
        <link:definition>2429415 - Disclosure - Convertible Senior Notes - Interest Expense Recognized (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConvertibleSeniorNotesCappedCallDetails" roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails">
        <link:definition>2430416 - Disclosure - Convertible Senior Notes - Capped Call (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://www.chegg.com/role/CommitmentsandContingencies">
        <link:definition>2131108 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesDetails" roleURI="http://www.chegg.com/role/CommitmentsandContingenciesDetails">
        <link:definition>2432417 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GuaranteesandIndemnifications" roleURI="http://www.chegg.com/role/GuaranteesandIndemnifications">
        <link:definition>2133109 - Disclosure - Guarantees and Indemnifications</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity" roleURI="http://www.chegg.com/role/StockholdersEquity">
        <link:definition>2134110 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityTables" roleURI="http://www.chegg.com/role/StockholdersEquityTables">
        <link:definition>2335307 - Disclosure - Stockholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityEquityOfferingDetails" roleURI="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails">
        <link:definition>2436418 - Disclosure - Stockholders' Equity - Equity Offering (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquitySecuritiesRepurchaseProgramDetails" roleURI="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails">
        <link:definition>2437419 - Disclosure - Stockholders' Equity - Securities Repurchase Program (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquitySharebasedCompensationExpenseDetails" roleURI="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails">
        <link:definition>2438420 - Disclosure - Stockholders' Equity - Share-based Compensation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails">
        <link:definition>2439421 - Disclosure - Stockholders' Equity - 2021 PSU Grants with Market-Based Conditions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquitySummaryofAssumptionsDetails" roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails">
        <link:definition>2440422 - Disclosure - Stockholders' Equity - Summary of Assumptions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails">
        <link:definition>2441423 - Disclosure - Stockholders' Equity - 2021 PSU Grants with Financial and Strategic Performance Targets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails">
        <link:definition>2442424 - Disclosure - Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StockholdersEquityAdditionalInformationDetails" roleURI="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails">
        <link:definition>2443425 - Disclosure - Stockholders' Equity - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://www.chegg.com/role/RelatedPartyTransactions">
        <link:definition>2144111 - Disclosure - Related-Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsDetails" roleURI="http://www.chegg.com/role/RelatedPartyTransactionsDetails">
        <link:definition>2445426 - Disclosure - Related-Party Transactions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" abstract="false" name="RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="chgg_PayPalHoldingsInc.Member" abstract="true" name="PayPalHoldingsInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_DebtInstrumentDebtConversionConsideration" abstract="false" name="DebtInstrumentDebtConversionConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_OtherIncomeExpense" abstract="false" name="OtherIncomeExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" abstract="true" name="RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_PublicOfferingMember" abstract="true" name="PublicOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:perShareItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" abstract="true" name="A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_PaymentToPurchasesTextbooks" abstract="false" name="PaymentToPurchasesTextbooks" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_ProceedsFromCappedCall" abstract="false" name="ProceedsFromCappedCall" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_A0ConvertibleSeniorNotesDue2026Member" abstract="true" name="A0ConvertibleSeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_ZuoraIncMember" abstract="true" name="ZuoraIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_DepreciationTextbookLibrary" abstract="false" name="DepreciationTextbookLibrary" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_StockIssuedRepaymentForConvertibleSeniorNotes" abstract="false" name="StockIssuedRepaymentForConvertibleSeniorNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" abstract="false" name="DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtInstrumentTransactionDomain" abstract="true" name="DebtInstrumentTransactionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" abstract="false" name="StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_PerformanceSharesMarketBasedConditionsMember" abstract="true" name="PerformanceSharesMarketBasedConditionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" abstract="true" name="A0.25PercentConvertibleSeniorNotesDue2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" abstract="false" name="RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="chgg_RequiredMaterialsMember" abstract="true" name="RequiredMaterialsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_GuaranteesAndIndemnificationsAbstract" abstract="true" name="GuaranteesAndIndemnificationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="chgg_ExchangeOfAggregatePrincipalAmountMember" abstract="true" name="ExchangeOfAggregatePrincipalAmountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" abstract="true" name="TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_SaleOfStockUnderwritingDiscountsAndCommissions" abstract="false" name="SaleOfStockUnderwritingDiscountsAndCommissions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_A2018DataIncidentArbitrationDemandsMember" abstract="true" name="A2018DataIncidentArbitrationDemandsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" abstract="false" name="IncreaseDecreaseInContractWithCustomerAssetsPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_AccountingStandardsUpdate202006Member" abstract="true" name="AccountingStandardsUpdate202006Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" abstract="false" name="RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" abstract="false" name="DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="chgg_ProceedsFromDispositionOfTextbooks" abstract="false" name="ProceedsFromDispositionOfTextbooks" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtCovenantTermsAxis" abstract="true" name="DebtCovenantTermsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="chgg_IncreaseDecreaseInAccountsReceivableNet" abstract="false" name="IncreaseDecreaseInAccountsReceivableNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtInstrumentTransactionAxis" abstract="true" name="DebtInstrumentTransactionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="chgg_CheggServicesMember" abstract="true" name="CheggServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" abstract="false" name="RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" abstract="false" name="ScheduleOfInterestExpenseRecognizedTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="chgg_AdobeSystemsMember" abstract="true" name="AdobeSystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_TextbookLibraryNet" abstract="false" name="TextbookLibraryNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtCovenantTermsDomain" abstract="true" name="DebtCovenantTermsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_TechnologyCompanyMember" abstract="true" name="TechnologyCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" abstract="true" name="VitalSourceTechnologiesLLCVSTVsCheggMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" abstract="true" name="PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_PaymentProcessingFeesMember" abstract="true" name="PaymentProcessingFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_BoardOfDirectorsMemberMember" abstract="true" name="BoardOfDirectorsMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_TextbookLibraryMember" abstract="true" name="TextbookLibraryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" abstract="true" name="A0.125PercentConvertibleSeniorNotesDue2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" abstract="false" name="DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" abstract="false" name="DebtInstrumentDebtConversionEquityInstrumentsIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="chgg_IncreaseDecreaseInContractWithCustomerAssets" abstract="false" name="IncreaseDecreaseInContractWithCustomerAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" abstract="false" name="ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="chgg_TAPDInc.Member" abstract="true" name="TAPDInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_PaymentsForInitialPurchasersDiscount" abstract="false" name="PaymentsForInitialPurchasersDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_SaleOfStockOfferingExpenses" abstract="false" name="SaleOfStockOfferingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" abstract="false" name="AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" abstract="false" name="DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_CappedCallMember" abstract="true" name="CappedCallMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" abstract="false" name="ProceedsFromIssuanceOfEmployeeStockPurchasePlan" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_DebtInstrumentConvertibleShares" abstract="false" name="DebtInstrumentConvertibleShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" abstract="false" name="AvailableForSaleSecuritiesWeightedAverageMaturity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" abstract="false" name="IncreaseDecreaseinContractwithCustomerLiabilityPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_SalePriceIsGreaterOrEqual130PercentMember" abstract="true" name="SalePriceIsGreaterOrEqual130PercentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_DebtInstrumentConvertibleSharesTerminated" abstract="false" name="DebtInstrumentConvertibleSharesTerminated" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="chgg_ForeignEntityMember" abstract="true" name="ForeignEntityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" abstract="false" name="AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" abstract="false" name="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="chgg_BusinessCombinationPercentOwnershipAcquired" abstract="false" name="BusinessCombinationPercentOwnershipAcquired" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_GuaranteesAndIndemnificationsTextBlock" abstract="false" name="GuaranteesAndIndemnificationsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="chgg_IncreaseDecreaseinAccountsReceivablePercent" abstract="false" name="IncreaseDecreaseinAccountsReceivablePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="chgg_TextbookLibraryGainLossNet" abstract="false" name="TextbookLibraryGainLossNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>6
<FILENAME>chgg-20210331_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:7620c16c-72f1-4706-8c7f-035d13f64afa,g:676e331c-5624-4c9f-b3c2-ce75be2bd13e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.chegg.com/role/CoverPage" xlink:type="simple" xlink:href="chgg-20210331.xsd#CoverPage"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CoverPage" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_14c5998f-4031-4b1f-ad4b-f7c283c3da12" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorLongTermNotes_aca0dc89-de71-4ac1-b10a-761283cd76c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorLongTermNotes"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_14c5998f-4031-4b1f-ad4b-f7c283c3da12" xlink:to="loc_us-gaap_SeniorLongTermNotes_aca0dc89-de71-4ac1-b10a-761283cd76c0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_0483c51e-234a-47e9-b68c-33189cddd612" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_14c5998f-4031-4b1f-ad4b-f7c283c3da12" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_0483c51e-234a-47e9-b68c-33189cddd612" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_03dbcaa3-2311-4c22-ba91-fc6b8547f14a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_14c5998f-4031-4b1f-ad4b-f7c283c3da12" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_03dbcaa3-2311-4c22-ba91-fc6b8547f14a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_5f8554c4-ff63-4e98-be9d-7499f8ddd459" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_95a622c3-fb03-4377-a2fa-dc4fcfffaaaf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_5f8554c4-ff63-4e98-be9d-7499f8ddd459" xlink:to="loc_us-gaap_PreferredStockValue_95a622c3-fb03-4377-a2fa-dc4fcfffaaaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_83835588-b68a-4f05-b9c1-8f841364a4b9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_5f8554c4-ff63-4e98-be9d-7499f8ddd459" xlink:to="loc_us-gaap_CommonStockValue_83835588-b68a-4f05-b9c1-8f841364a4b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_30da9df6-d357-448d-9fc1-bd57e3aea2f9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_5f8554c4-ff63-4e98-be9d-7499f8ddd459" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_30da9df6-d357-448d-9fc1-bd57e3aea2f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_88f66606-34a6-4271-9b0c-436011692541" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_5f8554c4-ff63-4e98-be9d-7499f8ddd459" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_88f66606-34a6-4271-9b0c-436011692541" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_3536d9ad-7ff5-4d92-b8ab-5e5fb165064a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_5f8554c4-ff63-4e98-be9d-7499f8ddd459" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_3536d9ad-7ff5-4d92-b8ab-5e5fb165064a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_c1e54298-a8d5-43d8-8583-6daa4a9fae2e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_ee7efa82-0312-4049-bea3-d69dc2e2eb28" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c1e54298-a8d5-43d8-8583-6daa4a9fae2e" xlink:to="loc_us-gaap_Liabilities_ee7efa82-0312-4049-bea3-d69dc2e2eb28" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_72e48ee9-7d05-4cc8-b7ad-8c7bd232e188" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c1e54298-a8d5-43d8-8583-6daa4a9fae2e" xlink:to="loc_us-gaap_CommitmentsAndContingencies_72e48ee9-7d05-4cc8-b7ad-8c7bd232e188" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_4ea642a8-bbb3-4911-b1e2-02cfab7ae0a2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_c1e54298-a8d5-43d8-8583-6daa4a9fae2e" xlink:to="loc_us-gaap_StockholdersEquity_4ea642a8-bbb3-4911-b1e2-02cfab7ae0a2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_8c40e605-50b5-49f2-9a7d-ac1580cd1d16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_e2798627-52cf-45ca-bfce-0f23df475c0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8c40e605-50b5-49f2-9a7d-ac1580cd1d16" xlink:to="loc_us-gaap_AccountsPayableCurrent_e2798627-52cf-45ca-bfce-0f23df475c0a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesCurrent_e9010466-e521-432e-959c-e6d27d00dbc3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8c40e605-50b5-49f2-9a7d-ac1580cd1d16" xlink:to="loc_us-gaap_SeniorNotesCurrent_e9010466-e521-432e-959c-e6d27d00dbc3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_a06d3c23-4373-4564-999e-c6790341ad89" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8c40e605-50b5-49f2-9a7d-ac1580cd1d16" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_a06d3c23-4373-4564-999e-c6790341ad89" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_107742f9-95f0-44eb-90c2-e05a668791e9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_8c40e605-50b5-49f2-9a7d-ac1580cd1d16" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_107742f9-95f0-44eb-90c2-e05a668791e9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_326b8de9-4a93-44ae-a646-6577bdfe839e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_fd5baeb6-a5d3-4e7b-bbb9-e2883827149d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_326b8de9-4a93-44ae-a646-6577bdfe839e" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_fd5baeb6-a5d3-4e7b-bbb9-e2883827149d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_af312794-e30b-45e0-a697-71f286c970c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_326b8de9-4a93-44ae-a646-6577bdfe839e" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_af312794-e30b-45e0-a697-71f286c970c5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_eb644655-9576-4444-9091-2bd6154408fd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_326b8de9-4a93-44ae-a646-6577bdfe839e" xlink:to="loc_us-gaap_OtherAssetsCurrent_eb644655-9576-4444-9091-2bd6154408fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_926c4554-e5cd-43a5-a149-318222f6d888" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_326b8de9-4a93-44ae-a646-6577bdfe839e" xlink:to="loc_us-gaap_ShortTermInvestments_926c4554-e5cd-43a5-a149-318222f6d888" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_993d4ab4-056e-4b1c-80b7-73ea635b3d29" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_326b8de9-4a93-44ae-a646-6577bdfe839e" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_993d4ab4-056e-4b1c-80b7-73ea635b3d29" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_0b6e8f1a-5e0d-4fd8-826f-bd20f2a9fc10" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_AssetsCurrent_0b6e8f1a-5e0d-4fd8-826f-bd20f2a9fc10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_1b687988-271a-4b37-9465-809a11be8712" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_1b687988-271a-4b37-9465-809a11be8712" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_5f573966-5ece-4179-975f-c4fb48f85975" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_Goodwill_5f573966-5ece-4179-975f-c4fb48f85975" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1a1090e5-e78f-4841-93da-405020a02738" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1a1090e5-e78f-4841-93da-405020a02738" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_a8f122fd-4e3f-4004-9599-74d13350fef4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_a8f122fd-4e3f-4004-9599-74d13350fef4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_3c102d78-7948-4db6-9422-c1852c5077b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_LongTermInvestments_3c102d78-7948-4db6-9422-c1852c5077b1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_39946608-44e7-47a5-b3b9-6855eef16f30" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_39946608-44e7-47a5-b3b9-6855eef16f30" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryNet_b08a32ff-69a4-4379-bc25-cf3cd649c432" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryNet"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_de4c884c-4d08-4b8c-8f98-6e3169fc00e4" xlink:to="loc_chgg_TextbookLibraryNet_b08a32ff-69a4-4379-bc25-cf3cd649c432" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_a2d63441-d8ab-4316-a873-2cbf688a7dde" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_ea182b4b-0728-48e9-907f-c37f64da86ee" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_a2d63441-d8ab-4316-a873-2cbf688a7dde" xlink:to="loc_us-gaap_LiabilitiesCurrent_ea182b4b-0728-48e9-907f-c37f64da86ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_4c5e8707-ac5d-4c5e-9a68-b8f9e82333f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_a2d63441-d8ab-4316-a873-2cbf688a7dde" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_4c5e8707-ac5d-4c5e-9a68-b8f9e82333f0" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_d5372be8-ab6b-4cfc-aa28-e77caf9b6210" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_d0272392-c628-49ad-a5e2-dcdd3dd9f56b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GrossProfit"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_d5372be8-ab6b-4cfc-aa28-e77caf9b6210" xlink:to="loc_us-gaap_GrossProfit_d0272392-c628-49ad-a5e2-dcdd3dd9f56b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_47e8a227-b653-4a00-ab2f-090c1a7c4fa9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_d5372be8-ab6b-4cfc-aa28-e77caf9b6210" xlink:to="loc_us-gaap_OperatingExpenses_47e8a227-b653-4a00-ab2f-090c1a7c4fa9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_4b2160b7-8354-488d-a3ab-0483ecf245ea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_0016affd-378f-44db-9133-059372b1d701" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_4b2160b7-8354-488d-a3ab-0483ecf245ea" xlink:to="loc_us-gaap_OperatingIncomeLoss_0016affd-378f-44db-9133-059372b1d701" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_8cf90bcc-9c94-469f-b43a-d71e8bbf60ce" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_4b2160b7-8354-488d-a3ab-0483ecf245ea" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_8cf90bcc-9c94-469f-b43a-d71e8bbf60ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_6b854f2c-e51b-4e10-8838-0a4a583cedd0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_a49466ec-014e-4a72-a69e-c18a4c27cff9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_6b854f2c-e51b-4e10-8838-0a4a583cedd0" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_a49466ec-014e-4a72-a69e-c18a4c27cff9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_2304beef-a8ce-4131-801b-6acc23de9d6d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_6b854f2c-e51b-4e10-8838-0a4a583cedd0" xlink:to="loc_us-gaap_SellingAndMarketingExpense_2304beef-a8ce-4131-801b-6acc23de9d6d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_6906b2a1-c251-4391-82eb-bf5f6ed4c9ab" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingExpenses_6b854f2c-e51b-4e10-8838-0a4a583cedd0" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_6906b2a1-c251-4391-82eb-bf5f6ed4c9ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_8192b41d-12ae-4561-acc6-20719fc52d70" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_7021d486-92c3-497d-b188-ef3b68943490" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_8192b41d-12ae-4561-acc6-20719fc52d70" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_7021d486-92c3-497d-b188-ef3b68943490" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_d250f3e9-168d-45fc-a70d-950daddedb1b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_8192b41d-12ae-4561-acc6-20719fc52d70" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_d250f3e9-168d-45fc-a70d-950daddedb1b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_a8ff6581-c96e-4c6e-86b7-598eefd76392" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_f6367e97-9f1a-482f-8ebf-ee767707172c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a8ff6581-c96e-4c6e-86b7-598eefd76392" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_f6367e97-9f1a-482f-8ebf-ee767707172c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_268a8275-96f4-4c8a-8f56-31e4913eafec" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a8ff6581-c96e-4c6e-86b7-598eefd76392" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_268a8275-96f4-4c8a-8f56-31e4913eafec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_8a040104-b26c-4e44-8a71-71b673734cd5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GrossProfit"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_cf45b6e0-cc79-48ee-8ef5-0794cdde2724" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfRevenue"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_8a040104-b26c-4e44-8a71-71b673734cd5" xlink:to="loc_us-gaap_CostOfRevenue_cf45b6e0-cc79-48ee-8ef5-0794cdde2724" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_002bdcb4-28c0-4ced-b5c2-759880ec4a5a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_8a040104-b26c-4e44-8a71-71b673734cd5" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_002bdcb4-28c0-4ced-b5c2-759880ec4a5a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a63a22e8-ce8b-44dc-9931-fbf308717406" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_c87a871e-eaa5-41ce-b0a6-f921e656d963" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a63a22e8-ce8b-44dc-9931-fbf308717406" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_c87a871e-eaa5-41ce-b0a6-f921e656d963" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_7e27c8dd-aa9b-4371-a0f9-9bd1ad97195a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a63a22e8-ce8b-44dc-9931-fbf308717406" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_7e27c8dd-aa9b-4371-a0f9-9bd1ad97195a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_8ab9376a-81ca-4590-bb3a-552210128282" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a3f338f9-f1fb-431b-a697-52cc0206ee96" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_8ab9376a-81ca-4590-bb3a-552210128282" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_a3f338f9-f1fb-431b-a697-52cc0206ee96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b4fde678-6b06-42a1-a9c7-da338e13795c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_8ab9376a-81ca-4590-bb3a-552210128282" xlink:to="loc_us-gaap_NetIncomeLoss_b4fde678-6b06-42a1-a9c7-da338e13795c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5179da2a-112e-486d-835d-cd65d8eb57c8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ad5bc5c9-316b-4817-99d5-cfc868b7f832" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5179da2a-112e-486d-835d-cd65d8eb57c8" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_ad5bc5c9-316b-4817-99d5-cfc868b7f832" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_d02bce5d-0b24-4a9b-9e01-2c4b646b36b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5179da2a-112e-486d-835d-cd65d8eb57c8" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_d02bce5d-0b24-4a9b-9e01-2c4b646b36b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_89eedf5c-e7bb-4325-9844-d31551623d49" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5179da2a-112e-486d-835d-cd65d8eb57c8" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_89eedf5c-e7bb-4325-9844-d31551623d49" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_4d78df5d-57d6-4646-972f-4227454f1f5b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_NetIncomeLoss_4d78df5d-57d6-4646-972f-4227454f1f5b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_b52c7249-0b7d-4f9a-ab73-0f57b033c04f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_b52c7249-0b7d-4f9a-ab73-0f57b033c04f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryGainLossNet_89605f85-5fa3-4d21-8fee-18ef86f009e2" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryGainLossNet"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_chgg_TextbookLibraryGainLossNet_89605f85-5fa3-4d21-8fee-18ef86f009e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_26a81816-5e48-4850-8378-504e6c0f08a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_26a81816-5e48-4850-8378-504e6c0f08a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_161cbea1-68b2-40b2-be9f-13e884b6d746" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_161cbea1-68b2-40b2-be9f-13e884b6d746" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_15ea8383-38a8-46f8-a809-e31cd7dfd6ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_15ea8383-38a8-46f8-a809-e31cd7dfd6ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DepreciationTextbookLibrary_1836c8ce-c295-4ff0-96b5-854d1fe226d8" xlink:href="chgg-20210331.xsd#chgg_DepreciationTextbookLibrary"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_chgg_DepreciationTextbookLibrary_1836c8ce-c295-4ff0-96b5-854d1fe226d8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_194ba8a6-37ea-422b-bce5-e431cd54d1e7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_194ba8a6-37ea-422b-bce5-e431cd54d1e7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpensesOther_9668f85f-91d3-411f-b377-fb1c9f58d458" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpensesOther"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpensesOther_9668f85f-91d3-411f-b377-fb1c9f58d458" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_32d5eace-380d-4056-96ed-518b3a625cad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_32d5eace-380d-4056-96ed-518b3a625cad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_e7f4602c-ebe3-44c8-a71b-9924a2217e26" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_e7f4602c-ebe3-44c8-a71b-9924a2217e26" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_45c92d55-650b-41f3-bce6-8af9fe5684cb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_45c92d55-650b-41f3-bce6-8af9fe5684cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_a4ba69a8-4315-45ba-8c38-e1e92370246b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_a4ba69a8-4315-45ba-8c38-e1e92370246b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_8f3fb34b-3685-4671-a1e1-e6299704498f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseCost"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_OperatingLeaseCost_8f3fb34b-3685-4671-a1e1-e6299704498f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_36434a03-b8fb-4fee-a7d5-f21ed54b28ea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_36434a03-b8fb-4fee-a7d5-f21ed54b28ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_112714df-3707-4ab9-a90b-c21374eaa792" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_112714df-3707-4ab9-a90b-c21374eaa792" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_fafa4763-0083-42c8-8e2a-1e6f355419c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_ShareBasedCompensation_fafa4763-0083-42c8-8e2a-1e6f355419c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization_bbcbe007-371e-4937-be6c-823918fff8d6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherDepreciationAndAmortization"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_OtherDepreciationAndAmortization_bbcbe007-371e-4937-be6c-823918fff8d6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_a5e55b9e-511c-4d9a-a1ae-bff35fd989c8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:calculationArc order="19" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_373aee06-5dc9-4c3f-bd79-d61b0208d8f6" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_a5e55b9e-511c-4d9a-a1ae-bff35fd989c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_c5d02f0d-ef3c-45b2-9285-37af216d7dc2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_1eb24f80-39c3-4456-a2b7-856de3ea4a58" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_c5d02f0d-ef3c-45b2-9285-37af216d7dc2" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_1eb24f80-39c3-4456-a2b7-856de3ea4a58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_1de47446-d4fe-4b65-9924-e678600edb58" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_c5d02f0d-ef3c-45b2-9285-37af216d7dc2" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_1de47446-d4fe-4b65-9924-e678600edb58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_cd38a3f1-6e2b-4f37-8069-1a479ba3180e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_c5d02f0d-ef3c-45b2-9285-37af216d7dc2" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_cd38a3f1-6e2b-4f37-8069-1a479ba3180e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_b59e11f4-774a-4413-bcdf-49776c7acfbb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_b59e11f4-774a-4413-bcdf-49776c7acfbb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromDispositionOfTextbooks_dd232f78-d54a-4148-8155-ca1d386eed7c" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromDispositionOfTextbooks"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_chgg_ProceedsFromDispositionOfTextbooks_dd232f78-d54a-4148-8155-ca1d386eed7c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_89dd0b13-9806-4699-a922-7c38b6d3424c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_89dd0b13-9806-4699-a922-7c38b6d3424c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_473d6be0-4d31-465d-8f9e-0518c13fd780" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_473d6be0-4d31-465d-8f9e-0518c13fd780" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_c87d8052-9551-44ec-95fb-2408770c8c5c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_c87d8052-9551-44ec-95fb-2408770c8c5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentToPurchasesTextbooks_dcefb16e-1514-49ef-b733-f3749f7c9022" xlink:href="chgg-20210331.xsd#chgg_PaymentToPurchasesTextbooks"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_chgg_PaymentToPurchasesTextbooks_dcefb16e-1514-49ef-b733-f3749f7c9022" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_a94d4ea3-043b-4bda-bb66-78fcc31c2546" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_a94d4ea3-043b-4bda-bb66-78fcc31c2546" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_081c6fb7-7ea4-4866-abfc-39deb7f53644" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_66901f73-040c-48b1-9625-8d12400c846b" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_081c6fb7-7ea4-4866-abfc-39deb7f53644" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8999c111-a4cd-4994-b1c8-50e87bc1ba10" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_07bc30a7-2f94-45b9-b8d9-fea15dbfd860" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8999c111-a4cd-4994-b1c8-50e87bc1ba10" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_07bc30a7-2f94-45b9-b8d9-fea15dbfd860" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt_aaa301e0-b842-4221-ba53-364b9839b984" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8999c111-a4cd-4994-b1c8-50e87bc1ba10" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt_aaa301e0-b842-4221-ba53-364b9839b984" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_4170dfb1-8d64-4e82-b522-b3c8cb709b84" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8999c111-a4cd-4994-b1c8-50e87bc1ba10" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_4170dfb1-8d64-4e82-b522-b3c8cb709b84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_ec4b61c4-a9b1-4bd8-840f-ac10112b2fe2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8999c111-a4cd-4994-b1c8-50e87bc1ba10" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_ec4b61c4-a9b1-4bd8-840f-ac10112b2fe2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_574e3623-ed24-47c6-8212-2e29b3065164" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8999c111-a4cd-4994-b1c8-50e87bc1ba10" xlink:to="loc_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_574e3623-ed24-47c6-8212-2e29b3065164" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentation" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentation"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentation" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationPolicies"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationOtherIncomeExpensesDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_981016ab-e1c9-4d76-a70c-5953930d9368" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_79ce7ad4-bf2d-45f0-98b1-e098216b5f64" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_981016ab-e1c9-4d76-a70c-5953930d9368" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_79ce7ad4-bf2d-45f0-98b1-e098216b5f64" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_418d0176-d284-4128-9768-8eb5cef24fc0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_981016ab-e1c9-4d76-a70c-5953930d9368" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_418d0176-d284-4128-9768-8eb5cef24fc0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_OtherIncomeExpense_a6debd51-b574-4b5a-b478-34c927dd2093" xlink:href="chgg-20210331.xsd#chgg_OtherIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_981016ab-e1c9-4d76-a70c-5953930d9368" xlink:to="loc_chgg_OtherIncomeExpense_a6debd51-b574-4b5a-b478-34c927dd2093" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_6e3ab3df-43b2-43d4-8101-cbd3421857dd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_981016ab-e1c9-4d76-a70c-5953930d9368" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_6e3ab3df-43b2-43d4-8101-cbd3421857dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_61af821b-ce28-480e-88f7-06817d8e0746" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_981016ab-e1c9-4d76-a70c-5953930d9368" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_61af821b-ce28-480e-88f7-06817d8e0746" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationConvertibleNotesDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/Revenues" xlink:type="simple" xlink:href="chgg-20210331.xsd#Revenues"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/Revenues" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RevenuesTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#RevenuesTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/RevenuesTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RevenuesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#RevenuesDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/RevenuesDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShare" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShare"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/NetLossPerShare" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/NetLossPerShareTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestments" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestments"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestments" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4be59a86-ada9-437f-9801-66eabc990861" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_3ed46aff-155c-4aaf-940c-31b625db2e94" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4be59a86-ada9-437f-9801-66eabc990861" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_3ed46aff-155c-4aaf-940c-31b625db2e94" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_29683375-c176-419b-90e1-41b5b515e82f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4be59a86-ada9-437f-9801-66eabc990861" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_29683375-c176-419b-90e1-41b5b515e82f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_27374ae5-b0b7-4832-b088-2edcb8bcea3d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4be59a86-ada9-437f-9801-66eabc990861" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_27374ae5-b0b7-4832-b088-2edcb8bcea3d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsContractualMaturityDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3f810662-82c0-487d-ba5a-116af48f9771" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_9ba27cf6-b083-4d32-bedc-4ed595276491" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3f810662-82c0-487d-ba5a-116af48f9771" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_9ba27cf6-b083-4d32-bedc-4ed595276491" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_30d8426e-be5b-463b-8a99-dd5417eb3081" xlink:href="chgg-20210331.xsd#chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3f810662-82c0-487d-ba5a-116af48f9771" xlink:to="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_30d8426e-be5b-463b-8a99-dd5417eb3081" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_637d9986-92c2-40dc-a8cc-4c3311aee7eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_3f810662-82c0-487d-ba5a-116af48f9771" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_637d9986-92c2-40dc-a8cc-4c3311aee7eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_b603b8a6-ce31-4e12-b0c5-133fdb11f19b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_ae5708d8-3186-4aea-b919-c0730b0b8573" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_b603b8a6-ce31-4e12-b0c5-133fdb11f19b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_ae5708d8-3186-4aea-b919-c0730b0b8573" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_9159780c-a31a-4aa4-a71e-fef2034a81ce" xlink:href="chgg-20210331.xsd#chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_b603b8a6-ce31-4e12-b0c5-133fdb11f19b" xlink:to="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_9159780c-a31a-4aa4-a71e-fef2034a81ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_049f653a-4a5c-4888-96d5-ef0e0a1f3959" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_b603b8a6-ce31-4e12-b0c5-133fdb11f19b" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_049f653a-4a5c-4888-96d5-ef0e0a1f3959" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurement" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurement"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/FairValueMeasurement" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/FairValueMeasurementTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementFinancialInstrumentsDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_31f23e8a-d8b0-421b-af4e-b2f84eea7d78" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_350f5703-a521-408f-b301-78afcf2d4df1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_31f23e8a-d8b0-421b-af4e-b2f84eea7d78" xlink:to="loc_us-gaap_LongTermInvestments_350f5703-a521-408f-b301-78afcf2d4df1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_4d1e4f28-ff82-4c80-bd78-25adee1c353f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_31f23e8a-d8b0-421b-af4e-b2f84eea7d78" xlink:to="loc_us-gaap_ShortTermInvestments_4d1e4f28-ff82-4c80-bd78-25adee1c353f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_667ae30a-45b4-47d8-8f27-796fcb090bf8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_31f23e8a-d8b0-421b-af4e-b2f84eea7d78" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_667ae30a-45b4-47d8-8f27-796fcb090bf8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementDebtDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementDebtDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/FairValueMeasurementDebtDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/Acquisitions" xlink:type="simple" xlink:href="chgg-20210331.xsd#Acquisitions"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/Acquisitions" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/AcquisitionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#AcquisitionsDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/AcquisitionsDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotes" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotes"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotes" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_462a021e-a8e2-4226-98f4-1a98a7acde77" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_3bc4357a-3368-4920-91c5-a941299d4108" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_462a021e-a8e2-4226-98f4-1a98a7acde77" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_3bc4357a-3368-4920-91c5-a941299d4108" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentsForInitialPurchasersDiscount_a55af174-c6d5-442c-bb45-e446852a4676" xlink:href="chgg-20210331.xsd#chgg_PaymentsForInitialPurchasersDiscount"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_462a021e-a8e2-4226-98f4-1a98a7acde77" xlink:to="loc_chgg_PaymentsForInitialPurchasersDiscount_a55af174-c6d5-442c-bb45-e446852a4676" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_6417c00a-34b8-4290-82ba-a8c926e241da" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_462a021e-a8e2-4226-98f4-1a98a7acde77" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_6417c00a-34b8-4290-82ba-a8c926e241da" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesNetCarryingAmountDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_a18ff0d8-2e08-417e-94dd-bf38526d5b90" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_bff966b5-6588-4079-a8b8-c50dbdee64f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtFairValue_a18ff0d8-2e08-417e-94dd-bf38526d5b90" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_bff966b5-6588-4079-a8b8-c50dbdee64f6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_f4efb563-44e2-4815-a904-d80dc1a6d644" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtFairValue_a18ff0d8-2e08-417e-94dd-bf38526d5b90" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_f4efb563-44e2-4815-a904-d80dc1a6d644" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_ed710b52-9d99-41a5-b468-54e0795f2c1a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtFairValue_a18ff0d8-2e08-417e-94dd-bf38526d5b90" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_ed710b52-9d99-41a5-b468-54e0795f2c1a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesInterestExpenseRecognizedDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_2e4ea498-4f42-4055-b492-d4a5640d083d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_3c86f9f3-d201-4f64-96f1-6e8063db12cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_2e4ea498-4f42-4055-b492-d4a5640d083d" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_3c86f9f3-d201-4f64-96f1-6e8063db12cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_ee80fcb9-32d5-46d1-bc08-6ea2f54991e6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_2e4ea498-4f42-4055-b492-d4a5640d083d" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium_ee80fcb9-32d5-46d1-bc08-6ea2f54991e6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_bfbb37ce-d39a-4694-8817-15b78f077b68" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InterestExpenseDebt_2e4ea498-4f42-4055-b492-d4a5640d083d" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_bfbb37ce-d39a-4694-8817-15b78f077b68" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesCappedCallDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="chgg-20210331.xsd#CommitmentsandContingencies"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CommitmentsandContingencies" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CommitmentsandContingenciesDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/CommitmentsandContingenciesDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/GuaranteesandIndemnifications" xlink:type="simple" xlink:href="chgg-20210331.xsd#GuaranteesandIndemnifications"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/GuaranteesandIndemnifications" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquity" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityTables"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquityTables" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityEquityOfferingDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySecuritiesRepurchaseProgramDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySharebasedCompensationExpenseDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySummaryofAssumptionsDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityAdditionalInformationDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RelatedPartyTransactions" xlink:type="simple" xlink:href="chgg-20210331.xsd#RelatedPartyTransactions"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/RelatedPartyTransactions" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#RelatedPartyTransactionsDetails"/>
  <link:calculationLink xlink:role="http://www.chegg.com/role/RelatedPartyTransactionsDetails" xlink:type="extended"/>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>7
<FILENAME>chgg-20210331_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:7620c16c-72f1-4706-8c7f-035d13f64afa,g:676e331c-5624-4c9f-b3c2-ce75be2bd13e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CoverPage" xlink:type="simple" xlink:href="chgg-20210331.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CoverPage" xlink:type="extended" id="id05dbe518deb47a49fc684d9322210de_CoverPage"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended" id="i07ee65c920674b29beae5d6b8d513d90_CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended" id="iaa41863636ee4e3789951480d6975f6b_CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended" id="i136a58c6673845118e1d3e8fa5789a83_CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="extended" id="ic3d72009a5ed4d5780c18a7f34734212_CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended" id="i6228a6cf1f3640e18ffa9a98494bfe24_CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_667f48a4-4e94-49d3-ae32-23d1eb0cd85c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_667f48a4-4e94-49d3-ae32-23d1eb0cd85c" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_bf7a2ce1-dd88-4abb-9876-67f60c0ad5fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_bf7a2ce1-dd88-4abb-9876-67f60c0ad5fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_7bcfba35-dc26-4c7d-a41b-128497ea43cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockholdersEquity_7bcfba35-dc26-4c7d-a41b-128497ea43cc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingStandardsUpdateExtensibleList_337b5778-73a7-4398-a816-eac13674a170" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountingStandardsUpdateExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_AccountingStandardsUpdateExtensibleList_337b5778-73a7-4398-a816-eac13674a170" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_3964bc68-c2c0-4d73-94a8-bcd4225cad55" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_3964bc68-c2c0-4d73-94a8-bcd4225cad55" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_cfc56646-fe83-4595-a007-abd8c37b05b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_cfc56646-fe83-4595-a007-abd8c37b05b4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt_140e6731-5231-454f-8d3e-780e1077fd3e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt_140e6731-5231-454f-8d3e-780e1077fd3e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2c4d915c-0f20-4e2f-8d71-29b7e291c738" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2c4d915c-0f20-4e2f-8d71-29b7e291c738" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_cda3871a-be08-4139-913b-93ea7b8fbc2f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_cda3871a-be08-4139-913b-93ea7b8fbc2f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_83b27d55-61eb-4313-9149-433c3c1bf985" xlink:href="chgg-20210331.xsd#chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_83b27d55-61eb-4313-9149-433c3c1bf985" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_8b161561-3894-473c-bab3-1a1a9bda201a" xlink:href="chgg-20210331.xsd#chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_8b161561-3894-473c-bab3-1a1a9bda201a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_368a89d6-6865-4efc-b842-f7ac07c3a3a2" xlink:href="chgg-20210331.xsd#chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_368a89d6-6865-4efc-b842-f7ac07c3a3a2" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_9c331c37-287c-4f0d-bb09-8381c92620e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_9c331c37-287c-4f0d-bb09-8381c92620e1" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_51af6368-f9c3-4b5a-a573-f1a5933a596b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_51af6368-f9c3-4b5a-a573-f1a5933a596b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_ae42693f-caa5-4fb9-a51d-5ca7067595e3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_ae42693f-caa5-4fb9-a51d-5ca7067595e3" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_723c4388-0aa2-489d-b83f-d2d864e7024b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_723c4388-0aa2-489d-b83f-d2d864e7024b" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_3283a58e-f708-4775-ad2a-3be4fb9cb746" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_NetIncomeLoss_3283a58e-f708-4775-ad2a-3be4fb9cb746" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_b9fb373e-d5bd-4d9c-970f-25fef04feb7d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_d1d2b729-4b23-426c-be88-b144a0f2cdcb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_667f48a4-4e94-49d3-ae32-23d1eb0cd85c" xlink:to="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:to="loc_us-gaap_EquityComponentDomain_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:to="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_2804c385-ffbf-42a2-902e-4cc840013400" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_CommonStockMember_2804c385-ffbf-42a2-902e-4cc840013400" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_99c9de75-df8c-4e38-b868-1d2ca73fdedf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_99c9de75-df8c-4e38-b868-1d2ca73fdedf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_c1976bd2-acb1-42fb-9960-ecc9a589c645" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_c1976bd2-acb1-42fb-9960-ecc9a589c645" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_c1e28666-9540-49e2-814b-1b3232dcaa76" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_RetainedEarningsMember_c1e28666-9540-49e2-814b-1b3232dcaa76" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_16162027-be2c-47eb-afd6-f2951b8b58f9_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_16162027-be2c-47eb-afd6-f2951b8b58f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_2ad2a232-54c8-49fd-b044-5428b8f6df57" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_2ad2a232-54c8-49fd-b044-5428b8f6df57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_7a536956-8104-4fd6-991f-d13f85ba7980" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_2ad2a232-54c8-49fd-b044-5428b8f6df57" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_7a536956-8104-4fd6-991f-d13f85ba7980" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_1bc9262b-11df-4f17-bc1c-862ae4601f1b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:to="loc_us-gaap_TypeOfAdoptionMember_1bc9262b-11df-4f17-bc1c-862ae4601f1b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_32c27df3-7fcf-4eff-ae89-d5a20868d3c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:to="loc_us-gaap_TypeOfAdoptionMember_32c27df3-7fcf-4eff-ae89-d5a20868d3c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AccountingStandardsUpdate202006Member_58008319-780e-414e-a828-c38881123395" xlink:href="chgg-20210331.xsd#chgg_AccountingStandardsUpdate202006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfAdoptionMember_32c27df3-7fcf-4eff-ae89-d5a20868d3c9" xlink:to="loc_chgg_AccountingStandardsUpdate202006Member_58008319-780e-414e-a828-c38881123395" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended" id="i5d9d4d6bd6f64671b5fad676576910c8_CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentation" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentation"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentation" xlink:type="extended" id="if79e7c070ec24f7c9826e1e6b3b52154_BackgroundandBasisofPresentation"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationTables" xlink:type="extended" id="ic302a4bde527455baf9918bedabbc182_BackgroundandBasisofPresentationTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationPolicies"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies" xlink:type="extended" id="icca5e4bc63cd4a67aa1ddf665c3cbdc8_BackgroundandBasisofPresentationPolicies"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails" xlink:type="extended" id="ie2631e85638e45bb9ceaff76f308d806_BackgroundandBasisofPresentationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_b4e208a8-9496-452b-b931-53115f773ccb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_b4e208a8-9496-452b-b931-53115f773ccb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_2c7097bb-a4d4-4f44-893b-486965836d8a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_2c7097bb-a4d4-4f44-893b-486965836d8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_ea366a90-eca6-44e0-a746-e0dc419ac64f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_StockholdersEquity_ea366a90-eca6-44e0-a746-e0dc419ac64f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_2c9d1616-3472-4a96-aab8-e99aec620033_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:to="loc_srt_RestatementDomain_2c9d1616-3472-4a96-aab8-e99aec620033_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_19c1f40a-00e7-44f3-82e3-3ec19da2ae2b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:to="loc_srt_RestatementDomain_19c1f40a-00e7-44f3-82e3-3ec19da2ae2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember_58a42d41-5ad7-49fa-a419-c1b197d9129b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RevisionOfPriorPeriodReclassificationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_19c1f40a-00e7-44f3-82e3-3ec19da2ae2b" xlink:to="loc_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember_58a42d41-5ad7-49fa-a419-c1b197d9129b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_383f2644-8cae-498d-bfcb-b34b99b51885_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_383f2644-8cae-498d-bfcb-b34b99b51885_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_eaaf240c-5196-4493-a8e3-8d329f97f5f4" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_eaaf240c-5196-4493-a8e3-8d329f97f5f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_cb87fb69-b41c-4b8a-ab73-c1856c419358" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_eaaf240c-5196-4493-a8e3-8d329f97f5f4" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_cb87fb69-b41c-4b8a-ab73-c1856c419358" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_a44dd4ad-463b-4533-bd1b-6b689373ccdc_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:to="loc_us-gaap_TypeOfAdoptionMember_a44dd4ad-463b-4533-bd1b-6b689373ccdc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_0c08eb8d-7294-4ba7-b579-ac6e9f635c61" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:to="loc_us-gaap_TypeOfAdoptionMember_0c08eb8d-7294-4ba7-b579-ac6e9f635c61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AccountingStandardsUpdate202006Member_993ff964-da16-45eb-8ee2-4fa030e4a665" xlink:href="chgg-20210331.xsd#chgg_AccountingStandardsUpdate202006Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfAdoptionMember_0c08eb8d-7294-4ba7-b579-ac6e9f635c61" xlink:to="loc_chgg_AccountingStandardsUpdate202006Member_993ff964-da16-45eb-8ee2-4fa030e4a665" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_29c244ac-3f13-4fac-99af-62834b8069e7_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:to="loc_us-gaap_EquityComponentDomain_29c244ac-3f13-4fac-99af-62834b8069e7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:to="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_e9fc0de7-5473-4d61-993e-c2ee21a2331a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_e9fc0de7-5473-4d61-993e-c2ee21a2331a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_64647e48-ea50-48f3-b91b-ef1a1d79b691" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:to="loc_us-gaap_RetainedEarningsMember_64647e48-ea50-48f3-b91b-ef1a1d79b691" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_a4aeb8a5-30e7-4a3c-a326-2ba418e41026_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_a4aeb8a5-30e7-4a3c-a326-2ba418e41026_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f33d4d2c-ef68-4645-8289-f8c2e8cd363b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f33d4d2c-ef68-4645-8289-f8c2e8cd363b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_d83188a0-c4bd-4fe9-a027-2d683213ce10" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_f33d4d2c-ef68-4645-8289-f8c2e8cd363b" xlink:to="loc_us-gaap_SeniorNotesMember_d83188a0-c4bd-4fe9-a027-2d683213ce10" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationOtherIncomeExpensesDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails" xlink:type="extended" id="i09d811e61bd24cf6adf63525c78aeef1_BackgroundandBasisofPresentationOtherIncomeExpensesDetails"/>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationConvertibleNotesDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails" xlink:type="extended" id="ia1fd2361cae34cd780eb6e5717122df8_BackgroundandBasisofPresentationConvertibleNotesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_221eee2a-14d2-4da3-877f-a715e16daf14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_221eee2a-14d2-4da3-877f-a715e16daf14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_74e1bf70-c11a-45cc-92ac-51981fb86102" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_74e1bf70-c11a-45cc-92ac-51981fb86102" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_3449f604-1f25-483f-a549-f2c1d4e2a3ba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_3449f604-1f25-483f-a549-f2c1d4e2a3ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:to="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4ca005b7-7f9e-49cc-8b1c-316046ce205e" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4ca005b7-7f9e-49cc-8b1c-316046ce205e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_be7c7052-1ed7-412a-8a86-78ffb290635b" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_be7c7052-1ed7-412a-8a86-78ffb290635b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_1cb72656-4730-43f4-8585-0262c8c03faa" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_1cb72656-4730-43f4-8585-0262c8c03faa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_23291898-b97c-4e7b-9a1f-f3fd65479149_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_23291898-b97c-4e7b-9a1f-f3fd65479149_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_31d9a08c-e53d-4968-93e4-2c78bfc2c42b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_31d9a08c-e53d-4968-93e4-2c78bfc2c42b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_2a045478-c580-40fa-b266-466d7306bf32" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_31d9a08c-e53d-4968-93e4-2c78bfc2c42b" xlink:to="loc_us-gaap_SeniorNotesMember_2a045478-c580-40fa-b266-466d7306bf32" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/Revenues" xlink:type="simple" xlink:href="chgg-20210331.xsd#Revenues"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/Revenues" xlink:type="extended" id="i28aa4db70c4d4de787ecc1d0e2bf534c_Revenues"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RevenuesTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#RevenuesTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/RevenuesTables" xlink:type="extended" id="ibcb8bb6c38964948bd37fd7488b4c6e7_RevenuesTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RevenuesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#RevenuesDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/RevenuesDetails" xlink:type="extended" id="i1a8fcbf05040479ba04e469c456bf545_RevenuesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_2a59f46e-7639-4d07-9ba6-c7bfa82c383c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_2a59f46e-7639-4d07-9ba6-c7bfa82c383c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_fcb609e6-c27f-4cf1-ac6c-6d256d084b7a" xlink:href="chgg-20210331.xsd#chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_fcb609e6-c27f-4cf1-ac6c-6d256d084b7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_98898044-15d0-40aa-9bc4-16d9d06412c8" xlink:href="chgg-20210331.xsd#chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_98898044-15d0-40aa-9bc4-16d9d06412c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_75accf79-8ae2-4fc9-af4f-bc77b59732b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_75accf79-8ae2-4fc9-af4f-bc77b59732b7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_3af402d7-5420-4d2b-a655-ceafeee23f98" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_3af402d7-5420-4d2b-a655-ceafeee23f98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_b302beba-79d6-46d2-987d-b87a60352908" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_b302beba-79d6-46d2-987d-b87a60352908" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInAccountsReceivableNet_6f9ae80e-cf03-45b2-9a17-863d62bc42cf" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInAccountsReceivableNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseInAccountsReceivableNet_6f9ae80e-cf03-45b2-9a17-863d62bc42cf" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseinAccountsReceivablePercent_72baae7f-b0f3-4523-8586-2765d9251041" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseinAccountsReceivablePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseinAccountsReceivablePercent_72baae7f-b0f3-4523-8586-2765d9251041" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_4810d618-ac0b-42e3-91eb-0b4cc38fcf80" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_4810d618-ac0b-42e3-91eb-0b4cc38fcf80" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_739b090f-2d57-4217-8966-232545ab4fcd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_739b090f-2d57-4217-8966-232545ab4fcd" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_faa90cc0-158e-4030-96f8-9a94e115c37b" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_faa90cc0-158e-4030-96f8-9a94e115c37b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_4da88fd6-2e56-48be-8439-7b191e0d6be6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_4da88fd6-2e56-48be-8439-7b191e0d6be6" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInContractWithCustomerAssets_00900b0e-8795-463b-81e9-ccf68aeeb83a" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInContractWithCustomerAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseInContractWithCustomerAssets_00900b0e-8795-463b-81e9-ccf68aeeb83a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_6bd36a70-2ae4-4550-9126-3a4c48cc64c6" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_6bd36a70-2ae4-4550-9126-3a4c48cc64c6" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:to="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_ff63b6c5-6a16-46a6-a162-d4544a5e40d0_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:to="loc_srt_ProductsAndServicesDomain_ff63b6c5-6a16-46a6-a162-d4544a5e40d0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:to="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CheggServicesMember_abc4d916-dddd-4882-aebe-f0fbd4cc1497" xlink:href="chgg-20210331.xsd#chgg_CheggServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:to="loc_chgg_CheggServicesMember_abc4d916-dddd-4882-aebe-f0fbd4cc1497" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RequiredMaterialsMember_9ea51821-2553-403b-aa2e-d1515597074b" xlink:href="chgg-20210331.xsd#chgg_RequiredMaterialsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:to="loc_chgg_RequiredMaterialsMember_9ea51821-2553-403b-aa2e-d1515597074b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryMember_68c6a1ed-bf8f-4275-a3a4-6ee6ff44b5a0" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:to="loc_chgg_TextbookLibraryMember_68c6a1ed-bf8f-4275-a3a4-6ee6ff44b5a0" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShare" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShare"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/NetLossPerShare" xlink:type="extended" id="i0d11084e22eb4d6a823cff3228aab48e_NetLossPerShare"/>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/NetLossPerShareTables" xlink:type="extended" id="i53d1c4d7bf1d4633a37c80da32c5e225_NetLossPerShareTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" xlink:type="extended" id="ia86303dcf4b149fa9832cb0e31c5c056_NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAbstract_95f9a256-2066-4437-bd6e-5343f77a6393" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLossAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_NetIncomeLossAbstract_95f9a256-2066-4437-bd6e-5343f77a6393" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_635ac51a-832d-4c14-bdd7-584f51055aa9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_95f9a256-2066-4437-bd6e-5343f77a6393" xlink:to="loc_us-gaap_NetIncomeLoss_635ac51a-832d-4c14-bdd7-584f51055aa9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_8b35903c-73bf-4193-a7cc-bf16fa53a31d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_8b35903c-73bf-4193-a7cc-bf16fa53a31d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_ffe5ecc0-ba46-46fa-a1a8-c36a50f331b3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_8b35903c-73bf-4193-a7cc-bf16fa53a31d" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_ffe5ecc0-ba46-46fa-a1a8-c36a50f331b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_95d763ea-45bd-4b12-b4c3-7e9fc64e265b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_95d763ea-45bd-4b12-b4c3-7e9fc64e265b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_d8256241-2c78-4106-9b88-07519b492112" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_d8256241-2c78-4106-9b88-07519b492112" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionMember_af97ebf6-c435-4e80-a82e-f912e539c46a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_d8256241-2c78-4106-9b88-07519b492112" xlink:to="loc_us-gaap_StockOptionMember_af97ebf6-c435-4e80-a82e-f912e539c46a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" xlink:type="extended" id="i6f724996b4d44598adf4aa2687e58ccd_NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_231b0d0d-cafc-47d3-8253-db522f1271c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_02b31c91-b48c-49fc-984d-86214e9ea598" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_231b0d0d-cafc-47d3-8253-db522f1271c9" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_02b31c91-b48c-49fc-984d-86214e9ea598" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_231b0d0d-cafc-47d3-8253-db522f1271c9" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_ef65517d-323c-4bc9-ae8f-0b4838f0238f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_ef65517d-323c-4bc9-ae8f-0b4838f0238f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionMember_3f1ad0b3-8fa4-451a-99ad-183e9b65e2d3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_us-gaap_StockOptionMember_3f1ad0b3-8fa4-451a-99ad-183e9b65e2d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_58fa1960-229a-4f96-9e6c-299e451e9e7c" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_58fa1960-229a-4f96-9e6c-299e451e9e7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_32be44dc-c272-458c-8c5d-4cc2cb1dbe9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_us-gaap_SeniorNotesMember_32be44dc-c272-458c-8c5d-4cc2cb1dbe9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_70dc3543-7c0a-44b4-aaf9-742f4d305591" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_us-gaap_EmployeeStockMember_70dc3543-7c0a-44b4-aaf9-742f4d305591" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestments" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestments"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestments" xlink:type="extended" id="i6d67e7c449764bd4b933fb042e73bf14_CashandCashEquivalentsandInvestments"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables" xlink:type="extended" id="i9fe22dd224f545d888114582176a9634_CashandCashEquivalentsandInvestmentsTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" xlink:type="extended" id="i21e2e31bd1fc47aba36e62a284444827_CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_82dbb1ef-af57-4e5a-934c-93efb1826897" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_82dbb1ef-af57-4e5a-934c-93efb1826897" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_18f0fbfb-88d6-4e30-a640-c3a186e1ef99" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_18f0fbfb-88d6-4e30-a640-c3a186e1ef99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_89e7edfe-2901-4714-82af-f9458aa48049" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_89e7edfe-2901-4714-82af-f9458aa48049" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_a1a98270-429a-4514-aa91-937244d60033" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_a1a98270-429a-4514-aa91-937244d60033" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b375fe3d-4799-4340-9b3a-94c470d2dd14_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b375fe3d-4799-4340-9b3a-94c470d2dd14_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashMember_a7a0d433-87a6-4bf4-8146-3657e9890b0f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:to="loc_us-gaap_CashMember_a7a0d433-87a6-4bf4-8146-3657e9890b0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_e8216a10-9d03-4896-b373-394deeda388a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:to="loc_us-gaap_MoneyMarketFundsMember_e8216a10-9d03-4896-b373-394deeda388a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_cf8b3ac1-fb64-41fa-b916-5321af0af47b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:to="loc_us-gaap_CommercialPaperMember_cf8b3ac1-fb64-41fa-b916-5321af0af47b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassDomain_d9e8104d-e68c-48e9-81d1-fa1fc04147d5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:to="loc_us-gaap_UnderlyingAssetClassDomain_d9e8104d-e68c-48e9-81d1-fa1fc04147d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:to="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_f0d6e843-06fa-4c0e-8d5a-21e189e1d837" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:to="loc_us-gaap_CommercialPaperMember_f0d6e843-06fa-4c0e-8d5a-21e189e1d837" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_309c0efb-9ae9-44c1-8cc6-611005da8632" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_309c0efb-9ae9-44c1-8cc6-611005da8632" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AgencySecuritiesMember_f2382617-6042-4dd7-8dbd-9fca057fac64" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AgencySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:to="loc_us-gaap_AgencySecuritiesMember_f2382617-6042-4dd7-8dbd-9fca057fac64" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsMember_5c1cdd9b-c346-4003-9bd8-8b1a738a2eb1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:to="loc_us-gaap_CashAndCashEquivalentsMember_5c1cdd9b-c346-4003-9bd8-8b1a738a2eb1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestmentsMember_15d338c2-4dc0-4561-b8f5-a3f5c62bf6a0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:to="loc_us-gaap_ShortTermInvestmentsMember_15d338c2-4dc0-4561-b8f5-a3f5c62bf6a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestmentsMember_888a318b-78d3-4232-ba36-011b825c13eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLongTermInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:to="loc_us-gaap_OtherLongTermInvestmentsMember_888a318b-78d3-4232-ba36-011b825c13eb" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsContractualMaturityDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails" xlink:type="extended" id="idebe0f7adf4549fdb49117a6b9acb458_CashandCashEquivalentsandInvestmentsContractualMaturityDetails"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" xlink:type="extended" id="i28f3d876f5ae478fa4ca8d8636ddad17_CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_f5290f24-6d15-4b9b-86ed-84a1b512d6ba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_f5290f24-6d15-4b9b-86ed-84a1b512d6ba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentSoldCarryingAmount_565ed33b-8628-4551-ac7f-b81a4e54b55a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentSoldCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_EquityMethodInvestmentSoldCarryingAmount_565ed33b-8628-4551-ac7f-b81a4e54b55a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_fb4421bb-16a0-443e-973f-08878e1c6f86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_fb4421bb-16a0-443e-973f-08878e1c6f86" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_6aa2f623-453a-48be-bafc-98ec98721be6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_6aa2f623-453a-48be-bafc-98ec98721be6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_846d67b7-f40e-47c3-a978-ccf647f5933f_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_846d67b7-f40e-47c3-a978-ccf647f5933f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TAPDInc.Member_01aef14a-ac22-4baf-9d46-f62ea7b7505e" xlink:href="chgg-20210331.xsd#chgg_TAPDInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:to="loc_chgg_TAPDInc.Member_01aef14a-ac22-4baf-9d46-f62ea7b7505e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ForeignEntityMember_c1dc5b4c-610e-4ee6-898a-665d745d43ca" xlink:href="chgg-20210331.xsd#chgg_ForeignEntityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:to="loc_chgg_ForeignEntityMember_c1dc5b4c-610e-4ee6-898a-665d745d43ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_6ea9deba-0594-4e75-9d3e-437700558c62_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_6ea9deba-0594-4e75-9d3e-437700558c62_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_86f6487f-d205-44a4-839d-56e9c6db7ab2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_86f6487f-d205-44a4-839d-56e9c6db7ab2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ForeignEntityMember_9ebd1134-5ea2-4298-ab42-d34845726eb9" xlink:href="chgg-20210331.xsd#chgg_ForeignEntityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_86f6487f-d205-44a4-839d-56e9c6db7ab2" xlink:to="loc_chgg_ForeignEntityMember_9ebd1134-5ea2-4298-ab42-d34845726eb9" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurement" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurement"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/FairValueMeasurement" xlink:type="extended" id="ic1c909be143b440a8cf5df9bcc7c32ff_FairValueMeasurement"/>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/FairValueMeasurementTables" xlink:type="extended" id="i4fa39c70f8e24f319846c073462ab4bb_FairValueMeasurementTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementFinancialInstrumentsDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails" xlink:type="extended" id="i5f8203870b854dc59e40fd1a743c823a_FairValueMeasurementFinancialInstrumentsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4fe52675-12c9-4560-9846-1812dbfaefe9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4fe52675-12c9-4560-9846-1812dbfaefe9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_b35bf1aa-def7-40ce-a713-c99c95bf27d5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_ShortTermInvestments_b35bf1aa-def7-40ce-a713-c99c95bf27d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_7049c55c-947d-48d6-8334-8020ff0b430f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_LongTermInvestments_7049c55c-947d-48d6-8334-8020ff0b430f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_a466b675-67aa-47f6-b074-129d36a08991" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_a466b675-67aa-47f6-b074-129d36a08991" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_2822f836-16f5-47e3-aa22-ef5a4261a7aa_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_2822f836-16f5-47e3-aa22-ef5a4261a7aa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_6571b725-0feb-4920-9e41-51d5d9994020" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:to="loc_us-gaap_MoneyMarketFundsMember_6571b725-0feb-4920-9e41-51d5d9994020" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_a78a3186-b238-4843-8ec0-b4a59e1402c2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:to="loc_us-gaap_CommercialPaperMember_a78a3186-b238-4843-8ec0-b4a59e1402c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_fbf5195d-e830-4234-8c73-72547bb9ba1b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_fbf5195d-e830-4234-8c73-72547bb9ba1b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_72faa1cf-57b8-4e2e-aa6c-2050953774b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:to="loc_us-gaap_CommercialPaperMember_72faa1cf-57b8-4e2e-aa6c-2050953774b1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_efe6864f-fdf6-4a8d-a187-82c06385f557" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_efe6864f-fdf6-4a8d-a187-82c06385f557" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AgencySecuritiesMember_e784af80-5813-46a6-8055-aad98468ab0f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AgencySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:to="loc_us-gaap_AgencySecuritiesMember_e784af80-5813-46a6-8055-aad98468ab0f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_6d348b30-172d-4696-9d65-27b539234366_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_6d348b30-172d-4696-9d65-27b539234366_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_f528e95a-8ad9-40c9-bac6-b222d557801c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_f528e95a-8ad9-40c9-bac6-b222d557801c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_eb94a39c-cded-40c5-b29e-2f19e53f3102" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_f528e95a-8ad9-40c9-bac6-b222d557801c" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_eb94a39c-cded-40c5-b29e-2f19e53f3102" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_b62e7117-8477-42aa-910a-782e6bc3d315_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_b62e7117-8477-42aa-910a-782e6bc3d315_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_8dabdcd4-d055-4dcc-875a-d891c2a7fd1e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_8dabdcd4-d055-4dcc-875a-d891c2a7fd1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_6ee60877-69c8-495e-872c-ef66ed757000" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_6ee60877-69c8-495e-872c-ef66ed757000" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementDebtDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementDebtDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/FairValueMeasurementDebtDetails" xlink:type="extended" id="ib4ca8e7754ed47ea9f6c789fa2a7522c_FairValueMeasurementDebtDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_05f7c874-6d6a-4898-8d73-aad0f2ecbc76" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_LongTermDebtFairValue_05f7c874-6d6a-4898-8d73-aad0f2ecbc76" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_ecbc3b8c-48b7-426a-b5a2-d09c3acb4304" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_ecbc3b8c-48b7-426a-b5a2-d09c3acb4304" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_94bcc23c-298a-4e67-b81c-bd0a681ed2b6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_94bcc23c-298a-4e67-b81c-bd0a681ed2b6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_1a69f68d-8485-414f-937f-1ad64cf49fd6_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_1a69f68d-8485-414f-937f-1ad64cf49fd6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4b92691f-f91c-4cb9-a9a3-4474419a4e84" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4b92691f-f91c-4cb9-a9a3-4474419a4e84" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_ce5f3241-9907-4dcf-a5b3-b4570053491c" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_ce5f3241-9907-4dcf-a5b3-b4570053491c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_d84da317-5eee-43fb-987c-20e3189d7f96" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_d84da317-5eee-43fb-987c-20e3189d7f96" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_bf0c4017-f2df-4328-94c4-b03d1bcf6496_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_bf0c4017-f2df-4328-94c4-b03d1bcf6496_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_ced2274a-743b-42c3-839f-a6b57204500a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_ced2274a-743b-42c3-839f-a6b57204500a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e6f10234-7bde-4b46-b52f-cb38a203d88d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e6f10234-7bde-4b46-b52f-cb38a203d88d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_711f237b-d880-4004-883b-3f7380433c93" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_711f237b-d880-4004-883b-3f7380433c93" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_37c467a7-d50f-404f-8794-e513a51b8bbd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_37c467a7-d50f-404f-8794-e513a51b8bbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_0c574f28-429c-43f2-a3e2-36baea867863" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_37c467a7-d50f-404f-8794-e513a51b8bbd" xlink:to="loc_us-gaap_SeniorNotesMember_0c574f28-429c-43f2-a3e2-36baea867863" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_b986a32c-64f1-4de7-9145-554150870832_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_b986a32c-64f1-4de7-9145-554150870832_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_c85b7299-cf0c-4182-815e-62bd2177cd5c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_c85b7299-cf0c-4182-815e-62bd2177cd5c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_ca595b67-fb02-4f73-a244-b1c0b6fd82c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_c85b7299-cf0c-4182-815e-62bd2177cd5c" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_ca595b67-fb02-4f73-a244-b1c0b6fd82c0" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/Acquisitions" xlink:type="simple" xlink:href="chgg-20210331.xsd#Acquisitions"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/Acquisitions" xlink:type="extended" id="ifb7fb7468fee4edca3cfb7f9d113b725_Acquisitions"/>
  <link:roleRef roleURI="http://www.chegg.com/role/AcquisitionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#AcquisitionsDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/AcquisitionsDetails" xlink:type="extended" id="iad3d8feb9df44b46ad7ca2b8d90b878a_AcquisitionsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_BusinessCombinationPercentOwnershipAcquired_ddb49b61-8bd9-4dd7-9cee-02245bae0e50" xlink:href="chgg-20210331.xsd#chgg_BusinessCombinationPercentOwnershipAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_chgg_BusinessCombinationPercentOwnershipAcquired_ddb49b61-8bd9-4dd7-9cee-02245bae0e50" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_32f81243-eb29-433b-a275-b474d4266244" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_32f81243-eb29-433b-a275-b474d4266244" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_8b313045-50e2-4c3c-b247-fea0b29b7b93" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_8b313045-50e2-4c3c-b247-fea0b29b7b93" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_8d9df079-9561-407d-988d-56f077621462" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_8d9df079-9561-407d-988d-56f077621462" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_a5cdd405-dd2d-42e0-a9a4-5f7e8bc852b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_Goodwill_a5cdd405-dd2d-42e0-a9a4-5f7e8bc852b5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_5a289e04-9ce7-4fe9-9590-a76e6401f3c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_5a289e04-9ce7-4fe9-9590-a76e6401f3c3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6d085962-7d34-45ea-96b8-218685c4f5d1_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6d085962-7d34-45ea-96b8-218685c4f5d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0df45f59-ab49-4e77-b78c-354336bfcaac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0df45f59-ab49-4e77-b78c-354336bfcaac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TechnologyCompanyMember_35dc2f2a-8493-4fe5-888f-4538a44bc344" xlink:href="chgg-20210331.xsd#chgg_TechnologyCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0df45f59-ab49-4e77-b78c-354336bfcaac" xlink:to="loc_chgg_TechnologyCompanyMember_35dc2f2a-8493-4fe5-888f-4538a44bc344" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotes" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotes"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotes" xlink:type="extended" id="i049f083b2bbb47428d005c243bd5f68a_ConvertibleSeniorNotes"/>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesTables" xlink:type="extended" id="i8dfb667d41ae4bd496274a3a93788d77_ConvertibleSeniorNotesTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesDetails" xlink:type="extended" id="i1a851944f595450c9cd11a3455ef2acf_ConvertibleSeniorNotesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_8bb60fb6-9189-4599-91af-67cf9f50442c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_8bb60fb6-9189-4599-91af-67cf9f50442c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8fc29b82-9b5a-4856-8449-75189a5943f9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8fc29b82-9b5a-4856-8449-75189a5943f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_a8c2d1ac-23bc-4252-91df-5f5740900709" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_a8c2d1ac-23bc-4252-91df-5f5740900709" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_390bd1a4-8d24-4135-9c64-1b3b86576931" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_390bd1a4-8d24-4135-9c64-1b3b86576931" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentsForInitialPurchasersDiscount_99f3848f-f749-4a08-96b6-6602e562f240" xlink:href="chgg-20210331.xsd#chgg_PaymentsForInitialPurchasersDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_PaymentsForInitialPurchasersDiscount_99f3848f-f749-4a08-96b6-6602e562f240" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_8f51a649-35db-426e-bcb8-5480abc97334" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_8f51a649-35db-426e-bcb8-5480abc97334" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_0f07882f-5b79-4988-a084-f6fd4595888a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_0f07882f-5b79-4988-a084-f6fd4595888a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_8a61f9f9-a232-4f4a-9cf5-6afb174ecd86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_8a61f9f9-a232-4f4a-9cf5-6afb174ecd86" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt_2c60d2ae-edf2-4266-bcf5-342e7b77ad05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt_2c60d2ae-edf2-4266-bcf5-342e7b77ad05" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_85d578a2-6df1-4a09-9c74-64567faa5397" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DerivativeLiabilities_85d578a2-6df1-4a09-9c74-64567faa5397" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfDerivatives_9d84e9d1-b640-4967-b6e0-743c6e289b20" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfDerivatives"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_GainLossOnSaleOfDerivatives_9d84e9d1-b640-4967-b6e0-743c6e289b20" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_617d665d-fb19-427f-abf4-a0e1748917ec" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_LongTermDebt_617d665d-fb19-427f-abf4-a0e1748917ec" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_956a5728-3fac-4e0d-a001-209feee0de4e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_956a5728-3fac-4e0d-a001-209feee0de4e" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConvertibleSharesTerminated_32cb5cbe-9ebe-4885-bc32-4931ee358f56" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConvertibleSharesTerminated"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentConvertibleSharesTerminated_32cb5cbe-9ebe-4885-bc32-4931ee358f56" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_1a02e71f-99ba-45ea-a682-a07a67e4b3c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_1a02e71f-99ba-45ea-a682-a07a67e4b3c9" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_c8d25aac-edc4-49da-97c1-34fae1429b5f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_c8d25aac-edc4-49da-97c1-34fae1429b5f" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_778a01e9-dac4-403d-9635-3c6195f2dfdb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_778a01e9-dac4-403d-9635-3c6195f2dfdb" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_1bbf5676-a4f9-4417-b0fa-568043e2f58b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_1bbf5676-a4f9-4417-b0fa-568043e2f58b" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_b2b2faf3-6d47-4dbb-a9cc-73d1f3e471e0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_b2b2faf3-6d47-4dbb-a9cc-73d1f3e471e0" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_cab1251f-91cb-4cb9-9032-4426590516a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_cab1251f-91cb-4cb9-9032-4426590516a7" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionOriginalDebtAmount1_6b541c0c-899a-4833-8f02-995f7395bdea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtConversionOriginalDebtAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtConversionOriginalDebtAmount1_6b541c0c-899a-4833-8f02-995f7395bdea" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionConsideration_5617f98c-ac8d-470a-b4f5-9a609dd46222" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionConsideration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentDebtConversionConsideration_5617f98c-ac8d-470a-b4f5-9a609dd46222" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_9da154f1-1a76-4729-8606-a54e3f767e0d" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_9da154f1-1a76-4729-8606-a54e3f767e0d" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_4e1dfea1-5f98-4276-b4ad-c0b70bdb8134" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_4e1dfea1-5f98-4276-b4ad-c0b70bdb8134" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromCappedCall_1bd2918b-c018-4e6f-ad1c-c2880a3b528b" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromCappedCall"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_ProceedsFromCappedCall_1bd2918b-c018-4e6f-ad1c-c2880a3b528b" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_06367792-9859-4034-b840-736ba1bf4aa0" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_06367792-9859-4034-b840-736ba1bf4aa0" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_de905e04-f62c-4d26-bc3c-3137f1293803" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_de905e04-f62c-4d26-bc3c-3137f1293803" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_e92e760e-b43b-48d0-a947-62bb26c1c98e" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_e92e760e-b43b-48d0-a947-62bb26c1c98e" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_13071a7a-09b4-40d4-b87c-4ec852afe925_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_13071a7a-09b4-40d4-b87c-4ec852afe925_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_aa233bc4-0848-4610-8ec4-a1d2fcaa0e14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_aa233bc4-0848-4610-8ec4-a1d2fcaa0e14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_08567bc0-3577-4661-8a8d-3e320b6fa02d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_aa233bc4-0848-4610-8ec4-a1d2fcaa0e14" xlink:to="loc_us-gaap_SeniorNotesMember_08567bc0-3577-4661-8a8d-3e320b6fa02d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_ef1c05b0-a962-494c-b3f4-d706aa2a632e" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_ef1c05b0-a962-494c-b3f4-d706aa2a632e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_99833029-5c82-471f-9a90-856e44e27fe6" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_99833029-5c82-471f-9a90-856e44e27fe6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_3acc2ca5-c629-4cf9-a28b-45cae1527c84" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_3acc2ca5-c629-4cf9-a28b-45cae1527c84" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fc0f60d-5d3e-4c59-9ffa-8bb047e0082a" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fc0f60d-5d3e-4c59-9ffa-8bb047e0082a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain_79774cad-a099-4fc4-84f5-0647cffef86a_default" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:to="loc_chgg_DebtInstrumentTransactionDomain_79774cad-a099-4fc4-84f5-0647cffef86a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:to="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CappedCallMember_f9a12331-774b-49a8-8493-f89d781ada4e" xlink:href="chgg-20210331.xsd#chgg_CappedCallMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:to="loc_chgg_CappedCallMember_f9a12331-774b-49a8-8493-f89d781ada4e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ExchangeOfAggregatePrincipalAmountMember_c21a89ca-5d36-4049-96a8-f5b2248d921d" xlink:href="chgg-20210331.xsd#chgg_ExchangeOfAggregatePrincipalAmountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:to="loc_chgg_ExchangeOfAggregatePrincipalAmountMember_c21a89ca-5d36-4049-96a8-f5b2248d921d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsDomain_b8922750-dd4b-4363-be3f-291eed825c1c_default" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:to="loc_chgg_DebtCovenantTermsDomain_b8922750-dd4b-4363-be3f-291eed825c1c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:to="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SalePriceIsGreaterOrEqual130PercentMember_7a1b00b0-eabe-40c7-8012-19ad7345a7de" xlink:href="chgg-20210331.xsd#chgg_SalePriceIsGreaterOrEqual130PercentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:to="loc_chgg_SalePriceIsGreaterOrEqual130PercentMember_7a1b00b0-eabe-40c7-8012-19ad7345a7de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_29a5cdd4-6824-4fd8-860e-fe604cf8a961" xlink:href="chgg-20210331.xsd#chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:to="loc_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_29a5cdd4-6824-4fd8-860e-fe604cf8a961" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_78b7825e-5003-4587-9b25-30d39fa1271e_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:to="loc_srt_RangeMember_78b7825e-5003-4587-9b25-30d39fa1271e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d9844022-277c-4bb7-a00b-9e9b98678eac" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:to="loc_srt_RangeMember_d9844022-277c-4bb7-a00b-9e9b98678eac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_33acca1b-25d4-40cc-959c-47236521ade1" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_d9844022-277c-4bb7-a00b-9e9b98678eac" xlink:to="loc_srt_MaximumMember_33acca1b-25d4-40cc-959c-47236521ade1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_b8675cf5-1145-45ae-824c-e4e28be33522" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_b8675cf5-1145-45ae-824c-e4e28be33522" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_d56c118a-41a4-46b8-a655-0a5dfba86151" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_d56c118a-41a4-46b8-a655-0a5dfba86151" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_570271cf-0523-4ca2-9c54-453d71f67712_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_570271cf-0523-4ca2-9c54-453d71f67712_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_5f731e91-5ada-40d5-bd99-50c0f5b922ab" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_5f731e91-5ada-40d5-bd99-50c0f5b922ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_e5992959-f26f-4958-b518-7f09d39538b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_5f731e91-5ada-40d5-bd99-50c0f5b922ab" xlink:to="loc_us-gaap_SubsequentEventMember_e5992959-f26f-4958-b518-7f09d39538b4" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesNetCarryingAmountDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails" xlink:type="extended" id="i4fa79cc4d089441ca8e5959b4d943ff6_ConvertibleSeniorNotesNetCarryingAmountDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_ee99e1b7-3b38-4c83-a4c6-55e037c51aa8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_ee99e1b7-3b38-4c83-a4c6-55e037c51aa8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_4f91c373-4001-4abb-89fb-41e35b758641" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_4f91c373-4001-4abb-89fb-41e35b758641" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_64799c02-6c3c-45a3-81ad-7671640168ba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_64799c02-6c3c-45a3-81ad-7671640168ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_f1d3c70a-b3b6-4b62-aedc-935183e45357" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_LongTermDebtFairValue_f1d3c70a-b3b6-4b62-aedc-935183e45357" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_bef69e5f-0642-40f8-ba18-243f8d0b357a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_bef69e5f-0642-40f8-ba18-243f8d0b357a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_30a14ef3-01ac-491e-a553-51ec7e7e47b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_30a14ef3-01ac-491e-a553-51ec7e7e47b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_b8607c5d-4d3e-4647-9dc9-9dfdda454f44_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_b8607c5d-4d3e-4647-9dc9-9dfdda454f44_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_60f79f31-909c-45ec-b092-415530f9d294" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_60f79f31-909c-45ec-b092-415530f9d294" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_fad2f90a-4914-4a03-b2d6-ccc123e6e97e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_60f79f31-909c-45ec-b092-415530f9d294" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_fad2f90a-4914-4a03-b2d6-ccc123e6e97e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f19e7bcb-760d-458c-b6f3-0774fb765127_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f19e7bcb-760d-458c-b6f3-0774fb765127_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_12b79569-a204-4347-a57b-2d2cf710bd1d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_12b79569-a204-4347-a57b-2d2cf710bd1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_bf4b6c26-2246-4ce0-8a98-5c6dbd487820" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_12b79569-a204-4347-a57b-2d2cf710bd1d" xlink:to="loc_us-gaap_SeniorNotesMember_bf4b6c26-2246-4ce0-8a98-5c6dbd487820" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_5b0e1d35-bfbd-46b5-8de5-aa8e3cefaeda" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_5b0e1d35-bfbd-46b5-8de5-aa8e3cefaeda" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_20360505-0383-4e2e-a8cf-939e3c5d1d12" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_20360505-0383-4e2e-a8cf-939e3c5d1d12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fd721cd-1d00-4d09-94ec-48a8dff73959" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fd721cd-1d00-4d09-94ec-48a8dff73959" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesInterestExpenseRecognizedDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails" xlink:type="extended" id="ie576879bc571468f9600f3c595c2e0aa_ConvertibleSeniorNotesInterestExpenseRecognizedDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_a1249083-f542-4b8f-9c6a-0c562605ed6c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_a1249083-f542-4b8f-9c6a-0c562605ed6c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_4a553ed7-19ca-4343-87b4-602c93547734" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium_4a553ed7-19ca-4343-87b4-602c93547734" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_928af5bc-ee9e-497a-92d8-57915220872c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_928af5bc-ee9e-497a-92d8-57915220872c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_e434418d-172e-49af-bbde-f0fb297632ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_InterestExpenseDebt_e434418d-172e-49af-bbde-f0fb297632ad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_770d121b-c45e-4b83-bdba-eb8fec64d930_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_770d121b-c45e-4b83-bdba-eb8fec64d930_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_affb0771-54e5-4347-a44c-bd52c67756cd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_affb0771-54e5-4347-a44c-bd52c67756cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_1c34d9ad-592b-4855-95b2-1a4dfe51b32e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_affb0771-54e5-4347-a44c-bd52c67756cd" xlink:to="loc_us-gaap_SeniorNotesMember_1c34d9ad-592b-4855-95b2-1a4dfe51b32e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:to="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2cdd7126-02e4-46d8-bc18-5ec411dff239_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2cdd7126-02e4-46d8-bc18-5ec411dff239_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_dda55a64-2de4-4643-b6c1-adfa02132139" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_dda55a64-2de4-4643-b6c1-adfa02132139" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_cb5a3ffc-ea15-417e-8607-46c96d6bd97a" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_cb5a3ffc-ea15-417e-8607-46c96d6bd97a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0b69a5bd-3253-4d7a-89c8-3722a4b4041b" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0b69a5bd-3253-4d7a-89c8-3722a4b4041b" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesCappedCallDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails" xlink:type="extended" id="i8f48d91bca62496089257d6860083593_ConvertibleSeniorNotesCappedCallDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_5c3d5f40-168d-4820-bbc8-0cd9ab6668ca" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_5c3d5f40-168d-4820-bbc8-0cd9ab6668ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConvertibleShares_88c6efe8-7613-4b17-b586-e6f33fd80182" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConvertibleShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_chgg_DebtInstrumentConvertibleShares_88c6efe8-7613-4b17-b586-e6f33fd80182" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_76cdff76-8436-4762-96ac-119ddd53f21d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_76cdff76-8436-4762-96ac-119ddd53f21d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain_a4e445b9-af14-4ed9-b7e4-d938af36a2c8_default" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:to="loc_chgg_DebtInstrumentTransactionDomain_a4e445b9-af14-4ed9-b7e4-d938af36a2c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain_49f3cd3d-6194-4b17-9ede-1fd46cc349de" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:to="loc_chgg_DebtInstrumentTransactionDomain_49f3cd3d-6194-4b17-9ede-1fd46cc349de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CappedCallMember_39196b74-7829-42d5-8713-604d3d60e9de" xlink:href="chgg-20210331.xsd#chgg_CappedCallMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_chgg_DebtInstrumentTransactionDomain_49f3cd3d-6194-4b17-9ede-1fd46cc349de" xlink:to="loc_chgg_CappedCallMember_39196b74-7829-42d5-8713-604d3d60e9de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_08f71dd6-39ef-4dd7-91fd-30d242d25463_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_08f71dd6-39ef-4dd7-91fd-30d242d25463_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_682de25c-db4a-4f12-8ad7-7ae670888115" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_682de25c-db4a-4f12-8ad7-7ae670888115" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_fcdd1e71-7039-479b-81f1-419c246c1998" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_fcdd1e71-7039-479b-81f1-419c246c1998" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0d455e0a-1c4d-430c-9b0a-8460ae04de2d" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0d455e0a-1c4d-430c-9b0a-8460ae04de2d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_af09d1b6-3264-401c-b3d6-8568de4363de_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_af09d1b6-3264-401c-b3d6-8568de4363de_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_36626fb0-2255-4d35-acbc-6c55f882d67d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_36626fb0-2255-4d35-acbc-6c55f882d67d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_6104dd2b-7397-4e68-8f66-8144ea26e811" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_36626fb0-2255-4d35-acbc-6c55f882d67d" xlink:to="loc_us-gaap_SeniorNotesMember_6104dd2b-7397-4e68-8f66-8144ea26e811" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="chgg-20210331.xsd#CommitmentsandContingencies"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CommitmentsandContingencies" xlink:type="extended" id="i073b0f8969784756bee8bc6f8a021c4a_CommitmentsandContingencies"/>
  <link:roleRef roleURI="http://www.chegg.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CommitmentsandContingenciesDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/CommitmentsandContingenciesDetails" xlink:type="extended" id="i79e3360a52754ee99a5a563d15fda66c_CommitmentsandContingenciesDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_1da246b7-0a20-450a-b94a-49dbe15b1687" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_1da246b7-0a20-450a-b94a-49dbe15b1687" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber_ca91c3d7-4293-4d9e-84f3-d77cc066673b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyNewClaimsFiledNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingencyNewClaimsFiledNumber_ca91c3d7-4293-4d9e-84f3-d77cc066673b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyDamagesSoughtValue_dc1e15f7-d9c8-4dc0-b1d8-874cae0110a6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyDamagesSoughtValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingencyDamagesSoughtValue_dc1e15f7-d9c8-4dc0-b1d8-874cae0110a6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:to="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_4e3e3949-2e78-4101-8109-fa9b573aeedc_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:to="loc_srt_LitigationCaseTypeDomain_4e3e3949-2e78-4101-8109-fa9b573aeedc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:to="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A2018DataIncidentArbitrationDemandsMember_415ef658-d1e0-423a-9644-ad547672eb27" xlink:href="chgg-20210331.xsd#chgg_A2018DataIncidentArbitrationDemandsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:to="loc_chgg_A2018DataIncidentArbitrationDemandsMember_415ef658-d1e0-423a-9644-ad547672eb27" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_65bacc24-66ed-434b-9a95-c64f00447bad" xlink:href="chgg-20210331.xsd#chgg_VitalSourceTechnologiesLLCVSTVsCheggMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:to="loc_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_65bacc24-66ed-434b-9a95-c64f00447bad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:to="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_dacd6183-8018-4066-9cf9-a28f321f7b3d_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:to="loc_us-gaap_LitigationStatusDomain_dacd6183-8018-4066-9cf9-a28f321f7b3d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_c09877ef-57fd-4fa6-9215-26aa9219091c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:to="loc_us-gaap_LitigationStatusDomain_c09877ef-57fd-4fa6-9215-26aa9219091c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PendingLitigationMember_46327577-9fad-4ce6-9031-e395bf02cc44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PendingLitigationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_c09877ef-57fd-4fa6-9215-26aa9219091c" xlink:to="loc_us-gaap_PendingLitigationMember_46327577-9fad-4ce6-9031-e395bf02cc44" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/GuaranteesandIndemnifications" xlink:type="simple" xlink:href="chgg-20210331.xsd#GuaranteesandIndemnifications"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/GuaranteesandIndemnifications" xlink:type="extended" id="i0b942e52ec054891ab135934b0054d3d_GuaranteesandIndemnifications"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquity" xlink:type="extended" id="i4fbd73a8847a43f39cfbd2e7e98f9d49_StockholdersEquity"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityTables"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquityTables" xlink:type="extended" id="i2aae74faf0aa4e36b25c40267230fa93_StockholdersEquityTables"/>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityEquityOfferingDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails" xlink:type="extended" id="iebb9fbc7fe9a436db53f2f1eead4701a_StockholdersEquityEquityOfferingDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_f7833200-aa3c-46c8-a40e-a63cce8dc703" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_f7833200-aa3c-46c8-a40e-a63cce8dc703" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_d53e5725-25fd-42c5-abcf-6261be31daf7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_d53e5725-25fd-42c5-abcf-6261be31daf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_c705806c-1d91-4ac4-aef6-3dd4f979b4d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_c705806c-1d91-4ac4-aef6-3dd4f979b4d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_330f018c-6c59-4f4f-983d-2babffef850f" xlink:href="chgg-20210331.xsd#chgg_SaleOfStockUnderwritingDiscountsAndCommissions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_330f018c-6c59-4f4f-983d-2babffef850f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SaleOfStockOfferingExpenses_ac311cc9-dbe0-43f1-8128-3148b65d4879" xlink:href="chgg-20210331.xsd#chgg_SaleOfStockOfferingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_chgg_SaleOfStockOfferingExpenses_ac311cc9-dbe0-43f1-8128-3148b65d4879" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_5822a9ed-0ca3-4e92-a62a-6d25ca65edcb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_5822a9ed-0ca3-4e92-a62a-6d25ca65edcb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PublicOfferingMember_c4dd62b7-8bfb-4f49-91ae-9c17021dcfc1" xlink:href="chgg-20210331.xsd#chgg_PublicOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_5822a9ed-0ca3-4e92-a62a-6d25ca65edcb" xlink:to="loc_chgg_PublicOfferingMember_c4dd62b7-8bfb-4f49-91ae-9c17021dcfc1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySecuritiesRepurchaseProgramDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails" xlink:type="extended" id="i02aacedeccf24891b960e4a17652ea59_StockholdersEquitySecuritiesRepurchaseProgramDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_3f425287-df56-4642-85b2-2ecb53542f58" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_3f425287-df56-4642-85b2-2ecb53542f58" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_a0379bf3-b0c9-4fa7-9fcc-6b1388c9189a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_a0379bf3-b0c9-4fa7-9fcc-6b1388c9189a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt_445efd26-c31d-48c5-9727-e5c7a79bc989" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt_445efd26-c31d-48c5-9727-e5c7a79bc989" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_fd571e50-a266-4815-8d84-6c4a092077df" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_fd571e50-a266-4815-8d84-6c4a092077df" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:to="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_c895fcea-970e-4357-b033-47eccaaaf056_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_c895fcea-970e-4357-b033-47eccaaaf056_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e7081c82-0ec4-48db-a8ae-04c8717539c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e7081c82-0ec4-48db-a8ae-04c8717539c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_de02f702-6c20-48c4-b588-ed2c0fad624c" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e7081c82-0ec4-48db-a8ae-04c8717539c0" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_de02f702-6c20-48c4-b588-ed2c0fad624c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_8cd610da-0f84-42d6-8db9-db819708b96a_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_8cd610da-0f84-42d6-8db9-db819708b96a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_1eae10c1-a7f6-4bb4-8c40-344b1cf3d91b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_1eae10c1-a7f6-4bb4-8c40-344b1cf3d91b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_dfa37d0c-9e9a-48fd-bb3a-2618153feccc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1eae10c1-a7f6-4bb4-8c40-344b1cf3d91b" xlink:to="loc_us-gaap_SeniorNotesMember_dfa37d0c-9e9a-48fd-bb3a-2618153feccc" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySharebasedCompensationExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails" xlink:type="extended" id="iac6a31070df640d8b13259fe77fbe5ab_StockholdersEquitySharebasedCompensationExpenseDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_6d3be515-d6e4-431a-808a-d5c379753b8e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_6d3be515-d6e4-431a-808a-d5c379753b8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_b7041982-de83-45bd-9c8b-5f87b7ce41be" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_b7041982-de83-45bd-9c8b-5f87b7ce41be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_40be2e8b-16aa-4610-ad2b-1135ed8c34c5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_40be2e8b-16aa-4610-ad2b-1135ed8c34c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_4a3a0c42-e6ba-432c-aa09-4fa7c67505d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_CostOfSalesMember_4a3a0c42-e6ba-432c-aa09-4fa7c67505d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_7d7b82ee-58f6-47d8-b8e1-fd6a6ebe777b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_7d7b82ee-58f6-47d8-b8e1-fd6a6ebe777b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_33363077-e0de-4da2-ab69-cc77e5308167" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_33363077-e0de-4da2-ab69-cc77e5308167" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_3aa71a80-5ae9-4b8a-b035-71df8c367d6b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_3aa71a80-5ae9-4b8a-b035-71df8c367d6b" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" xlink:type="extended" id="i26ad314ef0d34fe99086cb976774bcb7_StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_c3872401-7c0c-4eaa-a1f4-8d018e19b95a" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_c3872401-7c0c-4eaa-a1f4-8d018e19b95a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_e5daae08-9d01-49e0-967a-cff4f8638b74" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_e5daae08-9d01-49e0-967a-cff4f8638b74" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_09eb273d-9e29-447e-8601-7c428471e125" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_09eb273d-9e29-447e-8601-7c428471e125" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_eae63798-c7a7-4ea4-8275-e987082a9c4b" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_eae63798-c7a7-4ea4-8275-e987082a9c4b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_4f2ae6b2-8a96-4350-9cb4-1d65c6848c98" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_4f2ae6b2-8a96-4350-9cb4-1d65c6848c98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_f908c9f9-bfc8-480f-8b8a-09b533909c1b" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_f908c9f9-bfc8-480f-8b8a-09b533909c1b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_db16d552-6761-4d7a-9609-2ddf7b667be1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_db16d552-6761-4d7a-9609-2ddf7b667be1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_9e1cff91-591a-4f19-a693-4314843a1ce2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_9e1cff91-591a-4f19-a693-4314843a1ce2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_ca3371e4-8293-4d61-a4af-163ef6dbd774" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_ca3371e4-8293-4d61-a4af-163ef6dbd774" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_3acc5c20-ccad-478d-b1c8-d08fb5bbb6aa" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_3acc5c20-ccad-478d-b1c8-d08fb5bbb6aa" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_bc768417-1c05-414e-b5f9-54b54210efa6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_bc768417-1c05-414e-b5f9-54b54210efa6" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_72d400d0-6c6a-4eb7-88be-7429b20741eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_72d400d0-6c6a-4eb7-88be-7429b20741eb" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b8f98925-a519-4c54-b975-2d03934d9a1f_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b8f98925-a519-4c54-b975-2d03934d9a1f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f3e4a4e1-ac6f-4c24-95fa-e7cdb3057dac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f3e4a4e1-ac6f-4c24-95fa-e7cdb3057dac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesMarketBasedConditionsMember_8e73a222-6082-4891-906b-7beb363728a4" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesMarketBasedConditionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f3e4a4e1-ac6f-4c24-95fa-e7cdb3057dac" xlink:to="loc_chgg_PerformanceSharesMarketBasedConditionsMember_8e73a222-6082-4891-906b-7beb363728a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:to="loc_us-gaap_VestingDomain_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:to="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_1c811d60-b424-4d0a-a676-dd8896b86a44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_1c811d60-b424-4d0a-a676-dd8896b86a44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_ad9cc3f5-ceda-4280-a670-ce09b3f70747" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_ad9cc3f5-ceda-4280-a670-ce09b3f70747" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_f945edf6-b49f-44c2-a5d8-ee6f03a60e25" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_f945edf6-b49f-44c2-a5d8-ee6f03a60e25" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_03f561e6-baa5-4ad5-b486-69d0914509ac_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:to="loc_srt_ScenarioUnspecifiedDomain_03f561e6-baa5-4ad5-b486-69d0914509ac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_a931ef6c-cec2-416b-920e-910bcef19134" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:to="loc_srt_ScenarioUnspecifiedDomain_a931ef6c-cec2-416b-920e-910bcef19134" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_51099d34-903a-4473-b57d-a6001b14eb8e" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_a931ef6c-cec2-416b-920e-910bcef19134" xlink:to="loc_srt_ScenarioForecastMember_51099d34-903a-4473-b57d-a6001b14eb8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_31312c5c-6abe-4cc1-bcb8-918bd4a652fa_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:to="loc_srt_RangeMember_31312c5c-6abe-4cc1-bcb8-918bd4a652fa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:to="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_bc5e10b1-c879-4fd8-a544-7703fe375ef7" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:to="loc_srt_MinimumMember_bc5e10b1-c879-4fd8-a544-7703fe375ef7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_cd958eb8-5f1a-4409-b62b-a22873909ff1" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:to="loc_srt_MaximumMember_cd958eb8-5f1a-4409-b62b-a22873909ff1" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySummaryofAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails" xlink:type="extended" id="i1de9038041434349b63ca840c3d690c2_StockholdersEquitySummaryofAssumptionsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_7d5523e2-09b9-4f1e-a961-730675c82eb7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_7d5523e2-09b9-4f1e-a961-730675c82eb7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_70c8d360-9f22-4daf-856f-2d7b4594fd25" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_70c8d360-9f22-4daf-856f-2d7b4594fd25" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_16c7b58a-003c-430b-8007-bc18a4c96d71" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_16c7b58a-003c-430b-8007-bc18a4c96d71" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9e5ec1ce-f5c3-4d66-82aa-7f998762b7f8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9e5ec1ce-f5c3-4d66-82aa-7f998762b7f8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:to="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b080da5b-fdb7-4c64-8538-c6203d8bfd00_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b080da5b-fdb7-4c64-8538-c6203d8bfd00_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a0645e46-ce7b-45a4-89e1-0bae8aee819c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a0645e46-ce7b-45a4-89e1-0bae8aee819c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesMarketBasedConditionsMember_9fd8215d-d319-407b-b432-79589135f1c8" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesMarketBasedConditionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a0645e46-ce7b-45a4-89e1-0bae8aee819c" xlink:to="loc_chgg_PerformanceSharesMarketBasedConditionsMember_9fd8215d-d319-407b-b432-79589135f1c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:to="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_e94c2803-bf89-403d-96d7-7fc07aa70f02_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:to="loc_srt_RangeMember_e94c2803-bf89-403d-96d7-7fc07aa70f02_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:to="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_25f6aedd-1e78-49a9-9a12-16cfc5699e13" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:to="loc_srt_MinimumMember_25f6aedd-1e78-49a9-9a12-16cfc5699e13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_e0411dab-852d-4439-bbf5-5b6a8bba5cfe" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:to="loc_srt_MaximumMember_e0411dab-852d-4439-bbf5-5b6a8bba5cfe" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" xlink:type="extended" id="ia4e0ef219415431389c412bf5dd9f224_StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_c322a1fa-ed98-4fbf-a190-9df169d522b9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_c322a1fa-ed98-4fbf-a190-9df169d522b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_d069273e-0fb9-4ac2-9c5e-ecc57ba5238d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_d069273e-0fb9-4ac2-9c5e-ecc57ba5238d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_90d8f3eb-7d0d-4918-bf4e-3d3373ba7df1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_90d8f3eb-7d0d-4918-bf4e-3d3373ba7df1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_fe4e15c7-ad9f-49d8-89b2-e53680c404c3" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_fe4e15c7-ad9f-49d8-89b2-e53680c404c3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:to="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_31151bc5-667f-491a-be17-ae61143241d7_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_31151bc5-667f-491a-be17-ae61143241d7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_ef90647f-5148-4d35-a9f9-e9a8da3f9c70" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:to="loc_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_ef90647f-5148-4d35-a9f9-e9a8da3f9c70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_2128aeba-2d41-4539-b507-7ff33cba4349" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_2128aeba-2d41-4539-b507-7ff33cba4349" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:to="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a48640e5-8913-4ee4-ba9a-3412129136c4_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:to="loc_srt_RangeMember_a48640e5-8913-4ee4-ba9a-3412129136c4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:to="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_a43528f6-b3ab-4808-80e8-dc386fd52cd5" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:to="loc_srt_MinimumMember_a43528f6-b3ab-4808-80e8-dc386fd52cd5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_1e14a394-8e58-4164-8f78-5bd6ffc3b565" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:to="loc_srt_MaximumMember_1e14a394-8e58-4164-8f78-5bd6ffc3b565" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" xlink:type="extended" id="i7c087c600e344916bc182a1f36af642a_StockholdersEquitySummaryofRestrictedStockUnitActivityDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_5639e5b1-7683-47bf-afef-f46ce1b264d6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_5639e5b1-7683-47bf-afef-f46ce1b264d6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_00df9ba8-e128-475f-b944-d6ce1af56fe6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_00df9ba8-e128-475f-b944-d6ce1af56fe6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_0697f4f9-4a7e-4e6f-bc7c-350c5f720727" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_0697f4f9-4a7e-4e6f-bc7c-350c5f720727" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_c7f53c60-c801-44d9-ba7f-4d5c7bc498b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_c7f53c60-c801-44d9-ba7f-4d5c7bc498b4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_3bb2d184-34a0-4b2f-a159-797467318da7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_ba70ab5d-5b96-4f17-b9ab-d61c5528c5e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_ba70ab5d-5b96-4f17-b9ab-d61c5528c5e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_b1e03afd-8821-431a-990a-db18755f1c05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_b1e03afd-8821-431a-990a-db18755f1c05" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_4fa7f3e4-fe75-446d-9179-a6626007eb4c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_4fa7f3e4-fe75-446d-9179-a6626007eb4c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_70a8200d-322b-4491-9f4a-4574501fcf6a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_70a8200d-322b-4491-9f4a-4574501fcf6a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_227245b5-7a96-4d23-9cc8-0adfc1f14476" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:to="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e05d07cc-66da-475c-82e1-6b53393566b5_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e05d07cc-66da-475c-82e1-6b53393566b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_801be575-54b3-4ad5-83a8-ab59597fc72d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_801be575-54b3-4ad5-83a8-ab59597fc72d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_1908a46c-a7f2-44b3-9982-5426294cf7b8" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_801be575-54b3-4ad5-83a8-ab59597fc72d" xlink:to="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_1908a46c-a7f2-44b3-9982-5426294cf7b8" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails" xlink:type="extended" id="i140723f5c07644a69d5f20a869af4e5c_StockholdersEquityAdditionalInformationDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_5eac36a0-c8ad-42a8-934c-34afa7a58486" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_5eac36a0-c8ad-42a8-934c-34afa7a58486" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_a9601f8e-8b9d-4c1d-b456-5af790c5d062" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_a9601f8e-8b9d-4c1d-b456-5af790c5d062" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:to="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2f094658-1dc4-4575-938e-c77f2ff13396_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2f094658-1dc4-4575-938e-c77f2ff13396_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_317576dd-dca9-46d7-a08d-4297a4f9b333" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_317576dd-dca9-46d7-a08d-4297a4f9b333" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_a7c4e332-1a5c-417b-bf50-aecf07a44784" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_317576dd-dca9-46d7-a08d-4297a4f9b333" xlink:to="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_a7c4e332-1a5c-417b-bf50-aecf07a44784" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.chegg.com/role/RelatedPartyTransactions" xlink:type="simple" xlink:href="chgg-20210331.xsd#RelatedPartyTransactions"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/RelatedPartyTransactions" xlink:type="extended" id="i875cc52d174440dcaff3123a92672b4b_RelatedPartyTransactions"/>
  <link:roleRef roleURI="http://www.chegg.com/role/RelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#RelatedPartyTransactionsDetails"/>
  <link:definitionLink xlink:role="http://www.chegg.com/role/RelatedPartyTransactionsDetails" xlink:type="extended" id="i77c17af4d5594ee596874a9c0903e800_RelatedPartyTransactionsDetails">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_64699832-e696-420d-aeb8-814b58a2e88f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_64699832-e696-420d-aeb8-814b58a2e88f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromRelatedParties_66aa1755-82e2-41f9-a4af-4457ecb288e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RevenueFromRelatedParties_66aa1755-82e2-41f9-a4af-4457ecb288e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToOfficersOrStockholdersCurrent_d574a236-532d-4d50-9cf6-c69e4cf3c480" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_DueToOfficersOrStockholdersCurrent_d574a236-532d-4d50-9cf6-c69e4cf3c480" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_b5228b86-2a0a-4058-8781-813486c4ef67" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_b5228b86-2a0a-4058-8781-813486c4ef67" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_2474d6c8-91ad-4a7a-a500-5964af100896" xlink:href="chgg-20210331.xsd#chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_2474d6c8-91ad-4a7a-a500-5964af100896" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_747b51a8-ad70-489b-89e3-c6757fd101c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_747b51a8-ad70-489b-89e3-c6757fd101c9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_718985ff-74f3-451b-8382-455b08620476" xlink:href="chgg-20210331.xsd#chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_718985ff-74f3-451b-8382-455b08620476" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_04e84a09-220e-450b-9c42-ad4c824c9f0a_default" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_04e84a09-220e-450b-9c42-ad4c824c9f0a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AdobeSystemsMember_772d514d-3d49-4b2b-b388-c6393627f46c" xlink:href="chgg-20210331.xsd#chgg_AdobeSystemsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:to="loc_chgg_AdobeSystemsMember_772d514d-3d49-4b2b-b388-c6393627f46c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ZuoraIncMember_20c9c562-041d-43ac-875d-a33a9c1364b9" xlink:href="chgg-20210331.xsd#chgg_ZuoraIncMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:to="loc_chgg_ZuoraIncMember_20c9c562-041d-43ac-875d-a33a9c1364b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PayPalHoldingsInc.Member_8948a3ba-7ec6-4a94-a016-8c3e71332f23" xlink:href="chgg-20210331.xsd#chgg_PayPalHoldingsInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:to="loc_chgg_PayPalHoldingsInc.Member_8948a3ba-7ec6-4a94-a016-8c3e71332f23" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_b9558d3e-99f3-4655-9e28-bc41b498a3ad_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:to="loc_us-gaap_RelatedPartyDomain_b9558d3e-99f3-4655-9e28-bc41b498a3ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:to="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_3f92333b-3c59-46eb-9cbd-ef19c41b569e" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:to="loc_srt_ChiefExecutiveOfficerMember_3f92333b-3c59-46eb-9cbd-ef19c41b569e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_BoardOfDirectorsMemberMember_672bffe7-835d-42b8-8cb1-5511dcf9ae68" xlink:href="chgg-20210331.xsd#chgg_BoardOfDirectorsMemberMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:to="loc_chgg_BoardOfDirectorsMemberMember_672bffe7-835d-42b8-8cb1-5511dcf9ae68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember_8db907e6-8008-43a6-a6fb-096c33f02fd8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:to="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember_8db907e6-8008-43a6-a6fb-096c33f02fd8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_baaee579-51d2-40d1-bcf4-f568e941812b_default" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_baaee579-51d2-40d1-bcf4-f568e941812b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_46cbfc41-7a68-49e1-8be7-81bbf03d62e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_46cbfc41-7a68-49e1-8be7-81bbf03d62e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentProcessingFeesMember_cdd73225-6723-46c0-894b-37dbee763242" xlink:href="chgg-20210331.xsd#chgg_PaymentProcessingFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_46cbfc41-7a68-49e1-8be7-81bbf03d62e4" xlink:to="loc_chgg_PaymentProcessingFeesMember_cdd73225-6723-46c0-894b-37dbee763242" xlink:type="arc" order="0"/>
  </link:definitionLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>8
<FILENAME>chgg-20210331_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:7620c16c-72f1-4706-8c7f-035d13f64afa,g:676e331c-5624-4c9f-b3c2-ce75be2bd13e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_7cf43bcc-d662-4434-852d-472b7f703046_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Grants in period (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_91876996-00cc-4390-b925-dd4c33582638_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of RSUs and PSUs, Granted (shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RestatementAxis_4f5a7dc6-4c66-486f-b8af-350a074afbd0_terseLabel_en-US" xlink:label="lab_srt_RestatementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revision of Prior Period [Axis]</link:label>
    <link:label id="lab_srt_RestatementAxis_label_en-US" xlink:label="lab_srt_RestatementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revision of Prior Period [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RestatementAxis" xlink:to="lab_srt_RestatementAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_d2442753-185c-422f-8cd1-579f8c4aff77_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_bfc26c31-bc6d-40d7-a88d-ccda0d419336_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other (expense) income, net</link:label>
    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_acf40a33-bc74-49e1-8f94-32513254a75b_totalLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other (expense) income, net</link:label>
    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Nonoperating Income (Expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense" xlink:to="lab_us-gaap_OtherNonoperatingIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_d5a8a0be-25a2-4287-b559-b9d2499a1c56_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_d240e806-6f32-4ac8-9657-3d468efdfccc_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AmortizationOfDebtDiscountPremium_f522729e-437e-4419-99a7-d105e4f6b3ba_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfDebtDiscountPremium" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of debt discount</link:label>
    <link:label id="lab_us-gaap_AmortizationOfDebtDiscountPremium_label_en-US" xlink:label="lab_us-gaap_AmortizationOfDebtDiscountPremium" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of Debt Discount (Premium)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfDebtDiscountPremium" xlink:to="lab_us-gaap_AmortizationOfDebtDiscountPremium" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes_c01c23ad-764f-46c1-985e-1e5d9371fca4_terseLabel_en-US" xlink:label="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock related to repayment of convertible senior notes</link:label>
    <link:label id="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes_label_en-US" xlink:label="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued, Repayment For Convertible Senior Notes</link:label>
    <link:label id="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes_documentation_en-US" xlink:label="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued, Repayment For Convertible Senior Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedRepaymentForConvertibleSeniorNotes" xlink:href="chgg-20210331.xsd#chgg_StockIssuedRepaymentForConvertibleSeniorNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_StockIssuedRepaymentForConvertibleSeniorNotes" xlink:to="lab_chgg_StockIssuedRepaymentForConvertibleSeniorNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock_b333e13a-7754-4d4a-bf5d-fac964734f36_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents, and Investment</link:label>
    <link:label id="lab_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock_label_en-US" xlink:label="lab_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock" xlink:to="lab_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_9164b8dd-5961-47cb-8808-dc3d24c44f73_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Grant Date Fair Value, Released (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_68238bbe-632d-4dfa-b159-37fc4693c019_terseLabel_en-US" xlink:label="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock upon exercise of stock options and ESPP</link:label>
    <link:label id="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_label_en-US" xlink:label="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, Employee Stock Purchase Plan and Stock Options Exercised</link:label>
    <link:label id="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_documentation_en-US" xlink:label="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, Employee Stock Purchase Plan and Stock Options Exercised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" xlink:href="chgg-20210331.xsd#chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" xlink:to="lab_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_331de76e-715e-4fc2-8fc5-acb2e9143c84_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Expenses from transactions with related party</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, Expenses from Transactions with Related Party</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:to="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_32d79aea-1ac8-451d-87b1-1ba08f2cd6e0_terseLabel_en-US" xlink:label="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in deferred revenue, percent</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_label_en-US" xlink:label="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Contract with Customer, Liability, Percent</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_documentation_en-US" xlink:label="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Contract with Customer, Liability, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" xlink:to="lab_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnderlyingAssetClassAxis_99fa2ffa-6af6-43ee-86bc-48c2a91bdee7_terseLabel_en-US" xlink:label="lab_us-gaap_UnderlyingAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Underlying Asset Class [Axis]</link:label>
    <link:label id="lab_us-gaap_UnderlyingAssetClassAxis_label_en-US" xlink:label="lab_us-gaap_UnderlyingAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Underlying Asset Class [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnderlyingAssetClassAxis" xlink:to="lab_us-gaap_UnderlyingAssetClassAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeMember_119fcd08-7846-48b9-8951-33448c3bb3e2_terseLabel_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:label id="lab_srt_RangeMember_label_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeMember" xlink:to="lab_srt_RangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_602fadf1-abaa-47d2-9975-ad0947bf01b1_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities and stockholders' equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities and Equity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8d05e205-6d15-4292-9d61-d2ec6baaf3e3_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfDebt_e18fef23-14a5-4e34-aff6-30e51c636d32_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from issuance of debt</link:label>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfDebt_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Issuance of Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfDebt" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt_46fcc4eb-bf05-4131-b022-4199f89cbd1d_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity component of convertible senior notes, net of issuance costs</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SecurityExchangeName_a6d41c5c-0b6d-4296-8e59-2bede08ac3a2_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_label_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_33e986ef-8dda-4a21-8d27-cac282dc4d29_terseLabel_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Intangible assets, net</link:label>
    <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_label_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Intangible Assets, Net (Excluding Goodwill)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:to="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_b0337880-1ab5-49e2-8b37-4a162dd033b9_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments not due at a single maturity date, Fair Value</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromConvertibleDebt_98d3db82-1e6c-4cb1-bd92-9d44ed4a216d_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from exercise of convertible senior notes capped call</link:label>
    <link:label id="lab_us-gaap_ProceedsFromConvertibleDebt_label_en-US" xlink:label="lab_us-gaap_ProceedsFromConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Convertible Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromConvertibleDebt" xlink:to="lab_us-gaap_ProceedsFromConvertibleDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember_7e20e345-bb7b-4d5b-ad3a-bd83efefcf87_terseLabel_en-US" xlink:label="lab_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Immediate Family Member of Management or Principal Owner</link:label>
    <link:label id="lab_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember_label_en-US" xlink:label="lab_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Immediate Family Member of Management or Principal Owner [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:to="lab_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SellingAndMarketingExpenseMember_19e101b4-f2d4-4f1a-a597-c86a724daf97_terseLabel_en-US" xlink:label="lab_us-gaap_SellingAndMarketingExpenseMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sales and marketing</link:label>
    <link:label id="lab_us-gaap_SellingAndMarketingExpenseMember_label_en-US" xlink:label="lab_us-gaap_SellingAndMarketingExpenseMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Selling and Marketing Expense [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SellingAndMarketingExpenseMember" xlink:to="lab_us-gaap_SellingAndMarketingExpenseMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_7d0f9916-f2a2-403a-8c59-6b9e1934940e_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income from operations</link:label>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Income (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="lab_us-gaap_OperatingIncomeLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsOfDebtIssuanceCosts_00c016cf-8cfa-46df-89ca-a420c92c4901_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDebtIssuanceCosts" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less other issuance costs</link:label>
    <link:label id="lab_us-gaap_PaymentsOfDebtIssuanceCosts_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDebtIssuanceCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments of Debt Issuance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDebtIssuanceCosts" xlink:to="lab_us-gaap_PaymentsOfDebtIssuanceCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_d7e1c67e-e3c4-41c8-a978-9eef32aa2d0b_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent" xlink:to="lab_us-gaap_LiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_7b0d2225-7a34-437d-94cd-ef46c636b3e4_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Accounts Receivable</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:to="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_9528f309-d8ae-4625-813d-0b08fe6bf414_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_4f6c815e-3678-46a0-ab7f-7405984ae3fc_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Grant Date Fair Value, Ending balance (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_bfb1c4bd-b4d3-4ff0-b3cf-2745fef7974c_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable" xlink:to="lab_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_A0ConvertibleSeniorNotesDue2026Member_f3e0b0ac-abae-4e56-8310-e0b0ba29fbb7_terseLabel_en-US" xlink:label="lab_chgg_A0ConvertibleSeniorNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0% Convertible Senior Notes Due 2026</link:label>
    <link:label id="lab_chgg_A0ConvertibleSeniorNotesDue2026Member_label_en-US" xlink:label="lab_chgg_A0ConvertibleSeniorNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0% Convertible Senior Notes Due 2026 [Member]</link:label>
    <link:label id="lab_chgg_A0ConvertibleSeniorNotesDue2026Member_documentation_en-US" xlink:label="lab_chgg_A0ConvertibleSeniorNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0% Convertible Senior Notes Due 2026</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_A0ConvertibleSeniorNotesDue2026Member" xlink:to="lab_chgg_A0ConvertibleSeniorNotesDue2026Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_7da26bde-7e9b-495e-bc42-e62700ce08e6_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_53649875-737b-402e-87bb-1f4ce058eb7d_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and contingencies</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies" xlink:to="lab_us-gaap_CommitmentsAndContingencies" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_b4b0e74b-2476-4a9c-a8c3-a607dfd9b749_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net share settlement of equity awards</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_f623ce97-dcd9-45a4-be2b-e7c16610f70f_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Target Level</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Tranche Two [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:to="lab_us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsAbstract_4ecb1b23-d482-4233-8061-b0b653eb1cbb_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="lab_us-gaap_AssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_fca366db-1a4d-49f4-b46e-1d23659d3e93_terseLabel_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_label_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_18650bfd-1b7f-459b-87fd-136bcac3443a_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting period</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_a81988f1-15fc-4c66-bac8-299fbb493a55_terseLabel_en-US" xlink:label="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in total net revenues</link:label>
    <link:label id="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_label_en-US" xlink:label="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease)</link:label>
    <link:label id="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_documentation_en-US" xlink:label="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" xlink:href="chgg-20210331.xsd#chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" xlink:to="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_2461542d-dae6-417c-bcc4-af1ac2f82369_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_e98cb662-4e11-434f-b05a-84d3e453ca69_negatedLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of RSUs and PSUs, Released (shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeasePayments_e17d6a22-a199-4271-a425-a9257d0d30f6_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating cash flows from operating leases</link:label>
    <link:label id="lab_us-gaap_OperatingLeasePayments_label_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeasePayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasePayments" xlink:to="lab_us-gaap_OperatingLeasePayments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_893853be-92b0-4be1-94d0-e511649971da_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Payable, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent" xlink:to="lab_us-gaap_AccountsPayableCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_IncreaseDecreaseInAccountsReceivableNet_440696e0-5fa6-42bd-8957-f68418a04220_terseLabel_en-US" xlink:label="lab_chgg_IncreaseDecreaseInAccountsReceivableNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in accounts receivable</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseInAccountsReceivableNet_label_en-US" xlink:label="lab_chgg_IncreaseDecreaseInAccountsReceivableNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) In Accounts Receivable, Net</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseInAccountsReceivableNet_documentation_en-US" xlink:label="lab_chgg_IncreaseDecreaseInAccountsReceivableNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) In Accounts Receivable, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInAccountsReceivableNet" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInAccountsReceivableNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_IncreaseDecreaseInAccountsReceivableNet" xlink:to="lab_chgg_IncreaseDecreaseInAccountsReceivableNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_98fefc3b-9db5-446d-9975-acf83c47ba76_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated deficit</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_71360380-92c2-4d2e-96d5-a8af963b30b5_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Right of use assets</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Right-of-Use Asset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAsset" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_af5ff8e0-5bc7-4356-b9a4-05af008be3d4_terseLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reconciliation of cash, cash equivalents and restricted cash:</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_d2b1d6be-301a-4b6c-bcc8-dba4298a3307_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss on early extinguishment of debt</link:label>
    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_5ae89139-8f5c-430b-853c-d745d21398ea_terseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss on early extinguishment of debt</link:label>
    <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_label_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain (Loss) on Extinguishment of Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_4f761b7a-c3a3-4f6c-90e8-8cb25148ccd7_terseLabel_en-US" xlink:label="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued purchases of long-lived assets</link:label>
    <link:label id="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_label_en-US" xlink:label="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Noncash or Part Noncash Acquisition, Fixed Assets Acquired</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:to="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtCovenantTermsAxis_990fc8b5-b380-4edd-a10d-66dafc7dcb6b_terseLabel_en-US" xlink:label="lab_chgg_DebtCovenantTermsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Covenant Terms [Axis]</link:label>
    <link:label id="lab_chgg_DebtCovenantTermsAxis_label_en-US" xlink:label="lab_chgg_DebtCovenantTermsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Covenant Terms [Axis]</link:label>
    <link:label id="lab_chgg_DebtCovenantTermsAxis_documentation_en-US" xlink:label="lab_chgg_DebtCovenantTermsAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Covenant Terms [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsAxis" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtCovenantTermsAxis" xlink:to="lab_chgg_DebtCovenantTermsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_a0b656f4-f7d7-4e2a-aada-2579ff8bcc18_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchases from related party</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, Purchases from Related Party</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:to="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_f0355c4c-a253-433e-be8a-f1248eb74ca0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_67390561-e288-4015-a71d-d87382f6533e_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments not due at a single maturity date, Cost</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockValue_267ad49d-2a37-4ab2-b6c6-07af668a8989_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, 0.001 par value&#160;&#8211; 10,000,000 shares authorized, no shares issued and outstanding</link:label>
    <link:label id="lab_us-gaap_PreferredStockValue_label_en-US" xlink:label="lab_us-gaap_PreferredStockValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Value, Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockValue" xlink:to="lab_us-gaap_PreferredStockValue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_98fbc1ba-aa8a-4981-91d9-93f4ac0a802e_terseLabel_en-US" xlink:label="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PSUs with Financial and Strategic Performance Targets</link:label>
    <link:label id="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_label_en-US" xlink:label="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Shares, Financial And Strategic Performance Targets [Member]</link:label>
    <link:label id="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_documentation_en-US" xlink:label="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Shares, Financial And Strategic Performance Targets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" xlink:to="lab_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_998cb5f3-013d-4956-baff-567a6d105eb0_terseLabel_en-US" xlink:label="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net proceeds from capped call related to conversions and extinguishments of 2023 notes and 2025 notes</link:label>
    <link:label id="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_label_en-US" xlink:label="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments To Additional Paid In Capital, Proceeds From Capped Call</link:label>
    <link:label id="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_documentation_en-US" xlink:label="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments To Additional Paid In Capital, Proceeds From Capped Call</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" xlink:href="chgg-20210331.xsd#chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" xlink:to="lab_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquireEquityMethodInvestments_5595ec2e-61cc-4931-8738-204c12bbf860_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireEquityMethodInvestments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchase of strategic equity investment</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireEquityMethodInvestments_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireEquityMethodInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Equity Method Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments" xlink:to="lab_us-gaap_PaymentsToAcquireEquityMethodInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingExpenses_afa181c9-230a-427e-a318-3a35a74dacde_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total operating expenses</link:label>
    <link:label id="lab_us-gaap_OperatingExpenses_label_en-US" xlink:label="lab_us-gaap_OperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpenses" xlink:to="lab_us-gaap_OperatingExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_42e3d6c6-fc06-4433-8760-505f701273c3_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, par value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_bce0eaab-b600-488c-af4d-653f02ea2596_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other comprehensive loss</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_4ed49fe3-ebcc-4f00-8a0a-82d61f6179a2_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other long-term liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Liabilities, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_1f71ce24-ed27-4c3b-9a46-51849d3902e0_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">APIC, Share-based Payment Arrangement, Increase for Cost Recognition</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_4da19850-df32-40d1-bcb4-b4788fe3c3d0_terseLabel_en-US" xlink:label="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of board members appointed to board of directors of related party</link:label>
    <link:label id="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_label_en-US" xlink:label="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions, Number of Board Members Appointed to Board of Directors of Related Party</link:label>
    <link:label id="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_documentation_en-US" xlink:label="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions, Number of Board Members Appointed to Board of Directors of Related Party</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" xlink:href="chgg-20210331.xsd#chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" xlink:to="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_f7c77233-d7fe-4240-8bbe-2e10d6f84745_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net revenues</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_016809aa-d0c7-45c7-9b4b-d021bafdf171_verboseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total net revenues</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer, Excluding Assessed Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_5673990b-44f3-4dea-b6c1-5ddb1b177eb9_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Frequency [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Frequency [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain" xlink:to="lab_us-gaap_FairValueMeasurementFrequencyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_158d9808-8b55-40b6-841c-a352565b523f_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum Level</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Tranche Three [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:to="lab_us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_5eef9472-7a01-4ae5-9f54-78aa4a65ad3a_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAxis" xlink:to="lab_us-gaap_BusinessAcquisitionAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1_c3863b25-3c3b-4e79-be5d-a072d9a1c74e_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Conversion ratio</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Conversion Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:to="lab_us-gaap_DebtInstrumentConvertibleConversionRatio1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementLineItems_259f7a70-cd1b-4c56-ba9f-a96fcab0b36e_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:label id="lab_us-gaap_StatementLineItems_label_en-US" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="lab_us-gaap_StatementLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DepreciationTextbookLibrary_21ab5e49-6408-4650-8050-dd23c572e20c_terseLabel_en-US" xlink:label="lab_chgg_DepreciationTextbookLibrary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Print textbook depreciation expense</link:label>
    <link:label id="lab_chgg_DepreciationTextbookLibrary_label_en-US" xlink:label="lab_chgg_DepreciationTextbookLibrary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation, Textbook Library</link:label>
    <link:label id="lab_chgg_DepreciationTextbookLibrary_documentation_en-US" xlink:label="lab_chgg_DepreciationTextbookLibrary" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation, Textbook Library</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DepreciationTextbookLibrary" xlink:href="chgg-20210331.xsd#chgg_DepreciationTextbookLibrary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DepreciationTextbookLibrary" xlink:to="lab_chgg_DepreciationTextbookLibrary" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_60938c33-e645-4174-bf44-441935336467_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:to="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScenarioForecastMember_0a7a8169-aa28-40e2-9958-56a77cee9639_terseLabel_en-US" xlink:label="lab_srt_ScenarioForecastMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forecast</link:label>
    <link:label id="lab_srt_ScenarioForecastMember_label_en-US" xlink:label="lab_srt_ScenarioForecastMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forecast [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioForecastMember" xlink:to="lab_srt_ScenarioForecastMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_AccountingStandardsUpdate202006Member_91f3f855-9ed4-4067-a008-83f2501cd375_terseLabel_en-US" xlink:label="lab_chgg_AccountingStandardsUpdate202006Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Standards Update 2020-06</link:label>
    <link:label id="lab_chgg_AccountingStandardsUpdate202006Member_label_en-US" xlink:label="lab_chgg_AccountingStandardsUpdate202006Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Standards Update 2020-06 [Member]</link:label>
    <link:label id="lab_chgg_AccountingStandardsUpdate202006Member_documentation_en-US" xlink:label="lab_chgg_AccountingStandardsUpdate202006Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Standards Update 2020-06</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AccountingStandardsUpdate202006Member" xlink:href="chgg-20210331.xsd#chgg_AccountingStandardsUpdate202006Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_AccountingStandardsUpdate202006Member" xlink:to="lab_chgg_AccountingStandardsUpdate202006Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementTable_34ba90d3-5191-4887-800b-2172d8dfc0fc_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Table]</link:label>
    <link:label id="lab_us-gaap_StatementTable_label_en-US" xlink:label="lab_us-gaap_StatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable" xlink:to="lab_us-gaap_StatementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_AdobeSystemsMember_b6e77142-264b-4005-948d-9fd8aa424613_terseLabel_en-US" xlink:label="lab_chgg_AdobeSystemsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adobe Systems</link:label>
    <link:label id="lab_chgg_AdobeSystemsMember_label_en-US" xlink:label="lab_chgg_AdobeSystemsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adobe Systems [Member]</link:label>
    <link:label id="lab_chgg_AdobeSystemsMember_documentation_en-US" xlink:label="lab_chgg_AdobeSystemsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adobe systems.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AdobeSystemsMember" xlink:href="chgg-20210331.xsd#chgg_AdobeSystemsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_AdobeSystemsMember" xlink:to="lab_chgg_AdobeSystemsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeAxis_1cad5c2e-5486-495e-8cb2-59fcce7a04d0_terseLabel_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:label id="lab_srt_RangeAxis_label_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeAxis" xlink:to="lab_srt_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember_3c91e5c6-cee3-49d5-8ea0-1eca89e08b26_terseLabel_en-US" xlink:label="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Price Is Greater Or Equal 130%</link:label>
    <link:label id="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember_label_en-US" xlink:label="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Price Is Greater Or Equal 130 Percent [Member]</link:label>
    <link:label id="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember_documentation_en-US" xlink:label="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Price Is Greater Or Equal 130 Percent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SalePriceIsGreaterOrEqual130PercentMember" xlink:href="chgg-20210331.xsd#chgg_SalePriceIsGreaterOrEqual130PercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_SalePriceIsGreaterOrEqual130PercentMember" xlink:to="lab_chgg_SalePriceIsGreaterOrEqual130PercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_d7448877-0e2b-4717-b9b1-05c290576afe_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, shares issued (in shares)</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Shares Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesIssued" xlink:to="lab_us-gaap_PreferredStockSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementsNonrecurringMember_4f49390f-584f-420c-bb83-6adcb4dd6952_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsNonrecurringMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Measurements, Nonrecurring</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsNonrecurringMember_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsNonrecurringMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Nonrecurring [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsNonrecurringMember" xlink:to="lab_us-gaap_FairValueMeasurementsNonrecurringMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationsAbstract_fbd74d93-5b92-4b5b-97dd-b0ab4bab6e13_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combinations [Abstract]</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationsAbstract_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combinations [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationsAbstract" xlink:to="lab_us-gaap_BusinessCombinationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareBasicAndDiluted_68466ae3-6b50-4f57-8997-b05c27989b62_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net loss per share, basic and diluted (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareBasicAndDiluted_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Basic and Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="lab_us-gaap_EarningsPerShareBasicAndDiluted" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntitySmallBusiness_30d94207-8e93-43ad-b99f-5555d84bcd23_terseLabel_en-US" xlink:label="lab_dei_EntitySmallBusiness" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Small Business</link:label>
    <link:label id="lab_dei_EntitySmallBusiness_label_en-US" xlink:label="lab_dei_EntitySmallBusiness" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Small Business</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntitySmallBusiness"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitySmallBusiness" xlink:to="lab_dei_EntitySmallBusiness" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_75cc3a5c-1e21-400a-b5fd-6a57611a9d03_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_c2bf3b52-2bb5-4e4e-9ffa-a40c7cfd3c2c_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of shares issued and sold (in shares)</link:label>
    <link:label id="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_label_en-US" xlink:label="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock, Number of Shares Issued in Transaction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="lab_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_0333b2ae-8f37-412a-b913-a2777bb68c87_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Convertible Senior Notes</link:label>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureTextBlock" xlink:to="lab_us-gaap_DebtDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_cffc2c39-4c9e-4b98-9839-d3b839e4cd34_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_88662d68-17ae-41e9-9c3a-4af509842d92_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid expenses</link:label>
    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid Expense, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseCurrent" xlink:to="lab_us-gaap_PrepaidExpenseCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_880714c1-a67b-497e-b942-39cb89038221_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from equity offering, net of offering costs</link:label>
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_label_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Issuance of Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CostOfRevenue_83b594b0-d5c9-4c9b-8393-c3932ffb5547_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfRevenue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of revenues</link:label>
    <link:label id="lab_us-gaap_CostOfRevenue_label_en-US" xlink:label="lab_us-gaap_CostOfRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of Revenue</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfRevenue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostOfRevenue" xlink:to="lab_us-gaap_CostOfRevenue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity_4267f38d-16dd-4620-810a-31435c56a25b_terseLabel_en-US" xlink:label="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted average maturity</link:label>
    <link:label id="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity_label_en-US" xlink:label="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available For Sale Securities, Weighted Average Maturity</link:label>
    <link:label id="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity_documentation_en-US" xlink:label="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available For Sale Securities, Weighted Average Maturity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" xlink:href="chgg-20210331.xsd#chgg_AvailableForSaleSecuritiesWeightedAverageMaturity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" xlink:to="lab_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_279f7715-0696-4e10-81fd-c32f4563a418_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maturities of investments</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Sale and Maturity of Debt Securities, Available-for-sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:to="lab_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_41ec46c5-52a0-45ff-8905-fc8ad61ee1b5_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_4d911d6c-4818-42ae-ae57-c6ba8cf19dda_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_59ab8934-ff6c-4077-b635-acbec66a5731_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Denominator:</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_f1952fd6-f710-439b-abf7-2ab3223091d7_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_BusinessCombinationPercentOwnershipAcquired_a0b94216-b794-4758-93ec-e2dbe36213fa_terseLabel_en-US" xlink:label="lab_chgg_BusinessCombinationPercentOwnershipAcquired" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership percent of stock acquired</link:label>
    <link:label id="lab_chgg_BusinessCombinationPercentOwnershipAcquired_label_en-US" xlink:label="lab_chgg_BusinessCombinationPercentOwnershipAcquired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Percent Ownership Acquired</link:label>
    <link:label id="lab_chgg_BusinessCombinationPercentOwnershipAcquired_documentation_en-US" xlink:label="lab_chgg_BusinessCombinationPercentOwnershipAcquired" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Percent Ownership Acquired</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_BusinessCombinationPercentOwnershipAcquired" xlink:href="chgg-20210331.xsd#chgg_BusinessCombinationPercentOwnershipAcquired"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_BusinessCombinationPercentOwnershipAcquired" xlink:to="lab_chgg_BusinessCombinationPercentOwnershipAcquired" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_acf68ee6-e5ae-4472-9393-6b67268763ec_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyDomain_31432335-2b2e-4a7b-8f35-7fdea8ed265a_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party</link:label>
    <link:label id="lab_us-gaap_RelatedPartyDomain_label_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="lab_us-gaap_RelatedPartyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_d6fb4288-3b02-4a48-a90b-82936fa38c5d_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Frequency [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Frequency [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="lab_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_89625282-b26e-4754-a84f-6fea4da79e13_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction [Line Items]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems" xlink:to="lab_us-gaap_RelatedPartyTransactionLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_TextbookLibraryMember_b4c0ac9a-555c-44ac-8b6e-cb15ce98a7eb_terseLabel_en-US" xlink:label="lab_chgg_TextbookLibraryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Textbook Library</link:label>
    <link:label id="lab_chgg_TextbookLibraryMember_label_en-US" xlink:label="lab_chgg_TextbookLibraryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Textbook Library [Member]</link:label>
    <link:label id="lab_chgg_TextbookLibraryMember_documentation_en-US" xlink:label="lab_chgg_TextbookLibraryMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Textbooks [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryMember" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_TextbookLibraryMember" xlink:to="lab_chgg_TextbookLibraryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_3466789a-aad3-4ccf-bb18-b5b7207d191e_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Receivables from related party</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, Due from (to) Related Party</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDueFromToRelatedParty" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedParty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionDueFromToRelatedParty" xlink:to="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_21fc7af4-f442-4984-8cc6-f244f41b4937_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss on change in fair value of derivative instruments, net</link:label>
    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_2b4e773e-f85f-4b53-b2e3-570ad2143bd9_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss on change in fair value of derivative instruments, net</link:label>
    <link:label id="lab_us-gaap_DerivativeGainLossOnDerivativeNet_label_en-US" xlink:label="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, Gain (Loss) on Derivative, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:to="lab_us-gaap_DerivativeGainLossOnDerivativeNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_b250db8f-dfe9-463e-b911-6575fb8d7972_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurement [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurement [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:to="lab_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_BoardOfDirectorsMemberMember_68dac88a-20da-4926-a3ab-dec0cd4bfb81_terseLabel_en-US" xlink:label="lab_chgg_BoardOfDirectorsMemberMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Board Of Directors Member</link:label>
    <link:label id="lab_chgg_BoardOfDirectorsMemberMember_label_en-US" xlink:label="lab_chgg_BoardOfDirectorsMemberMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Board Of Directors Member [Member]</link:label>
    <link:label id="lab_chgg_BoardOfDirectorsMemberMember_documentation_en-US" xlink:label="lab_chgg_BoardOfDirectorsMemberMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Board Of Directors Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_BoardOfDirectorsMemberMember" xlink:href="chgg-20210331.xsd#chgg_BoardOfDirectorsMemberMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_BoardOfDirectorsMemberMember" xlink:to="lab_chgg_BoardOfDirectorsMemberMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SeniorNotesMember_426edafa-4dde-4371-afc0-a5357d0681e1_terseLabel_en-US" xlink:label="lab_us-gaap_SeniorNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Notes</link:label>
    <link:label id="lab_us-gaap_SeniorNotesMember_fd22cdc7-9b52-4033-8b15-f0aa41666508_verboseLabel_en-US" xlink:label="lab_us-gaap_SeniorNotesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Shares related to convertible senior notes</link:label>
    <link:label id="lab_us-gaap_SeniorNotesMember_label_en-US" xlink:label="lab_us-gaap_SeniorNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Notes [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeniorNotesMember" xlink:to="lab_us-gaap_SeniorNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_ab17f9bb-d551-4bb0-aeaf-40a73ccc7f8c_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjusted Cost</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale, Amortized Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_32f5d469-fa83-40d1-87bd-150c9505f624_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrealized Gain</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_63a15b24-8c3c-404e-bad0-0673dc47fa27_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_59a47154-20ec-4579-b6aa-c3a1cdce0c30_totalLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net proceeds</link:label>
    <link:label id="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_6a279ce0-1fba-44c4-b3a5-c79251899c2c_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from issuance of convertible senior notes, net of issuance costs</link:label>
    <link:label id="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_label_en-US" xlink:label="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Debt, Net of Issuance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:to="lab_us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PaymentProcessingFeesMember_b7c613f1-0610-4bf0-9dbe-a121d7b6bd21_terseLabel_en-US" xlink:label="lab_chgg_PaymentProcessingFeesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment Processing Fees</link:label>
    <link:label id="lab_chgg_PaymentProcessingFeesMember_label_en-US" xlink:label="lab_chgg_PaymentProcessingFeesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment Processing Fees [Member]</link:label>
    <link:label id="lab_chgg_PaymentProcessingFeesMember_documentation_en-US" xlink:label="lab_chgg_PaymentProcessingFeesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment Processing Fees [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentProcessingFeesMember" xlink:href="chgg-20210331.xsd#chgg_PaymentProcessingFeesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PaymentProcessingFeesMember" xlink:to="lab_chgg_PaymentProcessingFeesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeStockMember_c82da6cd-97cd-4492-a62f-c01c7bbdc3ef_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Employee stock purchase plan</link:label>
    <link:label id="lab_us-gaap_EmployeeStockMember_label_en-US" xlink:label="lab_us-gaap_EmployeeStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Employee Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeStockMember" xlink:to="lab_us-gaap_EmployeeStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeStatementLocationAxis_edd4fa8d-1e1f-45e5-a91d-2e659a33c6ba_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementLocationAxis_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationAxis" xlink:to="lab_us-gaap_IncomeStatementLocationAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_93446b33-7014-4b97-95a7-4bf395d365ff_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allowance for doubtful accounts receivable, current</link:label>
    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_label_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Receivable, Allowance for Credit Loss, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_1a0a6bd1-dd5f-4b23-ad44-4c3a67a5b406_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeStatementLocationDomain_4ea82b77-2c17-4ecd-8296-bd58b813c599_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementLocationDomain_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationDomain" xlink:to="lab_us-gaap_IncomeStatementLocationDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashMember_f3b5e32f-64a0-42b6-8834-d7b798b22b32_terseLabel_en-US" xlink:label="lab_us-gaap_CashMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash</link:label>
    <link:label id="lab_us-gaap_CashMember_label_en-US" xlink:label="lab_us-gaap_CashMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashMember" xlink:to="lab_us-gaap_CashMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_cbdc7932-91ed-4b32-b779-f113995a174f_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash flows from financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock_4b2ca69a-6fdb-4c50-9999-ac77db9aa8de_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Available-for-sale Securities Reconciliation</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Available-for-sale Securities Reconciliation [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityMethodInvestmentSoldCarryingAmount_294674fb-4509-46a9-9a8f-e5794e546cf2_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentSoldCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consideration received on sale</link:label>
    <link:label id="lab_us-gaap_EquityMethodInvestmentSoldCarryingAmount_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentSoldCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Method Investment, Amount Sold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentSoldCarryingAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentSoldCarryingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentSoldCarryingAmount" xlink:to="lab_us-gaap_EquityMethodInvestmentSoldCarryingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherAssetsNoncurrent_2365d765-9b6c-4710-a2b5-852d73094e2e_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_OtherAssetsNoncurrent_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Assets, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsNoncurrent" xlink:to="lab_us-gaap_OtherAssetsNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_b83e7459-7825-42bc-b371-1126dfb8c495_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Threshold percentage of stock price trigger</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:to="lab_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_bdcd0f5c-46e2-4535-a5a5-dad40ac96ea6_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock in connection with equity offering, net of offering costs</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, New Issues</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_012a904d-a9cf-45c4-86ca-7434c4cc5c18_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:to="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_1de856e1-e5eb-47c8-ba04-0453a7a2abc7_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net share settlement of equity awards (in shares)</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Assets_e5c937fe-53f4-4af0-9571-c9fb40e1e2db_totalLabel_en-US" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_us-gaap_Assets_label_en-US" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets" xlink:to="lab_us-gaap_Assets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_b21043b1-c12f-467a-977b-9059c7e44aa7_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related-Party Transactions</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_StatementScenarioAxis_43aaf844-14a8-4167-a40d-fea252820880_terseLabel_en-US" xlink:label="lab_srt_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:label id="lab_srt_StatementScenarioAxis_label_en-US" xlink:label="lab_srt_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementScenarioAxis" xlink:to="lab_srt_StatementScenarioAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestExpenseDebt_c03d6dae-2cd8-4e1b-aa81-c355d4b721a7_totalLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total interest expense</link:label>
    <link:label id="lab_us-gaap_InterestExpenseDebt_label_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Expense, Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDebt" xlink:to="lab_us-gaap_InterestExpenseDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_3f7bb966-bd01-4108-b10c-19c6e13df734_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of RSUs and PSUs Outstanding, Beginning (shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_330f714a-90ca-41ae-86be-a4a7116b97ad_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of RSUs and PSUs Outstanding, Ending (shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_eeed5340-e0fc-4eee-ab83-88b44c469fe5_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_CheggServicesMember_4b90d2e9-3747-4387-8ab8-f471e07b1334_terseLabel_en-US" xlink:label="lab_chgg_CheggServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Chegg Services</link:label>
    <link:label id="lab_chgg_CheggServicesMember_label_en-US" xlink:label="lab_chgg_CheggServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Chegg Services [Member]</link:label>
    <link:label id="lab_chgg_CheggServicesMember_documentation_en-US" xlink:label="lab_chgg_CheggServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Chegg Services [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CheggServicesMember" xlink:href="chgg-20210331.xsd#chgg_CheggServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_CheggServicesMember" xlink:to="lab_chgg_CheggServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_b6811855-f66e-4d3b-be8d-579cf553165c_terseLabel_en-US" xlink:label="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt conversion, shares issued (in shares)</link:label>
    <link:label id="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_label_en-US" xlink:label="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Conversion, Converted Instrument, Shares Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:to="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_f0c0a48a-6c62-46b6-8b62-0fefe252e379_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeAxis" xlink:to="lab_us-gaap_SubsequentEventTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_16050011-7345-46cc-bb01-e20a60ccb570_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities [Axis]</link:label>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_120f04df-20fb-4e2f-8864-fff3dd0e7ebd_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Background and Basis of Presentation</link:label>
    <link:label id="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_label_en-US" xlink:label="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Description and Basis of Presentation [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:to="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CostOfSalesMember_a575662b-9c07-4517-9b78-da88d4dc12b8_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfSalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of revenues</link:label>
    <link:label id="lab_us-gaap_CostOfSalesMember_label_en-US" xlink:label="lab_us-gaap_CostOfSalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of Sales [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostOfSalesMember" xlink:to="lab_us-gaap_CostOfSalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ChiefExecutiveOfficerMember_dd95e530-fc7c-4e75-85ff-26accdf9c85d_terseLabel_en-US" xlink:label="lab_srt_ChiefExecutiveOfficerMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Chief Executive Officer</link:label>
    <link:label id="lab_srt_ChiefExecutiveOfficerMember_label_en-US" xlink:label="lab_srt_ChiefExecutiveOfficerMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Chief Executive Officer [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ChiefExecutiveOfficerMember" xlink:to="lab_srt_ChiefExecutiveOfficerMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_VestingDomain_942566c4-5df1-43d2-8dc7-1454074fa5e3_terseLabel_en-US" xlink:label="lab_us-gaap_VestingDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting [Domain]</link:label>
    <link:label id="lab_us-gaap_VestingDomain_label_en-US" xlink:label="lab_us-gaap_VestingDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VestingDomain" xlink:to="lab_us-gaap_VestingDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_f25f9bec-1004-4bf0-83ce-f8e152e05baa_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from the Offering</link:label>
    <link:label id="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_label_en-US" xlink:label="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock, Consideration Received on Transaction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:to="lab_us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShortTermInvestmentsMember_756087a7-a0e8-4a4b-a898-5eeea772e9f3_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term investments:</link:label>
    <link:label id="lab_us-gaap_ShortTermInvestmentsMember_label_en-US" xlink:label="lab_us-gaap_ShortTermInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term Investments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestmentsMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermInvestmentsMember" xlink:to="lab_us-gaap_ShortTermInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductOrServiceAxis_adf586c0-44be-488c-b035-8ff419494252_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:label id="lab_srt_ProductOrServiceAxis_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis" xlink:to="lab_srt_ProductOrServiceAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_7017b298-8b95-4cf5-9e46-e03a6009dbfd_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Market value per share price minimum threshold (in dollars per share)</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Market Value Per Share Price Minimum Threshold</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Market Value Per Share Price Minimum Threshold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Liabilities_aaa2f4e8-076f-4e07-9a58-05514c24e723_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_us-gaap_Liabilities_label_en-US" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities" xlink:to="lab_us-gaap_Liabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentTypeAxis_62480344-23fa-4e8b-8635-c6c3a3fd2ac3_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentTypeAxis_label_en-US" xlink:label="lab_us-gaap_InvestmentTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentTypeAxis" xlink:to="lab_us-gaap_InvestmentTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_ece31bdd-1f42-48f8-b8ad-f43b0f229c1d_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted average vesting period for recognition of compensation expense</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_0b650df9-4cde-493f-8a1a-5d08d70bcba4_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Expected volatility</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingencyDamagesSoughtValue_ea42f02e-e782-47dc-9007-18364a361b04_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyDamagesSoughtValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss contingency, damages sought, value</link:label>
    <link:label id="lab_us-gaap_LossContingencyDamagesSoughtValue_label_en-US" xlink:label="lab_us-gaap_LossContingencyDamagesSoughtValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, Damages Sought, Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyDamagesSoughtValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyDamagesSoughtValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyDamagesSoughtValue" xlink:to="lab_us-gaap_LossContingencyDamagesSoughtValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_706a4095-e903-4a1d-8d9f-ba0bb813da51_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule Of Related Party Transactions By Related Party [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Related Party Transactions, by Related Party [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_64807f2a-7b8d-4161-8bb7-2c5017261831_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with customer, liability, revenue recognized</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:to="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_6299c945-5d45-4c0c-980a-82788c8e09b1_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_426d5487-318d-482c-8d8e-bcd3c314397c_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Level 1</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member" xlink:to="lab_us-gaap_FairValueInputsLevel1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_GuaranteesAndIndemnificationsAbstract_21c876d1-5577-46f1-8c97-0a48d7cf3a08_terseLabel_en-US" xlink:label="lab_chgg_GuaranteesAndIndemnificationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Guarantees And Indemnifications [Abstract]</link:label>
    <link:label id="lab_chgg_GuaranteesAndIndemnificationsAbstract_label_en-US" xlink:label="lab_chgg_GuaranteesAndIndemnificationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Guarantees And Indemnifications [Abstract]</link:label>
    <link:label id="lab_chgg_GuaranteesAndIndemnificationsAbstract_documentation_en-US" xlink:label="lab_chgg_GuaranteesAndIndemnificationsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Guarantees and indemnifications.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_GuaranteesAndIndemnificationsAbstract" xlink:href="chgg-20210331.xsd#chgg_GuaranteesAndIndemnificationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_GuaranteesAndIndemnificationsAbstract" xlink:to="lab_chgg_GuaranteesAndIndemnificationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_57c25913-7bf0-4495-8f0f-bfd3acf94d43_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Recurring and Nonrecurring [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Recurring and Nonrecurring [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_e2d49aeb-a39f-46e0-a08e-5ef87d4c0eb5_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted cash included in other assets</link:label>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Cash and Cash Equivalents, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_b4c1499d-1e09-4370-b676-1bf8b58e7467_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Accounts Payable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayable" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_08bb3898-88e3-4aa2-a455-4f0a46a7a130_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Shares Outstanding</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentAxis_0207999e-a0aa-44e5-a948-6baede95f6af_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentAxis_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentAxis" xlink:to="lab_us-gaap_DebtInstrumentAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_56b83981-d01e-4407-b796-d7309ad71a0a_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid-In Capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_c041743b-4362-48d2-b5dd-dc3dd68328ec_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest expense, net</link:label>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_label_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Income (Expense), Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseNet" xlink:to="lab_us-gaap_InterestIncomeExpenseNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_61d5d1f9-e1a7-4638-9610-92eea0d3dad7_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Other Nonoperating Income (Expense)</link:label>
    <link:label id="lab_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Other Nonoperating Income (Expense) [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesNameDomain_9872930e-9388-479c-b304-3f1a151303d5_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesNameDomain_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="lab_us-gaap_AntidilutiveSecuritiesNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueLineItems_8e7eafff-a843-4a66-a88d-72d883d4fc04_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Line Items]</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueLineItems_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems" xlink:to="lab_us-gaap_DisaggregationOfRevenueLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_4404a60b-b82c-4654-8523-80141f37a8cc_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Accrued Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByAssetClassAxis_5cf13505-49be-4ca7-944a-257f1c1e9932_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Asset Class [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByAssetClassAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Asset Class [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByAssetClassAxis" xlink:to="lab_us-gaap_FairValueByAssetClassAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeLiabilities_cc88b3a4-7262-4530-9b8f-0357d092d20a_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative liability</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilities_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilities" xlink:to="lab_us-gaap_DerivativeLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_b0404501-6e3b-4616-80f0-4e0c5799ec73_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments to reconcile net loss to net cash provided by operating activities:</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_LitigationCaseAxis_12ce7814-a790-4d0d-ab67-b9b932da8be8_terseLabel_en-US" xlink:label="lab_srt_LitigationCaseAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Case [Axis]</link:label>
    <link:label id="lab_srt_LitigationCaseAxis_label_en-US" xlink:label="lab_srt_LitigationCaseAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Case [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_LitigationCaseAxis" xlink:to="lab_srt_LitigationCaseAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerAbstract_6bfe9a99-f84f-462d-9786-8c18ae3d9b4b_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer [Abstract]</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerAbstract_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_7805263a-e6ad-4b14-9915-6dc80d9be0c7_terseLabel_en-US" xlink:label="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in total net revenues, percent</link:label>
    <link:label id="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_label_en-US" xlink:label="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease), Percent</link:label>
    <link:label id="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_documentation_en-US" xlink:label="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease), Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" xlink:href="chgg-20210331.xsd#chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" xlink:to="lab_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_187b05dc-f512-4786-aff4-722dfc12b6f0_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_ff029175-546c-44c0-b975-30f44ecf0487_periodStartLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Beginning balance (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_b46cb1ac-4e13-4478-b25e-a8ee18fece62_periodEndLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ending balance (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Shares, Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding" xlink:to="lab_us-gaap_CommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsLineItems_9fae83d9-591e-4f5c-acfb-825e5ef06c6e_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Investments [Line Items]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsLineItems_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Investments [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems" xlink:to="lab_us-gaap_ScheduleOfInvestmentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ResearchAndDevelopmentExpense_f02dbe33-6855-4ba2-994d-b3f8181bcedc_terseLabel_en-US" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Research and development</link:label>
    <link:label id="lab_us-gaap_ResearchAndDevelopmentExpense_label_en-US" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Research and Development Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:to="lab_us-gaap_ResearchAndDevelopmentExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsequentEventMember_c5f1e462-d31b-48a3-a0c7-459b50942b77_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event</link:label>
    <link:label id="lab_us-gaap_SubsequentEventMember_label_en-US" xlink:label="lab_us-gaap_SubsequentEventMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventMember" xlink:to="lab_us-gaap_SubsequentEventMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_4f3584be-c995-4b01-9d24-8309403daeb6_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt conversion, equity instruments issued, amount</link:label>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_label_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Debt Conversion, Equity Instruments Issued, Amount</link:label>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Debt Conversion, Equity Instruments Issued, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" xlink:to="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_d58459d0-20f6-4e12-98d5-1c169e6129a7_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Acquisition of business, net of cash acquired</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_d915698c-d66c-4c6c-88ec-941960c6a38a_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, shares authorized (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Shares Authorized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesAuthorized" xlink:to="lab_us-gaap_CommonStockSharesAuthorized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_612deb84-fa8c-484c-a23a-fff4bc7ad405_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Summary of Restricted Stock Unit Activity</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareBasicLineItems_5c1cfa18-0af8-4b6e-96b1-3f21d32e1d11_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareBasicLineItems_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems" xlink:to="lab_us-gaap_EarningsPerShareBasicLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestExpenseDebtExcludingAmortization_b5bfac5d-7f83-4c3f-b9de-73b56aee6939_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contractual interest expense</link:label>
    <link:label id="lab_us-gaap_InterestExpenseDebtExcludingAmortization_label_en-US" xlink:label="lab_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Expense, Debt, Excluding Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:to="lab_us-gaap_InterestExpenseDebtExcludingAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_65ff0a0a-df8a-4707-a796-bd05f27fe7b1_terseLabel_en-US" xlink:label="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimated Fair Value</link:label>
    <link:label id="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_label_en-US" xlink:label="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimate of Fair Value Measurement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:to="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeStatementAbstract_0cf62322-dd84-4223-9615-da49def0c3c6_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementAbstract_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="lab_us-gaap_IncomeStatementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_5e4877f9-18ee-4ebb-8df4-6c7cd6301a82_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive (Loss) Income</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">AOCI Attributable to Parent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_217b74a2-6523-4f3a-a2f1-a0c7e1f709c7_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Liability, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_b5b7f353-2de7-4771-a077-f9329bf74e85_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Intangible assets</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock_40b13ffd-eb62-4638-ae47-7f3a3b74880e_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Cash Equivalents and Investments</link:label>
    <link:label id="lab_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Cash Equivalents and Investments [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UseOfEstimates_b9987ddc-662f-493d-b4c3-4d94efec385e_terseLabel_en-US" xlink:label="lab_us-gaap_UseOfEstimates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Use of Estimates</link:label>
    <link:label id="lab_us-gaap_UseOfEstimates_label_en-US" xlink:label="lab_us-gaap_UseOfEstimates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UseOfEstimates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UseOfEstimates" xlink:to="lab_us-gaap_UseOfEstimates" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_b8ce5760-5ba7-4a5b-83f3-29a1fcb00cc5_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="lab_us-gaap_AssetsCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_04adadfb-b43b-47bd-9bca-a2ffca623053_terseLabel_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Remaining under repurchase program</link:label>
    <link:label id="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_label_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Repurchase Program, Remaining Authorized Repurchase Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:to="lab_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_7a4cd7a6-160c-4a42-b90e-acebaaf08ad4_totalLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total comprehensive loss</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="lab_us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_637602e7-df2c-44f5-9917-e3b225cfb58e_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividend yield</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_48e33765-b227-4e53-ba66-b067b352a00d_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, par value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_label_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="lab_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_CappedCallMember_7a6ad735-42df-4835-b716-167bca9a587c_terseLabel_en-US" xlink:label="lab_chgg_CappedCallMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Capped Call</link:label>
    <link:label id="lab_chgg_CappedCallMember_label_en-US" xlink:label="lab_chgg_CappedCallMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Capped Call [Member]</link:label>
    <link:label id="lab_chgg_CappedCallMember_documentation_en-US" xlink:label="lab_chgg_CappedCallMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Capped Call [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CappedCallMember" xlink:href="chgg-20210331.xsd#chgg_CappedCallMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_CappedCallMember" xlink:to="lab_chgg_CappedCallMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScenarioUnspecifiedDomain_99cb17f5-0c17-4164-b0f0-4cb540d2e8f7_terseLabel_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:label id="lab_srt_ScenarioUnspecifiedDomain_label_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioUnspecifiedDomain" xlink:to="lab_srt_ScenarioUnspecifiedDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_f4a0090d-7ace-46f1-ba41-e9879baa7ba3_terseLabel_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_label_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_31288051-bf20-4bfb-93a4-56c1a0f96ab0_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchases of property and equipment</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_54948909-8b8e-452a-8ea6-a745bb5d94cb_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_d9e83e09-e0e2-405f-b218-9e4dc6e9aba5_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowOperatingActivitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash paid for amounts included in the measurement of lease liabilities:</link:label>
    <link:label id="lab_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_label_en-US" xlink:label="lab_us-gaap_CashFlowOperatingActivitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Operating Activities, Lessee [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashFlowOperatingActivitiesLesseeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract" xlink:to="lab_us-gaap_CashFlowOperatingActivitiesLesseeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_80a3d830-8cc0-4b7f-8293-2ee45d3ccf3e_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent_9290c333-d30c-499e-bc02-1a45b7da7324_terseLabel_en-US" xlink:label="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in accounts receivable, percent</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent_label_en-US" xlink:label="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Accounts Receivable, Percent</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent_documentation_en-US" xlink:label="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Accounts Receivable, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseinAccountsReceivablePercent" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseinAccountsReceivablePercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_IncreaseDecreaseinAccountsReceivablePercent" xlink:to="lab_chgg_IncreaseDecreaseinAccountsReceivablePercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockRepurchaseProgramAuthorizedAmount1_3e06559e-60f1-48c7-b131-fdf79c6aa47a_terseLabel_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock repurchase program, authorized amount</link:label>
    <link:label id="lab_us-gaap_StockRepurchaseProgramAuthorizedAmount1_label_en-US" xlink:label="lab_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Repurchase Program, Authorized Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:to="lab_us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTableTextBlock_b97c3f5b-6a0c-4ce1-9e7b-ecbc78ba0a2c_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTableTextBlock_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:to="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_9f4a0613-4279-447c-a5ef-f6b58c6b2d9c_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss before provision for income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTable_49889a15-58a5-4e64-8d2d-38f904f15238_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table]</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTable_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable" xlink:to="lab_us-gaap_DisaggregationOfRevenueTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_0509ea70-7a0d-4e9f-adf1-e336880efea3_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based compensation expense capitalized</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Amount Capitalized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_6f409aa5-b106-4217-94e6-b34092ec54cc_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="lab_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensation_2a3394f2-445f-4946-8591-bb203648aef5_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Noncash Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation" xlink:to="lab_us-gaap_ShareBasedCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_68a1ba8c-d4de-42a6-b2fc-457dfdaa42bc_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment of taxes related to the net share settlement of equity awards</link:label>
    <link:label id="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_label_en-US" xlink:label="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment, Tax Withholding, Share-based Payment Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:to="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PaymentToPurchasesTextbooks_aba2be1c-c91d-49d7-be32-96ae20b8251a_negatedTerseLabel_en-US" xlink:label="lab_chgg_PaymentToPurchasesTextbooks" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchases of textbooks</link:label>
    <link:label id="lab_chgg_PaymentToPurchasesTextbooks_label_en-US" xlink:label="lab_chgg_PaymentToPurchasesTextbooks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment To Purchases Textbooks</link:label>
    <link:label id="lab_chgg_PaymentToPurchasesTextbooks_documentation_en-US" xlink:label="lab_chgg_PaymentToPurchasesTextbooks" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment to purchases textbooks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentToPurchasesTextbooks" xlink:href="chgg-20210331.xsd#chgg_PaymentToPurchasesTextbooks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PaymentToPurchasesTextbooks" xlink:to="lab_chgg_PaymentToPurchasesTextbooks" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_3d152047-1bfd-4cfa-a918-46f1e38f9dd2_terseLabel_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_93537e2d-087b-4f2a-a0fb-1c63268aa661_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Domain]</link:label>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebt_7493b446-d74a-4523-ad80-48a7f327c937_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Carrying amount</link:label>
    <link:label id="lab_us-gaap_LongTermDebt_label_en-US" xlink:label="lab_us-gaap_LongTermDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebt" xlink:to="lab_us-gaap_LongTermDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DueToOfficersOrStockholdersCurrent_ea47e04e-5065-4830-aaa1-c048a2c5676f_terseLabel_en-US" xlink:label="lab_us-gaap_DueToOfficersOrStockholdersCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due to related parties</link:label>
    <link:label id="lab_us-gaap_DueToOfficersOrStockholdersCurrent_label_en-US" xlink:label="lab_us-gaap_DueToOfficersOrStockholdersCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due to Officers or Stockholders, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToOfficersOrStockholdersCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DueToOfficersOrStockholdersCurrent" xlink:to="lab_us-gaap_DueToOfficersOrStockholdersCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_46a79787-0bf3-4d6b-aa87-5830248c0af7_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in deferred revenue</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Contract with Customer, Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:to="lab_us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_bc179b2c-4a3b-458b-92a0-630c48ce730a_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInDeferredRevenue_3d020dea-af76-464f-8070-a041105053d7_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred revenue</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInDeferredRevenue_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Deferred Revenue</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="lab_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5e5ed285-7fa5-49d1-aa5f-1a14b5cf70c1_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:to="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_e6dbc0f7-374e-44c0-b682-b6e4dd3f065a_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_5e20524b-5835-450a-957a-6df5d5958299_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total, Fair Value</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_0534146b-971d-4067-9dec-d72e53135d39_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:to="lab_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_acef14bf-6019-4a75-bc40-3b5bc7a5be25_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_us-gaap_StatementEquityComponentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount_de54b33e-bcf5-4797-a5f2-6373acd9447a_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Repurchased principal amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Repurchased Face Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:to="lab_us-gaap_DebtInstrumentRepurchasedFaceAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_3013824b-b98f-4180-a38c-e7ba461fdccb_terseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement [Abstract]</link:label>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_1cc8ec9d-38bf-428c-b9b2-e1cf576882d5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="lab_us-gaap_DebtInstrumentNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MinimumMember_2f2136bc-7c91-4713-9721-bac4d9e8ee33_terseLabel_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Minimum</link:label>
    <link:label id="lab_srt_MinimumMember_label_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MinimumMember" xlink:to="lab_srt_MinimumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_2e25cb37-38b8-4cb9-9cd6-8c7fd230db81_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Acquired assets</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_2c18b35f-7b3e-4180-be40-1939d2328e83_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Liability, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_3ac0b841-0853-4bef-889b-2874920f5481_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrecognized compensation costs related to restricted stock units</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_bf570a02-d5ae-45c0-a311-294546784e03_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Grant Date Fair Value, Canceled (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_601c9fd4-1a48-492c-acdb-cd97ecf13264_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent" xlink:to="lab_dei_EntityInteractiveDataCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CorporateBondSecuritiesMember_3c3da52a-5ad3-4ed3-b4b0-040006d587fe_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateBondSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate debt securities</link:label>
    <link:label id="lab_us-gaap_CorporateBondSecuritiesMember_label_en-US" xlink:label="lab_us-gaap_CorporateBondSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate Bond Securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CorporateBondSecuritiesMember" xlink:to="lab_us-gaap_CorporateBondSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_062934a9-9830-4b4a-8b02-1d032ec2299f_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurement</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Disclosures [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_17afdc71-b578-4cb7-b326-aa6c27a4f614_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash flows from operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PayPalHoldingsInc.Member_7c89c9f1-662c-440f-a726-dcfc83c98ca7_terseLabel_en-US" xlink:label="lab_chgg_PayPalHoldingsInc.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PayPal Holdings, Inc.</link:label>
    <link:label id="lab_chgg_PayPalHoldingsInc.Member_label_en-US" xlink:label="lab_chgg_PayPalHoldingsInc.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PayPal Holdings, Inc. [Member]</link:label>
    <link:label id="lab_chgg_PayPalHoldingsInc.Member_documentation_en-US" xlink:label="lab_chgg_PayPalHoldingsInc.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PayPal Holdings, Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PayPalHoldingsInc.Member" xlink:href="chgg-20210331.xsd#chgg_PayPalHoldingsInc.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PayPalHoldingsInc.Member" xlink:to="lab_chgg_PayPalHoldingsInc.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_dbb77228-19ba-4d0e-a0e5-164db4638d0f_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Expense</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:to="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_A2018DataIncidentArbitrationDemandsMember_30cb5f16-292d-43f2-aa6b-4c69e1bbcb34_terseLabel_en-US" xlink:label="lab_chgg_A2018DataIncidentArbitrationDemandsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2018 Data Incident, Arbitration Demands</link:label>
    <link:label id="lab_chgg_A2018DataIncidentArbitrationDemandsMember_label_en-US" xlink:label="lab_chgg_A2018DataIncidentArbitrationDemandsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2018 Data Incident, Arbitration Demands [Member]</link:label>
    <link:label id="lab_chgg_A2018DataIncidentArbitrationDemandsMember_documentation_en-US" xlink:label="lab_chgg_A2018DataIncidentArbitrationDemandsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2018 Data Incident, Arbitration Demands</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A2018DataIncidentArbitrationDemandsMember" xlink:href="chgg-20210331.xsd#chgg_A2018DataIncidentArbitrationDemandsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_A2018DataIncidentArbitrationDemandsMember" xlink:to="lab_chgg_A2018DataIncidentArbitrationDemandsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_852f78df-c002-43a4-8608-4eaddfef2175_terseLabel_en-US" xlink:label="lab_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect, Period of Adoption, Adjustment</link:label>
    <link:label id="lab_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_label_en-US" xlink:label="lab_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect, Period of Adoption, Adjustment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember" xlink:to="lab_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalCommonStock_291bcdbc-d428-45d0-b59c-4d5e79af79b5_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional paid-in capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalCommonStock_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid in Capital, Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_3bf2a728-e33b-43ec-8f29-3590764d5221_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_764da800-2990-49f8-8be7-0fa1066cb477_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeDomain" xlink:to="lab_us-gaap_SubsequentEventTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessAcquisitionLineItems_d58334d9-fa19-473e-b3b3-ee54fbcdf5ec_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition [Line Items]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionLineItems_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems" xlink:to="lab_us-gaap_BusinessAcquisitionLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_846d65e1-240c-471c-9c13-5b5f17dc1a6e_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_29290290-d435-4d7f-9ffc-9eb14365768d_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Other Operating Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredFinanceCostsNet_b4a70357-9bd8-4b05-98ea-c3ae2de43f29_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unamortized issuance costs</link:label>
    <link:label id="lab_us-gaap_DeferredFinanceCostsNet_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Issuance Costs, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFinanceCostsNet" xlink:to="lab_us-gaap_DeferredFinanceCostsNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsTable_479c4446-4055-4584-9e4f-4bc1c2aaf1ff_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Investments [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInvestmentsTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInvestmentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Investments [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable" xlink:to="lab_us-gaap_ScheduleOfInvestmentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_117ee9ff-1201-484e-8ec0-bb39ffdcd34c_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due in 1 year or less, Cost</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_2273c6e4-2729-415e-9a31-7959a11f2dac_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock issued as percent of target level of achieving maximum average market value</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_2f5ca538-d71a-461b-8690-0bb2b2241f44_terseLabel_en-US" xlink:label="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Underwriting discounts and commissions</link:label>
    <link:label id="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_label_en-US" xlink:label="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Of Stock, Underwriting Discounts And Commissions</link:label>
    <link:label id="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_documentation_en-US" xlink:label="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Of Stock, Underwriting Discounts And Commissions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SaleOfStockUnderwritingDiscountsAndCommissions" xlink:href="chgg-20210331.xsd#chgg_SaleOfStockUnderwritingDiscountsAndCommissions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_SaleOfStockUnderwritingDiscountsAndCommissions" xlink:to="lab_chgg_SaleOfStockUnderwritingDiscountsAndCommissions" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ResearchAndDevelopmentExpenseMember_64738026-a8a4-4219-b523-5a75117a8859_terseLabel_en-US" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Research and development</link:label>
    <link:label id="lab_us-gaap_ResearchAndDevelopmentExpenseMember_label_en-US" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Research and Development Expense [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:to="lab_us-gaap_ResearchAndDevelopmentExpenseMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_4f288257-318c-4f63-a65e-cdb31ad69853_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock upon conversions of 2023 notes</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, Conversion of Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_5c259b0d-d6dc-409c-adda-6e7abb851754_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_10aea5e1-a97f-481c-abda-9575d6555883_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable, net of allowance of $169 and $153 at March&#160;31, 2021 and December&#160;31, 2020, respectively</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_8ea07db8-f3cc-4df9-8f1d-caf6f9cf2a11_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable, net</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent" xlink:to="lab_us-gaap_AccountsReceivableNetCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_51ed7313-6b5a-4ec5-ad8f-f06963401c9e_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Threshold trading days</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Threshold Trading Days</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:to="lab_us-gaap_DebtInstrumentConvertibleThresholdTradingDays" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLeaseIncome_299ec240-4b1c-4fbf-a643-4d185af1a2ca_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLeaseIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease income</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLeaseIncome_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLeaseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Lease Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLeaseIncome" xlink:to="lab_us-gaap_OperatingLeaseLeaseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_cb2c98f2-5ff0-4061-9976-f3dc7e703b9a_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments for New Accounting Pronouncements [Axis]</link:label>
    <link:label id="lab_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_label_en-US" xlink:label="lab_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Standards Update [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:to="lab_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_c8a5aa9c-8899-4cc0-8885-e2800010950d_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrealized Loss</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_36bdf490-0f88-467a-8828-f44e8aa868e2_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_label_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis" xlink:to="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_593cd850-cc52-4def-8c3d-34d53665afed_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_f46e2a63-1aab-44d6-bddc-0b68653657ee_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted average shares used to compute net loss per share, basic and diluted</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic and Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="lab_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_9d0e4d35-224c-4b3d-9113-b18460f3f881_terseLabel_en-US" xlink:label="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0.25% Convertible Senior Notes Due 2023</link:label>
    <link:label id="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_label_en-US" xlink:label="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0.25 Percent Convertible Senior Notes Due 2023 [Member]</link:label>
    <link:label id="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_documentation_en-US" xlink:label="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0.25 Percent Convertible Senior Notes Due 2023 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" xlink:to="lab_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Goodwill_9317d4c3-1576-4362-980d-e5e32ca3e2fe_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_us-gaap_Goodwill_label_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill" xlink:to="lab_us-gaap_Goodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_8b3b84d6-b592-4614-809f-70192764779f_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale [Line Items]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:to="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_1b40c1c7-11b3-44f8-b3c4-7916aebebdf9_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due in 1 year or less, Fair Value</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_c1798a1a-a7a2-484b-b445-66063e46606f_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other comprehensive loss</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentTransitionReport_352b152e-d174-464b-bc94-d77381abbb59_terseLabel_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Transition Report</link:label>
    <link:label id="lab_dei_DocumentTransitionReport_label_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Transition Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentTransitionReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentTransitionReport" xlink:to="lab_dei_DocumentTransitionReport" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_9dac41bd-00cc-49dd-ba7d-2a79868552c0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_b0adb05e-4f58-44bb-840c-a8fde6d66fe3_terseLabel_en-US" xlink:label="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PSUs and RSUs</link:label>
    <link:label id="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_label_en-US" xlink:label="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock Units (RSUs) And Performance Share Units (PSUs) [Member]</link:label>
    <link:label id="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_documentation_en-US" xlink:label="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock Units (RSUs) And Performance Share Units (PSUs)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" xlink:to="lab_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_98e949f1-951e-4531-9935-fa1a5010582b_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetIncomeLossAbstract_bc080b43-657c-492d-a316-c387e9f826e2_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Numerator:</link:label>
    <link:label id="lab_us-gaap_NetIncomeLossAbstract_label_en-US" xlink:label="lab_us-gaap_NetIncomeLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Income (Loss) Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAbstract" xlink:to="lab_us-gaap_NetIncomeLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_d09d565a-1695-40e7-8f66-eb54bac6bedb_terseLabel_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest expense, net and other (expense) income, net:</link:label>
    <link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_label_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nonoperating Income (Expense) [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="lab_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_a16dae8a-3a99-4aae-a5df-497b7aad19d1_terseLabel_en-US" xlink:label="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0.125% Convertible Senior Notes Due 2025</link:label>
    <link:label id="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_label_en-US" xlink:label="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0.125 Percent Convertible Senior Notes Due 2025 [Member]</link:label>
    <link:label id="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_documentation_en-US" xlink:label="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0.125 Percent Convertible Senior Notes Due 2025 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" xlink:to="lab_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_74137a0d-dd0c-4183-a936-435bf61a8760_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted cash included in other current assets</link:label>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Cash and Cash Equivalents, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_b611f2fb-5a99-4433-bcc9-665557ff64ae_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Face value</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_b46f85b1-14c3-4ad4-b857-e0b1a9d924b8_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Principal</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentFaceAmount" xlink:to="lab_us-gaap_DebtInstrumentFaceAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_e4565b3b-03bd-4820-a21a-b30fc959780f_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Level 2</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member" xlink:to="lab_us-gaap_FairValueInputsLevel2Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_255c614a-6fcb-4b85-a931-04e7a7d7e964_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurements, Nonrecurring</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurements, Nonrecurring [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherAssetsCurrent_4e9b00e5-3a65-4528-a0ff-90ffee1504c2_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current assets</link:label>
    <link:label id="lab_us-gaap_OtherAssetsCurrent_label_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Assets, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsCurrent" xlink:to="lab_us-gaap_OtherAssetsCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentQuarterlyReport_ad527092-121c-433a-a934-85d376abb155_terseLabel_en-US" xlink:label="lab_dei_DocumentQuarterlyReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Quarterly Report</link:label>
    <link:label id="lab_dei_DocumentQuarterlyReport_label_en-US" xlink:label="lab_dei_DocumentQuarterlyReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Quarterly Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentQuarterlyReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentQuarterlyReport" xlink:to="lab_dei_DocumentQuarterlyReport" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_VestingAxis_a446ffe9-2465-4cbc-a165-3f77611e770f_terseLabel_en-US" xlink:label="lab_us-gaap_VestingAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting [Axis]</link:label>
    <link:label id="lab_us-gaap_VestingAxis_label_en-US" xlink:label="lab_us-gaap_VestingAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VestingAxis" xlink:to="lab_us-gaap_VestingAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_TechnologyCompanyMember_7e9df085-329d-4c7e-8c7b-f86306ab3217_terseLabel_en-US" xlink:label="lab_chgg_TechnologyCompanyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Technology Company</link:label>
    <link:label id="lab_chgg_TechnologyCompanyMember_label_en-US" xlink:label="lab_chgg_TechnologyCompanyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Technology Company [Member]</link:label>
    <link:label id="lab_chgg_TechnologyCompanyMember_documentation_en-US" xlink:label="lab_chgg_TechnologyCompanyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Technology Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TechnologyCompanyMember" xlink:href="chgg-20210331.xsd#chgg_TechnologyCompanyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_TechnologyCompanyMember" xlink:to="lab_chgg_TechnologyCompanyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_e53621e8-7615-4713-8ecb-0610fa25a1a0_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Asset Class [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Asset Class [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpenseMember_f888f3f7-ee33-4b06-8ba3-ecfde2bb6523_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">General and administrative</link:label>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpenseMember_label_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">General and Administrative Expense [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:to="lab_us-gaap_GeneralAndAdministrativeExpenseMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsFairValueDisclosure_1f6a6785-3aff-4673-bf9e-241a6b56e149_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total assets measured and recorded at fair value</link:label>
    <link:label id="lab_us-gaap_AssetsFairValueDisclosure_label_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets, Fair Value Disclosure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsFairValueDisclosure" xlink:to="lab_us-gaap_AssetsFairValueDisclosure" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnderlyingAssetClassDomain_b2140213-553b-44c1-99e9-55e697617805_terseLabel_en-US" xlink:label="lab_us-gaap_UnderlyingAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Underlying Asset Class [Domain]</link:label>
    <link:label id="lab_us-gaap_UnderlyingAssetClassDomain_label_en-US" xlink:label="lab_us-gaap_UnderlyingAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Underlying Asset Class [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain" xlink:to="lab_us-gaap_UnderlyingAssetClassDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_e2878b2e-b6bb-4087-8f5f-46bfefa6599c_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="lab_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_e68b409c-bdb6-4ba0-9848-d48cdc5d57e0_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-cash investing and financing activities:</link:label>
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_0342776a-22f4-4cd8-868e-9f356a91506a_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred revenue</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Liability, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:to="lab_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountingStandardsUpdateExtensibleList_13bb50c3-3252-4f26-8e7d-f4f79c3f73ae_terseLabel_en-US" xlink:label="lab_us-gaap_AccountingStandardsUpdateExtensibleList" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting standards update</link:label>
    <link:label id="lab_us-gaap_AccountingStandardsUpdateExtensibleList_label_en-US" xlink:label="lab_us-gaap_AccountingStandardsUpdateExtensibleList" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Standards Update [Extensible List]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingStandardsUpdateExtensibleList" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountingStandardsUpdateExtensibleList"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountingStandardsUpdateExtensibleList" xlink:to="lab_us-gaap_AccountingStandardsUpdateExtensibleList" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CumulativeEffectPeriodOfAdoptionAxis_a4c615d7-20c7-4670-876d-5b02370d784a_terseLabel_en-US" xlink:label="lab_srt_CumulativeEffectPeriodOfAdoptionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect, Period of Adoption [Axis]</link:label>
    <link:label id="lab_srt_CumulativeEffectPeriodOfAdoptionAxis_label_en-US" xlink:label="lab_srt_CumulativeEffectPeriodOfAdoptionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect, Period of Adoption [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis" xlink:to="lab_srt_CumulativeEffectPeriodOfAdoptionAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1_97fc3761-aecb-4210-8743-6f50f9aa0af5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Conversion price</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Conversion Price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:to="lab_us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_469e1c74-54f4-453a-abbc-3a3833ae5b30_terseLabel_en-US" xlink:label="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due in 1-2 years, Fair Value</link:label>
    <link:label id="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_label_en-US" xlink:label="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Year One Through Two, Fair Value</link:label>
    <link:label id="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_documentation_en-US" xlink:label="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Year One Through Two, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" xlink:href="chgg-20210331.xsd#chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" xlink:to="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_3b3075d1-4526-4471-979c-3d3dc1425742_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unamortized debt discount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Unamortized Discount (Premium), Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:to="lab_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_LitigationCaseTypeDomain_cb537560-d21e-4b04-aa79-b8e24951aac0_terseLabel_en-US" xlink:label="lab_srt_LitigationCaseTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Case [Domain]</link:label>
    <link:label id="lab_srt_LitigationCaseTypeDomain_label_en-US" xlink:label="lab_srt_LitigationCaseTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Case [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_LitigationCaseTypeDomain" xlink:to="lab_srt_LitigationCaseTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidExpensesOther_47013778-f9e7-4e4d-882d-677b3a03b908_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidExpensesOther" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid expenses and other current assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidExpensesOther_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidExpensesOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Prepaid Expenses, Other</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpensesOther" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpensesOther"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInPrepaidExpensesOther" xlink:to="lab_us-gaap_IncreaseDecreaseInPrepaidExpensesOther" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_d927b2b7-ca75-4984-bc40-0c0ca1e74454_terseLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Expected term</link:label>
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_label_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_e123bcc7-ccef-4782-9e1c-c665651708b7_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_189706e9-49a2-4a60-b733-ffc27c5e8458_negatedLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of RSUs and PSUs, Canceled (shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtDisclosureAbstract_68128d19-25e5-4213-87bd-863217dfaed8_terseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:label id="lab_us-gaap_DebtDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureAbstract" xlink:to="lab_us-gaap_DebtDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SellingAndMarketingExpense_30187e92-f9db-47f0-85e2-8554b29a0c70_terseLabel_en-US" xlink:label="lab_us-gaap_SellingAndMarketingExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sales and marketing</link:label>
    <link:label id="lab_us-gaap_SellingAndMarketingExpense_label_en-US" xlink:label="lab_us-gaap_SellingAndMarketingExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Selling and Marketing Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SellingAndMarketingExpense" xlink:to="lab_us-gaap_SellingAndMarketingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_19c9a083-03b3-47a2-99c0-1be6e6827685_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock issued based on achieving target levels (in shares)</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Stock Issued Based On Achieving Target Levels</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Stock Issued Based On Achieving Target Levels</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts_3b176966-6701-4b22-98a8-8e8ff4292f12_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of debt discount and issuance costs</link:label>
    <link:label id="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts_label_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of Debt Issuance Costs and Discounts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="lab_us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_8d6c10f7-ab7f-4e85-bd91-bc37953004f6_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net cash provided by (used in) financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_eec83379-1327-4193-8cfb-e87b6becc935_verboseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherDepreciationAndAmortization_2ca0ba05-4e2a-4f93-8e11-3d6cbcab1faf_terseLabel_en-US" xlink:label="lab_us-gaap_OtherDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other depreciation and amortization expense</link:label>
    <link:label id="lab_us-gaap_OtherDepreciationAndAmortization_label_en-US" xlink:label="lab_us-gaap_OtherDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Depreciation and Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherDepreciationAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherDepreciationAndAmortization" xlink:to="lab_us-gaap_OtherDepreciationAndAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CounterpartyNameAxis_52caaca7-87d1-404d-90d1-47873f571a26_terseLabel_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:label id="lab_srt_CounterpartyNameAxis_label_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CounterpartyNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CounterpartyNameAxis" xlink:to="lab_srt_CounterpartyNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockValue_28c8728f-81b2-41c8-973e-d934dfec856d_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, 0.001 par value 400,000,000 shares authorized; 141,317,066 and 129,343,524 shares issued and outstanding at March&#160;31, 2021 and December&#160;31, 2020, respectively</link:label>
    <link:label id="lab_us-gaap_CommonStockValue_label_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Value, Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValue" xlink:to="lab_us-gaap_CommonStockValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermInvestments_ca5feae0-4249-4476-87c6-b1c9adf0dd91_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term investments</link:label>
    <link:label id="lab_us-gaap_LongTermInvestments_label_en-US" xlink:label="lab_us-gaap_LongTermInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermInvestments" xlink:to="lab_us-gaap_LongTermInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_9b9a3f7f-2321-4884-8602-10ab8adfd4f8_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disposal Group Name [Axis]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_label_en-US" xlink:label="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disposal Group Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="lab_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ProceedsFromCappedCall_f15e98c8-f8fe-4bbb-98fd-7f5296c698a6_terseLabel_en-US" xlink:label="lab_chgg_ProceedsFromCappedCall" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from capped call</link:label>
    <link:label id="lab_chgg_ProceedsFromCappedCall_label_en-US" xlink:label="lab_chgg_ProceedsFromCappedCall" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Capped Call</link:label>
    <link:label id="lab_chgg_ProceedsFromCappedCall_documentation_en-US" xlink:label="lab_chgg_ProceedsFromCappedCall" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Capped Call</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromCappedCall" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromCappedCall"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ProceedsFromCappedCall" xlink:to="lab_chgg_ProceedsFromCappedCall" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalYearFocus_e6c72625-ac71-4417-979c-f99176c425a2_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentFiscalYearFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommercialPaperMember_e1e85c5e-6337-42b7-9976-811e0ef7c779_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialPaperMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commercial paper</link:label>
    <link:label id="lab_us-gaap_CommercialPaperMember_label_en-US" xlink:label="lab_us-gaap_CommercialPaperMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commercial Paper [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommercialPaperMember" xlink:to="lab_us-gaap_CommercialPaperMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAxis_adea6451-9195-4a12-b75b-71cfc2bebb42_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Axis]</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAxis_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis" xlink:to="lab_us-gaap_CashAndCashEquivalentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCurrentReportingStatus_b3859bbd-465b-4bd5-b688-43c4f585d5d6_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:label id="lab_dei_EntityCurrentReportingStatus_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCurrentReportingStatus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus" xlink:to="lab_dei_EntityCurrentReportingStatus" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockPricePerShare_a7b72fbe-ae6d-4c7b-ac84-e4289cc3eae3_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockPricePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Offering price per share (in dollars per share</link:label>
    <link:label id="lab_us-gaap_SaleOfStockPricePerShare_label_en-US" xlink:label="lab_us-gaap_SaleOfStockPricePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock, Price Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockPricePerShare" xlink:to="lab_us-gaap_SaleOfStockPricePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionAxis_164d809a-4677-44ba-b1d3-3e0bbe8dd6c0_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction [Axis]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionAxis_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis" xlink:to="lab_us-gaap_RelatedPartyTransactionAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_bbb9894a-07ce-41c6-b66a-f45121ef487e_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sale of strategic equity investment</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Sale of Equity Method Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:to="lab_us-gaap_ProceedsFromSaleOfEquityMethodInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerSharePolicyTextBlock_7432b953-5c93-4139-9429-3a84b8429151_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Loss Per Share</link:label>
    <link:label id="lab_us-gaap_EarningsPerSharePolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="lab_us-gaap_EarningsPerSharePolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentTable_da98b106-eaf3-4079-8b89-b43cc6abfb7a_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentTable_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="lab_us-gaap_DebtInstrumentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_4e922624-4f5d-4aee-8c19-295f0f1ea075_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Grant date fair value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_7f3a08f2-1b33-441d-bf75-7a088d1c0f79_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Grant Date Fair Value, Granted (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentConvertibleSharesTerminated_87ce0ce5-d23d-4721-b071-7b4dfd22dac3_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentConvertibleSharesTerminated" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt instrument, convertible, shares terminated (in shares)</link:label>
    <link:label id="lab_chgg_DebtInstrumentConvertibleSharesTerminated_label_en-US" xlink:label="lab_chgg_DebtInstrumentConvertibleSharesTerminated" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Shares Terminated</link:label>
    <link:label id="lab_chgg_DebtInstrumentConvertibleSharesTerminated_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentConvertibleSharesTerminated" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Shares Terminated</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConvertibleSharesTerminated" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConvertibleSharesTerminated"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentConvertibleSharesTerminated" xlink:to="lab_chgg_DebtInstrumentConvertibleSharesTerminated" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_6763ba99-8005-477c-b57a-97c1403d363a_terseLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting percentage</link:label>
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_label_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:to="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_c1121ca5-257d-435c-b78f-a8e1d7450f87_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash flows from investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesIssued_5a5b3ad7-6a2d-45f7-b702-9c055c20109e_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, shares issued (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesIssued_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Shares, Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued" xlink:to="lab_us-gaap_CommonStockSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_6b92f015-9631-4852-9451-37d363db094d_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtPolicyTextBlock_84ee592d-6a81-4f62-a528-870994efffda_terseLabel_en-US" xlink:label="lab_us-gaap_DebtPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Convertible Senior Notes, net</link:label>
    <link:label id="lab_us-gaap_DebtPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_DebtPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtPolicyTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtPolicyTextBlock" xlink:to="lab_us-gaap_DebtPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_SaleOfStockOfferingExpenses_69583326-3eb9-4edb-8ba0-f34f3014e25d_terseLabel_en-US" xlink:label="lab_chgg_SaleOfStockOfferingExpenses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Offering expenses</link:label>
    <link:label id="lab_chgg_SaleOfStockOfferingExpenses_label_en-US" xlink:label="lab_chgg_SaleOfStockOfferingExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Of Stock, Offering Expenses</link:label>
    <link:label id="lab_chgg_SaleOfStockOfferingExpenses_documentation_en-US" xlink:label="lab_chgg_SaleOfStockOfferingExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Of Stock, Offering Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SaleOfStockOfferingExpenses" xlink:href="chgg-20210331.xsd#chgg_SaleOfStockOfferingExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_SaleOfStockOfferingExpenses" xlink:to="lab_chgg_SaleOfStockOfferingExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LitigationStatusAxis_1c066bef-7f2e-41f0-85ec-57d18f42a0ce_terseLabel_en-US" xlink:label="lab_us-gaap_LitigationStatusAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Status [Axis]</link:label>
    <link:label id="lab_us-gaap_LitigationStatusAxis_label_en-US" xlink:label="lab_us-gaap_LitigationStatusAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Status [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LitigationStatusAxis" xlink:to="lab_us-gaap_LitigationStatusAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_f7c5f9f9-f238-49c9-99d7-a8d24fdd7d36_terseLabel_en-US" xlink:label="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Price Per $1,000 Principal Amount Less Than 98%</link:label>
    <link:label id="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_label_en-US" xlink:label="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Price Per 1000 Dollar Principal Amount Less Than 98 Percent [Member]</link:label>
    <link:label id="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_documentation_en-US" xlink:label="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Price Per 1000 Dollar Principal Amount Less Than 98 Percent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" xlink:href="chgg-20210331.xsd#chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" xlink:to="lab_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_b1bb39a4-94f6-4504-a25f-a1a7fbffb1b7_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_a0dbe451-884d-4b14-b31f-14cbdcb653a2_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems" xlink:to="lab_us-gaap_DebtInstrumentLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_173db6d6-fe4c-4fe9-a55f-5003635213f8_terseLabel_en-US" xlink:label="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock upon exercise of stock options and ESPP (in shares)</link:label>
    <link:label id="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_label_en-US" xlink:label="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Shares, Employee Stock Purchase Plan and Stock Options Exercised</link:label>
    <link:label id="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_documentation_en-US" xlink:label="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Shares, Employee Stock Purchase Plan and Stock Options Exercised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" xlink:href="chgg-20210331.xsd#chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" xlink:to="lab_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ExchangeOfAggregatePrincipalAmountMember_ff664738-9d8e-4df9-83d4-c2b37440da29_terseLabel_en-US" xlink:label="lab_chgg_ExchangeOfAggregatePrincipalAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exchange Of Aggregate Principal Amount</link:label>
    <link:label id="lab_chgg_ExchangeOfAggregatePrincipalAmountMember_label_en-US" xlink:label="lab_chgg_ExchangeOfAggregatePrincipalAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exchange Of Aggregate Principal Amount [Member]</link:label>
    <link:label id="lab_chgg_ExchangeOfAggregatePrincipalAmountMember_documentation_en-US" xlink:label="lab_chgg_ExchangeOfAggregatePrincipalAmountMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exchange Of Aggregate Principal Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ExchangeOfAggregatePrincipalAmountMember" xlink:href="chgg-20210331.xsd#chgg_ExchangeOfAggregatePrincipalAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ExchangeOfAggregatePrincipalAmountMember" xlink:to="lab_chgg_ExchangeOfAggregatePrincipalAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentTransactionDomain_22247563-fe07-43b4-99d9-f55add5a0152_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument Transaction [Domain]</link:label>
    <link:label id="lab_chgg_DebtInstrumentTransactionDomain_label_en-US" xlink:label="lab_chgg_DebtInstrumentTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument Transaction [Domain]</link:label>
    <link:label id="lab_chgg_DebtInstrumentTransactionDomain_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Domain] for Debt Instrument Transaction [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentTransactionDomain" xlink:to="lab_chgg_DebtInstrumentTransactionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2723344a-edb4-439e-ab6e-03b928de2202_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:label id="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquity_88e290ec-24b6-45f2-aee6-d8dca8278c61_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total stockholders' equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_c054f93e-2ba4-47d5-a6d6-c9e29114c577_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_b5a59070-21ce-4cad-baf9-3fd0b38e3f5d_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_e23c39f8-2d53-4247-8482-cc25b4c1ad2f_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stockholders' Equity Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity" xlink:to="lab_us-gaap_StockholdersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_b1530ff4-2f04-4e46-ac8f-46d12d72f6f5_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total liabilities and stockholders' equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingenciesLineItems_4565a44d-772f-450a-9b6f-2d4d387c486a_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingencies [Line Items]</link:label>
    <link:label id="lab_us-gaap_LossContingenciesLineItems_label_en-US" xlink:label="lab_us-gaap_LossContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingencies [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingenciesLineItems" xlink:to="lab_us-gaap_LossContingenciesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_e39bd53f-a47b-424c-8253-66d30eb07f00_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated other comprehensive (loss) income</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AgencySecuritiesMember_bc9acd8a-40cd-463f-a46f-ef25a1236036_terseLabel_en-US" xlink:label="lab_us-gaap_AgencySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Agency bonds</link:label>
    <link:label id="lab_us-gaap_AgencySecuritiesMember_label_en-US" xlink:label="lab_us-gaap_AgencySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Agency Securities [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AgencySecuritiesMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AgencySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AgencySecuritiesMember" xlink:to="lab_us-gaap_AgencySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrent_f3948a55-e8b6-4e64-93d3-594d5bdc1e85_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total long-term liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrent" xlink:to="lab_us-gaap_LiabilitiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_a23d12b6-2110-4e0b-832c-fd0b7f01571a_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionConsideration_cdbb5a33-bb5e-4080-b96d-a514378c12a4_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionConsideration" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt conversion, consideration</link:label>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionConsideration_label_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionConsideration" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Debt Conversion, Consideration</link:label>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionConsideration_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionConsideration" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Debt Conversion, Consideration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionConsideration" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionConsideration"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentDebtConversionConsideration" xlink:to="lab_chgg_DebtInstrumentDebtConversionConsideration" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_b9a02a4b-8fbe-4230-9134-12578afab1be_terseLabel_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portion at Fair Value Measurement</link:label>
    <link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_label_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portion at Fair Value Measurement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:to="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_42868bcb-f72f-45d3-a04c-1fbd14d6bc38_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedStockUnitsRSUMember_5404311f-3892-4d13-8097-8c9f2be8cba5_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockUnitsRSUMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock Units (RSUs)</link:label>
    <link:label id="lab_us-gaap_RestrictedStockUnitsRSUMember_label_en-US" xlink:label="lab_us-gaap_RestrictedStockUnitsRSUMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock Units (RSUs) [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:to="lab_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseCost_78d2cc72-508c-4314-b153-b49994afdf87_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease expense, net of accretion</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseCost_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseCost" xlink:to="lab_us-gaap_OperatingLeaseCost" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_6216b141-1a32-405d-83fc-65a210891918_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities assumed</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_TextbookLibraryGainLossNet_efe7c8d1-0ac0-40ef-9331-4ec68bb825db_negatedTerseLabel_en-US" xlink:label="lab_chgg_TextbookLibraryGainLossNet" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss (gain) on textbook library, net</link:label>
    <link:label id="lab_chgg_TextbookLibraryGainLossNet_label_en-US" xlink:label="lab_chgg_TextbookLibraryGainLossNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Textbook Library, Gain (Loss), Net</link:label>
    <link:label id="lab_chgg_TextbookLibraryGainLossNet_documentation_en-US" xlink:label="lab_chgg_TextbookLibraryGainLossNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain and write-down on textbook library</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryGainLossNet" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryGainLossNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_TextbookLibraryGainLossNet" xlink:to="lab_chgg_TextbookLibraryGainLossNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_aadb4971-4649-453e-98cf-b553d862a0be_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">General and administrative</link:label>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_label_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">General and Administrative Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:to="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TypeOfAdoptionMember_931a74b2-8d8b-43b8-945b-05f0f483ece3_terseLabel_en-US" xlink:label="lab_us-gaap_TypeOfAdoptionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type of Adoption [Domain]</link:label>
    <link:label id="lab_us-gaap_TypeOfAdoptionMember_label_en-US" xlink:label="lab_us-gaap_TypeOfAdoptionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Standards Update [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TypeOfAdoptionMember" xlink:to="lab_us-gaap_TypeOfAdoptionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PublicOfferingMember_f3858311-3675-4202-b86a-92c607478838_terseLabel_en-US" xlink:label="lab_chgg_PublicOfferingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Offering</link:label>
    <link:label id="lab_chgg_PublicOfferingMember_label_en-US" xlink:label="lab_chgg_PublicOfferingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Offering [Member]</link:label>
    <link:label id="lab_chgg_PublicOfferingMember_documentation_en-US" xlink:label="lab_chgg_PublicOfferingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Offering</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PublicOfferingMember" xlink:href="chgg-20210331.xsd#chgg_PublicOfferingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PublicOfferingMember" xlink:to="lab_chgg_PublicOfferingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9f8b9020-b89d-4602-acfa-8eb4e5d0120f_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total common stock equivalents (in shares)</link:label>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_e7682d81-62b8-469f-ad88-b6ac03ca03fd_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other non-cash items</link:label>
    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_label_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Noncash Income (Expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoncashIncomeExpense" xlink:to="lab_us-gaap_OtherNoncashIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_0fd259e3-5add-4b8b-a958-fca935885556_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss from write-off of property and equipment</link:label>
    <link:label id="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain (Loss) on Disposition of Property Plant Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:to="lab_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityComponentDomain_e8cc03c8-d053-469e-8ff0-9397114ecf8e_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:label id="lab_us-gaap_EquityComponentDomain_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="lab_us-gaap_EquityComponentDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_cfbeb028-b23c-4515-a901-07d713c1ec24_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in net unrealized loss on available for sale investments, net of tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GrossProfit_4a7c77ee-daa7-4009-89ce-ccf959591369_totalLabel_en-US" xlink:label="lab_us-gaap_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gross profit</link:label>
    <link:label id="lab_us-gaap_GrossProfit_label_en-US" xlink:label="lab_us-gaap_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gross Profit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GrossProfit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GrossProfit" xlink:to="lab_us-gaap_GrossProfit" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_96cbf27f-c85e-4081-942b-f99ca9d486b1_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property and equipment, net</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_0f0d08ba-c218-45ab-ad1d-d90624540da2_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNonoperatingNet_0e576396-d7de-4794-8af5-f94d57ef8526_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNonoperatingNet_label_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Income (Expense), Nonoperating, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:to="lab_us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_7361a880-fa73-4820-abad-ab8006e8ab07_terseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stockholders' Equity</link:label>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_RequiredMaterialsMember_9e74da9a-1815-4539-b96a-bf23d5592d7c_terseLabel_en-US" xlink:label="lab_chgg_RequiredMaterialsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Materials</link:label>
    <link:label id="lab_chgg_RequiredMaterialsMember_label_en-US" xlink:label="lab_chgg_RequiredMaterialsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Materials [Member]</link:label>
    <link:label id="lab_chgg_RequiredMaterialsMember_documentation_en-US" xlink:label="lab_chgg_RequiredMaterialsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Materials [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RequiredMaterialsMember" xlink:href="chgg-20210331.xsd#chgg_RequiredMaterialsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_RequiredMaterialsMember" xlink:to="lab_chgg_RequiredMaterialsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetIncomeLoss_ef4781f7-0850-45ee-8fcf-6b8c21fd4195_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net loss</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_8125e6b8-b735-41e1-b547-7f55a46e37e1_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net loss</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="lab_us-gaap_NetIncomeLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_910e919d-b451-4c49-82cd-3a74d80d3698_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in assets and liabilities, net of effect of acquisition of business:</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_121656dd-7586-4571-8156-5ed2961bf3f3_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt conversion, shares issued, value</link:label>
    <link:label id="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_label_en-US" xlink:label="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Consideration Transferred, Equity Interests Issued And Issuable</link:label>
    <link:label id="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Consideration Transferred, Equity Interests Issued And Issuable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:to="lab_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_5ae14ee2-47cc-4c1f-92be-607c0c978015_terseLabel_en-US" xlink:label="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of board members appointed to Board of Directors of related party</link:label>
    <link:label id="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_label_en-US" xlink:label="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions, Number of Board Members Appointed to Chief Executive Officer of Related Party</link:label>
    <link:label id="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_documentation_en-US" xlink:label="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions, Number of Board Members Appointed to Chief Executive Officer of Related Party</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" xlink:href="chgg-20210331.xsd#chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" xlink:to="lab_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_bcc29b31-059c-4935-81c0-a4e744b09372_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Option to purchase additional notes</link:label>
    <link:label id="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_label_en-US" xlink:label="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Face Amount, Option To Purchase Additional Notes</link:label>
    <link:label id="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Face Amount, Option To Purchase Additional Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" xlink:to="lab_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_18002114-ad3b-43f0-a4a8-3869fa090201_terseLabel_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_label_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EquityMethodInvesteeNameDomain" xlink:to="lab_srt_EquityMethodInvesteeNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_07db2ff5-8e93-4bd9-b331-a0522a68908f_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other comprehensive loss</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ForeignEntityMember_b0587887-6847-4295-ad44-e7dc94bee0b4_terseLabel_en-US" xlink:label="lab_chgg_ForeignEntityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign Entity</link:label>
    <link:label id="lab_chgg_ForeignEntityMember_label_en-US" xlink:label="lab_chgg_ForeignEntityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign Entity [Member]</link:label>
    <link:label id="lab_chgg_ForeignEntityMember_documentation_en-US" xlink:label="lab_chgg_ForeignEntityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign Entity [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ForeignEntityMember" xlink:href="chgg-20210331.xsd#chgg_ForeignEntityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ForeignEntityMember" xlink:to="lab_chgg_ForeignEntityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_92612ba4-c587-43a4-936a-93932b0be7ad_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeAxis" xlink:to="lab_us-gaap_LongtermDebtTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsCurrent_1bd92c88-bf67-467c-8f44-2885818ec21c_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrent_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="lab_us-gaap_AssetsCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_5089c0db-7ca7-4434-975a-f7f8af05513f_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingExpensesAbstract_aef535f8-7bae-40ef-b5cb-32a23d94634a_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating expenses:</link:label>
    <link:label id="lab_us-gaap_OperatingExpensesAbstract_label_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Expenses [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="lab_us-gaap_OperatingExpensesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtConversionOriginalDebtAmount1_ec155569-737e-4d38-ab17-ee17aa6185b5_terseLabel_en-US" xlink:label="lab_us-gaap_DebtConversionOriginalDebtAmount1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt conversion, converted amount</link:label>
    <link:label id="lab_us-gaap_DebtConversionOriginalDebtAmount1_label_en-US" xlink:label="lab_us-gaap_DebtConversionOriginalDebtAmount1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Conversion, Original Debt, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionOriginalDebtAmount1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtConversionOriginalDebtAmount1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtConversionOriginalDebtAmount1" xlink:to="lab_us-gaap_DebtConversionOriginalDebtAmount1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareAbstract_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareAbstract" xlink:to="lab_us-gaap_EarningsPerShareAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_cab4278b-530d-4f0e-b974-79efa38f9a55_terseLabel_en-US" xlink:label="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0% Convertible Senior Notes Due 2026, Additional Notes</link:label>
    <link:label id="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_label_en-US" xlink:label="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0% Convertible Senior Notes Due 2026, Additional Notes [Member]</link:label>
    <link:label id="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_documentation_en-US" xlink:label="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">0% Convertible Senior Notes Due 2026, Additional Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" xlink:to="lab_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_648ae6be-cce3-4326-9c99-e6759a7acc5c_terseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</link:label>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:to="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PerformanceSharesMarketBasedConditionsMember_11d30c46-bb27-454b-816e-476fa47417a1_terseLabel_en-US" xlink:label="lab_chgg_PerformanceSharesMarketBasedConditionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PSUs with Market Based Conditions</link:label>
    <link:label id="lab_chgg_PerformanceSharesMarketBasedConditionsMember_label_en-US" xlink:label="lab_chgg_PerformanceSharesMarketBasedConditionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Shares, Market Based Conditions [Member]</link:label>
    <link:label id="lab_chgg_PerformanceSharesMarketBasedConditionsMember_documentation_en-US" xlink:label="lab_chgg_PerformanceSharesMarketBasedConditionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Shares, Market Based Conditions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesMarketBasedConditionsMember" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesMarketBasedConditionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PerformanceSharesMarketBasedConditionsMember" xlink:to="lab_chgg_PerformanceSharesMarketBasedConditionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_defc5cfb-3d34-432e-a634-158359036fc5_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disposal Group Name [Domain]</link:label>
    <link:label id="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_label_en-US" xlink:label="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disposal Group Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_6a60cb49-6262-44a4-b269-c56a6173f974_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stockholders' equity:</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stockholders' Equity Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract" xlink:to="lab_us-gaap_StockholdersEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAbstract_46f7a207-0d53-413e-9d7e-f40c553290af_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Abstract]</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAbstract_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract" xlink:to="lab_us-gaap_CashAndCashEquivalentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_a118507d-dfab-410f-9400-c27731c41121_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentTransactionAxis_8a956bbe-1377-47da-9da5-ac0ba81f8873_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentTransactionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument Transaction [Axis]</link:label>
    <link:label id="lab_chgg_DebtInstrumentTransactionAxis_label_en-US" xlink:label="lab_chgg_DebtInstrumentTransactionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument Transaction [Axis]</link:label>
    <link:label id="lab_chgg_DebtInstrumentTransactionAxis_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentTransactionAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument Transaction [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionAxis" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentTransactionAxis" xlink:to="lab_chgg_DebtInstrumentTransactionAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_d5feaaed-a7e3-462d-bc10-6054a2350c01_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Supplemental cash flow data:</link:label>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_TextbookLibraryNet_e4e19ce3-22e3-477b-8652-739df642e646_terseLabel_en-US" xlink:label="lab_chgg_TextbookLibraryNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Textbook library, net</link:label>
    <link:label id="lab_chgg_TextbookLibraryNet_label_en-US" xlink:label="lab_chgg_TextbookLibraryNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Textbook Library Net</link:label>
    <link:label id="lab_chgg_TextbookLibraryNet_documentation_en-US" xlink:label="lab_chgg_TextbookLibraryNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Carrying amount as of the balance sheet date of amounts paid for textbooks which met the criteria for capitalization, net of related accumulated depreciation, which is expected to be used beyond one year.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryNet" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_TextbookLibraryNet" xlink:to="lab_chgg_TextbookLibraryNet" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_5150662e-2fe3-489b-8d58-19f62c812750_terseLabel_en-US" xlink:label="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due in 1-2 years, Cost</link:label>
    <link:label id="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_label_en-US" xlink:label="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Year One Through Two, Amortized Cost Basis</link:label>
    <link:label id="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_documentation_en-US" xlink:label="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Year One Through Two, Amortized Cost Basis</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" xlink:href="chgg-20210331.xsd#chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" xlink:to="lab_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_99d11098-5057-4c0f-8fbe-6cca89029c14_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_f8930cad-9ac1-4b8f-8da3-01c32938c14a_terseLabel_en-US" xlink:label="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in contract assets, percent</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_label_en-US" xlink:label="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase Decrease In Contract With Customer Assets Percent</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_documentation_en-US" xlink:label="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase Decrease In Contract With Customer Assets Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" xlink:to="lab_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_d28a852e-57cf-489f-a62e-c229a0281954_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimate of possible loss</link:label>
    <link:label id="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_label_en-US" xlink:label="lab_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, Estimate of Possible Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:to="lab_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherLongTermInvestmentsMember_ee2c93c4-4114-4a11-aa89-8a07a8e82eb9_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLongTermInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term investments:</link:label>
    <link:label id="lab_us-gaap_OtherLongTermInvestmentsMember_label_en-US" xlink:label="lab_us-gaap_OtherLongTermInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Long-term Investments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestmentsMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLongTermInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLongTermInvestmentsMember" xlink:to="lab_us-gaap_OtherLongTermInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFilerCategory_c5882ff3-a2dc-4d65-963a-8e903695ab0c_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Filer Category</link:label>
    <link:label id="lab_dei_EntityFilerCategory_label_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFilerCategory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_655a5da6-1522-47ca-9993-1ffeb51ab425_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock-Based Compensation Expense for Employees and Non-Employees</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:to="lab_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets_729dc053-193a-4269-9a3e-0111e5264b97_terseLabel_en-US" xlink:label="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in contract assets</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets_label_en-US" xlink:label="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) In Contract With Customer, Assets</link:label>
    <link:label id="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets_documentation_en-US" xlink:label="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) In Contract With Customer, Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInContractWithCustomerAssets" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInContractWithCustomerAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_IncreaseDecreaseInContractWithCustomerAssets" xlink:to="lab_chgg_IncreaseDecreaseInContractWithCustomerAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockMember_1bf86308-ffd9-4b9e-9f42-df848fae3199_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock</link:label>
    <link:label id="lab_us-gaap_CommonStockMember_label_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember" xlink:to="lab_us-gaap_CommonStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductsAndServicesDomain_5cf45ab3-7f51-4510-8ed8-1e26b166181d_terseLabel_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:label id="lab_srt_ProductsAndServicesDomain_label_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductsAndServicesDomain" xlink:to="lab_srt_ProductsAndServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SeniorNotesCurrent_6e2f6a9d-a830-478c-a75f-94328041f30b_terseLabel_en-US" xlink:label="lab_us-gaap_SeniorNotesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current portion of convertible senior notes, net</link:label>
    <link:label id="lab_us-gaap_SeniorNotesCurrent_label_en-US" xlink:label="lab_us-gaap_SeniorNotesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Notes, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeniorNotesCurrent" xlink:to="lab_us-gaap_SeniorNotesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_715fd2a7-1663-4aec-b57f-d4704de6037e_terseLabel_en-US" xlink:label="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from common stock issued under stock plans, net</link:label>
    <link:label id="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_label_en-US" xlink:label="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Issuance Of Employee Stock Purchase Plan</link:label>
    <link:label id="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_documentation_en-US" xlink:label="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Issuance Of Employee Stock Purchase Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" xlink:to="lab_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_58b0339b-eb09-4537-a9f9-306108f9faa8_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance period</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Performance Period</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Performance Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ZuoraIncMember_01edfa06-d3d3-47a8-accc-2ad966b7bc72_terseLabel_en-US" xlink:label="lab_chgg_ZuoraIncMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Zuora, Inc.</link:label>
    <link:label id="lab_chgg_ZuoraIncMember_label_en-US" xlink:label="lab_chgg_ZuoraIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Zuora, Inc. [Member]</link:label>
    <link:label id="lab_chgg_ZuoraIncMember_documentation_en-US" xlink:label="lab_chgg_ZuoraIncMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Zuora, Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ZuoraIncMember" xlink:href="chgg-20210331.xsd#chgg_ZuoraIncMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ZuoraIncMember" xlink:to="lab_chgg_ZuoraIncMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_7074f6e3-5684-40a1-8958-c6f3055cf473_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock in connection with equity offering, net of offering costs (in shares)</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RestatementDomain_e06dd325-dafd-4bdc-86cc-773be14dcf0a_terseLabel_en-US" xlink:label="lab_srt_RestatementDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revision of Prior Period [Domain]</link:label>
    <link:label id="lab_srt_RestatementDomain_label_en-US" xlink:label="lab_srt_RestatementDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revision of Prior Period [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RestatementDomain" xlink:to="lab_srt_RestatementDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_f0a2add6-e00f-4307-a8cf-2a88f9871613_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest rate, stated percentage</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_49f31c66-6b72-4836-b3bf-a870635fd34f_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of common stock upon conversion of 2023 convertible senior notes (in shares)</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Shares, Conversion of Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentConvertibleShares_1fecbec0-20d2-4b96-939a-9f8b612adf52_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentConvertibleShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt instrument, convertible (in shares)</link:label>
    <link:label id="lab_chgg_DebtInstrumentConvertibleShares_label_en-US" xlink:label="lab_chgg_DebtInstrumentConvertibleShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Shares</link:label>
    <link:label id="lab_chgg_DebtInstrumentConvertibleShares_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentConvertibleShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConvertibleShares" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConvertibleShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentConvertibleShares" xlink:to="lab_chgg_DebtInstrumentConvertibleShares" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MoneyMarketFundsMember_9971ff78-71a6-409b-b3f7-8ee13c7d4b2d_terseLabel_en-US" xlink:label="lab_us-gaap_MoneyMarketFundsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Money market funds</link:label>
    <link:label id="lab_us-gaap_MoneyMarketFundsMember_label_en-US" xlink:label="lab_us-gaap_MoneyMarketFundsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Money Market Funds [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MoneyMarketFundsMember" xlink:to="lab_us-gaap_MoneyMarketFundsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_89d2d578-ab47-4c81-815d-b06cf3912fe8_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract assets</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Asset, after Allowance for Credit Loss, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetNetCurrent" xlink:to="lab_us-gaap_ContractWithCustomerAssetNetCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_651379c7-b84d-49ff-9472-d1a1f7fed3df_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions [Abstract]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_312a7bfc-9002-479a-adcb-536aeec0aae3_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net increase (decrease) in cash, cash equivalents and restricted cash</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationDisclosureTextBlock_8ff4acf9-542d-4ad4-be58-5c22aafc33cf_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Acquisitions</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:to="lab_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NonoperatingIncomeExpense_28a4facd-582d-4862-a064-3b4941c6ba14_totalLabel_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total interest expense, net and other (expense) income, net</link:label>
    <link:label id="lab_us-gaap_NonoperatingIncomeExpense_label_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nonoperating Income (Expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonoperatingIncomeExpense" xlink:to="lab_us-gaap_NonoperatingIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RepaymentsOfConvertibleDebt_8dd85292-af5a-495c-81ea-70fda3cdf5ab_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfConvertibleDebt" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Repayment of convertible senior notes</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfConvertibleDebt_7a7f720f-3eee-483a-b9d5-a7fce6038037_terseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Repayments of convertible senior notes</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfConvertibleDebt_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Repayments of Convertible Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfConvertibleDebt" xlink:to="lab_us-gaap_RepaymentsOfConvertibleDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_59483c30-6030-4784-8309-6eb6cf8ee992_terseLabel_en-US" xlink:label="lab_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Error Corrections and Prior Period Adjustments Restatement [Line Items]</link:label>
    <link:label id="lab_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_label_en-US" xlink:label="lab_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Error Corrections and Prior Period Adjustments Restatement [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems" xlink:to="lab_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SeniorLongTermNotes_96b59e1d-cefd-4675-8bc2-b7271091a673_terseLabel_en-US" xlink:label="lab_us-gaap_SeniorLongTermNotes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term portion of convertible senior notes, net</link:label>
    <link:label id="lab_us-gaap_SeniorLongTermNotes_label_en-US" xlink:label="lab_us-gaap_SeniorLongTermNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Notes, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorLongTermNotes" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorLongTermNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeniorLongTermNotes" xlink:to="lab_us-gaap_SeniorLongTermNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_34af3eda-9a3a-42d1-ac05-41e8a59be9e7_terseLabel_en-US" xlink:label="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Basis of Presentation</link:label>
    <link:label id="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:to="lab_us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_76960f4d-930f-40b9-a5d8-9b337f286dd8_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Risk-free interest rate</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_ce280050-2512-47ac-8687-bc31cd211d2d_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in foreign currency translation adjustments, net of tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsMember_1ff556a6-a916-4909-b49b-d8325d8953cd_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and cash equivalents:</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsMember_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsMember" xlink:to="lab_us-gaap_CashAndCashEquivalentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockNameOfTransactionDomain_bdc527d6-5459-40f7-a69f-f566eb162146_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:label id="lab_us-gaap_SaleOfStockNameOfTransactionDomain_label_en-US" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingenciesTable_1e62ce92-ec4e-48b1-a142-8dce70f9423b_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingenciesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingencies [Table]</link:label>
    <link:label id="lab_us-gaap_LossContingenciesTable_label_en-US" xlink:label="lab_us-gaap_LossContingenciesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingencies [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingenciesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingenciesTable" xlink:to="lab_us-gaap_LossContingenciesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_57bfd704-9755-465b-93cc-13a756008aca_terseLabel_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Carrying Amount</link:label>
    <link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_label_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reported Value Measurement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:to="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_a349251f-5730-4da8-aca7-77f308cbab4f_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenues</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestPaidNet_0781af7a-1678-4406-ba54-feb3b7b6d97c_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest</link:label>
    <link:label id="lab_us-gaap_InterestPaidNet_label_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Paid, Excluding Capitalized Interest, Operating Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestPaidNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaidNet" xlink:to="lab_us-gaap_InterestPaidNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockOptionMember_39eadd36-ecad-4ec9-990f-ef51ab9b1f13_terseLabel_en-US" xlink:label="lab_us-gaap_StockOptionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Options to purchase common stock</link:label>
    <link:label id="lab_us-gaap_StockOptionMember_label_en-US" xlink:label="lab_us-gaap_StockOptionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Option [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockOptionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockOptionMember" xlink:to="lab_us-gaap_StockOptionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_42681ad8-6311-4b14-ab0d-84394b4fc689_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost method investment</link:label>
    <link:label id="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Securities without Readily Determinable Fair Value, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:to="lab_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ProceedsFromDispositionOfTextbooks_f1145dd8-39b1-495d-9c70-972e2313bdb5_terseLabel_en-US" xlink:label="lab_chgg_ProceedsFromDispositionOfTextbooks" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from disposition of textbooks</link:label>
    <link:label id="lab_chgg_ProceedsFromDispositionOfTextbooks_label_en-US" xlink:label="lab_chgg_ProceedsFromDispositionOfTextbooks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Disposition Of Textbooks</link:label>
    <link:label id="lab_chgg_ProceedsFromDispositionOfTextbooks_documentation_en-US" xlink:label="lab_chgg_ProceedsFromDispositionOfTextbooks" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Disposition Of Textbooks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromDispositionOfTextbooks" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromDispositionOfTextbooks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ProceedsFromDispositionOfTextbooks" xlink:to="lab_chgg_ProceedsFromDispositionOfTextbooks" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember_4feefaf0-1b86-4978-a38d-0cb2ca302310_terseLabel_en-US" xlink:label="lab_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revision of Prior Period, Reclassification, Adjustment</link:label>
    <link:label id="lab_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember_label_en-US" xlink:label="lab_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revision of Prior Period, Reclassification, Adjustment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RevisionOfPriorPeriodReclassificationAdjustmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember" xlink:to="lab_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_PaymentsForInitialPurchasersDiscount_a8160c11-e53a-40ad-9220-008407cad2fd_negatedTerseLabel_en-US" xlink:label="lab_chgg_PaymentsForInitialPurchasersDiscount" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less initial purchasers&#8217; discount</link:label>
    <link:label id="lab_chgg_PaymentsForInitialPurchasersDiscount_label_en-US" xlink:label="lab_chgg_PaymentsForInitialPurchasersDiscount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments For Initial Purchasers Discount</link:label>
    <link:label id="lab_chgg_PaymentsForInitialPurchasersDiscount_documentation_en-US" xlink:label="lab_chgg_PaymentsForInitialPurchasersDiscount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments For Initial Purchasers Discount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentsForInitialPurchasersDiscount" xlink:href="chgg-20210331.xsd#chgg_PaymentsForInitialPurchasersDiscount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_PaymentsForInitialPurchasersDiscount" xlink:to="lab_chgg_PaymentsForInitialPurchasersDiscount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtFairValue_aec4d78b-0292-401a-b82b-53b67db54c37_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Convertible senior notes</link:label>
    <link:label id="lab_us-gaap_LongTermDebtFairValue_cfd39d61-2202-4729-a838-70e6a1d8e125_totalLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net carrying amount</link:label>
    <link:label id="lab_us-gaap_LongTermDebtFairValue_label_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtFairValue" xlink:to="lab_us-gaap_LongTermDebtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_GuaranteesAndIndemnificationsTextBlock_ccba2bb5-6572-4417-ab50-95f4b0d1b5ec_terseLabel_en-US" xlink:label="lab_chgg_GuaranteesAndIndemnificationsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Guarantees and Indemnifications</link:label>
    <link:label id="lab_chgg_GuaranteesAndIndemnificationsTextBlock_label_en-US" xlink:label="lab_chgg_GuaranteesAndIndemnificationsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Guarantees And Indemnifications [Text Block]</link:label>
    <link:label id="lab_chgg_GuaranteesAndIndemnificationsTextBlock_documentation_en-US" xlink:label="lab_chgg_GuaranteesAndIndemnificationsTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Guarantees and indemnifications.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_GuaranteesAndIndemnificationsTextBlock" xlink:href="chgg-20210331.xsd#chgg_GuaranteesAndIndemnificationsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_GuaranteesAndIndemnificationsTextBlock" xlink:to="lab_chgg_GuaranteesAndIndemnificationsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_78103b29-a72c-4d20-bf5c-ce208f4cd18d_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Provision for income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtCovenantTermsDomain_4b833caa-e01a-4579-98f6-284efa0ec1b9_terseLabel_en-US" xlink:label="lab_chgg_DebtCovenantTermsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Covenant Terms [Domain]</link:label>
    <link:label id="lab_chgg_DebtCovenantTermsDomain_label_en-US" xlink:label="lab_chgg_DebtCovenantTermsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Covenant Terms [Domain]</link:label>
    <link:label id="lab_chgg_DebtCovenantTermsDomain_documentation_en-US" xlink:label="lab_chgg_DebtCovenantTermsDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Domain] for Debt Covenant Terms [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsDomain" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtCovenantTermsDomain" xlink:to="lab_chgg_DebtCovenantTermsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxesPaidNet_1e159e94-9ac7-4111-ae81-8cb5d9528a1a_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaidNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income taxes, net of refunds</link:label>
    <link:label id="lab_us-gaap_IncomeTaxesPaidNet_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaidNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Taxes Paid, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxesPaidNet" xlink:to="lab_us-gaap_IncomeTaxesPaidNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2d03068c-5750-474b-8c4a-30e9031f44e4_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, cash equivalents and restricted cash, beginning of period</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_89285992-6e5a-4cdb-b154-34443d318cae_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, cash equivalents and restricted cash, end of period</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_592e9f80-d917-4eb7-afca-d73aed32ca71_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total cash, cash equivalents and restricted cash</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtSecuritiesAvailableForSaleTable_1175371b-d44a-485f-b2ca-9f9a2aed9a28_terseLabel_en-US" xlink:label="lab_us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale [Table]</link:label>
    <link:label id="lab_us-gaap_DebtSecuritiesAvailableForSaleTable_label_en-US" xlink:label="lab_us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-sale [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:to="lab_us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquireMarketableSecurities_bff2fc2e-e384-4ab1-b0c7-a0c26caec9f2_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchases of investments</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireMarketableSecurities_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Marketable Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:to="lab_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_9353a348-7842-4ce2-8ad3-96ff312a7c81_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain on sale of strategic equity investment</link:label>
    <link:label id="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_931c72fe-8a4f-41cb-bdb7-702b389719c0_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain on sale of strategic equity investment</link:label>
    <link:label id="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_8a8dc6ab-0cdf-440d-8884-62867c2520e5_negatedLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain on sale of strategic equity investment</link:label>
    <link:label id="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Method Investment, Realized Gain (Loss) on Disposal</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:to="lab_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_5b25c75d-e70b-4301-909d-f1b127e72e12_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued liabilities</link:label>
    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_2834fd66-56c1-4721-88b6-d09cfcbcc6fe_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_7c1c6cd7-1d25-4775-8cb5-283dba73fd00_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Initial cash consideration</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Businesses, Gross</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesGross" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesGross" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CumulativeEffectPeriodOfAdoptionDomain_19dc8d5b-5ef7-4dc7-ae87-ab42502aabfb_terseLabel_en-US" xlink:label="lab_srt_CumulativeEffectPeriodOfAdoptionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect, Period of Adoption [Domain]</link:label>
    <link:label id="lab_srt_CumulativeEffectPeriodOfAdoptionDomain_label_en-US" xlink:label="lab_srt_CumulativeEffectPeriodOfAdoptionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect, Period of Adoption [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain" xlink:to="lab_srt_CumulativeEffectPeriodOfAdoptionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheOneMember_dee740c0-7487-48ab-a1c9-23b9540404d1_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Threshold Level</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationAwardTrancheOneMember_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement, Tranche One [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:to="lab_us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_69c485ef-7859-4d3a-aa8a-5072f8d686d3_terseLabel_en-US" xlink:label="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">VitalSource Technologies LLC (VST) vs. Chegg</link:label>
    <link:label id="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_label_en-US" xlink:label="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">VitalSource Technologies LLC (VST) vs. Chegg [Member]</link:label>
    <link:label id="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_documentation_en-US" xlink:label="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">VitalSource Technologies LLC (VST) vs. Chegg</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" xlink:href="chgg-20210331.xsd#chgg_VitalSourceTechnologiesLLCVSTVsCheggMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" xlink:to="lab_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfDebtTableTextBlock_04ec94f4-e955-4764-941c-a9d60d0391ff_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Debt</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDebtTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Debt [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDebtTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfDebtTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_ce943b30-ac42-4403-8341-2ca3f4902296_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Long-term Debt Instruments</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:to="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_e9516254-d5ac-4431-8831-223a5d3e16bc_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_64f5b5b6-8a30-4741-befe-dae1d6e71abd_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt conversion, equity instruments issued (in shares)</link:label>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_label_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Debt Conversion, Equity Instruments Issued</link:label>
    <link:label id="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Debt Conversion, Equity Instruments Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" xlink:to="lab_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionDomain_e7473df1-152d-4868-a6fa-9984df2f4617_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction [Domain]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionDomain_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain" xlink:to="lab_us-gaap_RelatedPartyTransactionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_2024ed75-9937-4fb4-b5f1-6f13bf54ac0f_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Other Operating Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_7ad7b982-7112-45f0-ab2a-510d6e840e55_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_e0a54528-bbee-48f6-a017-9e3ed4589eb6_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Threshold consecutive trading days</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Convertible, Threshold Consecutive Trading Days</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:to="lab_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainLossOnSaleOfDerivatives_610a5292-d100-40e2-8ecd-099e79524166_terseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfDerivatives" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain (loss) in change in fair value</link:label>
    <link:label id="lab_us-gaap_GainLossOnSaleOfDerivatives_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfDerivatives" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain (Loss) on Sale of Derivatives</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfDerivatives" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfDerivatives"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfDerivatives" xlink:to="lab_us-gaap_GainLossOnSaleOfDerivatives" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AwardTypeAxis_3c629c69-b801-4941-bea0-2d46c9270f60_terseLabel_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type</link:label>
    <link:label id="lab_us-gaap_AwardTypeAxis_label_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="lab_us-gaap_AwardTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_a53129a2-6472-46c6-be54-f32553e1a668_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Grant&#160;Date Fair Value</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_470369af-a84f-4360-8ca5-91bbba5cd912_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consecutive trading days achieving maximum average market value</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Consecutive Trading Days Achieving Maximum Average Market Value</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Consecutive Trading Days Achieving Maximum Average Market Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AmortizationOfFinancingCosts_0514c127-915e-40d7-a263-c9370240cb66_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of issuance costs</link:label>
    <link:label id="lab_us-gaap_AmortizationOfFinancingCosts_label_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of Debt Issuance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfFinancingCosts" xlink:to="lab_us-gaap_AmortizationOfFinancingCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MaximumMember_85ee1ac4-cf37-463f-9e10-1a69bc64c841_terseLabel_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum</link:label>
    <link:label id="lab_srt_MaximumMember_label_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MaximumMember" xlink:to="lab_srt_MaximumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockSharesAuthorized_e5f44969-ed14-47e3-a555-bf23264130ec_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, shares authorized (in shares)</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesAuthorized_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Shares Authorized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesAuthorized" xlink:to="lab_us-gaap_PreferredStockSharesAuthorized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetainedEarningsMember_2fcc695e-0d71-4a76-bdb4-d5dfe3b0dead_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Deficit</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsMember_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember" xlink:to="lab_us-gaap_RetainedEarningsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_6201d740-42e0-49aa-acb6-668a4fd48b81_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesOutstanding" xlink:to="lab_us-gaap_PreferredStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByMeasurementBasisAxis_124d085f-1167-4c9b-b079-f134a3626d2d_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementBasisAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Basis [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByMeasurementBasisAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementBasisAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Basis [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis" xlink:to="lab_us-gaap_FairValueByMeasurementBasisAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingencyNewClaimsFiledNumber_8e743945-475a-4670-b1fb-f7e9677e7646_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss contingency, number of arbitration demands filed</link:label>
    <link:label id="lab_us-gaap_LossContingencyNewClaimsFiledNumber_label_en-US" xlink:label="lab_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, New Claims Filed, Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyNewClaimsFiledNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:to="lab_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_f11eb1c4-4180-481a-806d-10d37342cfc4_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_a262399a-bdae-4852-8b6b-e8eefcd3bf17_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net cash used in investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2d4bb193-8566-4fa0-9516-e7f37b941168_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PendingLitigationMember_033930b1-b1f1-4184-87cd-a150ceec1b1f_terseLabel_en-US" xlink:label="lab_us-gaap_PendingLitigationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pending Litigation</link:label>
    <link:label id="lab_us-gaap_PendingLitigationMember_label_en-US" xlink:label="lab_us-gaap_PendingLitigationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pending Litigation [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PendingLitigationMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PendingLitigationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PendingLitigationMember" xlink:to="lab_us-gaap_PendingLitigationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4730a75d-0a00-4765-a9c9-8bf9e7c3b1c5_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Award</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_OtherIncomeExpense_6971505a-01e4-4058-8908-6a35391ef7ba_terseLabel_en-US" xlink:label="lab_chgg_OtherIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other</link:label>
    <link:label id="lab_chgg_OtherIncomeExpense_label_en-US" xlink:label="lab_chgg_OtherIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Income (Expense)</link:label>
    <link:label id="lab_chgg_OtherIncomeExpense_documentation_en-US" xlink:label="lab_chgg_OtherIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Income (Expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_OtherIncomeExpense" xlink:href="chgg-20210331.xsd#chgg_OtherIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_OtherIncomeExpense" xlink:to="lab_chgg_OtherIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentTypeCategorizationMember_232ca7e3-e721-42c7-871f-f2228e6a8932_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentTypeCategorizationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments [Domain]</link:label>
    <link:label id="lab_us-gaap_InvestmentTypeCategorizationMember_label_en-US" xlink:label="lab_us-gaap_InvestmentTypeCategorizationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember" xlink:to="lab_us-gaap_InvestmentTypeCategorizationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrentAbstract_e6eee555-5f48-4c25-97cf-f68a73114d36_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrentAbstract_label_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Noncurrent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract" xlink:to="lab_us-gaap_LiabilitiesNoncurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_02a35c59-bdea-4c5a-a898-4aed2eb4ff39_terseLabel_en-US" xlink:label="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Aggregate consideration for principal amount exchanged</link:label>
    <link:label id="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_label_en-US" xlink:label="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Principal Amount Exchanged, Consideration Transferred</link:label>
    <link:label id="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_documentation_en-US" xlink:label="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Principal Amount Exchanged, Consideration Transferred</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" xlink:to="lab_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_f8c8bf88-ebe8-4c37-a065-1a01fac0a939_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Target level of award</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value, Target Level Of Award</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value, Target Level Of Award</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_4ee626ad-50fb-4d39-a732-b7dff11d8284_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_label_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromRelatedParties_cdec7c39-8402-40ac-9e4b-96d3eec1d56e_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromRelatedParties" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from related parties</link:label>
    <link:label id="lab_us-gaap_RevenueFromRelatedParties_label_en-US" xlink:label="lab_us-gaap_RevenueFromRelatedParties" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Related Parties</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromRelatedParties" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromRelatedParties"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromRelatedParties" xlink:to="lab_us-gaap_RevenueFromRelatedParties" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LitigationStatusDomain_c279756b-5747-416c-b379-e3441ca01282_terseLabel_en-US" xlink:label="lab_us-gaap_LitigationStatusDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Status [Domain]</link:label>
    <link:label id="lab_us-gaap_LitigationStatusDomain_label_en-US" xlink:label="lab_us-gaap_LitigationStatusDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Litigation Status [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LitigationStatusDomain" xlink:to="lab_us-gaap_LitigationStatusDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_73ecf3eb-783d-481d-b5d7-f58d70431da7_terseLabel_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Conversion ratio</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_label_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Conversion Ratio</link:label>
    <link:label id="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_documentation_en-US" xlink:label="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Arrangement By Share Based Payment Award, Conversion Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" xlink:to="lab_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_7e755101-4df5-46d5-8a94-2e75993c9c69_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Loss Per Share</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareTextBlock" xlink:to="lab_us-gaap_EarningsPerShareTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a3bb97cc-5f70-4d5a-a707-9803fc3c625e_terseLabel_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_TAPDInc.Member_0a79e917-db10-45cf-9add-9e6c40614db4_terseLabel_en-US" xlink:label="lab_chgg_TAPDInc.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TAPD, Inc.</link:label>
    <link:label id="lab_chgg_TAPDInc.Member_label_en-US" xlink:label="lab_chgg_TAPDInc.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TAPD, Inc. [Member]</link:label>
    <link:label id="lab_chgg_TAPDInc.Member_documentation_en-US" xlink:label="lab_chgg_TAPDInc.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TAPD, Inc. [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TAPDInc.Member" xlink:href="chgg-20210331.xsd#chgg_TAPDInc.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_TAPDInc.Member" xlink:to="lab_chgg_TAPDInc.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_81f23ae4-8941-48b0-ac5e-ef1a096b4942_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Current [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityShellCompany_ec488070-211e-436f-a86a-d64fc6522fb7_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Shell Company</link:label>
    <link:label id="lab_dei_EntityShellCompany_label_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Shell Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityShellCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany" xlink:to="lab_dei_EntityShellCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_e1492e90-7f48-4c2b-88e9-df6bc5bf29f9_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Measurements, Recurring</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Recurring [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:to="lab_us-gaap_FairValueMeasurementsRecurringMember" xlink:type="arc" order="1"/>
    <link:label id="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock_e4e87932-9aa4-4753-8f73-e22f24817ec1_terseLabel_en-US" xlink:label="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule Of Interest Expense Recognized</link:label>
    <link:label id="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock_label_en-US" xlink:label="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule Of Interest Expense Recognized [Table Text Block]</link:label>
    <link:label id="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock_documentation_en-US" xlink:label="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule Of Interest Expense Recognized [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" xlink:href="chgg-20210331.xsd#chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" xlink:to="lab_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_e5fa979f-e4b4-4861-b1e9-ee68596b0fc8_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Recent Accounting Pronouncements</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_111185e3-83cc-44dc-b5b3-b8138b5c0ec5_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShortTermInvestments_4927e1b5-77d3-40ae-ac44-d2d098f38cde_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term investments</link:label>
    <link:label id="lab_us-gaap_ShortTermInvestments_label_en-US" xlink:label="lab_us-gaap_ShortTermInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermInvestments" xlink:to="lab_us-gaap_ShortTermInvestments" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>9
<FILENAME>chgg-20210331_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:7620c16c-72f1-4706-8c7f-035d13f64afa,g:676e331c-5624-4c9f-b3c2-ce75be2bd13e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.chegg.com/role/CoverPage" xlink:type="simple" xlink:href="chgg-20210331.xsd#CoverPage"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_d692f08c-c879-4c3c-8fb1-f6125f824006" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_DocumentType_d692f08c-c879-4c3c-8fb1-f6125f824006" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_72bf15ec-d5ec-4849-885e-8b677c1e2e2f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentQuarterlyReport"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_DocumentQuarterlyReport_72bf15ec-d5ec-4849-885e-8b677c1e2e2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_606f763e-f01d-45d4-960b-dde3be9d54b0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_DocumentPeriodEndDate_606f763e-f01d-45d4-960b-dde3be9d54b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_2d1e29c1-3b74-4216-ae98-a5a382e63abe" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentTransitionReport"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_DocumentTransitionReport_2d1e29c1-3b74-4216-ae98-a5a382e63abe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_0371b8fb-715d-4970-a6c8-5892d0e5f783" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityFileNumber_0371b8fb-715d-4970-a6c8-5892d0e5f783" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_73e4dfb1-3e1b-45b0-a75a-f4a7916ced1b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityRegistrantName_73e4dfb1-3e1b-45b0-a75a-f4a7916ced1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_f6a36d3b-fc69-458a-aa06-aba2abfcf362" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityIncorporationStateCountryCode_f6a36d3b-fc69-458a-aa06-aba2abfcf362" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_a103af80-5514-4df3-9740-6e42c33d5981" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityTaxIdentificationNumber_a103af80-5514-4df3-9740-6e42c33d5981" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_cfcc8d0a-1e34-4da5-b602-abb33069d33b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityAddressAddressLine1_cfcc8d0a-1e34-4da5-b602-abb33069d33b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_3bc226cb-bc32-4a9e-a7f4-27be44fff1c1" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityAddressCityOrTown_3bc226cb-bc32-4a9e-a7f4-27be44fff1c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_dbc4c3dc-0bce-41b6-aef2-d784b4fbb024" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityAddressStateOrProvince_dbc4c3dc-0bce-41b6-aef2-d784b4fbb024" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_7e2236c3-f849-498a-b8d2-33bb8b4233b4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityAddressPostalZipCode_7e2236c3-f849-498a-b8d2-33bb8b4233b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_e145ff71-51c2-4180-8b39-b6e121642cdd" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_CityAreaCode_e145ff71-51c2-4180-8b39-b6e121642cdd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_554ca7fa-a304-4187-9dfe-320f08b03f47" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_LocalPhoneNumber_554ca7fa-a304-4187-9dfe-320f08b03f47" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_241554a5-1777-4aeb-af68-4f85bff9588d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_Security12bTitle_241554a5-1777-4aeb-af68-4f85bff9588d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_4ceee9be-2021-4dc9-9b30-6fea2d3a5a68" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_TradingSymbol_4ceee9be-2021-4dc9-9b30-6fea2d3a5a68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_3a8033a5-b11c-4367-934e-8403bc094720" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_SecurityExchangeName_3a8033a5-b11c-4367-934e-8403bc094720" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_4f990c2b-bbad-4e93-951c-e2b0c6080737" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCurrentReportingStatus"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityCurrentReportingStatus_4f990c2b-bbad-4e93-951c-e2b0c6080737" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_a5cebc95-345b-48c1-9824-f85aafea4354" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityInteractiveDataCurrent_a5cebc95-345b-48c1-9824-f85aafea4354" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_9c90720a-6d0e-4d40-9d89-aadd0c94bb8f" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityFilerCategory"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityFilerCategory_9c90720a-6d0e-4d40-9d89-aadd0c94bb8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_50382749-4f93-42dc-a2cc-df40def34fe9" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityEmergingGrowthCompany_50382749-4f93-42dc-a2cc-df40def34fe9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_46495da6-15e0-468e-98d1-e7af04c4032d" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntitySmallBusiness"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntitySmallBusiness_46495da6-15e0-468e-98d1-e7af04c4032d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_a964b52f-ae5d-4973-983a-76760cd2b501" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityShellCompany"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityShellCompany_a964b52f-ae5d-4973-983a-76760cd2b501" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_5c4afc81-e4fb-4501-90a1-067935eeca17" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_5c4afc81-e4fb-4501-90a1-067935eeca17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_83c2c471-88a0-41a0-b976-4cf416799929" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_EntityCentralIndexKey_83c2c471-88a0-41a0-b976-4cf416799929" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_3c668d27-673d-425c-955b-760092744f3b" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_CurrentFiscalYearEndDate_3c668d27-673d-425c-955b-760092744f3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_d56bf08d-0a90-4203-bdb6-19d8c0c4e5e4" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentFiscalYearFocus"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_DocumentFiscalYearFocus_d56bf08d-0a90-4203-bdb6-19d8c0c4e5e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_c496a66c-1527-49bb-aff4-322a147a7d0e" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_DocumentFiscalPeriodFocus_c496a66c-1527-49bb-aff4-322a147a7d0e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_a2187d2d-55df-43dd-830d-68ae1269f1d0" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_f4416575-8378-4fe1-b91f-689ab17522c5" xlink:to="loc_dei_AmendmentFlag_a2187d2d-55df-43dd-830d-68ae1269f1d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_d9a5f995-b89e-49de-be6f-8c4d2d6cf805" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_d9a5f995-b89e-49de-be6f-8c4d2d6cf805" xlink:to="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_fc3a1bfb-74c9-406e-bc0a-c2a5aaf3cd20" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_fc3a1bfb-74c9-406e-bc0a-c2a5aaf3cd20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_c901b301-f1da-41db-be27-ed82cfd59b37" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:to="loc_us-gaap_ShortTermInvestments_c901b301-f1da-41db-be27-ed82cfd59b37" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_c9e0e8be-2b9c-4e4d-847c-c79b980301a9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_c9e0e8be-2b9c-4e4d-847c-c79b980301a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_48ebb197-6906-42f3-9e07-de9745d1ae0d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_48ebb197-6906-42f3-9e07-de9745d1ae0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_a9143f38-a616-4bf0-9ed4-1c8fe38bcaa4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:to="loc_us-gaap_OtherAssetsCurrent_a9143f38-a616-4bf0-9ed4-1c8fe38bcaa4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_2b0266d7-a2e3-4b57-af08-67f67b4755e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_2e685430-d704-4c96-a3a7-199e080816fb" xlink:to="loc_us-gaap_AssetsCurrent_2b0266d7-a2e3-4b57-af08-67f67b4755e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_ba1d538b-d1f2-4bd8-84b7-90602ffb4493" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_LongTermInvestments_ba1d538b-d1f2-4bd8-84b7-90602ffb4493" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryNet_16fadee4-6b65-4873-960b-f6b457c4df67" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_chgg_TextbookLibraryNet_16fadee4-6b65-4873-960b-f6b457c4df67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_1a50aab9-87d5-42dd-a3f1-9b38cc7f70b0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_1a50aab9-87d5-42dd-a3f1-9b38cc7f70b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_786946e6-1a53-4a87-8762-283079a551ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_Goodwill_786946e6-1a53-4a87-8762-283079a551ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1a49941e-df8d-4354-b3e5-dadc623fab85" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1a49941e-df8d-4354-b3e5-dadc623fab85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_f51e4584-3111-45dc-9876-b16337880e3f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_f51e4584-3111-45dc-9876-b16337880e3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_fd975e91-1c72-4c54-8d4c-cf5574813fb8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_fd975e91-1c72-4c54-8d4c-cf5574813fb8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_2c63a008-20c6-4aa1-8772-0c53fc4d9614" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Assets"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_9d07edca-984a-4289-8887-b3059042661b" xlink:to="loc_us-gaap_Assets_2c63a008-20c6-4aa1-8772-0c53fc4d9614" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_d9a5f995-b89e-49de-be6f-8c4d2d6cf805" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_007706ac-d1c2-46ba-899a-12bec4a1fe1c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:to="loc_us-gaap_AccountsPayableCurrent_007706ac-d1c2-46ba-899a-12bec4a1fe1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_ef4c3e0b-ed69-4328-a6e1-05b7478713ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_ef4c3e0b-ed69-4328-a6e1-05b7478713ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_2e7150cc-c969-41fe-8911-b3fa350862f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_2e7150cc-c969-41fe-8911-b3fa350862f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesCurrent_8b11d333-3a2c-4c19-9bf6-8dea43254cb8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:to="loc_us-gaap_SeniorNotesCurrent_8b11d333-3a2c-4c19-9bf6-8dea43254cb8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_42e700a8-bca0-4286-b4a8-7724f66fde4f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_d710c3da-cf78-4e7d-861c-e466ba77dff5" xlink:to="loc_us-gaap_LiabilitiesCurrent_42e700a8-bca0-4286-b4a8-7724f66fde4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_eacd953b-50fc-4a91-83ac-0bea7108c864" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_eacd953b-50fc-4a91-83ac-0bea7108c864" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorLongTermNotes_293faa42-e040-4064-8829-358bc13f8556" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorLongTermNotes"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_eacd953b-50fc-4a91-83ac-0bea7108c864" xlink:to="loc_us-gaap_SeniorLongTermNotes_293faa42-e040-4064-8829-358bc13f8556" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_62bbc565-ce4d-4cab-ba41-7061c5defa74" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_eacd953b-50fc-4a91-83ac-0bea7108c864" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_62bbc565-ce4d-4cab-ba41-7061c5defa74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_965ebe4e-663f-40ec-a994-1ce3f6b4ace5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_eacd953b-50fc-4a91-83ac-0bea7108c864" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_965ebe4e-663f-40ec-a994-1ce3f6b4ace5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_a9913249-1ee2-4a6c-a6ed-6136d01ea475" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_eacd953b-50fc-4a91-83ac-0bea7108c864" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_a9913249-1ee2-4a6c-a6ed-6136d01ea475" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_fe713041-136c-4780-8537-e9a2765f00c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Liabilities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:to="loc_us-gaap_Liabilities_fe713041-136c-4780-8537-e9a2765f00c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_c62185a5-de2d-403b-a59b-a71cfc25c251" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:to="loc_us-gaap_CommitmentsAndContingencies_c62185a5-de2d-403b-a59b-a71cfc25c251" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityAbstract"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:to="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_1a3b758f-bb4d-4b15-8779-b418ec8eb67d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:to="loc_us-gaap_PreferredStockValue_1a3b758f-bb4d-4b15-8779-b418ec8eb67d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_a0672483-7e8d-4cff-96df-4131107e9cd5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:to="loc_us-gaap_CommonStockValue_a0672483-7e8d-4cff-96df-4131107e9cd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_9d91c9bc-2ebd-4c8a-b256-16629c567d3c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_9d91c9bc-2ebd-4c8a-b256-16629c567d3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_756b211a-c327-4479-9c28-c86f1e39aecc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_756b211a-c327-4479-9c28-c86f1e39aecc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_7b6485a5-390f-4752-8204-7add36cea126" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_7b6485a5-390f-4752-8204-7add36cea126" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_0213d317-1489-4e9f-b0ed-0a79ea66a1c2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_115e296f-5732-4afc-816f-23c514cdb5b4" xlink:to="loc_us-gaap_StockholdersEquity_0213d317-1489-4e9f-b0ed-0a79ea66a1c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_88b51418-2951-45eb-8a60-a35d6e3e88bd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_54e5177b-fd89-4b1b-ab3c-4fac3ed5fa52" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_88b51418-2951-45eb-8a60-a35d6e3e88bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_02ca4fd4-95a2-4019-913f-e9d26201d30c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_02ca4fd4-95a2-4019-913f-e9d26201d30c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_64d9b58b-3eef-423f-b950-ab138996bb87" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_64d9b58b-3eef-423f-b950-ab138996bb87" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_d9ba2ac8-5577-4510-a1f4-eff4522f42cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_d9ba2ac8-5577-4510-a1f4-eff4522f42cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_b864db65-4394-42cd-9e58-6670a05ea20e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_PreferredStockSharesIssued_b864db65-4394-42cd-9e58-6670a05ea20e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_041fe5f7-3e17-4f7d-9478-4e282c87e304" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_041fe5f7-3e17-4f7d-9478-4e282c87e304" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_88e62a0b-22f7-4f48-b34e-19a69bdcec33" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_88e62a0b-22f7-4f48-b34e-19a69bdcec33" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_3c5405bf-597d-4283-8cde-ecbae97a3302" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_3c5405bf-597d-4283-8cde-ecbae97a3302" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_7eb9ba3d-928a-4299-9e2d-a36eb1990ba9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_CommonStockSharesIssued_7eb9ba3d-928a-4299-9e2d-a36eb1990ba9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_39a6a234-edd7-4b1f-b41d-0e380aedfde8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_f73602e0-35dd-4fb1-9265-469895eb1ea7" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_39a6a234-edd7-4b1f-b41d-0e380aedfde8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_6bfdc44f-c3b5-449c-9171-0ffc1fbab97e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_6bfdc44f-c3b5-449c-9171-0ffc1fbab97e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_ac78760d-d24b-4a3a-a197-785a6e318f08" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfRevenue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_CostOfRevenue_ac78760d-d24b-4a3a-a197-785a6e318f08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_9f22f5bf-74dd-47f9-9397-3d69512ffdf1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GrossProfit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_GrossProfit_9f22f5bf-74dd-47f9-9397-3d69512ffdf1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_88387d40-943a-45fb-8586-e3b2a2028b30" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_OperatingExpensesAbstract_88387d40-943a-45fb-8586-e3b2a2028b30" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_b3259a1a-e04b-47c5-b9ef-978620baeb16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_88387d40-943a-45fb-8586-e3b2a2028b30" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_b3259a1a-e04b-47c5-b9ef-978620baeb16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_172699a5-e6e5-42db-84b7-7ea9bb5d547d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_88387d40-943a-45fb-8586-e3b2a2028b30" xlink:to="loc_us-gaap_SellingAndMarketingExpense_172699a5-e6e5-42db-84b7-7ea9bb5d547d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_865c64fc-4fdf-477e-8509-40b3ae124605" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_88387d40-943a-45fb-8586-e3b2a2028b30" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_865c64fc-4fdf-477e-8509-40b3ae124605" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_d5bb9150-c94e-4227-8dac-435fb772aad7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingExpenses"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_88387d40-943a-45fb-8586-e3b2a2028b30" xlink:to="loc_us-gaap_OperatingExpenses_d5bb9150-c94e-4227-8dac-435fb772aad7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_511ced7d-75f6-42d1-a58e-d7a349a5094d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_OperatingIncomeLoss_511ced7d-75f6-42d1-a58e-d7a349a5094d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_30c43698-fda1-468a-a7dc-58324676ea07" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_30c43698-fda1-468a-a7dc-58324676ea07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_aa3c3c01-3f02-4470-b27c-b846d39097b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_30c43698-fda1-468a-a7dc-58324676ea07" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_aa3c3c01-3f02-4470-b27c-b846d39097b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_16e7e397-f64f-44b8-a7f8-08022000c0a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_30c43698-fda1-468a-a7dc-58324676ea07" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_16e7e397-f64f-44b8-a7f8-08022000c0a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_863a9f8d-b217-4328-8bba-cc381852c1d7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_30c43698-fda1-468a-a7dc-58324676ea07" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_863a9f8d-b217-4328-8bba-cc381852c1d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_29c1a9a5-828c-4ec7-a277-25bf2454db4a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_29c1a9a5-828c-4ec7-a277-25bf2454db4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_5ce616ca-bbbe-4cd1-aab8-1409e4f40b25" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_5ce616ca-bbbe-4cd1-aab8-1409e4f40b25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_71ed8620-223e-4146-be69-3878736b7e5a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_NetIncomeLoss_71ed8620-223e-4146-be69-3878736b7e5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_7d0ef848-f05f-4431-be81-83805e6d4408" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_7d0ef848-f05f-4431-be81-83805e6d4408" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_7d858759-0b73-4281-a1f1-5e2757f50045" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_6dd37ab3-6dde-4133-bbef-dfc1449df241" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_7d858759-0b73-4281-a1f1-5e2757f50045" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_83bacfee-82de-42a9-8754-5d5b2b0f1c88" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_f7bfe5d3-7cf8-424d-b62f-d5c8cd2fdecf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_83bacfee-82de-42a9-8754-5d5b2b0f1c88" xlink:to="loc_us-gaap_NetIncomeLoss_f7bfe5d3-7cf8-424d-b62f-d5c8cd2fdecf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_c43700a3-3015-4c65-8c7e-cef44de16857" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_83bacfee-82de-42a9-8754-5d5b2b0f1c88" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_c43700a3-3015-4c65-8c7e-cef44de16857" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_6c0b28cc-59c3-4e82-a29c-57fa8ba3b535" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_c43700a3-3015-4c65-8c7e-cef44de16857" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_6c0b28cc-59c3-4e82-a29c-57fa8ba3b535" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_519e1435-e439-40da-a9f6-eef1aac74a70" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_c43700a3-3015-4c65-8c7e-cef44de16857" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_519e1435-e439-40da-a9f6-eef1aac74a70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6c39fa93-b228-4789-8e47-35f8ffd1541b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract_c43700a3-3015-4c65-8c7e-cef44de16857" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6c39fa93-b228-4789-8e47-35f8ffd1541b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_687f656b-951e-4af3-bd8d-74feaabc492a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_83bacfee-82de-42a9-8754-5d5b2b0f1c88" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_687f656b-951e-4af3-bd8d-74feaabc492a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_bee3440c-ab31-46b5-b132-af186157afb3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_bee3440c-ab31-46b5-b132-af186157afb3" xlink:to="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3ceb07bc-c1e8-4ce5-b3e1-6b80b5291476" xlink:to="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_2804c385-ffbf-42a2-902e-4cc840013400" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_CommonStockMember_2804c385-ffbf-42a2-902e-4cc840013400" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_99c9de75-df8c-4e38-b868-1d2ca73fdedf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_99c9de75-df8c-4e38-b868-1d2ca73fdedf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_c1976bd2-acb1-42fb-9960-ecc9a589c645" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_c1976bd2-acb1-42fb-9960-ecc9a589c645" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_c1e28666-9540-49e2-814b-1b3232dcaa76" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_88b52f9f-008a-4452-8df5-3bde3cb4d39f" xlink:to="loc_us-gaap_RetainedEarningsMember_c1e28666-9540-49e2-814b-1b3232dcaa76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_2ad2a232-54c8-49fd-b044-5428b8f6df57" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_16162027-be2c-47eb-afd6-f2951b8b58f9" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_2ad2a232-54c8-49fd-b044-5428b8f6df57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_7a536956-8104-4fd6-991f-d13f85ba7980" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_2ad2a232-54c8-49fd-b044-5428b8f6df57" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_7a536956-8104-4fd6-991f-d13f85ba7980" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_32c27df3-7fcf-4eff-ae89-d5a20868d3c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_1bc9262b-11df-4f17-bc1c-862ae4601f1b" xlink:to="loc_us-gaap_TypeOfAdoptionMember_32c27df3-7fcf-4eff-ae89-d5a20868d3c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AccountingStandardsUpdate202006Member_58008319-780e-414e-a828-c38881123395" xlink:href="chgg-20210331.xsd#chgg_AccountingStandardsUpdate202006Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_32c27df3-7fcf-4eff-ae89-d5a20868d3c9" xlink:to="loc_chgg_AccountingStandardsUpdate202006Member_58008319-780e-414e-a828-c38881123395" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_667f48a4-4e94-49d3-ae32-23d1eb0cd85c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ae435e3b-5863-4934-8c65-1519be0f099e" xlink:to="loc_us-gaap_StatementLineItems_667f48a4-4e94-49d3-ae32-23d1eb0cd85c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_667f48a4-4e94-49d3-ae32-23d1eb0cd85c" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_bf7a2ce1-dd88-4abb-9876-67f60c0ad5fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_bf7a2ce1-dd88-4abb-9876-67f60c0ad5fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_7bcfba35-dc26-4c7d-a41b-128497ea43cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockholdersEquity_7bcfba35-dc26-4c7d-a41b-128497ea43cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingStandardsUpdateExtensibleList_337b5778-73a7-4398-a816-eac13674a170" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountingStandardsUpdateExtensibleList"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_AccountingStandardsUpdateExtensibleList_337b5778-73a7-4398-a816-eac13674a170" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_3964bc68-c2c0-4d73-94a8-bcd4225cad55" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_3964bc68-c2c0-4d73-94a8-bcd4225cad55" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_cfc56646-fe83-4595-a007-abd8c37b05b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_cfc56646-fe83-4595-a007-abd8c37b05b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt_140e6731-5231-454f-8d3e-780e1077fd3e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt_140e6731-5231-454f-8d3e-780e1077fd3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2c4d915c-0f20-4e2f-8d71-29b7e291c738" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2c4d915c-0f20-4e2f-8d71-29b7e291c738" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_cda3871a-be08-4139-913b-93ea7b8fbc2f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_cda3871a-be08-4139-913b-93ea7b8fbc2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_83b27d55-61eb-4313-9149-433c3c1bf985" xlink:href="chgg-20210331.xsd#chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall_83b27d55-61eb-4313-9149-433c3c1bf985" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_8b161561-3894-473c-bab3-1a1a9bda201a" xlink:href="chgg-20210331.xsd#chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised_8b161561-3894-473c-bab3-1a1a9bda201a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_368a89d6-6865-4efc-b842-f7ac07c3a3a2" xlink:href="chgg-20210331.xsd#chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised_368a89d6-6865-4efc-b842-f7ac07c3a3a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_9c331c37-287c-4f0d-bb09-8381c92620e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_9c331c37-287c-4f0d-bb09-8381c92620e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_51af6368-f9c3-4b5a-a573-f1a5933a596b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_51af6368-f9c3-4b5a-a573-f1a5933a596b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_ae42693f-caa5-4fb9-a51d-5ca7067595e3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_ae42693f-caa5-4fb9-a51d-5ca7067595e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_723c4388-0aa2-489d-b83f-d2d864e7024b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_723c4388-0aa2-489d-b83f-d2d864e7024b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_3283a58e-f708-4775-ad2a-3be4fb9cb746" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_NetIncomeLoss_3283a58e-f708-4775-ad2a-3be4fb9cb746" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_b9fb373e-d5bd-4d9c-970f-25fef04feb7d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_b9fb373e-d5bd-4d9c-970f-25fef04feb7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_d1d2b729-4b23-426c-be88-b144a0f2cdcb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_b1a3d618-2ebe-46e1-82e6-440414ff6879" xlink:to="loc_us-gaap_StockholdersEquity_d1d2b729-4b23-426c-be88-b144a0f2cdcb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="chgg-20210331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_348264e9-3ef2-4403-b9d0-2031699a72bd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_348264e9-3ef2-4403-b9d0-2031699a72bd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b8f2e270-ba4a-453b-ba57-dc8eec52d649" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_348264e9-3ef2-4403-b9d0-2031699a72bd" xlink:to="loc_us-gaap_NetIncomeLoss_b8f2e270-ba4a-453b-ba57-dc8eec52d649" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_348264e9-3ef2-4403-b9d0-2031699a72bd" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DepreciationTextbookLibrary_85290e99-f8ca-4623-aa62-7c86f1df5154" xlink:href="chgg-20210331.xsd#chgg_DepreciationTextbookLibrary"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_chgg_DepreciationTextbookLibrary_85290e99-f8ca-4623-aa62-7c86f1df5154" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization_140004e9-88e0-4057-9aa8-ade17e5cec00" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherDepreciationAndAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_OtherDepreciationAndAmortization_140004e9-88e0-4057-9aa8-ade17e5cec00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_48b18f56-8228-43c1-9238-884ca35ce3f2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_ShareBasedCompensation_48b18f56-8228-43c1-9238-884ca35ce3f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_c6b969d4-9cf7-49eb-a182-e8d5c00b520b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_c6b969d4-9cf7-49eb-a182-e8d5c00b520b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_68be69fb-2cd5-4c99-bf56-755a34a55d2e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_68be69fb-2cd5-4c99-bf56-755a34a55d2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_22a4b1d1-b3de-4cad-8793-df098db0f46c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_22a4b1d1-b3de-4cad-8793-df098db0f46c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_c20acebb-492e-4bf0-8f10-52c6664346a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_c20acebb-492e-4bf0-8f10-52c6664346a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_356bb5ab-5ba5-406e-9abe-dc0167e27626" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_356bb5ab-5ba5-406e-9abe-dc0167e27626" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryGainLossNet_09fa1fef-843b-45ed-a130-0dfb84bfc84f" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryGainLossNet"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_chgg_TextbookLibraryGainLossNet_09fa1fef-843b-45ed-a130-0dfb84bfc84f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_fb2c6532-e0c8-4546-8b80-6f388046e6fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseCost"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_OperatingLeaseCost_fb2c6532-e0c8-4546-8b80-6f388046e6fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_8dae8e03-475e-4555-8ef9-458a860696d4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_8dae8e03-475e-4555-8ef9-458a860696d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_be1de1f9-8c34-4245-8ea8-1710be0995cf" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_61439018-50d2-4532-91aa-be7039fd83a0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_61439018-50d2-4532-91aa-be7039fd83a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpensesOther_b205a05d-0eed-4b2e-a187-e3ff807c340d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpensesOther"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpensesOther_b205a05d-0eed-4b2e-a187-e3ff807c340d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_19c7d2e1-76df-4abc-af7f-a55d23c10516" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_19c7d2e1-76df-4abc-af7f-a55d23c10516" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_5450ab4f-0fca-49c9-95af-e7a9867d0b3c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_5450ab4f-0fca-49c9-95af-e7a9867d0b3c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_3910173e-3910-4a53-9f7e-5f0c5ec03806" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInDeferredRevenue_3910173e-3910-4a53-9f7e-5f0c5ec03806" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_c82cb26f-6a62-4f9e-846f-909a7b4a6ff8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_c82cb26f-6a62-4f9e-846f-909a7b4a6ff8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ff66a648-e590-4a93-9a93-196906fc1502" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_eed0172c-acda-4195-8dc7-0056a7812ac6" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_ff66a648-e590-4a93-9a93-196906fc1502" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f2cf951f-a04b-42ff-a79f-b263028887c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_348264e9-3ef2-4403-b9d0-2031699a72bd" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_f2cf951f-a04b-42ff-a79f-b263028887c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_57f9c8c3-c985-4589-a252-db5b6ef73edf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_57f9c8c3-c985-4589-a252-db5b6ef73edf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentToPurchasesTextbooks_6cff5f39-e477-4793-a069-413db198540b" xlink:href="chgg-20210331.xsd#chgg_PaymentToPurchasesTextbooks"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_chgg_PaymentToPurchasesTextbooks_6cff5f39-e477-4793-a069-413db198540b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromDispositionOfTextbooks_ff7d487b-424b-4d60-ba37-6d4df068a269" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromDispositionOfTextbooks"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_chgg_ProceedsFromDispositionOfTextbooks_ff7d487b-424b-4d60-ba37-6d4df068a269" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities_97a65e89-917a-4776-aa12-10aabcf1eb48" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_PaymentsToAcquireMarketableSecurities_97a65e89-917a-4776-aa12-10aabcf1eb48" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_46235432-61b9-4a91-bf1c-06ed34be7e2e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_46235432-61b9-4a91-bf1c-06ed34be7e2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_82638d23-b6e9-4566-9b0c-dafbf8a7861d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireEquityMethodInvestments"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_PaymentsToAcquireEquityMethodInvestments_82638d23-b6e9-4566-9b0c-dafbf8a7861d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_b75509e9-f136-4a43-a560-c52817e893af" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_b75509e9-f136-4a43-a560-c52817e893af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_f59cd28b-92bf-4038-a170-74c3c49bbef3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_f59cd28b-92bf-4038-a170-74c3c49bbef3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f8491aca-a29a-4d4f-bd17-3ccdddea99b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_65697c1c-0560-4e1a-80a4-3bfa6333eca1" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_f8491aca-a29a-4d4f-bd17-3ccdddea99b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_866f8713-80f2-42b6-8ef9-91f3bbf227e0" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:to="loc_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan_866f8713-80f2-42b6-8ef9-91f3bbf227e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_971f78a0-c928-4192-ae5a-cafd009629d0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_971f78a0-c928-4192-ae5a-cafd009629d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_20fc8351-79c8-4aac-9220-fd9c32b16eb6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_20fc8351-79c8-4aac-9220-fd9c32b16eb6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt_36ba5eb9-2104-4430-905d-c3255d254eb9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt_36ba5eb9-2104-4430-905d-c3255d254eb9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_45f2413b-0ec5-422e-8590-c75f233762e3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_45f2413b-0ec5-422e-8590-c75f233762e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e2e6af3a-88b8-4e44-b9ad-9ebe183dd8e8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_6b2abc28-0135-449b-a0bc-bae0606421e1" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_e2e6af3a-88b8-4e44-b9ad-9ebe183dd8e8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_0d2910ab-839f-46fb-a320-12f78cce516e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_0d2910ab-839f-46fb-a320-12f78cce516e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_f959d3eb-96a5-4c46-a2e3-0faf683573b6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_f959d3eb-96a5-4c46-a2e3-0faf683573b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_08a8e2e8-c07b-456e-a79f-c57d326d6ed4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_08a8e2e8-c07b-456e-a79f-c57d326d6ed4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_44ba52d5-3860-4737-a23d-c27f2885ab7a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_44ba52d5-3860-4737-a23d-c27f2885ab7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_d396f0d4-51b0-46a6-b190-1740689c4300" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestPaidNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_44ba52d5-3860-4737-a23d-c27f2885ab7a" xlink:to="loc_us-gaap_InterestPaidNet_d396f0d4-51b0-46a6-b190-1740689c4300" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_b949895a-5ddd-41ae-aea1-6e0970e3c08d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_44ba52d5-3860-4737-a23d-c27f2885ab7a" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_b949895a-5ddd-41ae-aea1-6e0970e3c08d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_c51fc0c7-7165-48d9-9ae5-f2b068b40f47" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashFlowOperatingActivitiesLesseeAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_44ba52d5-3860-4737-a23d-c27f2885ab7a" xlink:to="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_c51fc0c7-7165-48d9-9ae5-f2b068b40f47" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_33402ecb-6870-4f50-a817-8ad883cc197e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeasePayments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowOperatingActivitiesLesseeAbstract_c51fc0c7-7165-48d9-9ae5-f2b068b40f47" xlink:to="loc_us-gaap_OperatingLeasePayments_33402ecb-6870-4f50-a817-8ad883cc197e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_15040063-1f91-4b6a-ae4f-c2b15e88ff49" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_15040063-1f91-4b6a-ae4f-c2b15e88ff49" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_1b953263-fdc1-4de9-b8d6-b398744190a0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_15040063-1f91-4b6a-ae4f-c2b15e88ff49" xlink:to="loc_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1_1b953263-fdc1-4de9-b8d6-b398744190a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_StockIssuedRepaymentForConvertibleSeniorNotes_45fe745c-b33b-4fa8-a198-a10bab05a9b7" xlink:href="chgg-20210331.xsd#chgg_StockIssuedRepaymentForConvertibleSeniorNotes"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_15040063-1f91-4b6a-ae4f-c2b15e88ff49" xlink:to="loc_chgg_StockIssuedRepaymentForConvertibleSeniorNotes_45fe745c-b33b-4fa8-a198-a10bab05a9b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_92643463-17dc-47c5-90bd-bd57a347c1cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_97084938-6032-47f2-9e3e-d1104ec23d32" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_92643463-17dc-47c5-90bd-bd57a347c1cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_78e627dd-3fc0-45a2-88c1-c01f718935b8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_92643463-17dc-47c5-90bd-bd57a347c1cc" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_78e627dd-3fc0-45a2-88c1-c01f718935b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_3abaa2a7-f113-41be-ba6c-8d2a388d7179" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_92643463-17dc-47c5-90bd-bd57a347c1cc" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_3abaa2a7-f113-41be-ba6c-8d2a388d7179" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_358ca015-ff72-4062-acdf-a64fb5e2832a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_92643463-17dc-47c5-90bd-bd57a347c1cc" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_358ca015-ff72-4062-acdf-a64fb5e2832a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0b8dff0c-1dbf-423f-b11b-1d0ecbb171da" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_92643463-17dc-47c5-90bd-bd57a347c1cc" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0b8dff0c-1dbf-423f-b11b-1d0ecbb171da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentation" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentation"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_1d25d49f-1d84-45c5-aaf2-631c33ada6ac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_defcc54f-9fbb-4b2f-9eca-3aafcc4108fe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_1d25d49f-1d84-45c5-aaf2-631c33ada6ac" xlink:to="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_defcc54f-9fbb-4b2f-9eca-3aafcc4108fe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_19d03041-21ae-46da-a76d-f9853ffec563" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_3a1666f0-e9b0-4885-a3ee-cdc3af3793f6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_19d03041-21ae-46da-a76d-f9853ffec563" xlink:to="loc_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock_3a1666f0-e9b0-4885-a3ee-cdc3af3793f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationPolicies"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_0438f1d2-b49c-4001-a45b-11a5bf5d4dc8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_0438f1d2-b49c-4001-a45b-11a5bf5d4dc8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtPolicyTextBlock_593799d7-a277-4f96-9aac-4906b01c6f68" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtPolicyTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:to="loc_us-gaap_DebtPolicyTextBlock_593799d7-a277-4f96-9aac-4906b01c6f68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_c958f80e-a98c-4720-a4cf-a3c8f2063bf7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_c958f80e-a98c-4720-a4cf-a3c8f2063bf7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_38c9ecc0-37ec-44a3-a7f9-febc22d6cab3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_38c9ecc0-37ec-44a3-a7f9-febc22d6cab3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UseOfEstimates_40309a7c-7be9-4013-b9e6-2fabe347ec1d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UseOfEstimates"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:to="loc_us-gaap_UseOfEstimates_40309a7c-7be9-4013-b9e6-2fabe347ec1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_ed392216-f031-49d1-9ed5-3c41a5bd571b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_de64dc66-1dca-4d2d-8be5-d37a6974a239" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_ed392216-f031-49d1-9ed5-3c41a5bd571b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_78eedd6c-2fd7-44ed-942c-dcb383128b09" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_78eedd6c-2fd7-44ed-942c-dcb383128b09" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_19c1f40a-00e7-44f3-82e3-3ec19da2ae2b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RestatementDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RestatementAxis_2c9d1616-3472-4a96-aab8-e99aec620033" xlink:to="loc_srt_RestatementDomain_19c1f40a-00e7-44f3-82e3-3ec19da2ae2b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember_58a42d41-5ad7-49fa-a419-c1b197d9129b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RevisionOfPriorPeriodReclassificationAdjustmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RestatementDomain_19c1f40a-00e7-44f3-82e3-3ec19da2ae2b" xlink:to="loc_srt_RevisionOfPriorPeriodReclassificationAdjustmentMember_58a42d41-5ad7-49fa-a419-c1b197d9129b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_eaaf240c-5196-4493-a8e3-8d329f97f5f4" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionAxis_383f2644-8cae-498d-bfcb-b34b99b51885" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_eaaf240c-5196-4493-a8e3-8d329f97f5f4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_cb87fb69-b41c-4b8a-ab73-c1856c419358" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CumulativeEffectPeriodOfAdoptionDomain_eaaf240c-5196-4493-a8e3-8d329f97f5f4" xlink:to="loc_srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember_cb87fb69-b41c-4b8a-ab73-c1856c419358" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_0c08eb8d-7294-4ba7-b579-ac6e9f635c61" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_a44dd4ad-463b-4533-bd1b-6b689373ccdc" xlink:to="loc_us-gaap_TypeOfAdoptionMember_0c08eb8d-7294-4ba7-b579-ac6e9f635c61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AccountingStandardsUpdate202006Member_993ff964-da16-45eb-8ee2-4fa030e4a665" xlink:href="chgg-20210331.xsd#chgg_AccountingStandardsUpdate202006Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_0c08eb8d-7294-4ba7-b579-ac6e9f635c61" xlink:to="loc_chgg_AccountingStandardsUpdate202006Member_993ff964-da16-45eb-8ee2-4fa030e4a665" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_29c244ac-3f13-4fac-99af-62834b8069e7" xlink:to="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_e9fc0de7-5473-4d61-993e-c2ee21a2331a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_e9fc0de7-5473-4d61-993e-c2ee21a2331a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_64647e48-ea50-48f3-b91b-ef1a1d79b691" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_ea0c02fb-e754-4613-84a8-b5ea5fe38de5" xlink:to="loc_us-gaap_RetainedEarningsMember_64647e48-ea50-48f3-b91b-ef1a1d79b691" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f33d4d2c-ef68-4645-8289-f8c2e8cd363b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_a4aeb8a5-30e7-4a3c-a326-2ba418e41026" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f33d4d2c-ef68-4645-8289-f8c2e8cd363b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_d83188a0-c4bd-4fe9-a027-2d683213ce10" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_f33d4d2c-ef68-4645-8289-f8c2e8cd363b" xlink:to="loc_us-gaap_SeniorNotesMember_d83188a0-c4bd-4fe9-a027-2d683213ce10" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_7c095d2d-a4cf-4e6a-a6e1-951ad972c87f" xlink:to="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_b4e208a8-9496-452b-b931-53115f773ccb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_b4e208a8-9496-452b-b931-53115f773ccb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_2c7097bb-a4d4-4f44-893b-486965836d8a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_2c7097bb-a4d4-4f44-893b-486965836d8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_ea366a90-eca6-44e0-a746-e0dc419ac64f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_eebd3a61-66b8-4693-ada7-5685d87896a2" xlink:to="loc_us-gaap_StockholdersEquity_ea366a90-eca6-44e0-a746-e0dc419ac64f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationOtherIncomeExpensesDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_b618882f-4ef0-4489-acfa-22350c43542a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_b618882f-4ef0-4489-acfa-22350c43542a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_0664e6c8-fd12-4407-92d4-a897b91a49c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_0664e6c8-fd12-4407-92d4-a897b91a49c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_dc6ad031-d47b-4ef6-a63a-88db76d2809b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_dc6ad031-d47b-4ef6-a63a-88db76d2809b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_ab53a885-16fa-43a8-9854-a8b37514a295" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_ab53a885-16fa-43a8-9854-a8b37514a295" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_OtherIncomeExpense_bd43480b-7ad7-465d-9817-0065be61ea52" xlink:href="chgg-20210331.xsd#chgg_OtherIncomeExpense"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:to="loc_chgg_OtherIncomeExpense_bd43480b-7ad7-465d-9817-0065be61ea52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_eeecd2bf-5d54-4e43-9ef9-97dc577b509f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_7d5dc998-e264-4d89-a8ed-f1a1ecc25710" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_eeecd2bf-5d54-4e43-9ef9-97dc577b509f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#BackgroundandBasisofPresentationConvertibleNotesDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_cc543db9-147a-423f-895b-de92ce180068" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_cc543db9-147a-423f-895b-de92ce180068" xlink:to="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:to="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_b7f9d5ee-5f24-4148-88f5-fa976ead3ef1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4ca005b7-7f9e-49cc-8b1c-316046ce205e" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4ca005b7-7f9e-49cc-8b1c-316046ce205e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_be7c7052-1ed7-412a-8a86-78ffb290635b" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_be7c7052-1ed7-412a-8a86-78ffb290635b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_1cb72656-4730-43f4-8585-0262c8c03faa" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_467a43eb-35d7-437f-bbcb-629b926fbedf" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_1cb72656-4730-43f4-8585-0262c8c03faa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_31d9a08c-e53d-4968-93e4-2c78bfc2c42b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_23291898-b97c-4e7b-9a1f-f3fd65479149" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_31d9a08c-e53d-4968-93e4-2c78bfc2c42b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_2a045478-c580-40fa-b266-466d7306bf32" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_31d9a08c-e53d-4968-93e4-2c78bfc2c42b" xlink:to="loc_us-gaap_SeniorNotesMember_2a045478-c580-40fa-b266-466d7306bf32" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_780ed2c4-5958-4941-ae1e-5beb6ec80d94" xlink:to="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_221eee2a-14d2-4da3-877f-a715e16daf14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_221eee2a-14d2-4da3-877f-a715e16daf14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_74e1bf70-c11a-45cc-92ac-51981fb86102" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_74e1bf70-c11a-45cc-92ac-51981fb86102" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_3449f604-1f25-483f-a549-f2c1d4e2a3ba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_531a26f7-7d9e-43a9-ae15-7800e38ab8a2" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_3449f604-1f25-483f-a549-f2c1d4e2a3ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/Revenues" xlink:type="simple" xlink:href="chgg-20210331.xsd#Revenues"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/Revenues" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_c7a0ab49-67ef-494a-8558-6e22d1cda9d5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_8488f1f0-7ccd-40b4-a1e1-311b91433e9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_c7a0ab49-67ef-494a-8558-6e22d1cda9d5" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_8488f1f0-7ccd-40b4-a1e1-311b91433e9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/RevenuesTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#RevenuesTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/RevenuesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_5fa05eca-c791-4241-8503-b4f9ac5753c6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_80fbf3b2-4e2c-461a-aa1f-6164fcec8966" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_5fa05eca-c791-4241-8503-b4f9ac5753c6" xlink:to="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_80fbf3b2-4e2c-461a-aa1f-6164fcec8966" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_c94aafc2-55fe-421d-ac3b-efc4532d79d0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_5fa05eca-c791-4241-8503-b4f9ac5753c6" xlink:to="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_c94aafc2-55fe-421d-ac3b-efc4532d79d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/RevenuesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#RevenuesDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/RevenuesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_1a1518f6-325b-4466-8005-0c63c3938b90" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_1a1518f6-325b-4466-8005-0c63c3938b90" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:to="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductOrServiceAxis_ff63b6c5-6a16-46a6-a162-d4544a5e40d0" xlink:to="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CheggServicesMember_abc4d916-dddd-4882-aebe-f0fbd4cc1497" xlink:href="chgg-20210331.xsd#chgg_CheggServicesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:to="loc_chgg_CheggServicesMember_abc4d916-dddd-4882-aebe-f0fbd4cc1497" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RequiredMaterialsMember_9ea51821-2553-403b-aa2e-d1515597074b" xlink:href="chgg-20210331.xsd#chgg_RequiredMaterialsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:to="loc_chgg_RequiredMaterialsMember_9ea51821-2553-403b-aa2e-d1515597074b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TextbookLibraryMember_68c6a1ed-bf8f-4275-a3a4-6ee6ff44b5a0" xlink:href="chgg-20210331.xsd#chgg_TextbookLibraryMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_53287116-7360-4a70-9854-686a35f1c735" xlink:to="loc_chgg_TextbookLibraryMember_68c6a1ed-bf8f-4275-a3a4-6ee6ff44b5a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c9b6a2cb-2078-4320-9802-2e17579a56fa" xlink:to="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_2a59f46e-7639-4d07-9ba6-c7bfa82c383c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_2a59f46e-7639-4d07-9ba6-c7bfa82c383c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_fcb609e6-c27f-4cf1-ac6c-6d256d084b7a" xlink:href="chgg-20210331.xsd#chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease_fcb609e6-c27f-4cf1-ac6c-6d256d084b7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_98898044-15d0-40aa-9bc4-16d9d06412c8" xlink:href="chgg-20210331.xsd#chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent_98898044-15d0-40aa-9bc4-16d9d06412c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_75accf79-8ae2-4fc9-af4f-bc77b59732b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_75accf79-8ae2-4fc9-af4f-bc77b59732b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLeaseIncome_3af402d7-5420-4d2b-a655-ceafeee23f98" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLeaseIncome"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_OperatingLeaseLeaseIncome_3af402d7-5420-4d2b-a655-ceafeee23f98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_b302beba-79d6-46d2-987d-b87a60352908" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_b302beba-79d6-46d2-987d-b87a60352908" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInAccountsReceivableNet_6f9ae80e-cf03-45b2-9a17-863d62bc42cf" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInAccountsReceivableNet"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseInAccountsReceivableNet_6f9ae80e-cf03-45b2-9a17-863d62bc42cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseinAccountsReceivablePercent_72baae7f-b0f3-4523-8586-2765d9251041" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseinAccountsReceivablePercent"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseinAccountsReceivablePercent_72baae7f-b0f3-4523-8586-2765d9251041" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_4810d618-ac0b-42e3-91eb-0b4cc38fcf80" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_4810d618-ac0b-42e3-91eb-0b4cc38fcf80" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_739b090f-2d57-4217-8966-232545ab4fcd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_739b090f-2d57-4217-8966-232545ab4fcd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_faa90cc0-158e-4030-96f8-9a94e115c37b" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent_faa90cc0-158e-4030-96f8-9a94e115c37b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_4da88fd6-2e56-48be-8439-7b191e0d6be6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_4da88fd6-2e56-48be-8439-7b191e0d6be6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInContractWithCustomerAssets_00900b0e-8795-463b-81e9-ccf68aeeb83a" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInContractWithCustomerAssets"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseInContractWithCustomerAssets_00900b0e-8795-463b-81e9-ccf68aeeb83a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_6bd36a70-2ae4-4550-9126-3a4c48cc64c6" xlink:href="chgg-20210331.xsd#chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_d6d511c0-074f-4a67-be3b-40364f6f21a4" xlink:to="loc_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent_6bd36a70-2ae4-4550-9126-3a4c48cc64c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShare" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShare"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/NetLossPerShare" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_934b82cd-6d66-4164-b331-063d19b94554" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_39fd936a-8a97-41c1-ac8c-39c50fd9212d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_934b82cd-6d66-4164-b331-063d19b94554" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_39fd936a-8a97-41c1-ac8c-39c50fd9212d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/NetLossPerShareTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_51059908-d013-4866-9d17-94a4fa15111f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_00691484-80d9-4c75-a64b-ec61c1f4ddc3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_51059908-d013-4866-9d17-94a4fa15111f" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_00691484-80d9-4c75-a64b-ec61c1f4ddc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_0ed5f37a-3ed8-4531-b571-9e4d3cd5668d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_51059908-d013-4866-9d17-94a4fa15111f" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_0ed5f37a-3ed8-4531-b571-9e4d3cd5668d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_b95e52d2-bb44-4219-a786-3a1caa004f96" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_b95e52d2-bb44-4219-a786-3a1caa004f96" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_d8256241-2c78-4106-9b88-07519b492112" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_21d3c51c-37ab-4b2d-b7ff-b4bc7e89b081" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_d8256241-2c78-4106-9b88-07519b492112" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionMember_af97ebf6-c435-4e80-a82e-f912e539c46a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_d8256241-2c78-4106-9b88-07519b492112" xlink:to="loc_us-gaap_StockOptionMember_af97ebf6-c435-4e80-a82e-f912e539c46a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_17b7485a-c266-4d6b-9fba-8376691ccb05" xlink:to="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAbstract_95f9a256-2066-4437-bd6e-5343f77a6393" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLossAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_NetIncomeLossAbstract_95f9a256-2066-4437-bd6e-5343f77a6393" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_635ac51a-832d-4c14-bdd7-584f51055aa9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAbstract_95f9a256-2066-4437-bd6e-5343f77a6393" xlink:to="loc_us-gaap_NetIncomeLoss_635ac51a-832d-4c14-bdd7-584f51055aa9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_8b35903c-73bf-4193-a7cc-bf16fa53a31d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_8b35903c-73bf-4193-a7cc-bf16fa53a31d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_ffe5ecc0-ba46-46fa-a1a8-c36a50f331b3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_8b35903c-73bf-4193-a7cc-bf16fa53a31d" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_ffe5ecc0-ba46-46fa-a1a8-c36a50f331b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_95d763ea-45bd-4b12-b4c3-7e9fc64e265b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_5f27dd0f-07af-4a6b-a015-dc965157847d" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_95d763ea-45bd-4b12-b4c3-7e9fc64e265b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_fd8a6847-0d8f-4bec-8a2c-dc342b2576bf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_fd8a6847-0d8f-4bec-8a2c-dc342b2576bf" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ef65517d-323c-4bc9-ae8f-0b4838f0238f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionMember_3f1ad0b3-8fa4-451a-99ad-183e9b65e2d3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockOptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_us-gaap_StockOptionMember_3f1ad0b3-8fa4-451a-99ad-183e9b65e2d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_58fa1960-229a-4f96-9e6c-299e451e9e7c" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_58fa1960-229a-4f96-9e6c-299e451e9e7c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_32be44dc-c272-458c-8c5d-4cc2cb1dbe9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_us-gaap_SeniorNotesMember_32be44dc-c272-458c-8c5d-4cc2cb1dbe9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_70dc3543-7c0a-44b4-aaf9-742f4d305591" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeStockMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_b3d3dbc7-a587-4223-80b7-32520be37ef0" xlink:to="loc_us-gaap_EmployeeStockMember_70dc3543-7c0a-44b4-aaf9-742f4d305591" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_231b0d0d-cafc-47d3-8253-db522f1271c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_11a7b2f6-2d02-4e1f-a70a-cd1de9f3c0cf" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_231b0d0d-cafc-47d3-8253-db522f1271c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_02b31c91-b48c-49fc-984d-86214e9ea598" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_231b0d0d-cafc-47d3-8253-db522f1271c9" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_02b31c91-b48c-49fc-984d-86214e9ea598" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestments" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestments"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestments" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_96368254-38fa-478c-bf5b-c97cc9fbe260" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock_5210f8eb-fe9b-4463-acaa-7823a6c08ac8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_96368254-38fa-478c-bf5b-c97cc9fbe260" xlink:to="loc_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock_5210f8eb-fe9b-4463-acaa-7823a6c08ac8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_5a412316-058a-462d-a17d-51df49d533d2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock_9eecb9d8-cc51-402e-be6d-e6893314260d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_5a412316-058a-462d-a17d-51df49d533d2" xlink:to="loc_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock_9eecb9d8-cc51-402e-be6d-e6893314260d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock_1ba03ae6-447a-49fe-b4c8-30f6a1017ecb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_5a412316-058a-462d-a17d-51df49d533d2" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock_1ba03ae6-447a-49fe-b4c8-30f6a1017ecb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_72439336-17b1-4ebe-b6ed-48c7f2336254" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_72439336-17b1-4ebe-b6ed-48c7f2336254" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_b375fe3d-4799-4340-9b3a-94c470d2dd14" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashMember_a7a0d433-87a6-4bf4-8146-3657e9890b0f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:to="loc_us-gaap_CashMember_a7a0d433-87a6-4bf4-8146-3657e9890b0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_e8216a10-9d03-4896-b373-394deeda388a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:to="loc_us-gaap_MoneyMarketFundsMember_e8216a10-9d03-4896-b373-394deeda388a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_cf8b3ac1-fb64-41fa-b916-5321af0af47b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_8fceb22e-d87c-4b03-87f5-bb842077c0c3" xlink:to="loc_us-gaap_CommercialPaperMember_cf8b3ac1-fb64-41fa-b916-5321af0af47b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_UnderlyingAssetClassDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnderlyingAssetClassAxis_d9e8104d-e68c-48e9-81d1-fa1fc04147d5" xlink:to="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_f0d6e843-06fa-4c0e-8d5a-21e189e1d837" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:to="loc_us-gaap_CommercialPaperMember_f0d6e843-06fa-4c0e-8d5a-21e189e1d837" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_309c0efb-9ae9-44c1-8cc6-611005da8632" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_309c0efb-9ae9-44c1-8cc6-611005da8632" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AgencySecuritiesMember_f2382617-6042-4dd7-8dbd-9fca057fac64" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AgencySecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_UnderlyingAssetClassDomain_71c1ca6d-f8cf-47dc-bb0d-48f1522dbe23" xlink:to="loc_us-gaap_AgencySecuritiesMember_f2382617-6042-4dd7-8dbd-9fca057fac64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeAxis_70cca0a0-4e5d-4928-ad5d-d9b7c1d8b5b5" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsMember_5c1cdd9b-c346-4003-9bd8-8b1a738a2eb1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:to="loc_us-gaap_CashAndCashEquivalentsMember_5c1cdd9b-c346-4003-9bd8-8b1a738a2eb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestmentsMember_15d338c2-4dc0-4561-b8f5-a3f5c62bf6a0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestmentsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:to="loc_us-gaap_ShortTermInvestmentsMember_15d338c2-4dc0-4561-b8f5-a3f5c62bf6a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestmentsMember_888a318b-78d3-4232-ba36-011b825c13eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OtherLongTermInvestmentsMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_55b4929a-7a57-4093-9e57-fbde5a6ccc26" xlink:to="loc_us-gaap_OtherLongTermInvestmentsMember_888a318b-78d3-4232-ba36-011b825c13eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0ba73356-5a06-44d6-95a0-2cd785eefcf5" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_82dbb1ef-af57-4e5a-934c-93efb1826897" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_82dbb1ef-af57-4e5a-934c-93efb1826897" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_18f0fbfb-88d6-4e30-a640-c3a186e1ef99" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_18f0fbfb-88d6-4e30-a640-c3a186e1ef99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_89e7edfe-2901-4714-82af-f9458aa48049" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_89e7edfe-2901-4714-82af-f9458aa48049" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_a1a98270-429a-4514-aa91-937244d60033" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_309c20a1-cc75-4db7-ba5e-1490c66ef5c2" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_a1a98270-429a-4514-aa91-937244d60033" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsContractualMaturityDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_d05839f0-6d9c-4452-8e61-bce869710c9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost_d05839f0-6d9c-4452-8e61-bce869710c9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_00b184fb-d76c-460b-99b6-55e44107e49e" xlink:href="chgg-20210331.xsd#chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis_00b184fb-d76c-460b-99b6-55e44107e49e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_31a49fc0-fab3-490c-8231-761e0a581e8a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_31a49fc0-fab3-490c-8231-761e0a581e8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7f8d00d6-4d6a-4ca2-8c1d-2289a627e795" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7f8d00d6-4d6a-4ca2-8c1d-2289a627e795" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_d200b1d3-6c96-4d56-ba92-4948d621168f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_d200b1d3-6c96-4d56-ba92-4948d621168f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_b17a6f02-e6ef-4275-98cc-147796c1c912" xlink:href="chgg-20210331.xsd#chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue_b17a6f02-e6ef-4275-98cc-147796c1c912" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_a9991b8c-e217-4507-b775-7decfcd2055b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_a9991b8c-e217-4507-b775-7decfcd2055b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_79f9b43a-4320-43db-8673-1df61413ab12" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_79f9b43a-4320-43db-8673-1df61413ab12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity_c0c6be2e-bc94-4d85-ae3f-dfd305e334b8" xlink:href="chgg-20210331.xsd#chgg_AvailableForSaleSecuritiesWeightedAverageMaturity"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_f4dc8539-5b1e-4cbf-b9b5-0486c09fa9f7" xlink:to="loc_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity_c0c6be2e-bc94-4d85-ae3f-dfd305e334b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAbstract_4723a54d-2208-43a0-9c0f-607fee8ef1f9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashAndCashEquivalentsAbstract_4723a54d-2208-43a0-9c0f-607fee8ef1f9" xlink:to="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_846d67b7-f40e-47c3-a978-ccf647f5933f" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TAPDInc.Member_01aef14a-ac22-4baf-9d46-f62ea7b7505e" xlink:href="chgg-20210331.xsd#chgg_TAPDInc.Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:to="loc_chgg_TAPDInc.Member_01aef14a-ac22-4baf-9d46-f62ea7b7505e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ForeignEntityMember_c1dc5b4c-610e-4ee6-898a-665d745d43ca" xlink:href="chgg-20210331.xsd#chgg_ForeignEntityMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_3eb30922-334e-48b1-9700-3b02897386ab" xlink:to="loc_chgg_ForeignEntityMember_c1dc5b4c-610e-4ee6-898a-665d745d43ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_86f6487f-d205-44a4-839d-56e9c6db7ab2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_6ea9deba-0594-4e75-9d3e-437700558c62" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_86f6487f-d205-44a4-839d-56e9c6db7ab2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ForeignEntityMember_9ebd1134-5ea2-4298-ab42-d34845726eb9" xlink:href="chgg-20210331.xsd#chgg_ForeignEntityMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_86f6487f-d205-44a4-839d-56e9c6db7ab2" xlink:to="loc_chgg_ForeignEntityMember_9ebd1134-5ea2-4298-ab42-d34845726eb9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfInvestmentsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsTable_f0cc1d16-d5b2-427f-b2ea-2fbc5f357a6b" xlink:to="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_f5290f24-6d15-4b9b-86ed-84a1b512d6ba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_f5290f24-6d15-4b9b-86ed-84a1b512d6ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentSoldCarryingAmount_565ed33b-8628-4551-ac7f-b81a4e54b55a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentSoldCarryingAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_EquityMethodInvestmentSoldCarryingAmount_565ed33b-8628-4551-ac7f-b81a4e54b55a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_fb4421bb-16a0-443e-973f-08878e1c6f86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal_fb4421bb-16a0-443e-973f-08878e1c6f86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_6aa2f623-453a-48be-bafc-98ec98721be6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromSaleOfEquityMethodInvestments"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfInvestmentsLineItems_a26b1807-b0ed-444a-9e62-51651ff74a1f" xlink:to="loc_us-gaap_ProceedsFromSaleOfEquityMethodInvestments_6aa2f623-453a-48be-bafc-98ec98721be6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurement" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurement"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/FairValueMeasurement" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_de265b80-2dab-4bca-a4ad-c2ddae55e401" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_151a973b-e1d0-4206-ab9c-467ab6d2e382" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_de265b80-2dab-4bca-a4ad-c2ddae55e401" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_151a973b-e1d0-4206-ab9c-467ab6d2e382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/FairValueMeasurementTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_a3798720-935d-460f-a2ea-eea96e86eaa6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_31a2261d-92f9-48ff-b90d-cff6fae5eea8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_a3798720-935d-460f-a2ea-eea96e86eaa6" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_31a2261d-92f9-48ff-b90d-cff6fae5eea8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_b3f5bdbd-509f-4d79-9fda-4f2f640df448" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_a3798720-935d-460f-a2ea-eea96e86eaa6" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_b3f5bdbd-509f-4d79-9fda-4f2f640df448" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementFinancialInstrumentsDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_e7b9bf25-c03c-41ac-99d5-37a17bb61cda" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_e7b9bf25-c03c-41ac-99d5-37a17bb61cda" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_2822f836-16f5-47e3-aa22-ef5a4261a7aa" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_6571b725-0feb-4920-9e41-51d5d9994020" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:to="loc_us-gaap_MoneyMarketFundsMember_6571b725-0feb-4920-9e41-51d5d9994020" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_a78a3186-b238-4843-8ec0-b4a59e1402c2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0b8c6109-1c78-4281-b133-5c215633b6e9" xlink:to="loc_us-gaap_CommercialPaperMember_a78a3186-b238-4843-8ec0-b4a59e1402c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeAxis_fbf5195d-e830-4234-8c73-72547bb9ba1b" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_72faa1cf-57b8-4e2e-aa6c-2050953774b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommercialPaperMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:to="loc_us-gaap_CommercialPaperMember_72faa1cf-57b8-4e2e-aa6c-2050953774b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_efe6864f-fdf6-4a8d-a187-82c06385f557" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CorporateBondSecuritiesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:to="loc_us-gaap_CorporateBondSecuritiesMember_efe6864f-fdf6-4a8d-a187-82c06385f557" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AgencySecuritiesMember_e784af80-5813-46a6-8055-aad98468ab0f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AgencySecuritiesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_a4b50d9d-4c51-453a-b983-21e4b6f5cec4" xlink:to="loc_us-gaap_AgencySecuritiesMember_e784af80-5813-46a6-8055-aad98468ab0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_f528e95a-8ad9-40c9-bac6-b222d557801c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_6d348b30-172d-4696-9d65-27b539234366" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_f528e95a-8ad9-40c9-bac6-b222d557801c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_eb94a39c-cded-40c5-b29e-2f19e53f3102" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_f528e95a-8ad9-40c9-bac6-b222d557801c" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_eb94a39c-cded-40c5-b29e-2f19e53f3102" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_b62e7117-8477-42aa-910a-782e6bc3d315" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_8dabdcd4-d055-4dcc-875a-d891c2a7fd1e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_8dabdcd4-d055-4dcc-875a-d891c2a7fd1e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_6ee60877-69c8-495e-872c-ef66ed757000" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_021de506-a126-4512-b6bb-0d006f60ef14" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_6ee60877-69c8-495e-872c-ef66ed757000" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_e47d0282-d075-44e1-a32f-c70cdcfcf3f0" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4fe52675-12c9-4560-9846-1812dbfaefe9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_4fe52675-12c9-4560-9846-1812dbfaefe9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_b35bf1aa-def7-40ce-a713-c99c95bf27d5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShortTermInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_ShortTermInvestments_b35bf1aa-def7-40ce-a713-c99c95bf27d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_7049c55c-947d-48d6-8334-8020ff0b430f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_LongTermInvestments_7049c55c-947d-48d6-8334-8020ff0b430f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_a466b675-67aa-47f6-b074-129d36a08991" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3c3c472c-840b-4a17-b2ed-3672dc59eed9" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_a466b675-67aa-47f6-b074-129d36a08991" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/FairValueMeasurementDebtDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#FairValueMeasurementDebtDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/FairValueMeasurementDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_ff9bad65-e512-4a70-8ad0-a5aaac520ec3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_ff9bad65-e512-4a70-8ad0-a5aaac520ec3" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_1a69f68d-8485-414f-937f-1ad64cf49fd6" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4b92691f-f91c-4cb9-a9a3-4474419a4e84" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_4b92691f-f91c-4cb9-a9a3-4474419a4e84" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_ce5f3241-9907-4dcf-a5b3-b4570053491c" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_ce5f3241-9907-4dcf-a5b3-b4570053491c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_d84da317-5eee-43fb-987c-20e3189d7f96" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_205009c9-3685-4495-87ee-980218c891da" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_d84da317-5eee-43fb-987c-20e3189d7f96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_bf0c4017-f2df-4328-94c4-b03d1bcf6496" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_ced2274a-743b-42c3-839f-a6b57204500a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_ced2274a-743b-42c3-839f-a6b57204500a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e6f10234-7bde-4b46-b52f-cb38a203d88d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e6f10234-7bde-4b46-b52f-cb38a203d88d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_711f237b-d880-4004-883b-3f7380433c93" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_93c724e2-bc9d-4fb4-b2b7-2f0abb08e99b" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_711f237b-d880-4004-883b-3f7380433c93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_37c467a7-d50f-404f-8794-e513a51b8bbd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_3f16e8df-a68c-410e-98e0-cd0d17c5f8f5" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_37c467a7-d50f-404f-8794-e513a51b8bbd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_0c574f28-429c-43f2-a3e2-36baea867863" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_37c467a7-d50f-404f-8794-e513a51b8bbd" xlink:to="loc_us-gaap_SeniorNotesMember_0c574f28-429c-43f2-a3e2-36baea867863" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_c85b7299-cf0c-4182-815e-62bd2177cd5c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b986a32c-64f1-4de7-9145-554150870832" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_c85b7299-cf0c-4182-815e-62bd2177cd5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_ca595b67-fb02-4f73-a244-b1c0b6fd82c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_c85b7299-cf0c-4182-815e-62bd2177cd5c" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_ca595b67-fb02-4f73-a244-b1c0b6fd82c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_280b03ee-24f3-4e14-804e-ed4d2ef890b5" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_05f7c874-6d6a-4898-8d73-aad0f2ecbc76" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_LongTermDebtFairValue_05f7c874-6d6a-4898-8d73-aad0f2ecbc76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_ecbc3b8c-48b7-426a-b5a2-d09c3acb4304" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_ecbc3b8c-48b7-426a-b5a2-d09c3acb4304" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_94bcc23c-298a-4e67-b81c-bd0a681ed2b6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_d781f2af-b705-45c4-aefb-20ed80f1ba60" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_94bcc23c-298a-4e67-b81c-bd0a681ed2b6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/Acquisitions" xlink:type="simple" xlink:href="chgg-20210331.xsd#Acquisitions"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/Acquisitions" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_08dc24a0-d71a-4ad1-8169-c54a80a25228" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_a35a9e53-cf3d-49c8-823c-1d248bdf4b56" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_08dc24a0-d71a-4ad1-8169-c54a80a25228" xlink:to="loc_us-gaap_BusinessCombinationDisclosureTextBlock_a35a9e53-cf3d-49c8-823c-1d248bdf4b56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/AcquisitionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#AcquisitionsDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/AcquisitionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_e1c88ff4-3797-41a4-90d8-ea1b29902dbe" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_e1c88ff4-3797-41a4-90d8-ea1b29902dbe" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0df45f59-ab49-4e77-b78c-354336bfcaac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6d085962-7d34-45ea-96b8-218685c4f5d1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0df45f59-ab49-4e77-b78c-354336bfcaac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TechnologyCompanyMember_35dc2f2a-8493-4fe5-888f-4538a44bc344" xlink:href="chgg-20210331.xsd#chgg_TechnologyCompanyMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0df45f59-ab49-4e77-b78c-354336bfcaac" xlink:to="loc_chgg_TechnologyCompanyMember_35dc2f2a-8493-4fe5-888f-4538a44bc344" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5fda91ee-9de1-4459-b8c4-02a66c4587b0" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_BusinessCombinationPercentOwnershipAcquired_ddb49b61-8bd9-4dd7-9cee-02245bae0e50" xlink:href="chgg-20210331.xsd#chgg_BusinessCombinationPercentOwnershipAcquired"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_chgg_BusinessCombinationPercentOwnershipAcquired_ddb49b61-8bd9-4dd7-9cee-02245bae0e50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_32f81243-eb29-433b-a275-b474d4266244" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_32f81243-eb29-433b-a275-b474d4266244" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_8b313045-50e2-4c3c-b247-fea0b29b7b93" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_8b313045-50e2-4c3c-b247-fea0b29b7b93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_8d9df079-9561-407d-988d-56f077621462" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_8d9df079-9561-407d-988d-56f077621462" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_a5cdd405-dd2d-42e0-a9a4-5f7e8bc852b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_Goodwill_a5cdd405-dd2d-42e0-a9a4-5f7e8bc852b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_5a289e04-9ce7-4fe9-9590-a76e6401f3c3" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5a024f6b-bef7-4db9-841f-13eaac25f149" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_5a289e04-9ce7-4fe9-9590-a76e6401f3c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotes" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotes"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotes" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_e8b3c849-4efa-461c-83fb-a051559407e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_2e710eaf-4698-4b36-9f41-f5395eedf570" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_e8b3c849-4efa-461c-83fb-a051559407e4" xlink:to="loc_us-gaap_DebtDisclosureTextBlock_2e710eaf-4698-4b36-9f41-f5395eedf570" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_9f5d04aa-30ba-419f-8cb3-e0a1711d8f0e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_3acc4637-6edb-48aa-94b1-4e77c698d38c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_9f5d04aa-30ba-419f-8cb3-e0a1711d8f0e" xlink:to="loc_us-gaap_ScheduleOfDebtInstrumentsTextBlock_3acc4637-6edb-48aa-94b1-4e77c698d38c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_08ff88fa-e554-47c6-8c77-a43db1bd0ac2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_9f5d04aa-30ba-419f-8cb3-e0a1711d8f0e" xlink:to="loc_us-gaap_ScheduleOfDebtTableTextBlock_08ff88fa-e554-47c6-8c77-a43db1bd0ac2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock_1192c427-16e3-4578-8ba2-c5d7cbd57a31" xlink:href="chgg-20210331.xsd#chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_9f5d04aa-30ba-419f-8cb3-e0a1711d8f0e" xlink:to="loc_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock_1192c427-16e3-4578-8ba2-c5d7cbd57a31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_e2b3b89a-f249-4e47-b6af-3bb5d53f29ff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_e2b3b89a-f249-4e47-b6af-3bb5d53f29ff" xlink:to="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_aa233bc4-0848-4610-8ec4-a1d2fcaa0e14" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_13071a7a-09b4-40d4-b87c-4ec852afe925" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_aa233bc4-0848-4610-8ec4-a1d2fcaa0e14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_08567bc0-3577-4661-8a8d-3e320b6fa02d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_aa233bc4-0848-4610-8ec4-a1d2fcaa0e14" xlink:to="loc_us-gaap_SeniorNotesMember_08567bc0-3577-4661-8a8d-3e320b6fa02d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_6cb5c71b-6b0a-4ae1-b3e9-43fd818aa7a8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_ef1c05b0-a962-494c-b3f4-d706aa2a632e" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_ef1c05b0-a962-494c-b3f4-d706aa2a632e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_99833029-5c82-471f-9a90-856e44e27fe6" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember_99833029-5c82-471f-9a90-856e44e27fe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_3acc2ca5-c629-4cf9-a28b-45cae1527c84" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_3acc2ca5-c629-4cf9-a28b-45cae1527c84" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fc0f60d-5d3e-4c59-9ffa-8bb047e0082a" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bce3811f-d91f-4220-9318-8fdcae5dd36b" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fc0f60d-5d3e-4c59-9ffa-8bb047e0082a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtInstrumentTransactionAxis_79774cad-a099-4fc4-84f5-0647cffef86a" xlink:to="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CappedCallMember_f9a12331-774b-49a8-8493-f89d781ada4e" xlink:href="chgg-20210331.xsd#chgg_CappedCallMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:to="loc_chgg_CappedCallMember_f9a12331-774b-49a8-8493-f89d781ada4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ExchangeOfAggregatePrincipalAmountMember_c21a89ca-5d36-4049-96a8-f5b2248d921d" xlink:href="chgg-20210331.xsd#chgg_ExchangeOfAggregatePrincipalAmountMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtInstrumentTransactionDomain_0c6a876c-9c62-473d-80b9-96c058570a02" xlink:to="loc_chgg_ExchangeOfAggregatePrincipalAmountMember_c21a89ca-5d36-4049-96a8-f5b2248d921d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:href="chgg-20210331.xsd#chgg_DebtCovenantTermsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtCovenantTermsAxis_b8922750-dd4b-4363-be3f-291eed825c1c" xlink:to="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SalePriceIsGreaterOrEqual130PercentMember_7a1b00b0-eabe-40c7-8012-19ad7345a7de" xlink:href="chgg-20210331.xsd#chgg_SalePriceIsGreaterOrEqual130PercentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:to="loc_chgg_SalePriceIsGreaterOrEqual130PercentMember_7a1b00b0-eabe-40c7-8012-19ad7345a7de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_29a5cdd4-6824-4fd8-860e-fe604cf8a961" xlink:href="chgg-20210331.xsd#chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtCovenantTermsDomain_272687f3-b309-49c7-a934-63e38640ef01" xlink:to="loc_chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember_29a5cdd4-6824-4fd8-860e-fe604cf8a961" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d9844022-277c-4bb7-a00b-9e9b98678eac" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_78b7825e-5003-4587-9b25-30d39fa1271e" xlink:to="loc_srt_RangeMember_d9844022-277c-4bb7-a00b-9e9b98678eac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_33acca1b-25d4-40cc-959c-47236521ade1" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_d9844022-277c-4bb7-a00b-9e9b98678eac" xlink:to="loc_srt_MaximumMember_33acca1b-25d4-40cc-959c-47236521ade1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_fecae1bb-1a4e-4ef3-ae3f-4bafc43e59a7" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_b8675cf5-1145-45ae-824c-e4e28be33522" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_b8675cf5-1145-45ae-824c-e4e28be33522" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_d56c118a-41a4-46b8-a655-0a5dfba86151" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_0414fc79-d50b-4882-9a13-a820da0e9fc1" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_d56c118a-41a4-46b8-a655-0a5dfba86151" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_5f731e91-5ada-40d5-bd99-50c0f5b922ab" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_570271cf-0523-4ca2-9c54-453d71f67712" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_5f731e91-5ada-40d5-bd99-50c0f5b922ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_e5992959-f26f-4958-b518-7f09d39538b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsequentEventMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_5f731e91-5ada-40d5-bd99-50c0f5b922ab" xlink:to="loc_us-gaap_SubsequentEventMember_e5992959-f26f-4958-b518-7f09d39538b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_234450e9-d5f2-4e4c-9666-e90b8c8302be" xlink:to="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_8bb60fb6-9189-4599-91af-67cf9f50442c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_8bb60fb6-9189-4599-91af-67cf9f50442c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8fc29b82-9b5a-4856-8449-75189a5943f9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_8fc29b82-9b5a-4856-8449-75189a5943f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_a8c2d1ac-23bc-4252-91df-5f5740900709" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes_a8c2d1ac-23bc-4252-91df-5f5740900709" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_390bd1a4-8d24-4135-9c64-1b3b86576931" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_390bd1a4-8d24-4135-9c64-1b3b86576931" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentsForInitialPurchasersDiscount_99f3848f-f749-4a08-96b6-6602e562f240" xlink:href="chgg-20210331.xsd#chgg_PaymentsForInitialPurchasersDiscount"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_PaymentsForInitialPurchasersDiscount_99f3848f-f749-4a08-96b6-6602e562f240" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_8f51a649-35db-426e-bcb8-5480abc97334" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_8f51a649-35db-426e-bcb8-5480abc97334" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_0f07882f-5b79-4988-a084-f6fd4595888a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_0f07882f-5b79-4988-a084-f6fd4595888a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_8a61f9f9-a232-4f4a-9cf5-6afb174ecd86" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_8a61f9f9-a232-4f4a-9cf5-6afb174ecd86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt_2c60d2ae-edf2-4266-bcf5-342e7b77ad05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt_2c60d2ae-edf2-4266-bcf5-342e7b77ad05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_85d578a2-6df1-4a09-9c74-64567faa5397" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativeLiabilities"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DerivativeLiabilities_85d578a2-6df1-4a09-9c74-64567faa5397" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfDerivatives_9d84e9d1-b640-4967-b6e0-743c6e289b20" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainLossOnSaleOfDerivatives"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_GainLossOnSaleOfDerivatives_9d84e9d1-b640-4967-b6e0-743c6e289b20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_617d665d-fb19-427f-abf4-a0e1748917ec" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_LongTermDebt_617d665d-fb19-427f-abf4-a0e1748917ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_956a5728-3fac-4e0d-a001-209feee0de4e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_956a5728-3fac-4e0d-a001-209feee0de4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConvertibleSharesTerminated_32cb5cbe-9ebe-4885-bc32-4931ee358f56" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConvertibleSharesTerminated"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentConvertibleSharesTerminated_32cb5cbe-9ebe-4885-bc32-4931ee358f56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_1a02e71f-99ba-45ea-a682-a07a67e4b3c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_1a02e71f-99ba-45ea-a682-a07a67e4b3c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_c8d25aac-edc4-49da-97c1-34fae1429b5f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_c8d25aac-edc4-49da-97c1-34fae1429b5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_778a01e9-dac4-403d-9635-3c6195f2dfdb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_778a01e9-dac4-403d-9635-3c6195f2dfdb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_1bbf5676-a4f9-4417-b0fa-568043e2f58b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_1bbf5676-a4f9-4417-b0fa-568043e2f58b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_b2b2faf3-6d47-4dbb-a9cc-73d1f3e471e0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_b2b2faf3-6d47-4dbb-a9cc-73d1f3e471e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_cab1251f-91cb-4cb9-9032-4426590516a7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_cab1251f-91cb-4cb9-9032-4426590516a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionOriginalDebtAmount1_6b541c0c-899a-4833-8f02-995f7395bdea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtConversionOriginalDebtAmount1"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtConversionOriginalDebtAmount1_6b541c0c-899a-4833-8f02-995f7395bdea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionConsideration_5617f98c-ac8d-470a-b4f5-9a609dd46222" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionConsideration"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentDebtConversionConsideration_5617f98c-ac8d-470a-b4f5-9a609dd46222" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_9da154f1-1a76-4729-8606-a54e3f767e0d" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued_9da154f1-1a76-4729-8606-a54e3f767e0d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_4e1dfea1-5f98-4276-b4ad-c0b70bdb8134" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount_4e1dfea1-5f98-4276-b4ad-c0b70bdb8134" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ProceedsFromCappedCall_1bd2918b-c018-4e6f-ad1c-c2880a3b528b" xlink:href="chgg-20210331.xsd#chgg_ProceedsFromCappedCall"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_ProceedsFromCappedCall_1bd2918b-c018-4e6f-ad1c-c2880a3b528b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_06367792-9859-4034-b840-736ba1bf4aa0" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred_06367792-9859-4034-b840-736ba1bf4aa0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_de905e04-f62c-4d26-bc3c-3137f1293803" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_de905e04-f62c-4d26-bc3c-3137f1293803" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_e92e760e-b43b-48d0-a947-62bb26c1c98e" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e9bd0d46-ba31-4388-83ae-dc5c2ee4437e" xlink:to="loc_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable_e92e760e-b43b-48d0-a947-62bb26c1c98e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesNetCarryingAmountDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_aa155696-6c33-4e33-98e9-513ba21d8622" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_aa155696-6c33-4e33-98e9-513ba21d8622" xlink:to="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_c4e8da9b-c938-4af0-aa1a-93cbd6744a1c" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_bef69e5f-0642-40f8-ba18-243f8d0b357a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_bef69e5f-0642-40f8-ba18-243f8d0b357a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_30a14ef3-01ac-491e-a553-51ec7e7e47b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_e079fb42-5622-41a3-8c89-112a4783c487" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_30a14ef3-01ac-491e-a553-51ec7e7e47b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_60f79f31-909c-45ec-b092-415530f9d294" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_b8607c5d-4d3e-4647-9dc9-9dfdda454f44" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_60f79f31-909c-45ec-b092-415530f9d294" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_fad2f90a-4914-4a03-b2d6-ccc123e6e97e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_60f79f31-909c-45ec-b092-415530f9d294" xlink:to="loc_us-gaap_FairValueMeasurementsNonrecurringMember_fad2f90a-4914-4a03-b2d6-ccc123e6e97e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_12b79569-a204-4347-a57b-2d2cf710bd1d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f19e7bcb-760d-458c-b6f3-0774fb765127" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_12b79569-a204-4347-a57b-2d2cf710bd1d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_bf4b6c26-2246-4ce0-8a98-5c6dbd487820" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_12b79569-a204-4347-a57b-2d2cf710bd1d" xlink:to="loc_us-gaap_SeniorNotesMember_bf4b6c26-2246-4ce0-8a98-5c6dbd487820" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_3806d0ad-9f58-4d9c-ad51-3af65e57d0ce" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_5b0e1d35-bfbd-46b5-8de5-aa8e3cefaeda" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_5b0e1d35-bfbd-46b5-8de5-aa8e3cefaeda" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_20360505-0383-4e2e-a8cf-939e3c5d1d12" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_20360505-0383-4e2e-a8cf-939e3c5d1d12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fd721cd-1d00-4d09-94ec-48a8dff73959" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3e1af1f7-1e02-4b81-af49-2fef25cce8d8" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_3fd721cd-1d00-4d09-94ec-48a8dff73959" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_b2d8650d-7124-4342-892c-ed8950ce2fd1" xlink:to="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_ee99e1b7-3b38-4c83-a4c6-55e037c51aa8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_ee99e1b7-3b38-4c83-a4c6-55e037c51aa8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_4f91c373-4001-4abb-89fb-41e35b758641" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_4f91c373-4001-4abb-89fb-41e35b758641" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_64799c02-6c3c-45a3-81ad-7671640168ba" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_64799c02-6c3c-45a3-81ad-7671640168ba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_f1d3c70a-b3b6-4b62-aedc-935183e45357" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_06a5d9f8-3990-4084-8358-79c323d067c7" xlink:to="loc_us-gaap_LongTermDebtFairValue_f1d3c70a-b3b6-4b62-aedc-935183e45357" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesInterestExpenseRecognizedDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_893b41b1-812c-4757-82b6-4614f9b41f92" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_893b41b1-812c-4757-82b6-4614f9b41f92" xlink:to="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_affb0771-54e5-4347-a44c-bd52c67756cd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_770d121b-c45e-4b83-bdba-eb8fec64d930" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_affb0771-54e5-4347-a44c-bd52c67756cd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_1c34d9ad-592b-4855-95b2-1a4dfe51b32e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_affb0771-54e5-4347-a44c-bd52c67756cd" xlink:to="loc_us-gaap_SeniorNotesMember_1c34d9ad-592b-4855-95b2-1a4dfe51b32e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:to="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_2cdd7126-02e4-46d8-bc18-5ec411dff239" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_dda55a64-2de4-4643-b6c1-adfa02132139" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_dda55a64-2de4-4643-b6c1-adfa02132139" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_cb5a3ffc-ea15-417e-8607-46c96d6bd97a" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_cb5a3ffc-ea15-417e-8607-46c96d6bd97a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0b69a5bd-3253-4d7a-89c8-3722a4b4041b" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f2497040-f53a-4943-b60e-023dfc9148de" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0b69a5bd-3253-4d7a-89c8-3722a4b4041b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_dc5f6c38-e2ba-4aa2-807e-c1a591cf3b2e" xlink:to="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_a1249083-f542-4b8f-9c6a-0c562605ed6c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_a1249083-f542-4b8f-9c6a-0c562605ed6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_4a553ed7-19ca-4343-87b4-602c93547734" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium_4a553ed7-19ca-4343-87b4-602c93547734" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_928af5bc-ee9e-497a-92d8-57915220872c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_928af5bc-ee9e-497a-92d8-57915220872c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_e434418d-172e-49af-bbde-f0fb297632ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_InterestExpenseDebt"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_bb05a857-bf2f-4993-b759-849e33f08790" xlink:to="loc_us-gaap_InterestExpenseDebt_e434418d-172e-49af-bbde-f0fb297632ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#ConvertibleSeniorNotesCappedCallDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_8bb86851-f036-4bff-9168-4ede12078e1f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_8bb86851-f036-4bff-9168-4ede12078e1f" xlink:to="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentTransactionDomain_49f3cd3d-6194-4b17-9ede-1fd46cc349de" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtInstrumentTransactionAxis_a4e445b9-af14-4ed9-b7e4-d938af36a2c8" xlink:to="loc_chgg_DebtInstrumentTransactionDomain_49f3cd3d-6194-4b17-9ede-1fd46cc349de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_CappedCallMember_39196b74-7829-42d5-8713-604d3d60e9de" xlink:href="chgg-20210331.xsd#chgg_CappedCallMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_DebtInstrumentTransactionDomain_49f3cd3d-6194-4b17-9ede-1fd46cc349de" xlink:to="loc_chgg_CappedCallMember_39196b74-7829-42d5-8713-604d3d60e9de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_08f71dd6-39ef-4dd7-91fd-30d242d25463" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_682de25c-db4a-4f12-8ad7-7ae670888115" xlink:href="chgg-20210331.xsd#chgg_A0ConvertibleSeniorNotesDue2026Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:to="loc_chgg_A0ConvertibleSeniorNotesDue2026Member_682de25c-db4a-4f12-8ad7-7ae670888115" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_fcdd1e71-7039-479b-81f1-419c246c1998" xlink:href="chgg-20210331.xsd#chgg_A0.125PercentConvertibleSeniorNotesDue2025Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:to="loc_chgg_A0.125PercentConvertibleSeniorNotesDue2025Member_fcdd1e71-7039-479b-81f1-419c246c1998" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0d455e0a-1c4d-430c-9b0a-8460ae04de2d" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e3d486c7-b1c9-4a96-8c38-af674ed789ff" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_0d455e0a-1c4d-430c-9b0a-8460ae04de2d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_36626fb0-2255-4d35-acbc-6c55f882d67d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_af09d1b6-3264-401c-b3d6-8568de4363de" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_36626fb0-2255-4d35-acbc-6c55f882d67d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_6104dd2b-7397-4e68-8f66-8144ea26e811" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_36626fb0-2255-4d35-acbc-6c55f882d67d" xlink:to="loc_us-gaap_SeniorNotesMember_6104dd2b-7397-4e68-8f66-8144ea26e811" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_c5284e77-6ba3-4947-a702-5bed83499a16" xlink:to="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_5c3d5f40-168d-4820-bbc8-0cd9ab6668ca" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_us-gaap_ProceedsFromDebtNetOfIssuanceCosts_5c3d5f40-168d-4820-bbc8-0cd9ab6668ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_DebtInstrumentConvertibleShares_88c6efe8-7613-4b17-b586-e6f33fd80182" xlink:href="chgg-20210331.xsd#chgg_DebtInstrumentConvertibleShares"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_chgg_DebtInstrumentConvertibleShares_88c6efe8-7613-4b17-b586-e6f33fd80182" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_76cdff76-8436-4762-96ac-119ddd53f21d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f1309e36-bb0d-41ad-98f2-112ca64eaa0a" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_76cdff76-8436-4762-96ac-119ddd53f21d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="chgg-20210331.xsd#CommitmentsandContingencies"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CommitmentsandContingencies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_49cb7b95-fba4-448c-84df-944e5786d211" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_e897fa70-f184-4f73-bd0f-8cb8eca05e25" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_49cb7b95-fba4-448c-84df-944e5786d211" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_e897fa70-f184-4f73-bd0f-8cb8eca05e25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#CommitmentsandContingenciesDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/CommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_b78e85a0-fd33-4cc0-b7fe-a7cfaff70885" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingenciesTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_b78e85a0-fd33-4cc0-b7fe-a7cfaff70885" xlink:to="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:to="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_LitigationCaseTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_LitigationCaseAxis_4e3e3949-2e78-4101-8109-fa9b573aeedc" xlink:to="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A2018DataIncidentArbitrationDemandsMember_415ef658-d1e0-423a-9644-ad547672eb27" xlink:href="chgg-20210331.xsd#chgg_A2018DataIncidentArbitrationDemandsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:to="loc_chgg_A2018DataIncidentArbitrationDemandsMember_415ef658-d1e0-423a-9644-ad547672eb27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_65bacc24-66ed-434b-9a95-c64f00447bad" xlink:href="chgg-20210331.xsd#chgg_VitalSourceTechnologiesLLCVSTVsCheggMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_LitigationCaseTypeDomain_a3aea5fc-ec9f-4106-a50b-3539f95fb34b" xlink:to="loc_chgg_VitalSourceTechnologiesLLCVSTVsCheggMember_65bacc24-66ed-434b-9a95-c64f00447bad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:to="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationStatusDomain_c09877ef-57fd-4fa6-9215-26aa9219091c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LitigationStatusDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LitigationStatusAxis_dacd6183-8018-4066-9cf9-a28f321f7b3d" xlink:to="loc_us-gaap_LitigationStatusDomain_c09877ef-57fd-4fa6-9215-26aa9219091c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PendingLitigationMember_46327577-9fad-4ce6-9031-e395bf02cc44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PendingLitigationMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LitigationStatusDomain_c09877ef-57fd-4fa6-9215-26aa9219091c" xlink:to="loc_us-gaap_PendingLitigationMember_46327577-9fad-4ce6-9031-e395bf02cc44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesTable_0c5c522d-713a-41b0-b80e-f15f666837f8" xlink:to="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_1da246b7-0a20-450a-b94a-49dbe15b1687" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_1da246b7-0a20-450a-b94a-49dbe15b1687" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber_ca91c3d7-4293-4d9e-84f3-d77cc066673b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyNewClaimsFiledNumber"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingencyNewClaimsFiledNumber_ca91c3d7-4293-4d9e-84f3-d77cc066673b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyDamagesSoughtValue_dc1e15f7-d9c8-4dc0-b1d8-874cae0110a6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LossContingencyDamagesSoughtValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingenciesLineItems_48d97c5a-9baf-4452-b925-05c218e5cb8a" xlink:to="loc_us-gaap_LossContingencyDamagesSoughtValue_dc1e15f7-d9c8-4dc0-b1d8-874cae0110a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/GuaranteesandIndemnifications" xlink:type="simple" xlink:href="chgg-20210331.xsd#GuaranteesandIndemnifications"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/GuaranteesandIndemnifications" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_chgg_GuaranteesAndIndemnificationsAbstract_608e5fb2-7683-4e37-8267-6f7593f558e1" xlink:href="chgg-20210331.xsd#chgg_GuaranteesAndIndemnificationsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_GuaranteesAndIndemnificationsTextBlock_ad0b4641-3ae4-4af5-a7b6-6ef4d8803e99" xlink:href="chgg-20210331.xsd#chgg_GuaranteesAndIndemnificationsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_chgg_GuaranteesAndIndemnificationsAbstract_608e5fb2-7683-4e37-8267-6f7593f558e1" xlink:to="loc_chgg_GuaranteesAndIndemnificationsTextBlock_ad0b4641-3ae4-4af5-a7b6-6ef4d8803e99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_c27e694a-e94f-4041-8682-5d89ba6e8df8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_f44f943f-9baa-49cb-8d44-940b78da0b57" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_c27e694a-e94f-4041-8682-5d89ba6e8df8" xlink:to="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_f44f943f-9baa-49cb-8d44-940b78da0b57" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityTables" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityTables"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquityTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_f69de820-ca7e-4765-b876-5f663c91ade9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_ec911dff-9cea-4c36-9ab3-94d6e0ddd0cc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_f69de820-ca7e-4765-b876-5f663c91ade9" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_ec911dff-9cea-4c36-9ab3-94d6e0ddd0cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_3b7212b2-b95d-40f9-8051-09bc47caff43" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_f69de820-ca7e-4765-b876-5f663c91ade9" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock_3b7212b2-b95d-40f9-8051-09bc47caff43" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_26bed8a1-71b1-4496-bd9a-0b8f3829b0b1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_f69de820-ca7e-4765-b876-5f663c91ade9" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_26bed8a1-71b1-4496-bd9a-0b8f3829b0b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityEquityOfferingDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_027af6ed-0ed5-456d-ab18-0195a0c43322" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_027af6ed-0ed5-456d-ab18-0195a0c43322" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_5822a9ed-0ca3-4e92-a62a-6d25ca65edcb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_33d49a9c-7b74-4360-8968-9c6d3c1c5ea6" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_5822a9ed-0ca3-4e92-a62a-6d25ca65edcb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PublicOfferingMember_c4dd62b7-8bfb-4f49-91ae-9c17021dcfc1" xlink:href="chgg-20210331.xsd#chgg_PublicOfferingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_5822a9ed-0ca3-4e92-a62a-6d25ca65edcb" xlink:to="loc_chgg_PublicOfferingMember_c4dd62b7-8bfb-4f49-91ae-9c17021dcfc1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c54ec26-0c31-473e-b2ca-fa49d2231834" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_f7833200-aa3c-46c8-a40e-a63cce8dc703" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_f7833200-aa3c-46c8-a40e-a63cce8dc703" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_d53e5725-25fd-42c5-abcf-6261be31daf7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_d53e5725-25fd-42c5-abcf-6261be31daf7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_c705806c-1d91-4ac4-aef6-3dd4f979b4d8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_c705806c-1d91-4ac4-aef6-3dd4f979b4d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_330f018c-6c59-4f4f-983d-2babffef850f" xlink:href="chgg-20210331.xsd#chgg_SaleOfStockUnderwritingDiscountsAndCommissions"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_chgg_SaleOfStockUnderwritingDiscountsAndCommissions_330f018c-6c59-4f4f-983d-2babffef850f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_SaleOfStockOfferingExpenses_ac311cc9-dbe0-43f1-8128-3148b65d4879" xlink:href="chgg-20210331.xsd#chgg_SaleOfStockOfferingExpenses"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1ea5776a-b197-4227-baf6-ccfadf532926" xlink:to="loc_chgg_SaleOfStockOfferingExpenses_ac311cc9-dbe0-43f1-8128-3148b65d4879" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySecuritiesRepurchaseProgramDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_e6d96d17-d464-44dd-a004-0c68313431fd" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_e6d96d17-d464-44dd-a004-0c68313431fd" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:to="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e7081c82-0ec4-48db-a8ae-04c8717539c0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_c895fcea-970e-4357-b033-47eccaaaf056" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e7081c82-0ec4-48db-a8ae-04c8717539c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_de02f702-6c20-48c4-b588-ed2c0fad624c" xlink:href="chgg-20210331.xsd#chgg_A0.25PercentConvertibleSeniorNotesDue2023Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_e7081c82-0ec4-48db-a8ae-04c8717539c0" xlink:to="loc_chgg_A0.25PercentConvertibleSeniorNotesDue2023Member_de02f702-6c20-48c4-b588-ed2c0fad624c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_1eae10c1-a7f6-4bb4-8c40-344b1cf3d91b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_8cd610da-0f84-42d6-8db9-db819708b96a" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_1eae10c1-a7f6-4bb4-8c40-344b1cf3d91b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_dfa37d0c-9e9a-48fd-bb3a-2618153feccc" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SeniorNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1eae10c1-a7f6-4bb4-8c40-344b1cf3d91b" xlink:to="loc_us-gaap_SeniorNotesMember_dfa37d0c-9e9a-48fd-bb3a-2618153feccc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_853d3e3d-9a8c-4792-9397-eac4b291d4ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_3f425287-df56-4642-85b2-2ecb53542f58" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_3f425287-df56-4642-85b2-2ecb53542f58" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_a0379bf3-b0c9-4fa7-9fcc-6b1388c9189a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_a0379bf3-b0c9-4fa7-9fcc-6b1388c9189a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfConvertibleDebt_445efd26-c31d-48c5-9727-e5c7a79bc989" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_RepaymentsOfConvertibleDebt_445efd26-c31d-48c5-9727-e5c7a79bc989" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_fd571e50-a266-4815-8d84-6c4a092077df" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_86fca4b5-907a-457f-833d-55283ae5af1c" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_fd571e50-a266-4815-8d84-6c4a092077df" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySharebasedCompensationExpenseDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_fac35b86-9157-45d1-87cf-dcd9384543ed" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_fac35b86-9157-45d1-87cf-dcd9384543ed" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_40be2e8b-16aa-4610-ad2b-1135ed8c34c5" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_4a3a0c42-e6ba-432c-aa09-4fa7c67505d1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_CostOfSalesMember_4a3a0c42-e6ba-432c-aa09-4fa7c67505d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_7d7b82ee-58f6-47d8-b8e1-fd6a6ebe777b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_7d7b82ee-58f6-47d8-b8e1-fd6a6ebe777b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_33363077-e0de-4da2-ab69-cc77e5308167" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_33363077-e0de-4da2-ab69-cc77e5308167" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_3aa71a80-5ae9-4b8a-b035-71df8c367d6b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_79efc2bf-2944-404a-ad3b-0e27ecee388e" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_3aa71a80-5ae9-4b8a-b035-71df8c367d6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_5eff0504-bd74-4c2b-a35a-d361d047f22c" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_6d3be515-d6e4-431a-808a-d5c379753b8e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_6d3be515-d6e4-431a-808a-d5c379753b8e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_b7041982-de83-45bd-9c8b-5f87b7ce41be" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_b8924bbd-5ce9-47c6-b982-65cf40c2238c" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_b7041982-de83-45bd-9c8b-5f87b7ce41be" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_7e3aa0d3-9807-4387-a7c7-96afbb819c32" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_7e3aa0d3-9807-4387-a7c7-96afbb819c32" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f3e4a4e1-ac6f-4c24-95fa-e7cdb3057dac" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_b8f98925-a519-4c54-b975-2d03934d9a1f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f3e4a4e1-ac6f-4c24-95fa-e7cdb3057dac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesMarketBasedConditionsMember_8e73a222-6082-4891-906b-7beb363728a4" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesMarketBasedConditionsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f3e4a4e1-ac6f-4c24-95fa-e7cdb3057dac" xlink:to="loc_chgg_PerformanceSharesMarketBasedConditionsMember_8e73a222-6082-4891-906b-7beb363728a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_VestingDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingAxis_b11c3414-e177-40a1-a4af-3a7ef7d5fe8e" xlink:to="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_1c811d60-b424-4d0a-a676-dd8896b86a44" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_1c811d60-b424-4d0a-a676-dd8896b86a44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_ad9cc3f5-ceda-4280-a670-ce09b3f70747" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_ad9cc3f5-ceda-4280-a670-ce09b3f70747" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_f945edf6-b49f-44c2-a5d8-ee6f03a60e25" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VestingDomain_1e1316ef-2542-4c05-a7ec-a23066f4328b" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_f945edf6-b49f-44c2-a5d8-ee6f03a60e25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_StatementScenarioAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_a931ef6c-cec2-416b-920e-910bcef19134" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementScenarioAxis_03f561e6-baa5-4ad5-b486-69d0914509ac" xlink:to="loc_srt_ScenarioUnspecifiedDomain_a931ef6c-cec2-416b-920e-910bcef19134" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_51099d34-903a-4473-b57d-a6001b14eb8e" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ScenarioForecastMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ScenarioUnspecifiedDomain_a931ef6c-cec2-416b-920e-910bcef19134" xlink:to="loc_srt_ScenarioForecastMember_51099d34-903a-4473-b57d-a6001b14eb8e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_31312c5c-6abe-4cc1-bcb8-918bd4a652fa" xlink:to="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_bc5e10b1-c879-4fd8-a544-7703fe375ef7" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:to="loc_srt_MinimumMember_bc5e10b1-c879-4fd8-a544-7703fe375ef7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_cd958eb8-5f1a-4409-b62b-a22873909ff1" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_c67a61bf-8d85-4644-9d7e-b8d2b2b10375" xlink:to="loc_srt_MaximumMember_cd958eb8-5f1a-4409-b62b-a22873909ff1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_42864738-8e25-4aa6-95dd-b5d57f17cd83" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_c3872401-7c0c-4eaa-a1f4-8d018e19b95a" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue_c3872401-7c0c-4eaa-a1f4-8d018e19b95a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_e5daae08-9d01-49e0-967a-cff4f8638b74" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward_e5daae08-9d01-49e0-967a-cff4f8638b74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_09eb273d-9e29-447e-8601-7c428471e125" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue_09eb273d-9e29-447e-8601-7c428471e125" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_eae63798-c7a7-4ea4-8275-e987082a9c4b" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod_eae63798-c7a7-4ea4-8275-e987082a9c4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_4f2ae6b2-8a96-4350-9cb4-1d65c6848c98" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold_4f2ae6b2-8a96-4350-9cb4-1d65c6848c98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_f908c9f9-bfc8-480f-8b8a-09b533909c1b" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels_f908c9f9-bfc8-480f-8b8a-09b533909c1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_db16d552-6761-4d7a-9609-2ddf7b667be1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_db16d552-6761-4d7a-9609-2ddf7b667be1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_9e1cff91-591a-4f19-a693-4314843a1ce2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_9e1cff91-591a-4f19-a693-4314843a1ce2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_ca3371e4-8293-4d61-a4af-163ef6dbd774" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_ca3371e4-8293-4d61-a4af-163ef6dbd774" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_3acc5c20-ccad-478d-b1c8-d08fb5bbb6aa" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_3acc5c20-ccad-478d-b1c8-d08fb5bbb6aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_bc768417-1c05-414e-b5f9-54b54210efa6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_bc768417-1c05-414e-b5f9-54b54210efa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_72d400d0-6c6a-4eb7-88be-7429b20741eb" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_33ba1f9f-7912-4228-9668-383f7ab59755" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_72d400d0-6c6a-4eb7-88be-7429b20741eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySummaryofAssumptionsDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_5ca2a9b9-8c05-4aae-b1ad-bafef29ae92c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_5ca2a9b9-8c05-4aae-b1ad-bafef29ae92c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:to="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a0645e46-ce7b-45a4-89e1-0bae8aee819c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_b080da5b-fdb7-4c64-8538-c6203d8bfd00" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a0645e46-ce7b-45a4-89e1-0bae8aee819c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesMarketBasedConditionsMember_9fd8215d-d319-407b-b432-79589135f1c8" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesMarketBasedConditionsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_a0645e46-ce7b-45a4-89e1-0bae8aee819c" xlink:to="loc_chgg_PerformanceSharesMarketBasedConditionsMember_9fd8215d-d319-407b-b432-79589135f1c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:to="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_e94c2803-bf89-403d-96d7-7fc07aa70f02" xlink:to="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_25f6aedd-1e78-49a9-9a12-16cfc5699e13" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:to="loc_srt_MinimumMember_25f6aedd-1e78-49a9-9a12-16cfc5699e13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_e0411dab-852d-4439-bbf5-5b6a8bba5cfe" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_4bc12faa-6c7c-4bcc-8802-2c56404399e7" xlink:to="loc_srt_MaximumMember_e0411dab-852d-4439-bbf5-5b6a8bba5cfe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1c44bcab-85ea-4a80-9db2-a0699d2cc555" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_7d5523e2-09b9-4f1e-a961-730675c82eb7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_7d5523e2-09b9-4f1e-a961-730675c82eb7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_70c8d360-9f22-4daf-856f-2d7b4594fd25" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_70c8d360-9f22-4daf-856f-2d7b4594fd25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_16c7b58a-003c-430b-8007-bc18a4c96d71" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_16c7b58a-003c-430b-8007-bc18a4c96d71" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9e5ec1ce-f5c3-4d66-82aa-7f998762b7f8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_39d1e30f-14f8-4155-af01-eb1a0b06eef6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9e5ec1ce-f5c3-4d66-82aa-7f998762b7f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ae7122dc-42df-450c-bad1-80ae077a85b0" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ae7122dc-42df-450c-bad1-80ae077a85b0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:to="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_31151bc5-667f-491a-be17-ae61143241d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_ef90647f-5148-4d35-a9f9-e9a8da3f9c70" xlink:href="chgg-20210331.xsd#chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:to="loc_chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember_ef90647f-5148-4d35-a9f9-e9a8da3f9c70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_2128aeba-2d41-4539-b507-7ff33cba4349" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_8fbe15a1-d234-499e-a4d1-27baf5705079" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_2128aeba-2d41-4539-b507-7ff33cba4349" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:to="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_a48640e5-8913-4ee4-ba9a-3412129136c4" xlink:to="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_a43528f6-b3ab-4808-80e8-dc386fd52cd5" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MinimumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:to="loc_srt_MinimumMember_a43528f6-b3ab-4808-80e8-dc386fd52cd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_1e14a394-8e58-4164-8f78-5bd6ffc3b565" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_08b53109-59e9-4e92-ae74-4cf680f808dc" xlink:to="loc_srt_MaximumMember_1e14a394-8e58-4164-8f78-5bd6ffc3b565" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_413fbcd8-59fb-4be2-9d0c-8f355a02c976" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_c322a1fa-ed98-4fbf-a190-9df169d522b9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_c322a1fa-ed98-4fbf-a190-9df169d522b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_d069273e-0fb9-4ac2-9c5e-ecc57ba5238d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_d069273e-0fb9-4ac2-9c5e-ecc57ba5238d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_90d8f3eb-7d0d-4918-bf4e-3d3373ba7df1" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_90d8f3eb-7d0d-4918-bf4e-3d3373ba7df1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_fe4e15c7-ad9f-49d8-89b2-e53680c404c3" xlink:href="chgg-20210331.xsd#chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8524e2b7-2992-499b-8857-80d21054efe8" xlink:to="loc_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio_fe4e15c7-ad9f-49d8-89b2-e53680c404c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_4456a6e8-0845-4555-9221-b610dbe5fb9f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_4456a6e8-0845-4555-9221-b610dbe5fb9f" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:to="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_801be575-54b3-4ad5-83a8-ab59597fc72d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_e05d07cc-66da-475c-82e1-6b53393566b5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_801be575-54b3-4ad5-83a8-ab59597fc72d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_1908a46c-a7f2-44b3-9982-5426294cf7b8" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_801be575-54b3-4ad5-83a8-ab59597fc72d" xlink:to="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_1908a46c-a7f2-44b3-9982-5426294cf7b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_84d3641b-82b5-4e7e-9e76-2b8d146133a6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_5639e5b1-7683-47bf-afef-f46ce1b264d6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_5639e5b1-7683-47bf-afef-f46ce1b264d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_00df9ba8-e128-475f-b944-d6ce1af56fe6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_00df9ba8-e128-475f-b944-d6ce1af56fe6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_0697f4f9-4a7e-4e6f-bc7c-350c5f720727" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_0697f4f9-4a7e-4e6f-bc7c-350c5f720727" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_c7f53c60-c801-44d9-ba7f-4d5c7bc498b4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_c7f53c60-c801-44d9-ba7f-4d5c7bc498b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_3bb2d184-34a0-4b2f-a159-797467318da7" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_6f52abef-14d0-4734-b8ad-a64568dc1f7d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_3bb2d184-34a0-4b2f-a159-797467318da7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_b585fcda-08f4-4d5a-b609-dc31849211b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_ba70ab5d-5b96-4f17-b9ab-d61c5528c5e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_ba70ab5d-5b96-4f17-b9ab-d61c5528c5e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_b1e03afd-8821-431a-990a-db18755f1c05" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_b1e03afd-8821-431a-990a-db18755f1c05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_4fa7f3e4-fe75-446d-9179-a6626007eb4c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_4fa7f3e4-fe75-446d-9179-a6626007eb4c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_70a8200d-322b-4491-9f4a-4574501fcf6a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_70a8200d-322b-4491-9f4a-4574501fcf6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_227245b5-7a96-4d23-9cc8-0adfc1f14476" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_310e720f-5ef3-4eaa-9c51-1c9ae9fac216" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_227245b5-7a96-4d23-9cc8-0adfc1f14476" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#StockholdersEquityAdditionalInformationDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_825c01f7-4e8e-4892-ab97-0ac7c5a3aef2" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_825c01f7-4e8e-4892-ab97-0ac7c5a3aef2" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:to="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_317576dd-dca9-46d7-a08d-4297a4f9b333" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_2f094658-1dc4-4575-938e-c77f2ff13396" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_317576dd-dca9-46d7-a08d-4297a4f9b333" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_a7c4e332-1a5c-417b-bf50-aecf07a44784" xlink:href="chgg-20210331.xsd#chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_317576dd-dca9-46d7-a08d-4297a4f9b333" xlink:to="loc_chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember_a7c4e332-1a5c-417b-bf50-aecf07a44784" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3fb4389a-249d-4ac2-a9e2-27be84055d9b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_5eac36a0-c8ad-42a8-934c-34afa7a58486" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_5eac36a0-c8ad-42a8-934c-34afa7a58486" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_a9601f8e-8b9d-4c1d-b456-5af790c5d062" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_4b642bc4-19b3-4bad-a659-8650ca86de0a" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_a9601f8e-8b9d-4c1d-b456-5af790c5d062" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/RelatedPartyTransactions" xlink:type="simple" xlink:href="chgg-20210331.xsd#RelatedPartyTransactions"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/RelatedPartyTransactions" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_8ffd1008-42f7-4461-b12e-93f23a049d0c" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_349b8059-dfee-49ef-a67f-9a2e0ab00cf6" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_8ffd1008-42f7-4461-b12e-93f23a049d0c" xlink:to="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_349b8059-dfee-49ef-a67f-9a2e0ab00cf6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.chegg.com/role/RelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="chgg-20210331.xsd#RelatedPartyTransactionsDetails"/>
  <link:presentationLink xlink:role="http://www.chegg.com/role/RelatedPartyTransactionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_ba761b17-c64f-4009-b053-d922c2baef31" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_ba761b17-c64f-4009-b053-d922c2baef31" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_CounterpartyNameAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CounterpartyNameAxis_04e84a09-220e-450b-9c42-ad4c824c9f0a" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_AdobeSystemsMember_772d514d-3d49-4b2b-b388-c6393627f46c" xlink:href="chgg-20210331.xsd#chgg_AdobeSystemsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:to="loc_chgg_AdobeSystemsMember_772d514d-3d49-4b2b-b388-c6393627f46c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_ZuoraIncMember_20c9c562-041d-43ac-875d-a33a9c1364b9" xlink:href="chgg-20210331.xsd#chgg_ZuoraIncMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:to="loc_chgg_ZuoraIncMember_20c9c562-041d-43ac-875d-a33a9c1364b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PayPalHoldingsInc.Member_8948a3ba-7ec6-4a94-a016-8c3e71332f23" xlink:href="chgg-20210331.xsd#chgg_PayPalHoldingsInc.Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_c1587181-a6d5-41ca-98c8-f6f63b0cd4fa" xlink:to="loc_chgg_PayPalHoldingsInc.Member_8948a3ba-7ec6-4a94-a016-8c3e71332f23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_b9558d3e-99f3-4655-9e28-bc41b498a3ad" xlink:to="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_3f92333b-3c59-46eb-9cbd-ef19c41b569e" xlink:href="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:to="loc_srt_ChiefExecutiveOfficerMember_3f92333b-3c59-46eb-9cbd-ef19c41b569e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_BoardOfDirectorsMemberMember_672bffe7-835d-42b8-8cb1-5511dcf9ae68" xlink:href="chgg-20210331.xsd#chgg_BoardOfDirectorsMemberMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:to="loc_chgg_BoardOfDirectorsMemberMember_672bffe7-835d-42b8-8cb1-5511dcf9ae68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember_8db907e6-8008-43a6-a6fb-096c33f02fd8" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_756e7bd1-76a5-477a-a0a1-8f8e4edf9673" xlink:to="loc_us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember_8db907e6-8008-43a6-a6fb-096c33f02fd8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_46cbfc41-7a68-49e1-8be7-81bbf03d62e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_baaee579-51d2-40d1-bcf4-f568e941812b" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_46cbfc41-7a68-49e1-8be7-81bbf03d62e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_PaymentProcessingFeesMember_cdd73225-6723-46c0-894b-37dbee763242" xlink:href="chgg-20210331.xsd#chgg_PaymentProcessingFeesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_46cbfc41-7a68-49e1-8be7-81bbf03d62e4" xlink:to="loc_chgg_PaymentProcessingFeesMember_cdd73225-6723-46c0-894b-37dbee763242" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a4a5379a-45e9-42ad-8f49-100bd1d0a17b" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_64699832-e696-420d-aeb8-814b58a2e88f" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_64699832-e696-420d-aeb8-814b58a2e88f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromRelatedParties_66aa1755-82e2-41f9-a4af-4457ecb288e4" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueFromRelatedParties"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RevenueFromRelatedParties_66aa1755-82e2-41f9-a4af-4457ecb288e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToOfficersOrStockholdersCurrent_d574a236-532d-4d50-9cf6-c69e4cf3c480" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrent"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_DueToOfficersOrStockholdersCurrent_d574a236-532d-4d50-9cf6-c69e4cf3c480" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_b5228b86-2a0a-4058-8781-813486c4ef67" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionDueFromToRelatedParty"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_b5228b86-2a0a-4058-8781-813486c4ef67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_2474d6c8-91ad-4a7a-a500-5964af100896" xlink:href="chgg-20210331.xsd#chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty_2474d6c8-91ad-4a7a-a500-5964af100896" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_747b51a8-ad70-489b-89e3-c6757fd101c9" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_747b51a8-ad70-489b-89e3-c6757fd101c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_718985ff-74f3-451b-8382-455b08620476" xlink:href="chgg-20210331.xsd#chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_f688f7ef-4559-4943-97d9-4f07ad893257" xlink:to="loc_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty_718985ff-74f3-451b-8382-455b08620476" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>chgg-20210331_g1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
begin 644 chgg-20210331_g1.jpg
M_]C_X  02D9)1@ ! @  9 !D  #_[  11'5C:WD  0 $    4   _^X #D%D
M;V)E &3      ?_; (0  @(" @(" @(" @," @(#! ," @,$!00$! 0$!08%
M!04%!04&!@<'" <'!@D)"@H)"0P,# P,# P,# P,# P,# $# P,%! 4)!@8)
M#0L)"PT/#@X.#@\/# P,# P/#PP,# P,# \,# P,# P,# P,# P,# P,# P,
M# P,# P,# P,_\  $0@ J@$R P$1  (1 0,1 ?_$ +L  0 " @,! 0
M       ("08' @0% 0,! 0 " @,!               &!P4( 0,$ A   00!
M @0#!0,)!04)     0 " P0%$08A,1('05$(87$B,A.!D12AP4)28G*"DA6Q
MHB.S%L)3@Y,DT3-CPW24M!<W$0 " 0,!! 8%"@0%!0$      0(1 P0%(3$2
M!D%187&!!Y&AL2(3P=$R0E)B<H*B(_"RPA22XC,5->'20V-S)?_:  P# 0 "
M$0,1 #\ O\0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $
M0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $
M0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $
M0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $
M0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $
M0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $ 0! $
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MHQG1\,HI1:?1NWKL9:^UP<T.:=6N&H/F"MJ4ZFN)]7(" ( @" ( @" ( @"
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MG1K&#\I)/  <2> XK*Y>7:Q+4KUZ2C"*JV^C^/68[&QKF3<C:M1<IR=$ETD
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MV;2H[RJWUJ+W)][VI>/224[J]O:G<K:%W;\SVUK["+6%O.&HAMQ@]!=IQZ7
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M74T/>],?=RF]S8,31R;&GA+6O1 $>>DWTC^10._Y8ZU;?NPC/NDOZN$F5GS
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M"XQR,<.1:YI!!]Q6"MW9VY*4&TUN:V-&7G%3BXR54^A[5Z#8.7[M=R,]AO\
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<" ( @" ( @" ( @" ( @" ( @" ( @" (#__V0$!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>11
<FILENAME>chgg-20210331_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:chgg="http://www.chegg.com/20210331"
  xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:srt="http://fasb.org/srt/2020-01-31"
  xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef xlink:href="chgg-20210331.xsd" xlink:type="simple"/>
    <context id="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ia6a6db27736e4d72b7589213ce34ec7d_I20210430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <instant>2021-04-30</instant>
        </period>
    </context>
    <context id="i12c51d956373407db8eea0de5a215709_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i1189b9b25baf4aab8523a9aa3f228070_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i75ce8a2683c347d7a98fdee7717ac65d_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i4d4f387db12e4009bec314d8495f9748_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ifb4b8ca0211841198d6146d7fe70e467_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i890f8d7a70ab4f98844f6f2e9fe0ffa9_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ic5f7018a85dd4c8da3865a618c6adbd0_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ie7498e02a2ec444da7609ab9f21e2267_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i5f911dc362d5417094d4c873132e64b3_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i15f99d6225a1475dabfcbfe681ae6a0d_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i821c84575341489b8a596c5a03fd77fd_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="iacd285b7d6e34c16a7d58fce687179e9_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ie8ee3c40e8634abe852a1d56c23ce159_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i7aaa64aa124644c7838caa74841e6d21_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i7c8ffa9e6abe4879b6ee30c9c3c28132_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ia37ef2d2a7f7485b8572cd1094d91041_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="i20920cf767dd4f03bff13d94454084d5_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="id87c44d70bb1487f8c695508be494317_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="i557017987f1343b8adcb952c82c275e2_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="i5bf00fd4408e491f9fcf190d7b6e322d_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="i625eb39f43a24c1f99c2b239ffde49d3_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="i960217c9810e4a08921d0096f8bc7662_I20191231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-12-31</instant>
        </period>
    </context>
    <context id="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i910720ad46e84482856553bcc2f26dee_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="id2073e9f1c574622b6e40d4ecbe419cc_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i346ce45453a246f9964ac39e132492d5_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i2b19887b2de84de9806daf4ce7a4aecd_I20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-03-31</instant>
        </period>
    </context>
    <context id="ib22efcd6cb7548278c203ebdbadacaa5_I20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-03-31</instant>
        </period>
    </context>
    <context id="ib53e4c359806482ea0551651dd14ca2e_I20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-03-31</instant>
        </period>
    </context>
    <context id="if216661a3c3b440d8fc41ee83780b4cc_I20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-03-31</instant>
        </period>
    </context>
    <context id="i59272a2c297443db9be5d670aeaafee6_I20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <instant>2020-03-31</instant>
        </period>
    </context>
    <context id="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-08-31</instant>
        </period>
    </context>
    <context id="i80e1f5b2a35b45048f65c3687c61b69f_I20190331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-03-31</instant>
        </period>
    </context>
    <context id="ice301df70ab24ce782093b82b383deac_I20190430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2019-04-30</instant>
        </period>
    </context>
    <context id="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2019-04-01</startDate>
            <endDate>2019-04-30</endDate>
        </period>
    </context>
    <context id="i33eb76f34ecd442e90d6db2f10a7d182_I20180430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2018-04-30</instant>
        </period>
    </context>
    <context id="i632921c54b764fe89fbd2bb5011740fa_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:RestatementAxis">srt:RevisionOfPriorPeriodReclassificationAdjustmentMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i12764ae8b0df47c59efefac345506072_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CumulativeEffectPeriodOfAdoptionAxis">srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AdjustmentsForNewAccountingPronouncementsAxis">chgg:AccountingStandardsUpdate202006Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ie590078ba2a448f3881817928004f15b_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:CheggServicesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i5a78adcd90564a4eb2a754b561ee3c43_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:CheggServicesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:RequiredMaterialsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i2b6775fdc1ee4d19a27b34602e5bfc47_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:RequiredMaterialsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i578269ecbac0452bbac81b4e6b217570_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:TextbookLibraryMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i5516c03521734fb592365f3971ab5928_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ProductOrServiceAxis">chgg:TextbookLibraryMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="ifa0e963ae77b46f480a5dd642a9d4f8e_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:StockOptionMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i10283bd5321e4f9187c34a63d7fa8c44_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:StockOptionMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="idbe1e65f76754c88b280c40813c0710b_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="id30f84e2f8444a38acec1a8413c9f6a4_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i4a02fd92c9574f77b96324ae2ab96f31_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i00f03062b4b244268679dc981bb66898_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i0079279e15e5491781efbf3f502fd962_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:EmployeeStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ib83486b403d3437bb79f0bf3c2cdb3c2_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">us-gaap:EmployeeStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="icf0c070e556e42c183c49859532a8da0_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:CashMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i69e7c0175c22453c8f178db2d02ec9a5_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i172c78145baf41909551e840ec1ab464_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i415ff9e3049043c0a7667be86e6b63c1_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ie143808a98724296ab180c4cd9a7ffa0_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i4445c045e79c4f1284cc9e9dc6df3411_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:CashMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:CashAndCashEquivalentsAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i842cf9a4686d424eb086c9079f18f1a1_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CashAndCashEquivalentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="if749a358ce4843d9babf554d2374b7e3_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i916f7c55327d42038ef1c618902902f8_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i4c91464096144bd1816925c57305ca66_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:ShortTermInvestmentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i2c52aeef7c574579b798efa1f5192b06_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i253370a184ea4b09bea91473fd39b63b_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:UnderlyingAssetClassAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ied802633df7c4b63b27f5449be77be32_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:OtherLongTermInvestmentsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i8e328d3f7ae94d14ad10de83aa462d9a_I20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">chgg:TAPDInc.Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-03-31</instant>
        </period>
    </context>
    <context id="i4ac53f75170148df9efb57cc2747b5a5_I20170930">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">chgg:ForeignEntityMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2017-09-30</instant>
        </period>
    </context>
    <context id="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis">chgg:ForeignEntityMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i3c93445b7b86422e8edfa5b04878d82b_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i3d44b05731434be48f98b74572083fb3_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="id8d4674a54a54b8f92c0487fcd87b14e_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i2e3bee8f9916464594628b713455ae42_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ifca00fd8939544a2a2d9edb23b2289cf_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ic7a912906fee48328c1f9b00793b8eed_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i8acb9e05e21a49feb0632b34b6981fed_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ia87b19132045443d98991df33f3686ca_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i5a245e9bb44e45d3b0bfbb9103f1bafa_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i137267fec3ea446490ce7cadd9c292e5_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i57290ec5213c4fc6ad9484a5bf422121_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i19970572f5bc4130afaaaebb173f68db_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i00e76bc4f3824b249cba395392d5cdd6_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i5904dd9b1812445e958f4053ca2cda0a_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ibbdec02910764ace805fcb3c9ef8fe86_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i400b4a04d23446aca3c6f478368b9612_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ia70bf5bf4d9049119e6c38e39951a45a_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i5e76970462f04e609b9ad340b2f70038_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ifa05833312b64606bef2d50c7162b758_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="iedcc0b8c9d6742b6b175dd9767223469_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ib4bcab0d1a574dc7bf5765086d26ef6d_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByAssetClassAxis">us-gaap:MoneyMarketFundsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ieb780147ce0842dca611e13faf747691_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ib4fb5ce664814df2a4ec0aa1bf06089e_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i8c774c55638c45d0ae1a6631c3ea8718_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CommercialPaperMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i8ac28ab040314c8999c03a9ae78fc18d_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i61cb7edd5e844bc495f76a3cea58e192_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i080fdcbd1db4436da89f44f299c92982_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:CorporateBondSecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i3a32b85fa9c54f3c81becc293dca9f00_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i996c1de95f6741089f3fa705d124b45f_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i3ee67983fdb64d048648316ca27c57e3_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:InvestmentTypeAxis">us-gaap:AgencySecuritiesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i364b558b09924ec0a6801111772e64b3_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="if2ee030ea58e4d42a2fc86e688ad2fe5_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i17134a150c0746c69ca88b7fc2df41c9_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsRecurringMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="iddbcfc913c1248099d6e071eab53ebd8_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ic539932282a54f25aef5baa74ccc4260_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="iac7af935c18447548371b256fa5adc25_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i9dfc991bdd2945da8a20b758f5e7a4e4_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i3a5ce7f3425745f381b986d2dcc4e04e_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i9ec9b226b4fc4bfbb99f48139cf7bed1_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i707cf4308ed9453cb40bc27962b1a349_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i93f8c639a0ed47bdab784fff08e21364_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i262c95c8588a42f3902ea5c2cd1a24c0_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i385386847f734c0ca41f00702907db6c_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i756b589cc250419ea816398952a55f38_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i9bc15106cbe84069b59b9c49e4407afc_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i8631bb0aa5c5403e9a670bd4ad3bb103_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ic4d1aadda93d4ee0b061ddaacc83fcb0_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ifdb52672bb1a45f0abf595fa0238ed23_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:CarryingReportedAmountFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i68208b874ee847b78cb809d56e675824_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementBasisAxis">us-gaap:EstimateOfFairValueFairValueDisclosureMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:FairValueByMeasurementFrequencyAxis">us-gaap:FairValueMeasurementsNonrecurringMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i11978135b6904d1baefe472298180885_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ib09ea1ce125240a687be462ce814dc7a_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i410ce183bcb543a99809da1a26c8de34_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i6ac85422e9e147bcab681b82c42254bf_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i8be3c90a533a45ac87d64e719c751f88_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:BusinessAcquisitionAxis">chgg:TechnologyCompanyMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-02-22</instant>
        </period>
    </context>
    <context id="ice3bd056eafd49bd9708b80fad62ef9d_D20210222-20210222">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:BusinessAcquisitionAxis">chgg:TechnologyCompanyMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-02-22</startDate>
            <endDate>2021-02-22</endDate>
        </period>
    </context>
    <context id="i7f5901cc42994782bbb5a0bee3cfff73_I20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026AdditionalNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-08-31</instant>
        </period>
    </context>
    <context id="i1a9c08e3930a454696936ce39d040109_D20200801-20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-08-01</startDate>
            <endDate>2020-08-31</endDate>
        </period>
    </context>
    <context id="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-04-01</startDate>
            <endDate>2018-04-30</endDate>
        </period>
    </context>
    <context id="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ib9b662aece0d46a79988a718b0b99422_I20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-08-31</instant>
        </period>
    </context>
    <context id="i6574eb7422664c0ea77ac87dd435bf45_D20200801-20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-08-01</startDate>
            <endDate>2020-08-31</endDate>
        </period>
    </context>
    <context id="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-08-01</startDate>
            <endDate>2020-08-31</endDate>
        </period>
    </context>
    <context id="i9c3b234009514f3898b6d6ff45a59e1d_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i34696a2cca2346dca5112aa5dc3cb215_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtCovenantTermsAxis">chgg:SalePriceIsGreaterOrEqual130PercentMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-04-01</startDate>
            <endDate>2018-04-30</endDate>
        </period>
    </context>
    <context id="i10ce0675335840e3b76aa5898c09c6f2_D20180401-20180430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtCovenantTermsAxis">chgg:TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-04-01</startDate>
            <endDate>2018-04-30</endDate>
        </period>
    </context>
    <context id="ic6bc0c34f9ba4685aac266aded393d33_D20180401-20180430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtCovenantTermsAxis">chgg:TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-04-01</startDate>
            <endDate>2018-04-30</endDate>
        </period>
    </context>
    <context id="iebd16c25b055465eb3a3ee69e374cdf6_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i828489fc9bf54ed39b281345555df08c_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-04-01</startDate>
            <endDate>2021-04-30</endDate>
        </period>
    </context>
    <context id="ifaff83de79ca489c9caeb776fad6cc1a_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ic2d348238f7a4e35a7a63b88419ea1b1_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:ExchangeOfAggregatePrincipalAmountMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:ExchangeOfAggregatePrincipalAmountMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ic913f67407734139bb465a041bd7b56a_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i568f5741347647b8927ee0b75dd20526_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="if40b6a70d0ee4fb2bc84c7a1eca79711_D20200801-20200831">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-08-01</startDate>
            <endDate>2020-08-31</endDate>
        </period>
    </context>
    <context id="ib1eb4154732349119fdba5d7d7c90012_D20190401-20190430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.125PercentConvertibleSeniorNotesDue2025Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2019-04-01</startDate>
            <endDate>2019-04-30</endDate>
        </period>
    </context>
    <context id="idd446d0d3ca14b7bb7dc83fe63327303_D20180401-20180430">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-04-01</startDate>
            <endDate>2018-04-30</endDate>
        </period>
    </context>
    <context id="id8786dbc8fd440b79f10ef7c37a3f18c_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0ConvertibleSeniorNotesDue2026Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i58eef5d33dcc48688b91d17c94e15621_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:DebtInstrumentAxis">chgg:A0.25PercentConvertibleSeniorNotesDue2023Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">us-gaap:SeniorNotesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="chgg:DebtInstrumentTransactionAxis">chgg:CappedCallMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i56c8d4a014af47a0aae4b5b8cec5e57e_I20200721">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:VitalSourceTechnologiesLLCVSTVsCheggMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LitigationStatusAxis">us-gaap:PendingLitigationMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-07-21</instant>
        </period>
    </context>
    <context id="i41662b440e844378b83b68a464408983_D20200512-20200512">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:A2018DataIncidentArbitrationDemandsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LitigationStatusAxis">us-gaap:PendingLitigationMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-05-12</startDate>
            <endDate>2020-05-12</endDate>
        </period>
    </context>
    <context id="ic9f1749896224651875bc489f30602b9_D20200701-20200701">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:A2018DataIncidentArbitrationDemandsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:LitigationStatusAxis">us-gaap:PendingLitigationMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-07-01</startDate>
            <endDate>2020-07-01</endDate>
        </period>
    </context>
    <context id="iffcce83a3e0a48929e979c62d5fe0feb_D20200812-20200812">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:LitigationCaseAxis">chgg:A2018DataIncidentArbitrationDemandsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-08-12</startDate>
            <endDate>2020-08-12</endDate>
        </period>
    </context>
    <context id="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">chgg:PublicOfferingMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-02-01</startDate>
            <endDate>2021-02-28</endDate>
        </period>
    </context>
    <context id="ieace5e8c8a9b4b789b505aefcd900af2_I20210228">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:SubsidiarySaleOfStockAxis">chgg:PublicOfferingMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-02-28</instant>
        </period>
    </context>
    <context id="i4d2401de5ba546d390f5e9974709da7f_I20200630">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
        </entity>
        <period>
            <instant>2020-06-30</instant>
        </period>
    </context>
    <context id="i63edd251631c4b27981b515396ee4012_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:CostOfSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="idba69f9a905a4c27be84a508ebace169_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:CostOfSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="iba7cf555c40c42d5a91d5737fa16046c_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:ResearchAndDevelopmentExpenseMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="id22893a050e04088a0e4abee10ef4f5a_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:ResearchAndDevelopmentExpenseMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i92ada1088fd34a1e9215923abc72ffef_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:SellingAndMarketingExpenseMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="idf89328053f443069bfc56c2b10e490b_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:SellingAndMarketingExpenseMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="iff0c34d13b0a4cc0929ae2febc24d361_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:GeneralAndAdministrativeExpenseMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ifde7b8c3a47b413a93d130cc884255b9_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:IncomeStatementLocationAxis">us-gaap:GeneralAndAdministrativeExpenseMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i86b8ea162c34436688b9d0c26384fb42_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i7f3824120c674d758a0e7546dab59828_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="if1ccb61b2eca47959ec3f2b1c83d2516_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i3e91538dab90434a8c28609c79636341_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheOneMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i805c55cd19e7402b8cc3365e520eebac_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheTwoMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i1d610928a8304be08320eefbc0bc522e_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:VestingAxis">us-gaap:ShareBasedCompensationAwardTrancheThreeMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="ide9e54322d4f4a91a9002245f04ab235_D20240301-20240331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:StatementScenarioAxis">srt:ScenarioForecastMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesMarketBasedConditionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-03-01</startDate>
            <endDate>2024-03-31</endDate>
        </period>
    </context>
    <context id="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesFinancialAndStrategicPerformanceTargetsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i4c95bfb512cd4083a532fb0833f49a47_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:PerformanceSharesFinancialAndStrategicPerformanceTargetsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i94818635c5c544428839463bc6e8a36d_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MinimumMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">us-gaap:RestrictedStockUnitsRSUMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i201e1f4000664b508d73f5e86160e5bf_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:RangeAxis">srt:MaximumMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">us-gaap:RestrictedStockUnitsRSUMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i91929bef1c4e43a2abbf3d3a09e0d999_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:AwardTypeAxis">chgg:RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i1f614ee084a1468686803c83c6301868_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="idb10cb96493c47de81f06e9bd4923178_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="ic935a646906045b6888f5a72bcc403e5_I20201231">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2020-12-31</instant>
        </period>
    </context>
    <context id="i44c5b21731b04cbb934f4da7c11bc671_I20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:AdobeSystemsMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">srt:ChiefExecutiveOfficerMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <instant>2021-03-31</instant>
        </period>
    </context>
    <context id="i2dfc98470ee44a22bb6fda10432c17d0_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:PayPalHoldingsInc.Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionAxis">chgg:PaymentProcessingFeesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">us-gaap:ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="ieaf219e91397420b8ac83b4004a64436_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:PayPalHoldingsInc.Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionAxis">chgg:PaymentProcessingFeesMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">us-gaap:ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <context id="i54b84e300cd7411394549e694c42c059_D20210101-20210331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:ZuoraIncMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">chgg:BoardOfDirectorsMemberMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-03-31</endDate>
        </period>
    </context>
    <context id="i50761de480ce48699fb0528ba8500b03_D20200101-20200331">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001364954</identifier>
            <segment>
                <xbrldi:explicitMember dimension="srt:CounterpartyNameAxis">chgg:ZuoraIncMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="us-gaap:RelatedPartyTransactionsByRelatedPartyAxis">chgg:BoardOfDirectorsMemberMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-03-31</endDate>
        </period>
    </context>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <unit id="usd">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="usdPerShare">
        <divide>
            <unitNumerator>
                <measure>iso4217:USD</measure>
            </unitNumerator>
            <unitDenominator>
                <measure>shares</measure>
            </unitDenominator>
        </divide>
    </unit>
    <unit id="number">
        <measure>pure</measure>
    </unit>
    <unit id="day">
        <measure>chgg:day</measure>
    </unit>
    <unit id="numberofplaintiffs">
        <measure>chgg:numberOfPlaintiffs</measure>
    </unit>
    <unit id="board_member">
        <measure>chgg:board_member</measure>
    </unit>
    <dei:EntityCentralIndexKey
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV80LTEtMS0xLTA_8953b355-dd8d-45ed-952a-f613fb3a7ef3">0001364954</dei:EntityCentralIndexKey>
    <dei:CurrentFiscalYearEndDate
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV81LTEtMS0xLTA_4003dcfc-9abe-4c18-8efc-fa4f3ad9775c">--12-31</dei:CurrentFiscalYearEndDate>
    <dei:DocumentFiscalYearFocus
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV82LTEtMS0xLTA_ac66114a-8096-48b1-b141-b1d529610cc3">2021</dei:DocumentFiscalYearFocus>
    <dei:DocumentFiscalPeriodFocus
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV83LTEtMS0xLTA_c5ff1fa9-be0c-4a1c-be41-ef9fc3aecd5f">Q1</dei:DocumentFiscalPeriodFocus>
    <dei:AmendmentFlag
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80L2ZyYWc6ZWJlMTg2YmNlYTNhNDA4Njk1ZTI5ZGIyMmNiYzllYmMvdGFibGU6MTc3MDg5YmJhZDI0NDAzNDlhYjEwZjRjMmZjNzVmZDUvdGFibGVyYW5nZToxNzcwODliYmFkMjQ0MDM0OWFiMTBmNGMyZmM3NWZkNV84LTEtMS0xLTA_e98fea98-fa6e-44d9-bf66-339bdd67991f">false</dei:AmendmentFlag>
    <us-gaap:AccountingStandardsUpdateExtensibleList
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC0wLTEtMS0w_2686bbfc-8c61-49a3-893d-bd31e4b6bcc3">us-gaap:AccountingStandardsUpdate201613Member</us-gaap:AccountingStandardsUpdateExtensibleList>
    <us-gaap:DebtInstrumentConvertibleConversionRatio1
      contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831"
      decimals="7"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82MS9mcmFnOjI3MTIyZmRmN2M1ZDQ2NjJhZjQwMzIzYTYzMzkwZDdiL3RhYmxlOmM2OWEyNmEyZmRjNTRlYjNiZDJmZTIzODFlNDY2MDk5L3RhYmxlcmFuZ2U6YzY5YTI2YTJmZGM1NGViM2JkMmZlMjM4MWU0NjYwOTlfMC0xLTEtMS0w_0aa075d9-8d77-498b-9eec-fc3c481cbaa7"
      unitRef="number">0.0092978</us-gaap:DebtInstrumentConvertibleConversionRatio1>
    <us-gaap:DebtInstrumentConvertibleConversionRatio1
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="7"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82MS9mcmFnOjI3MTIyZmRmN2M1ZDQ2NjJhZjQwMzIzYTYzMzkwZDdiL3RhYmxlOmM2OWEyNmEyZmRjNTRlYjNiZDJmZTIzODFlNDY2MDk5L3RhYmxlcmFuZ2U6YzY5YTI2YTJmZGM1NGViM2JkMmZlMjM4MWU0NjYwOTlfMS0xLTEtMS0w_2120eb75-7430-4705-8005-1bc89012d2ba"
      unitRef="number">0.0193956</us-gaap:DebtInstrumentConvertibleConversionRatio1>
    <us-gaap:DebtInstrumentConvertibleConversionRatio1
      contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430"
      decimals="7"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82MS9mcmFnOjI3MTIyZmRmN2M1ZDQ2NjJhZjQwMzIzYTYzMzkwZDdiL3RhYmxlOmM2OWEyNmEyZmRjNTRlYjNiZDJmZTIzODFlNDY2MDk5L3RhYmxlcmFuZ2U6YzY5YTI2YTJmZGM1NGViM2JkMmZlMjM4MWU0NjYwOTlfMi0xLTEtMS0w_af0583c6-758a-47f1-a777-5b0d648e1b5e"
      unitRef="number">0.0371051</us-gaap:DebtInstrumentConvertibleConversionRatio1>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
      contextRef="i94818635c5c544428839463bc6e8a36d_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDYzMg_7f49de0b-bd54-4373-8afe-28d7d153a634">P3Y</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>
    <dei:DocumentType
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg2_8892f276-496b-4512-9de5-0abba56fe634">10-Q</dei:DocumentType>
    <dei:DocumentQuarterlyReport
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MzFiYzM4ZWJmN2NlNGRkNjllMDRhZGVjYTcyYjA5MzUvdGFibGVyYW5nZTozMWJjMzhlYmY3Y2U0ZGQ2OWUwNGFkZWNhNzJiMDkzNV8wLTAtMS0xLTA_8080d4c6-bf6d-4b34-a0cc-594b405548dc">true</dei:DocumentQuarterlyReport>
    <dei:DocumentPeriodEndDate
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xMjY_7b8e7d02-89da-455d-b0d3-b94a15f7da7c">2021-03-31</dei:DocumentPeriodEndDate>
    <dei:DocumentTransitionReport
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6N2U1NTIwMTMyYjkyNDE0NGI0ZGQwYWE0MzUwNGYzOWYvdGFibGVyYW5nZTo3ZTU1MjAxMzJiOTI0MTQ0YjRkZDBhYTQzNTA0ZjM5Zl8wLTAtMS0xLTA_97d988d9-869f-45de-8e04-a94f7ba1e3ff">false</dei:DocumentTransitionReport>
    <dei:EntityFileNumber
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg3_8416ad76-c918-46ce-8afc-8dd498ad7288">001-36180</dei:EntityFileNumber>
    <dei:EntityRegistrantName
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTgz_e63bd7bf-656b-4065-96ce-bb53cd5319bc">CHEGG, INC</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6ZGJjMjM1M2ZlYzZjNDY5ZDg2ZDc0NDE5MDQwNjAwZTIvdGFibGVyYW5nZTpkYmMyMzUzZmVjNmM0NjlkODZkNzQ0MTkwNDA2MDBlMl8wLTAtMS0xLTA_f5b30817-5f92-4a5e-b83a-e61323d20cec">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityTaxIdentificationNumber
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6ZGJjMjM1M2ZlYzZjNDY5ZDg2ZDc0NDE5MDQwNjAwZTIvdGFibGVyYW5nZTpkYmMyMzUzZmVjNmM0NjlkODZkNzQ0MTkwNDA2MDBlMl8wLTItMS0xLTA_9e83edad-eaec-45e2-afbb-0106fa7e9098">20-3237489</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg4_c3dcbd6e-7c08-4b3c-a7f1-2b8c842622af">3990 Freedom Circle</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg5_da0662d2-b950-448d-9ecb-03b175498275">Santa Clara</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTkw_a8a0fa47-0b1f-4925-85c5-25b1daa690a2">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTkx_aecde210-1042-4dba-a55b-8fb722304b2e">95054</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTky_cf9e2513-dcce-4221-8fb7-9d072b12c1a0">408</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg0_c2e001f2-4897-44aa-b435-749dd1703f42">855-5700</dei:LocalPhoneNumber>
    <dei:Security12bTitle
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6NDNiYjlmN2U3Y2I4NGE5OTk3ODc3NzQ5YTIxN2NlMTkvdGFibGVyYW5nZTo0M2JiOWY3ZTdjYjg0YTk5OTc4Nzc3NDlhMjE3Y2UxOV8xLTAtMS0xLTA_fb75e579-faf4-4149-af44-76ef0d4a85d3">Common stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6NDNiYjlmN2U3Y2I4NGE5OTk3ODc3NzQ5YTIxN2NlMTkvdGFibGVyYW5nZTo0M2JiOWY3ZTdjYjg0YTk5OTc4Nzc3NDlhMjE3Y2UxOV8xLTEtMS0xLTA_8653104b-c836-47e1-9628-eb928d8b21ff">CHGG</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6NDNiYjlmN2U3Y2I4NGE5OTk3ODc3NzQ5YTIxN2NlMTkvdGFibGVyYW5nZTo0M2JiOWY3ZTdjYjg0YTk5OTc4Nzc3NDlhMjE3Y2UxOV8xLTItMS0xLTA_d0ca0723-625e-4c3f-8d27-a31e9f711492">NYSE</dei:SecurityExchangeName>
    <dei:EntityCurrentReportingStatus
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTg1_8cf72c60-75c8-4bb1-87d7-360dae4a8fef">Yes</dei:EntityCurrentReportingStatus>
    <dei:EntityInteractiveDataCurrent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTkz_f9c885c4-c883-4efc-a3f3-a51926ba932e">Yes</dei:EntityInteractiveDataCurrent>
    <dei:EntityFilerCategory
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MGMyYjlkZTIyM2Y0NGY5MGJmZWY4MTUyYTkwZWU1OTQvdGFibGVyYW5nZTowYzJiOWRlMjIzZjQ0ZjkwYmZlZjgxNTJhOTBlZTU5NF8wLTAtMS0xLTA_fd51380a-e93f-48f2-b4aa-a8c0b81af574">Large Accelerated Filer</dei:EntityFilerCategory>
    <dei:EntitySmallBusiness
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MGMyYjlkZTIyM2Y0NGY5MGJmZWY4MTUyYTkwZWU1OTQvdGFibGVyYW5nZTowYzJiOWRlMjIzZjQ0ZjkwYmZlZjgxNTJhOTBlZTU5NF8xLTMtMS0xLTA_2522350c-d1be-43c7-96a7-9c10d0003e49">false</dei:EntitySmallBusiness>
    <dei:EntityEmergingGrowthCompany
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGFibGU6MGMyYjlkZTIyM2Y0NGY5MGJmZWY4MTUyYTkwZWU1OTQvdGFibGVyYW5nZTowYzJiOWRlMjIzZjQ0ZjkwYmZlZjgxNTJhOTBlZTU5NF8yLTEtMS0xLTA_93726f33-478d-4b4c-b13d-5fa4077a7cfd">false</dei:EntityEmergingGrowthCompany>
    <dei:EntityShellCompany
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTk0_cb4c7fe2-fc75-44e6-9128-7094e7fc0efe">false</dei:EntityShellCompany>
    <dei:EntityCommonStockSharesOutstanding
      contextRef="ia6a6db27736e4d72b7589213ce34ec7d_I20210430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xL2ZyYWc6YTE5NDY0MzA0MGY4NDIwMWE0NGVlMTk3OGM3NTU2MTIvdGV4dHJlZ2lvbjphMTk0NjQzMDQwZjg0MjAxYTQ0ZWUxOTc4Yzc1NTYxMl8xOTQw_0b365535-4eec-4044-9703-611aaf182092"
      unitRef="shares">141935085</dei:EntityCommonStockSharesOutstanding>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMy0xLTEtMS0w_704a6d3c-221c-4bab-b428-c9b9f0b3923e"
      unitRef="usd">656168000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMy0zLTEtMS0w_4606646a-ead7-468b-838d-6532b21e3945"
      unitRef="usd">479853000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:ShortTermInvestments
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNC0xLTEtMS0w_aaf15133-2e6e-4692-8922-486a657be4db"
      unitRef="usd">1215944000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNC0zLTEtMS0w_6179a899-1699-4953-9d64-6afe0fa5fb81"
      unitRef="usd">665567000</us-gaap:ShortTermInvestments>
    <us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0wLTEtMS0wL3RleHRyZWdpb246Y2E3ZTI3NzYzOTRiNDJlNzgyNDcwMWY2YjE2ZGZjOWRfNDU_8b1b6104-8b35-4d29-8595-e7e29dbbb1c9"
      unitRef="usd">169000</us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent>
    <us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0wLTEtMS0wL3RleHRyZWdpb246Y2E3ZTI3NzYzOTRiNDJlNzgyNDcwMWY2YjE2ZGZjOWRfNTI_0b093812-eabf-41a9-9af9-a14e92aa8e33"
      unitRef="usd">153000</us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent>
    <us-gaap:AccountsReceivableNetCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0xLTEtMS0w_c9c895eb-ee56-4257-9ac2-6a33f5056a49"
      unitRef="usd">11633000</us-gaap:AccountsReceivableNetCurrent>
    <us-gaap:AccountsReceivableNetCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNS0zLTEtMS0w_fc075a9a-d122-4704-a0de-b2a075f3f0be"
      unitRef="usd">12913000</us-gaap:AccountsReceivableNetCurrent>
    <us-gaap:PrepaidExpenseCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNi0xLTEtMS0w_90492bb8-7716-4417-a24c-50caf85084e2"
      unitRef="usd">25256000</us-gaap:PrepaidExpenseCurrent>
    <us-gaap:PrepaidExpenseCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNi0zLTEtMS0w_f294e97b-fa74-43c2-babd-47005c6a2ca8"
      unitRef="usd">12776000</us-gaap:PrepaidExpenseCurrent>
    <us-gaap:OtherAssetsCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNy0xLTEtMS0w_62d2f2ad-7d25-40d3-a5cb-de63b5aa7f2a"
      unitRef="usd">26625000</us-gaap:OtherAssetsCurrent>
    <us-gaap:OtherAssetsCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfNy0zLTEtMS0w_02bd00c6-4cfc-4f82-99a1-79733345f2fb"
      unitRef="usd">11846000</us-gaap:OtherAssetsCurrent>
    <us-gaap:AssetsCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOC0xLTEtMS0w_39cb3210-76d3-42b5-8048-55dedd4a5e5e"
      unitRef="usd">1935626000</us-gaap:AssetsCurrent>
    <us-gaap:AssetsCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOC0zLTEtMS0w_9fc09b57-46dc-4647-ab61-e876c8da6891"
      unitRef="usd">1182955000</us-gaap:AssetsCurrent>
    <us-gaap:LongTermInvestments
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOS0xLTEtMS0w_ebc8ef4d-77f2-4df2-8bb1-7bb4f6cb897f"
      unitRef="usd">711224000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfOS0zLTEtMS0w_00efa0a2-00e4-43cd-a177-938c8e0b3605"
      unitRef="usd">523628000</us-gaap:LongTermInvestments>
    <chgg:TextbookLibraryNet
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTAtMS0xLTEtMA_dfe5c001-4ac1-4995-820f-20aebe3deef0"
      unitRef="usd">24000000</chgg:TextbookLibraryNet>
    <chgg:TextbookLibraryNet
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTAtMy0xLTEtMA_2e76a977-5ab1-4d62-aaca-1c5ee21d189f"
      unitRef="usd">34149000</chgg:TextbookLibraryNet>
    <us-gaap:PropertyPlantAndEquipmentNet
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTEtMS0xLTEtMA_de292375-424c-41ac-94f4-bbffca3a3781"
      unitRef="usd">134093000</us-gaap:PropertyPlantAndEquipmentNet>
    <us-gaap:PropertyPlantAndEquipmentNet
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTEtMy0xLTEtMA_6163f924-a6e4-4e24-a4a1-640b9a4b83cb"
      unitRef="usd">125807000</us-gaap:PropertyPlantAndEquipmentNet>
    <us-gaap:Goodwill
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTItMS0xLTEtMA_8b4181e8-27d3-45b2-b909-eb8208ec4126"
      unitRef="usd">290601000</us-gaap:Goodwill>
    <us-gaap:Goodwill
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTItMy0xLTEtMA_541a5a4f-375e-4f1d-90ce-10483e669275"
      unitRef="usd">285214000</us-gaap:Goodwill>
    <us-gaap:IntangibleAssetsNetExcludingGoodwill
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTMtMS0xLTEtMA_9fc2b5b0-1c8f-482c-b532-2582d5bd0a97"
      unitRef="usd">49798000</us-gaap:IntangibleAssetsNetExcludingGoodwill>
    <us-gaap:IntangibleAssetsNetExcludingGoodwill
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTMtMy0xLTEtMA_295e0df5-6181-4692-a52c-fe241075d5db"
      unitRef="usd">51249000</us-gaap:IntangibleAssetsNetExcludingGoodwill>
    <us-gaap:OperatingLeaseRightOfUseAsset
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTQtMS0xLTEtMA_58c502ed-f3e1-472a-b5e6-3ef1a5a5fe33"
      unitRef="usd">22617000</us-gaap:OperatingLeaseRightOfUseAsset>
    <us-gaap:OperatingLeaseRightOfUseAsset
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTQtMy0xLTEtMA_ebad8e5f-f2a6-4155-86fe-6f06b4601894"
      unitRef="usd">24226000</us-gaap:OperatingLeaseRightOfUseAsset>
    <us-gaap:OtherAssetsNoncurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTUtMS0xLTEtMA_285e4df6-27c7-41cf-8174-5bf14e48be17"
      unitRef="usd">25602000</us-gaap:OtherAssetsNoncurrent>
    <us-gaap:OtherAssetsNoncurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTUtMy0xLTEtMA_88545c12-f220-441d-85fa-96f02430bff4"
      unitRef="usd">24030000</us-gaap:OtherAssetsNoncurrent>
    <us-gaap:Assets
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTYtMS0xLTEtMA_02977199-b68a-4ebb-83fd-64b1ad5b0da0"
      unitRef="usd">3193561000</us-gaap:Assets>
    <us-gaap:Assets
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTYtMy0xLTEtMA_96bc365d-97bb-4800-9ac8-ac41e73bc5c1"
      unitRef="usd">2251258000</us-gaap:Assets>
    <us-gaap:AccountsPayableCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTktMS0xLTEtMA_d53ec71f-8743-4790-ba37-fa8787c2b0e6"
      unitRef="usd">14902000</us-gaap:AccountsPayableCurrent>
    <us-gaap:AccountsPayableCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMTktMy0xLTEtMA_fb0de7c5-a825-431b-9344-0d33890c8a21"
      unitRef="usd">8547000</us-gaap:AccountsPayableCurrent>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjAtMS0xLTEtMA_b25ab3c4-47a3-426b-9eaf-6f57d5f6ac35"
      unitRef="usd">48608000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjAtMy0xLTEtMA_9e361532-45b3-4244-bc86-0376d68415fe"
      unitRef="usd">32620000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:AccruedLiabilitiesCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjItMS0xLTEtMA_7607edaa-8c80-498d-abcc-b5a70b24ae7a"
      unitRef="usd">78089000</us-gaap:AccruedLiabilitiesCurrent>
    <us-gaap:AccruedLiabilitiesCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjItMy0xLTEtMA_874d27c7-2eab-415f-9925-bdf45b109f02"
      unitRef="usd">68565000</us-gaap:AccruedLiabilitiesCurrent>
    <us-gaap:SeniorNotesCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMS0xLTEtNzU_5dd08d85-8ebc-4ec1-b99c-04594a6134a0"
      unitRef="usd">109494000</us-gaap:SeniorNotesCurrent>
    <us-gaap:SeniorNotesCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMy0xLTEtNzU_1c128e5a-ef79-45e3-b8db-03336fd37ef7"
      unitRef="usd">0</us-gaap:SeniorNotesCurrent>
    <us-gaap:LiabilitiesCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMS0xLTEtMA_e0371d93-02cc-480f-acfa-778d07b1776b"
      unitRef="usd">251093000</us-gaap:LiabilitiesCurrent>
    <us-gaap:LiabilitiesCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjMtMy0xLTEtMA_14783829-4e38-4525-8d6b-e6a795e23ac5"
      unitRef="usd">109732000</us-gaap:LiabilitiesCurrent>
    <us-gaap:SeniorLongTermNotes
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjUtMS0xLTEtMA_eb836850-0665-4f1a-8da0-1ef55dd07e36"
      unitRef="usd">1673946000</us-gaap:SeniorLongTermNotes>
    <us-gaap:SeniorLongTermNotes
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjUtMy0xLTEtMA_540bf54f-87c0-4342-bab6-8e7e8596e1a8"
      unitRef="usd">1506922000</us-gaap:SeniorLongTermNotes>
    <us-gaap:OperatingLeaseLiabilityNoncurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjYtMS0xLTEtMA_3c2194f5-b816-460f-9942-ce47b2d5af02"
      unitRef="usd">17551000</us-gaap:OperatingLeaseLiabilityNoncurrent>
    <us-gaap:OperatingLeaseLiabilityNoncurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjYtMy0xLTEtMA_ea30afa3-4589-4812-a75d-11ac3ef1a5fe"
      unitRef="usd">19264000</us-gaap:OperatingLeaseLiabilityNoncurrent>
    <us-gaap:OtherLiabilitiesNoncurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjctMS0xLTEtMA_ed9d34e0-b216-4503-8402-89cdf194e58f"
      unitRef="usd">7628000</us-gaap:OtherLiabilitiesNoncurrent>
    <us-gaap:OtherLiabilitiesNoncurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjctMy0xLTEtMA_72250cc1-f91c-44d3-a154-78f411cd969d"
      unitRef="usd">5705000</us-gaap:OtherLiabilitiesNoncurrent>
    <us-gaap:LiabilitiesNoncurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjgtMS0xLTEtMA_779a68e2-3090-40e1-8565-6d932934d8d8"
      unitRef="usd">1699125000</us-gaap:LiabilitiesNoncurrent>
    <us-gaap:LiabilitiesNoncurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjgtMy0xLTEtMA_d8e295e3-5fe7-4fac-bee2-d0ff2bb74b6d"
      unitRef="usd">1531891000</us-gaap:LiabilitiesNoncurrent>
    <us-gaap:Liabilities
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjktMS0xLTEtMA_71c2ae4b-75c1-4d6d-8ada-7a040fe081cb"
      unitRef="usd">1950218000</us-gaap:Liabilities>
    <us-gaap:Liabilities
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMjktMy0xLTEtMA_9e787388-9200-420f-b25d-1dc5639d77a6"
      unitRef="usd">1641623000</us-gaap:Liabilities>
    <us-gaap:CommitmentsAndContingencies
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzAtMS0xLTEtMA_bfa5a62c-8fd0-45f2-b3dc-e3b26c4e31a3"
      unitRef="usd"
      xsi:nil="true"/>
    <us-gaap:CommitmentsAndContingencies
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzAtMy0xLTEtMA_d1f007f2-e074-4783-993c-5fe9ba88673d"
      unitRef="usd"
      xsi:nil="true"/>
    <us-gaap:PreferredStockParOrStatedValuePerShare
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzIx_9df2a03b-4a33-49c1-8af1-2e58adeb7672"
      unitRef="usdPerShare">0.001</us-gaap:PreferredStockParOrStatedValuePerShare>
    <us-gaap:PreferredStockParOrStatedValuePerShare
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzIx_af520b53-2f3d-4cae-8acd-46f1982c6ac4"
      unitRef="usdPerShare">0.001</us-gaap:PreferredStockParOrStatedValuePerShare>
    <us-gaap:PreferredStockSharesAuthorized
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzM2_5cc78e79-31eb-440c-90a4-fd05c2044566"
      unitRef="shares">10000000</us-gaap:PreferredStockSharesAuthorized>
    <us-gaap:PreferredStockSharesAuthorized
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzM2_a423b4b0-b15b-42da-b342-639e2b340942"
      unitRef="shares">10000000</us-gaap:PreferredStockSharesAuthorized>
    <us-gaap:PreferredStockSharesIssued
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_0afdbd18-de02-4f22-9af5-de32ef58b960"
      unitRef="shares">0</us-gaap:PreferredStockSharesIssued>
    <us-gaap:PreferredStockSharesOutstanding
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_34ff9028-088e-4ae8-8b54-89f66082499c"
      unitRef="shares">0</us-gaap:PreferredStockSharesOutstanding>
    <us-gaap:PreferredStockSharesIssued
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_433f038e-f561-4192-86cf-a8d57543a5af"
      unitRef="shares">0</us-gaap:PreferredStockSharesIssued>
    <us-gaap:PreferredStockSharesOutstanding
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMC0xLTEtMC90ZXh0cmVnaW9uOjM3YTI3MjRmNWRmYTRhZDZiNGE0YzgyZjkwNzk2YjA2XzU4_f87afcf4-040f-4646-81c5-28a0058d58af"
      unitRef="shares">0</us-gaap:PreferredStockSharesOutstanding>
    <us-gaap:PreferredStockValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMS0xLTEtMA_5cbac626-ba52-4d90-8e15-42b9101bd8ab"
      unitRef="usd">0</us-gaap:PreferredStockValue>
    <us-gaap:PreferredStockValue
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzItMy0xLTEtMA_b82cdc2b-8383-473a-aacf-de05d6a73056"
      unitRef="usd">0</us-gaap:PreferredStockValue>
    <us-gaap:CommonStockParOrStatedValuePerShare
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzE4_eb8c28cf-0b88-4505-9890-e83886485ad6"
      unitRef="usdPerShare">0.001</us-gaap:CommonStockParOrStatedValuePerShare>
    <us-gaap:CommonStockParOrStatedValuePerShare
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzE4_fbd7d5cf-7368-441c-8942-c77303bee650"
      unitRef="usdPerShare">0.001</us-gaap:CommonStockParOrStatedValuePerShare>
    <us-gaap:CommonStockSharesAuthorized
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzMx_82d2e891-76d7-43fa-8263-2210c8d52e97"
      unitRef="shares">400000000</us-gaap:CommonStockSharesAuthorized>
    <us-gaap:CommonStockSharesAuthorized
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzMx_d653c909-e9e9-46d6-9f82-7e06ea5e6ead"
      unitRef="shares">400000000</us-gaap:CommonStockSharesAuthorized>
    <us-gaap:CommonStockSharesOutstanding
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzUz_39a9b274-3437-42ef-a28e-6c27d0a32f5d"
      unitRef="shares">141317066</us-gaap:CommonStockSharesOutstanding>
    <us-gaap:CommonStockSharesIssued
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzUz_9379a17a-c963-4c8c-a4ef-8bcb6e92a2ee"
      unitRef="shares">141317066</us-gaap:CommonStockSharesIssued>
    <us-gaap:CommonStockSharesIssued
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzYw_51eaa406-f511-4b1a-994f-5b22104f541d"
      unitRef="shares">129343524</us-gaap:CommonStockSharesIssued>
    <us-gaap:CommonStockSharesOutstanding
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMC0xLTEtMC90ZXh0cmVnaW9uOjUzYWM5OGQ1MDk0NzQ0Yzc5ODI4ZDU2MmQyNTA3Njg1XzYw_d5d5fe29-ac34-44a3-9e5c-1af297ca9faa"
      unitRef="shares">129343524</us-gaap:CommonStockSharesOutstanding>
    <us-gaap:CommonStockValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMS0xLTEtMA_4953da2b-5b89-49fe-875e-aa09c102af59"
      unitRef="usd">141000</us-gaap:CommonStockValue>
    <us-gaap:CommonStockValue
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzMtMy0xLTEtMA_755a1ef7-1756-4c7d-b113-10aa95f50829"
      unitRef="usd">129000</us-gaap:CommonStockValue>
    <us-gaap:AdditionalPaidInCapitalCommonStock
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzQtMS0xLTEtMA_c36ceb81-4009-489e-ac18-1f446b3b32c4"
      unitRef="usd">1645352000</us-gaap:AdditionalPaidInCapitalCommonStock>
    <us-gaap:AdditionalPaidInCapitalCommonStock
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzQtMy0xLTEtMA_20f8218b-aab9-4f70-aa74-2dfafa63a781"
      unitRef="usd">1030577000</us-gaap:AdditionalPaidInCapitalCommonStock>
    <us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzUtMS0xLTEtMA_738bb68e-fb13-4cb8-8f36-f85ebafee887"
      unitRef="usd">-1238000</us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax>
    <us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzUtMy0xLTEtMA_7e56377d-7e27-4a6f-af13-1e325dff0559"
      unitRef="usd">1530000</us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax>
    <us-gaap:RetainedEarningsAccumulatedDeficit
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzYtMS0xLTEtMA_5bbfe85a-a83d-4ab5-9496-c6c8f9f4d8d2"
      unitRef="usd">-400912000</us-gaap:RetainedEarningsAccumulatedDeficit>
    <us-gaap:RetainedEarningsAccumulatedDeficit
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzYtMy0xLTEtMA_1749c09d-8b05-4e2d-ae82-7d09e60adb03"
      unitRef="usd">-422601000</us-gaap:RetainedEarningsAccumulatedDeficit>
    <us-gaap:StockholdersEquity
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzctMS0xLTEtMA_75fdae0d-0c6f-49ec-8e30-444a780f323e"
      unitRef="usd">1243343000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzctMy0xLTEtMA_5a31e1a1-07fa-4709-808c-5322009179c1"
      unitRef="usd">609635000</us-gaap:StockholdersEquity>
    <us-gaap:LiabilitiesAndStockholdersEquity
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzgtMS0xLTEtMA_ef4c3629-8ab9-4371-984d-bef843150482"
      unitRef="usd">3193561000</us-gaap:LiabilitiesAndStockholdersEquity>
    <us-gaap:LiabilitiesAndStockholdersEquity
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xOS9mcmFnOmIwMTIzMTliZDFmNTRhY2M5NWFjYzYzMzVlMzVmNjBmL3RhYmxlOjIyMTMxMmJhMGYzYzQ2OGE4MDRhMmQ4MjdmMzQ5MmNjL3RhYmxlcmFuZ2U6MjIxMzEyYmEwZjNjNDY4YTgwNGEyZDgyN2YzNDkyY2NfMzgtMy0xLTEtMA_cf042797-f651-43f7-847d-aa2b7cdddd18"
      unitRef="usd">2251258000</us-gaap:LiabilitiesAndStockholdersEquity>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMi0xLTEtMS0w_0f11d819-11a5-4fa0-9bd1-8e523b061b88"
      unitRef="usd">198378000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMi0zLTEtMS0w_289f3144-99dc-4ed9-8791-e60d55a259c3"
      unitRef="usd">131590000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:CostOfRevenue
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMy0xLTEtMS0w_5a96f1c9-cf69-4c3b-9855-9d9d375098a7"
      unitRef="usd">71384000</us-gaap:CostOfRevenue>
    <us-gaap:CostOfRevenue
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMy0zLTEtMS0w_3b89ea6c-070e-4583-beb2-d7aeae9559d4"
      unitRef="usd">42390000</us-gaap:CostOfRevenue>
    <us-gaap:GrossProfit
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNC0xLTEtMS0w_931e8574-e115-43cb-9430-76a155774572"
      unitRef="usd">126994000</us-gaap:GrossProfit>
    <us-gaap:GrossProfit
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNC0zLTEtMS0w_4903b4ba-c9fb-4e83-bc24-91f48e15a2b2"
      unitRef="usd">89200000</us-gaap:GrossProfit>
    <us-gaap:ResearchAndDevelopmentExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNi0xLTEtMS0w_3f2cc853-8242-49df-a69b-9acc6d1979b1"
      unitRef="usd">46131000</us-gaap:ResearchAndDevelopmentExpense>
    <us-gaap:ResearchAndDevelopmentExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNi0zLTEtMS0w_04880cf0-f69c-4fdb-98d0-064c20640d88"
      unitRef="usd">39541000</us-gaap:ResearchAndDevelopmentExpense>
    <us-gaap:SellingAndMarketingExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNy0xLTEtMS0w_fd084cd7-cf5a-4b99-81a1-807fa2d5a0c3"
      unitRef="usd">26214000</us-gaap:SellingAndMarketingExpense>
    <us-gaap:SellingAndMarketingExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfNy0zLTEtMS0w_79786a83-0b27-4eb4-b086-f3edca849084"
      unitRef="usd">20238000</us-gaap:SellingAndMarketingExpense>
    <us-gaap:GeneralAndAdministrativeExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfOC0xLTEtMS0w_256e4393-81ae-4281-b94c-95771b1a7f9f"
      unitRef="usd">37870000</us-gaap:GeneralAndAdministrativeExpense>
    <us-gaap:GeneralAndAdministrativeExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfOC0zLTEtMS0w_059d5f56-3404-4a2c-bd6b-93881163ebe2"
      unitRef="usd">26145000</us-gaap:GeneralAndAdministrativeExpense>
    <us-gaap:OperatingExpenses
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTAtMS0xLTEtMA_0e385286-5084-4558-8b92-2bb01f619cea"
      unitRef="usd">110215000</us-gaap:OperatingExpenses>
    <us-gaap:OperatingExpenses
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTAtMy0xLTEtMA_755c5a6a-5b0f-43ff-a152-7143209a21f6"
      unitRef="usd">85924000</us-gaap:OperatingExpenses>
    <us-gaap:OperatingIncomeLoss
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTEtMS0xLTEtMA_19c21fca-c649-4ada-a572-049699548b44"
      unitRef="usd">16779000</us-gaap:OperatingIncomeLoss>
    <us-gaap:OperatingIncomeLoss
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTEtMy0xLTEtMA_1c0cb85a-9830-4db3-abf5-bb8a87bf5b67"
      unitRef="usd">3276000</us-gaap:OperatingIncomeLoss>
    <us-gaap:InterestIncomeExpenseNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTMtMS0xLTEtMA_7ff94c1b-ce64-43f2-bce0-d94342191646"
      unitRef="usd">-1929000</us-gaap:InterestIncomeExpenseNet>
    <us-gaap:InterestIncomeExpenseNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTMtMy0xLTEtMA_95af8bd1-7c69-4a1d-a9bd-47dddd399d67"
      unitRef="usd">-13427000</us-gaap:InterestIncomeExpenseNet>
    <us-gaap:OtherNonoperatingIncomeExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTUtMS0xLTEtMA_d80603e8-4b68-4b78-b0b0-8893fc8d2e14"
      unitRef="usd">-77208000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTUtMy0xLTEtMA_1484a6c0-39e9-4a96-9a2b-bda23ab66d10"
      unitRef="usd">4960000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:NonoperatingIncomeExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTYtMS0xLTEtMA_c46c920d-71e7-473c-830b-8eb97f85f251"
      unitRef="usd">-79137000</us-gaap:NonoperatingIncomeExpense>
    <us-gaap:NonoperatingIncomeExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTYtMy0xLTEtMA_f68982fa-839e-44e0-ae3d-067bd1055cc0"
      unitRef="usd">-8467000</us-gaap:NonoperatingIncomeExpense>
    <us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTctMS0xLTEtMA_2568e01b-f873-41bb-baeb-00ac4c9c5856"
      unitRef="usd">-62358000</us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments>
    <us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTctMy0xLTEtMA_bab51e58-8bc8-4926-b4cd-3c1f4ded5d2f"
      unitRef="usd">-5191000</us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments>
    <us-gaap:IncomeTaxExpenseBenefit
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTgtMS0xLTEtMA_0d21f7c3-80e8-423e-a6aa-4ce3675ecc88"
      unitRef="usd">2821000</us-gaap:IncomeTaxExpenseBenefit>
    <us-gaap:IncomeTaxExpenseBenefit
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTgtMy0xLTEtMA_cdd58dce-067f-4bd4-9297-a7c809446cdb"
      unitRef="usd">522000</us-gaap:IncomeTaxExpenseBenefit>
    <us-gaap:NetIncomeLoss
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTktMS0xLTEtMA_ff73fc9d-4d33-473b-8351-81c4c9c5981e"
      unitRef="usd">-65179000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMTktMy0xLTEtMA_c469d070-6f03-4989-9ac9-131f977b8929"
      unitRef="usd">-5713000</us-gaap:NetIncomeLoss>
    <us-gaap:EarningsPerShareBasicAndDiluted
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjAtMS0xLTEtMA_bc5122bc-a24d-410e-9273-586ed4bf1e78"
      unitRef="usdPerShare">-0.49</us-gaap:EarningsPerShareBasicAndDiluted>
    <us-gaap:EarningsPerShareBasicAndDiluted
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjAtMy0xLTEtMA_4b3a8a2f-535c-42fb-a4eb-7583cecd636e"
      unitRef="usdPerShare">-0.05</us-gaap:EarningsPerShareBasicAndDiluted>
    <us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjMtMS0xLTEtMA_721aeda4-7384-4402-a54f-2228242058c7"
      unitRef="shares">134352000</us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yMi9mcmFnOjAyMTlhYTBiZTAwNTQxMDE4ZTJmOTU5ZWY5MzE4NjU1L3RhYmxlOjY0NDQxZDk0ZmRlYzQ3ODliM2IxNjNjNDA1OTU1NTk2L3RhYmxlcmFuZ2U6NjQ0NDFkOTRmZGVjNDc4OWIzYjE2M2M0MDU5NTU1OTZfMjMtMy0xLTEtMA_cf562aa2-2b7e-4f12-b9f1-e6ef909d2f1f"
      unitRef="shares">122428000</us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <us-gaap:NetIncomeLoss
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfMi0xLTEtMS0w_8ef9b521-146a-452d-bf9c-0f998f76ae4e"
      unitRef="usd">-65179000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfMi0zLTEtMS0w_c469d070-6f03-4989-9ac9-131f977b8929"
      unitRef="usd">-5713000</us-gaap:NetIncomeLoss>
    <us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNC0xLTEtMS0w_b67a49b9-f271-4cd0-a5b0-e3959c8136c7"
      unitRef="usd">-1894000</us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax>
    <us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNC0zLTEtMS0w_9bad8810-3005-4e41-9b0f-693c513e215e"
      unitRef="usd">-3267000</us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax>
    <us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNS0xLTEtMS0w_74e29708-2738-4876-a25f-fe665f35a7df"
      unitRef="usd">-874000</us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax>
    <us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNS0zLTEtMS0w_76408aaf-0033-4426-8bca-c9964908908b"
      unitRef="usd">-999000</us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTax
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNi0xLTEtMS0w_596ec01d-5a77-4ae8-b9b9-f8d21943f039"
      unitRef="usd">-2768000</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTax
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNi0zLTEtMS0w_db324f1a-c6f7-429a-a769-37cbf22edd42"
      unitRef="usd">-4266000</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
    <us-gaap:ComprehensiveIncomeNetOfTax
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNy0xLTEtMS0w_9cf4517b-e764-4928-b7fc-0dc672cc079b"
      unitRef="usd">-67947000</us-gaap:ComprehensiveIncomeNetOfTax>
    <us-gaap:ComprehensiveIncomeNetOfTax
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yNS9mcmFnOjg5OWRlNjVkOTU0ODQ0YTdiOTEwNjMyNWVhYzczYThlL3RhYmxlOjI2MjFlZjllMzI1ZTRjMzdiYWVlMTg2NjY0NGU3NDk3L3RhYmxlcmFuZ2U6MjYyMWVmOWUzMjVlNGMzN2JhZWUxODY2NjQ0ZTc0OTdfNy0zLTEtMS0w_68a6f819-fc8e-473c-b4df-5e4ac7e97f0d"
      unitRef="usd">-9979000</us-gaap:ComprehensiveIncomeNetOfTax>
    <us-gaap:CommonStockSharesOutstanding
      contextRef="i75ce8a2683c347d7a98fdee7717ac65d_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy0xLTEtMS0w_72272246-d7c2-4117-959a-8f3ba0269c94"
      unitRef="shares">129344000</us-gaap:CommonStockSharesOutstanding>
    <us-gaap:StockholdersEquity
      contextRef="i75ce8a2683c347d7a98fdee7717ac65d_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy0zLTEtMS0w_241ee6d0-9619-4736-9896-7f808ae1f60e"
      unitRef="usd">129000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i4d4f387db12e4009bec314d8495f9748_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy01LTEtMS0w_7f2db785-ef7b-42ac-87ee-53e8aa224cc5"
      unitRef="usd">1030577000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ifb4b8ca0211841198d6146d7fe70e467_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy03LTEtMS0w_d1e44d1c-c302-4cd9-8cbb-0f1861a5bc18"
      unitRef="usd">1530000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i890f8d7a70ab4f98844f6f2e9fe0ffa9_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy05LTEtMS0w_721fb138-5e8e-439a-9221-53354e7fdd05"
      unitRef="usd">-422601000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMy0xMS0xLTEtMA_40c14d47-6835-4976-8683-be7bb966e7c6"
      unitRef="usd">609635000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ic5f7018a85dd4c8da3865a618c6adbd0_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNC01LTEtMS0w_99be37e0-604b-4cc6-ba48-4028ee49e089"
      unitRef="usd">-465006000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ie7498e02a2ec444da7609ab9f21e2267_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNC05LTEtMS0w_96e21cab-b375-49d9-9ab0-99602dd62855"
      unitRef="usd">-86868000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i5f911dc362d5417094d4c873132e64b3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNC0xMS0xLTEtMA_460691b8-de6f-4d3d-9f69-7aa0d91bab3d"
      unitRef="usd">-378138000</us-gaap:StockholdersEquity>
    <us-gaap:StockIssuedDuringPeriodSharesNewIssues
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS0xLTEtMS0w_e9d03f51-bcec-48e0-8b1a-e51a3f326d6f"
      unitRef="shares">10975000</us-gaap:StockIssuedDuringPeriodSharesNewIssues>
    <us-gaap:StockIssuedDuringPeriodValueNewIssues
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS0zLTEtMS0w_16177c31-0789-41d0-bf5c-ca8e38989c41"
      unitRef="usd">11000</us-gaap:StockIssuedDuringPeriodValueNewIssues>
    <us-gaap:StockIssuedDuringPeriodValueNewIssues
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS01LTEtMS0w_2626f523-3520-4d5f-bd83-bfada2c3cce5"
      unitRef="usd">1091455000</us-gaap:StockIssuedDuringPeriodValueNewIssues>
    <us-gaap:StockIssuedDuringPeriodValueNewIssues
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNS0xMS0xLTEtMA_72eeb708-8e27-4977-b010-7eda6e5f5d6d"
      unitRef="usd">1091466000</us-gaap:StockIssuedDuringPeriodValueNewIssues>
    <us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNy01LTEtMS01NzY2_f39eb7a6-c4a8-423c-b9f4-b41d902a3fb9"
      unitRef="usd">-11305000</us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt>
    <us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfNy0xMS0xLTEtNTc2Ng_4127fa01-cb98-42fb-a3a3-9d511fdfb556"
      unitRef="usd">-11305000</us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt>
    <us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC0xLTEtMS0w_dcdfebb5-9c5c-4928-bd83-334284d37e70"
      unitRef="shares">126000</us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities>
    <us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC0zLTEtMS0w_87df86a7-d0ee-4dbd-89e4-5bbfcbc73325"
      unitRef="usd">0</us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities>
    <us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC01LTEtMS0w_54cd9d3f-755b-41fa-8341-f134a7290eff"
      unitRef="usd">11237000</us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities>
    <us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOC0xMS0xLTEtMA_a1dd4a59-6f62-4cf1-8384-67e5a02dc696"
      unitRef="usd">11237000</us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities>
    <chgg:AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOS01LTEtMS0w_14c2f581-0ebf-4455-9779-db701738914f"
      unitRef="usd">23577000</chgg:AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall>
    <chgg:AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfOS0xMS0xLTEtMA_4d2420c0-022f-46c0-bf6a-d988bbdc83af"
      unitRef="usd">23577000</chgg:AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall>
    <chgg:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtMS0xLTEtNTc5MA_a4826b08-8223-4b70-b89c-2dce4471de78"
      unitRef="shares">44000</chgg:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised>
    <chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtMy0xLTEtNTc5MA_4179a7b2-d36f-41e4-98d5-bac4568a8d73"
      unitRef="usd">0</chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised>
    <chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtNS0xLTEtNTc5MA_8dd71aaf-8738-45e9-8735-29d15730c483"
      unitRef="usd">346000</chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised>
    <chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTAtMTEtMS0xLTU3OTA_5b1ab2e2-773a-4f94-95b1-7b3e539f0222"
      unitRef="usd">346000</chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised>
    <us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtMS0xLTEtMA_cc8add95-c2e3-4787-946b-3d5e2f87492f"
      unitRef="shares">828000</us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures>
    <us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
      contextRef="i669af89f18c04aab924464fb3a12dda6_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtMy0xLTEtMA_740aed1b-5d12-4698-ad67-ec5c11e355c3"
      unitRef="usd">1000</us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures>
    <us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtNS0xLTEtMA_af147cb1-5582-4906-bc44-9493fce7f0ac"
      unitRef="usd">-59176000</us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures>
    <us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTEtMTEtMS0xLTA_efc8f781-b11a-4955-a415-707e32b6bd33"
      unitRef="usd">-59175000</us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures>
    <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
      contextRef="i26a0413e2d00415aa8d4b284cee21026_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTMtNS0xLTEtMA_9f2f4ae0-663d-4eef-afe2-0d37d9d3757f"
      unitRef="usd">23647000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
    <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTMtMTEtMS0xLTA_b89ddeba-2514-48c4-8af4-a4bb475e5b5d"
      unitRef="usd">23647000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="i15f99d6225a1475dabfcbfe681ae6a0d_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTQtNy0xLTEtMA_d2dab88f-d372-48a8-a819-06baa6d01b55"
      unitRef="usd">-2768000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTQtMTEtMS0xLTA_9c59507f-e95f-4c2c-8094-c7088a595995"
      unitRef="usd">-2768000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:NetIncomeLoss
      contextRef="i821c84575341489b8a596c5a03fd77fd_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTUtOS0xLTEtMA_0c82e1a9-ea76-4542-8900-7725ae35d6ea"
      unitRef="usd">-65179000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTUtMTEtMS0xLTA_059cbe98-5a18-4d2b-94d8-4f7169dce24f"
      unitRef="usd">-65179000</us-gaap:NetIncomeLoss>
    <us-gaap:CommonStockSharesOutstanding
      contextRef="iacd285b7d6e34c16a7d58fce687179e9_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtMS0xLTEtMA_4b231e58-fa06-4e58-baae-8262e3c76b12"
      unitRef="shares">141317000</us-gaap:CommonStockSharesOutstanding>
    <us-gaap:StockholdersEquity
      contextRef="iacd285b7d6e34c16a7d58fce687179e9_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtMy0xLTEtMA_d71adfc6-aa34-4054-be53-35274d5f7336"
      unitRef="usd">141000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ie8ee3c40e8634abe852a1d56c23ce159_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtNS0xLTEtMA_670dac7f-b133-4b84-9c51-1b9fbdf805ac"
      unitRef="usd">1645352000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i7aaa64aa124644c7838caa74841e6d21_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtNy0xLTEtMA_c17faf99-105e-4d4b-b5c9-9e57eb5c96c2"
      unitRef="usd">-1238000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i7c8ffa9e6abe4879b6ee30c9c3c28132_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtOS0xLTEtMA_5a4b2c14-0255-4bff-8a33-6147fa515aa1"
      unitRef="usd">-400912000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjE5MDg5NTE5NGEzZDQ1ZjA4YjUxZjQ1ZTFiNDMwMWJkL3RhYmxlcmFuZ2U6MTkwODk1MTk0YTNkNDVmMDhiNTFmNDVlMWI0MzAxYmRfMTYtMTEtMS0xLTA_01a9aaf2-88a4-480f-9a1c-53ff422bfa42"
      unitRef="usd">1243343000</us-gaap:StockholdersEquity>
    <us-gaap:CommonStockSharesOutstanding
      contextRef="ia37ef2d2a7f7485b8572cd1094d91041_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy0xLTEtMS0w_8cefd530-85a9-4e4d-8f69-dccb17856fc9"
      unitRef="shares">121584000</us-gaap:CommonStockSharesOutstanding>
    <us-gaap:StockholdersEquity
      contextRef="ia37ef2d2a7f7485b8572cd1094d91041_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy0zLTEtMS0w_f06adde7-e042-4e44-abea-fd5e50ab6944"
      unitRef="usd">122000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i20920cf767dd4f03bff13d94454084d5_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy01LTEtMS0w_3bf635b9-acb3-4a3b-aa1f-629285b3a011"
      unitRef="usd">916095000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="id87c44d70bb1487f8c695508be494317_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy03LTEtMS0w_e1edd5b1-4d5f-4b85-bef9-3c0d1e09fa21"
      unitRef="usd">-1096000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i557017987f1343b8adcb952c82c275e2_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy05LTEtMS0w_7eaa8995-8466-4375-9361-dc655fe5a2fd"
      unitRef="usd">-416292000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i5bf00fd4408e491f9fcf190d7b6e322d_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMy0xMS0xLTEtMA_05afa07c-8053-471a-b3e8-c2adeff655a2"
      unitRef="usd">498829000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i625eb39f43a24c1f99c2b239ffde49d3_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC05LTEtMS0w_23b6620b-82a2-4414-8741-96a2d6864b7b"
      unitRef="usd">-88000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i960217c9810e4a08921d0096f8bc7662_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfNC0xMS0xLTEtMA_b05975ae-ae93-4acc-847b-7355c91199fe"
      unitRef="usd">-88000</us-gaap:StockholdersEquity>
    <chgg:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC0xLTEtMS0w_167b0500-c964-4b41-9cbe-a1ce5f48bcca"
      unitRef="shares">360000</chgg:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised>
    <chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC0zLTEtMS0w_41eb08e6-c241-4051-9cd4-350fc68a7ed3"
      unitRef="usd">0</chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised>
    <chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="i910720ad46e84482856553bcc2f26dee_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC01LTEtMS0w_3a330a25-2a11-424a-8f28-c21afa20971e"
      unitRef="usd">2665000</chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised>
    <chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOC0xMS0xLTEtMA_d9d976a5-2324-442d-9725-d8d0add340ae"
      unitRef="usd">2665000</chgg:StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised>
    <us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
      contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS0xLTEtMS0w_00290805-213f-4814-8c3e-c51f0bb3e43f"
      unitRef="shares">1599000</us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures>
    <us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
      contextRef="i44d9e449cb074c1e8d9cceeeb45734cc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS0zLTEtMS0w_d0adaaeb-0092-4693-a67e-df94ac231735"
      unitRef="usd">2000</us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures>
    <us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
      contextRef="i910720ad46e84482856553bcc2f26dee_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS01LTEtMS0w_b0c6e8d3-8e55-4fcc-bbb1-6f0ce9cb7f0a"
      unitRef="usd">-46836000</us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures>
    <us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfOS0xMS0xLTEtMA_28600132-b2b2-4e63-a212-152476597756"
      unitRef="usd">-46834000</us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures>
    <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
      contextRef="i910720ad46e84482856553bcc2f26dee_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTEtNS0xLTEtMA_6fe12955-9ccd-4cef-8f98-34b2ef29b40a"
      unitRef="usd">18334000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
    <us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTEtMTEtMS0xLTA_66805f91-b30c-4ca0-8974-bbf2d7b1467a"
      unitRef="usd">18334000</us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="id2073e9f1c574622b6e40d4ecbe419cc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTItNy0xLTEtMA_dc2a113d-1419-4924-be49-81518a85edcb"
      unitRef="usd">-4266000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTItMTEtMS0xLTA_7fdcb150-ab92-4e51-855b-59daeb88afc2"
      unitRef="usd">-4266000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:NetIncomeLoss
      contextRef="i346ce45453a246f9964ac39e132492d5_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTMtOS0xLTEtMA_e95b94df-2f57-4d74-9d5a-31e371eed830"
      unitRef="usd">-5713000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTMtMTEtMS0xLTA_20d23a40-5c5e-4953-b3d0-1a7e85b76908"
      unitRef="usd">-5713000</us-gaap:NetIncomeLoss>
    <us-gaap:CommonStockSharesOutstanding
      contextRef="i2b19887b2de84de9806daf4ce7a4aecd_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtMS0xLTEtMA_23eac20b-f98c-4744-82ba-8107710cc551"
      unitRef="shares">123543000</us-gaap:CommonStockSharesOutstanding>
    <us-gaap:StockholdersEquity
      contextRef="i2b19887b2de84de9806daf4ce7a4aecd_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtMy0xLTEtMA_a9148e6f-3f0f-4b52-8555-eac9e04d6b71"
      unitRef="usd">124000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ib22efcd6cb7548278c203ebdbadacaa5_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtNS0xLTEtMA_523ec317-962e-47c8-ba65-fc70faf6333e"
      unitRef="usd">890258000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ib53e4c359806482ea0551651dd14ca2e_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtNy0xLTEtMA_2b5d1497-6efa-4b31-a6ab-18d0cc47706f"
      unitRef="usd">-5362000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="if216661a3c3b440d8fc41ee83780b4cc_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtOS0xLTEtMA_641beb82-cf51-4858-a0b2-eaa21d97eda9"
      unitRef="usd">-422093000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8yOC9mcmFnOjNjNGM1Mjk0YTllZjQ4OGU4ZWUxYjAzMzY4OTU5ZmI0L3RhYmxlOjI0NGM5OWRmNGIzYjQ2OTZiNWQ0NWI1Yjk2NzhkMGIxL3RhYmxlcmFuZ2U6MjQ0Yzk5ZGY0YjNiNDY5NmI1ZDQ1YjViOTY3OGQwYjFfMTQtMTEtMS0xLTA_bdcd0f66-e2a1-4485-b931-011ee920ab5c"
      unitRef="usd">462927000</us-gaap:StockholdersEquity>
    <us-gaap:NetIncomeLoss
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMy0xLTEtMS0w_b935a8a7-ccec-44b1-8607-f27b562caf3a"
      unitRef="usd">-65179000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMy0zLTEtMS0w_669d64aa-4c84-414d-8239-b0c670b44bfd"
      unitRef="usd">-5713000</us-gaap:NetIncomeLoss>
    <chgg:DepreciationTextbookLibrary
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNS0xLTEtMS0w_59b35b85-d59a-415d-9512-8942420b2921"
      unitRef="usd">3760000</chgg:DepreciationTextbookLibrary>
    <chgg:DepreciationTextbookLibrary
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNS0zLTEtMS0w_e6e9aacf-ede1-4ddd-86f5-fee7b9c69640"
      unitRef="usd">3527000</chgg:DepreciationTextbookLibrary>
    <us-gaap:OtherDepreciationAndAmortization
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNi0xLTEtMS0w_d25f244b-7043-41f0-aee8-54b2c66163e1"
      unitRef="usd">14846000</us-gaap:OtherDepreciationAndAmortization>
    <us-gaap:OtherDepreciationAndAmortization
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNi0zLTEtMS0w_5b81c97c-83d3-4a28-b750-0ec72d1fae49"
      unitRef="usd">9243000</us-gaap:OtherDepreciationAndAmortization>
    <us-gaap:ShareBasedCompensation
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNy0xLTEtMS0w_e75ecbaf-777f-41cd-9be3-f5127edf8083"
      unitRef="usd">23100000</us-gaap:ShareBasedCompensation>
    <us-gaap:ShareBasedCompensation
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNy0zLTEtMS0w_27ee10f7-b3ce-44a4-b76d-958d0b1b5d5c"
      unitRef="usd">18334000</us-gaap:ShareBasedCompensation>
    <us-gaap:AmortizationOfFinancingCostsAndDiscounts
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfOC0xLTEtMS0w_5642620f-0911-4e4b-b17d-cc9b90a25a30"
      unitRef="usd">1626000</us-gaap:AmortizationOfFinancingCostsAndDiscounts>
    <us-gaap:AmortizationOfFinancingCostsAndDiscounts
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfOC0zLTEtMS0w_94c66fac-7c26-4edc-a652-093f3a2dddcf"
      unitRef="usd">12946000</us-gaap:AmortizationOfFinancingCostsAndDiscounts>
    <us-gaap:GainsLossesOnExtinguishmentOfDebt
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTAtMS0xLTEtMA_eec24a9b-9d67-44df-9553-743c64766d09"
      unitRef="usd">-78152000</us-gaap:GainsLossesOnExtinguishmentOfDebt>
    <us-gaap:GainsLossesOnExtinguishmentOfDebt
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTAtMy0xLTEtMA_f206280d-3c59-4666-94a3-34544e9271ea"
      unitRef="usd">0</us-gaap:GainsLossesOnExtinguishmentOfDebt>
    <us-gaap:DerivativeGainLossOnDerivativeNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMS0xLTEtMTM1_eaa05c1e-47a7-4d49-b766-1f6f6134bde2"
      unitRef="usd">-7148000</us-gaap:DerivativeGainLossOnDerivativeNet>
    <us-gaap:DerivativeGainLossOnDerivativeNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMy0xLTEtMTM1_61fcb066-9f82-443b-b243-6797c2a68ca3"
      unitRef="usd">0</us-gaap:DerivativeGainLossOnDerivativeNet>
    <us-gaap:GainLossOnSaleOfPropertyPlantEquipment
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMS0xLTEtMA_65ec2697-5fd5-4761-81e5-ad12a17d33a4"
      unitRef="usd">-757000</us-gaap:GainLossOnSaleOfPropertyPlantEquipment>
    <us-gaap:GainLossOnSaleOfPropertyPlantEquipment
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTEtMy0xLTEtMA_b5f41450-97df-4c81-a8cc-a9848a54438f"
      unitRef="usd">0</us-gaap:GainLossOnSaleOfPropertyPlantEquipment>
    <us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTQtMS0xLTEtNzkxMw_fc2801d5-1409-4f6f-beec-0b194c5a66d3"
      unitRef="usd">5338000</us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal>
    <us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTQtMy0xLTEtNzkxMw_0d5960d6-8c61-4fe8-bb9e-7e00cdafd9f2"
      unitRef="usd">0</us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal>
    <chgg:TextbookLibraryGainLossNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTMtMS0xLTEtMA_7da400c2-058c-4ce6-9723-85db2aae1d09"
      unitRef="usd">-4028000</chgg:TextbookLibraryGainLossNet>
    <chgg:TextbookLibraryGainLossNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTMtMy0xLTEtMA_30793a62-19f7-4fad-9597-5153e45acd51"
      unitRef="usd">1175000</chgg:TextbookLibraryGainLossNet>
    <us-gaap:OperatingLeaseCost
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTUtMS0xLTEtMA_67fa0277-dd01-40a0-8b5b-c347a067082c"
      unitRef="usd">1589000</us-gaap:OperatingLeaseCost>
    <us-gaap:OperatingLeaseCost
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTUtMy0xLTEtMA_a6791d69-6091-4552-891f-993a57aae4d6"
      unitRef="usd">1053000</us-gaap:OperatingLeaseCost>
    <us-gaap:OtherNoncashIncomeExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTYtMS0xLTEtMA_8a9106b2-42fb-4b00-a844-f090c54e1743"
      unitRef="usd">-87000</us-gaap:OtherNoncashIncomeExpense>
    <us-gaap:OtherNoncashIncomeExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTYtMy0xLTEtMA_2450fd87-caab-4a4b-acdc-72df29546e0d"
      unitRef="usd">312000</us-gaap:OtherNoncashIncomeExpense>
    <us-gaap:IncreaseDecreaseInAccountsReceivable
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTgtMS0xLTEtMA_32c7870e-6b2f-4749-bc7f-0b8b07c9c92d"
      unitRef="usd">-2240000</us-gaap:IncreaseDecreaseInAccountsReceivable>
    <us-gaap:IncreaseDecreaseInAccountsReceivable
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTgtMy0xLTEtMA_7491ab5b-057c-4f29-8170-716b38f4da99"
      unitRef="usd">-4929000</us-gaap:IncreaseDecreaseInAccountsReceivable>
    <us-gaap:IncreaseDecreaseInPrepaidExpensesOther
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTktMS0xLTEtMA_1f2068ee-79b1-47c3-a20e-567e0af70641"
      unitRef="usd">25075000</us-gaap:IncreaseDecreaseInPrepaidExpensesOther>
    <us-gaap:IncreaseDecreaseInPrepaidExpensesOther
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMTktMy0xLTEtMA_093ce7fe-34e9-4580-8720-e1063457941d"
      unitRef="usd">9707000</us-gaap:IncreaseDecreaseInPrepaidExpensesOther>
    <us-gaap:IncreaseDecreaseInOtherOperatingAssets
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjAtMS0xLTEtMA_8690ce2f-7b6a-41e6-a08e-746625189c69"
      unitRef="usd">-1058000</us-gaap:IncreaseDecreaseInOtherOperatingAssets>
    <us-gaap:IncreaseDecreaseInOtherOperatingAssets
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjAtMy0xLTEtMA_84a3c989-6dfe-456e-8db9-69895097d6e8"
      unitRef="usd">1425000</us-gaap:IncreaseDecreaseInOtherOperatingAssets>
    <us-gaap:IncreaseDecreaseInAccountsPayable
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjEtMS0xLTEtMA_fae49d68-0278-447e-bba0-955ca3860a82"
      unitRef="usd">6597000</us-gaap:IncreaseDecreaseInAccountsPayable>
    <us-gaap:IncreaseDecreaseInAccountsPayable
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjEtMy0xLTEtMA_2c6dae2a-3361-4e18-8c07-34cd3d2c2535"
      unitRef="usd">-436000</us-gaap:IncreaseDecreaseInAccountsPayable>
    <us-gaap:IncreaseDecreaseInDeferredRevenue
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjItMS0xLTEtMA_7fdb3c0a-146b-4ec3-9ae7-2e0394d5843d"
      unitRef="usd">15988000</us-gaap:IncreaseDecreaseInDeferredRevenue>
    <us-gaap:IncreaseDecreaseInDeferredRevenue
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjItMy0xLTEtMA_f3096d65-be84-4919-a058-e4ed61ac636f"
      unitRef="usd">16973000</us-gaap:IncreaseDecreaseInDeferredRevenue>
    <us-gaap:IncreaseDecreaseInAccruedLiabilities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjMtMS0xLTEtMA_82bf6c76-ed75-4445-b6b7-b0b7bf3a9932"
      unitRef="usd">9386000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
    <us-gaap:IncreaseDecreaseInAccruedLiabilities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjMtMy0xLTEtMA_73503ead-15b2-4e0f-b3ee-c63a80d96274"
      unitRef="usd">15972000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
    <us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjQtMS0xLTEtMA_a008c033-4130-40bb-9d19-06cb35dcbe7f"
      unitRef="usd">-1197000</us-gaap:IncreaseDecreaseInOtherOperatingLiabilities>
    <us-gaap:IncreaseDecreaseInOtherOperatingLiabilities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjQtMy0xLTEtMA_2ffb6cd7-418a-4ae2-b7b4-44bfe6a7d2af"
      unitRef="usd">-1242000</us-gaap:IncreaseDecreaseInOtherOperatingLiabilities>
    <us-gaap:NetCashProvidedByUsedInOperatingActivities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjUtMS0xLTEtMA_bf1a5f6a-ac41-46b6-85ad-eb8c60150b9b"
      unitRef="usd">73573000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
    <us-gaap:NetCashProvidedByUsedInOperatingActivities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjUtMy0xLTEtMA_91b7e86f-135f-4505-9d5f-d008d9ba95dd"
      unitRef="usd">62967000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
    <us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjctMS0xLTEtMA_6149fc4b-5cd9-480a-a381-a7d26bfcf6a2"
      unitRef="usd">18984000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
    <us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjctMy0xLTEtMA_a27d4377-0b2f-401f-bb56-e94c0fa4f538"
      unitRef="usd">19965000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
    <chgg:PaymentToPurchasesTextbooks
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjgtMS0xLTEtMA_eca85b61-72da-41de-860c-85340e41136a"
      unitRef="usd">4527000</chgg:PaymentToPurchasesTextbooks>
    <chgg:PaymentToPurchasesTextbooks
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjgtMy0xLTEtMA_3c974705-be1b-4951-9787-2cbea8905266"
      unitRef="usd">36830000</chgg:PaymentToPurchasesTextbooks>
    <chgg:ProceedsFromDispositionOfTextbooks
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjktMS0xLTEtMA_c507d271-ca92-46ba-b3db-5a2ce4b279da"
      unitRef="usd">4038000</chgg:ProceedsFromDispositionOfTextbooks>
    <chgg:ProceedsFromDispositionOfTextbooks
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMjktMy0xLTEtMA_ce9aca41-432d-4a10-bfdc-9768cbdee586"
      unitRef="usd">2170000</chgg:ProceedsFromDispositionOfTextbooks>
    <us-gaap:PaymentsToAcquireMarketableSecurities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzAtMS0xLTEtMA_c9aac075-dcd3-47a6-bfed-14e73a071e1a"
      unitRef="usd">925748000</us-gaap:PaymentsToAcquireMarketableSecurities>
    <us-gaap:PaymentsToAcquireMarketableSecurities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzAtMy0xLTEtMA_aab3e369-f768-45fe-9acd-f89e2a08585a"
      unitRef="usd">112421000</us-gaap:PaymentsToAcquireMarketableSecurities>
    <us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzItMS0xLTEtMA_61586708-b73f-44eb-8525-b8a31a4bb2a1"
      unitRef="usd">181315000</us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities>
    <us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzItMy0xLTEtMA_35ac52b0-4e60-482f-9b25-f2dc7cfa16bf"
      unitRef="usd">121784000</us-gaap:ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities>
    <us-gaap:PaymentsToAcquireEquityMethodInvestments
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzMtMS0xLTEtMA_95cdd1b0-3c2d-4f09-ae7c-3cf174fe43f0"
      unitRef="usd">0</us-gaap:PaymentsToAcquireEquityMethodInvestments>
    <us-gaap:PaymentsToAcquireEquityMethodInvestments
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzMtMy0xLTEtMA_ba9c1ca2-990a-4954-8795-455a8e1e9c4c"
      unitRef="usd">2000000</us-gaap:PaymentsToAcquireEquityMethodInvestments>
    <us-gaap:ProceedsFromSaleOfEquityMethodInvestments
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMS0xLTEtNzkyMA_e0604e44-62b1-4fb2-a0d8-cec7f16fd27a"
      unitRef="usd">6845000</us-gaap:ProceedsFromSaleOfEquityMethodInvestments>
    <us-gaap:ProceedsFromSaleOfEquityMethodInvestments
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMy0xLTEtNzkyMA_68c9e5eb-cf15-4295-a8a1-94102b6ad020"
      unitRef="usd">0</us-gaap:ProceedsFromSaleOfEquityMethodInvestments>
    <us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzQtMS0xLTEtMA_e27be983-652a-4ffd-94bd-e9ae24d7983a"
      unitRef="usd">7891000</us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired>
    <us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzQtMy0xLTEtMA_b20a6cf5-07ae-447b-b5dc-fc0173fa7116"
      unitRef="usd">0</us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired>
    <us-gaap:NetCashProvidedByUsedInInvestingActivities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzUtMS0xLTEtMA_3acdbeda-35d0-4522-bca5-d58a255ac655"
      unitRef="usd">-764952000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
    <us-gaap:NetCashProvidedByUsedInInvestingActivities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzUtMy0xLTEtMA_5028a340-f7a6-4662-b105-78a10182e6d9"
      unitRef="usd">-47262000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
    <chgg:ProceedsFromIssuanceOfEmployeeStockPurchasePlan
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMS0xLTEtMA_b3d076b1-799b-485d-849f-cbc6c45642fa"
      unitRef="usd">347000</chgg:ProceedsFromIssuanceOfEmployeeStockPurchasePlan>
    <chgg:ProceedsFromIssuanceOfEmployeeStockPurchasePlan
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzctMy0xLTEtMA_d6522d45-476b-46eb-8eec-d58e0b550375"
      unitRef="usd">2667000</chgg:ProceedsFromIssuanceOfEmployeeStockPurchasePlan>
    <us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzgtMS0xLTEtMA_6c5f8932-0f7d-42f8-a59e-7c1c6f6e79fc"
      unitRef="usd">59176000</us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation>
    <us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfMzgtMy0xLTEtMA_52c68ea5-a860-4705-b50f-066f2849266c"
      unitRef="usd">46836000</us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation>
    <us-gaap:ProceedsFromIssuanceOfCommonStock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMS0xLTEtNzkyNg_efd8b01e-03cb-4cd9-a8ff-f1274168a8cd"
      unitRef="usd">1091466000</us-gaap:ProceedsFromIssuanceOfCommonStock>
    <us-gaap:ProceedsFromIssuanceOfCommonStock
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMy0xLTEtNzkyNg_a9c2f001-2d99-40f2-b87a-48564832ad84"
      unitRef="usd">0</us-gaap:ProceedsFromIssuanceOfCommonStock>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDEtMS0xLTEtMA_2d0d354c-0268-49c5-b3b2-265d10c7c339"
      unitRef="usd">189849000</us-gaap:RepaymentsOfConvertibleDebt>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDEtMy0xLTEtMA_4ecdc858-42fc-4644-8782-4a3eddf5409b"
      unitRef="usd">0</us-gaap:RepaymentsOfConvertibleDebt>
    <us-gaap:ProceedsFromConvertibleDebt
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDItMS0xLTEtMA_3d2d8467-770f-4989-ab13-4a7ea8a326c0"
      unitRef="usd">24812000</us-gaap:ProceedsFromConvertibleDebt>
    <us-gaap:ProceedsFromConvertibleDebt
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDItMy0xLTEtMA_d38ed9f6-2f82-4b30-86c6-8ca213fc0f85"
      unitRef="usd">0</us-gaap:ProceedsFromConvertibleDebt>
    <us-gaap:NetCashProvidedByUsedInFinancingActivities
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDQtMS0xLTEtMA_b9d8265e-72fa-4c4f-b165-6d2eb5b30688"
      unitRef="usd">867600000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
    <us-gaap:NetCashProvidedByUsedInFinancingActivities
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDQtMy0xLTEtMA_dc2d9b23-392e-434c-ad39-5c3f152be48a"
      unitRef="usd">-44169000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMS0xLTEtMA_0abb80ac-0d25-41ba-af09-4828008180a9"
      unitRef="usd">176221000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDUtMy0xLTEtMA_5fed1245-1a27-4767-8f67-a8db603ac1e5"
      unitRef="usd">-28464000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDYtMS0xLTEtMA_99d91e34-017a-49f3-8aef-9d8d15971784"
      unitRef="usd">481715000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i5bf00fd4408e491f9fcf190d7b6e322d_I20191231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDYtMy0xLTEtMA_913e55a2-e2f8-43ea-8ece-cc40e3c10220"
      unitRef="usd">389432000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDctMS0xLTEtMA_72d96a8a-9afd-42ae-b47b-b6923e75180e"
      unitRef="usd">657936000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjM0ZDg3NWFkMzRhNTQ2Nzc4YWRlMmFiNWI5YjA3NDVmL3RhYmxlcmFuZ2U6MzRkODc1YWQzNGE1NDY3NzhhZGUyYWI1YjliMDc0NWZfNDctMy0xLTEtMA_96aa2259-1c37-41e9-8a6a-b9d5e78edf3d"
      unitRef="usd">360968000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:InterestPaidNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNC0xLTEtMS0w_93a0fc20-54ea-4279-af67-77eb3c50fd0c"
      unitRef="usd">502000</us-gaap:InterestPaidNet>
    <us-gaap:InterestPaidNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNC0zLTEtMS0w_fe5521bb-b428-4005-b5e6-75d7864d28be"
      unitRef="usd">500000</us-gaap:InterestPaidNet>
    <us-gaap:IncomeTaxesPaidNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNS0xLTEtMS0w_6f38a6ea-0833-414e-a423-f984bfd0443a"
      unitRef="usd">3063000</us-gaap:IncomeTaxesPaidNet>
    <us-gaap:IncomeTaxesPaidNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNS0zLTEtMS0w_480d13e9-5d92-49a8-9d3c-da13aee213c6"
      unitRef="usd">756000</us-gaap:IncomeTaxesPaidNet>
    <us-gaap:OperatingLeasePayments
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNy0xLTEtMS0w_84179c85-e151-46bb-9520-05db5c52b02d"
      unitRef="usd">1998000</us-gaap:OperatingLeasePayments>
    <us-gaap:OperatingLeasePayments
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfNy0zLTEtMS0w_48e193c5-61aa-4897-b736-876893832972"
      unitRef="usd">1572000</us-gaap:OperatingLeasePayments>
    <us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTEtMS0xLTEtMA_abb5d7d2-b7a6-4592-adb3-c5e8757a3042"
      unitRef="usd">904000</us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1>
    <us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTEtMy0xLTEtMA_56b684ec-d8c5-497d-b330-84a3105076c0"
      unitRef="usd">8020000</us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1>
    <chgg:StockIssuedRepaymentForConvertibleSeniorNotes
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTQtMS0xLTEtMA_95e99a30-1db8-4ae0-a989-bf634e206cc6"
      unitRef="usd">11237000</chgg:StockIssuedRepaymentForConvertibleSeniorNotes>
    <chgg:StockIssuedRepaymentForConvertibleSeniorNotes
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOjhmNGM1MGI0ZjJiZjQ2MzdiYjI2YTExM2EwYjkwNGZjL3RhYmxlcmFuZ2U6OGY0YzUwYjRmMmJmNDYzN2JiMjZhMTEzYTBiOTA0ZmNfMTQtMy0xLTEtMA_8a074556-cc51-4b1e-ad75-a94b1f57d77d"
      unitRef="usd">0</chgg:StockIssuedRepaymentForConvertibleSeniorNotes>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfMy0xLTEtMS0w_704a6d3c-221c-4bab-b428-c9b9f0b3923e"
      unitRef="usd">656168000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
      contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfMy0zLTEtMS0w_41f483b3-7622-4981-aee3-8de85d5d4f39"
      unitRef="usd">359101000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNC0xLTEtMS0w_9456c545-7057-4d17-9574-16adbd0161ea"
      unitRef="usd">38000</us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
      contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNC0zLTEtMS0w_24b63382-8626-4fa3-98b7-94b95ce314a3"
      unitRef="usd">306000</us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsNoncurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNS0xLTEtMS0w_3ca62847-5935-490a-9fb9-7890de5c3301"
      unitRef="usd">1730000</us-gaap:RestrictedCashAndCashEquivalentsNoncurrent>
    <us-gaap:RestrictedCashAndCashEquivalentsNoncurrent
      contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNS0zLTEtMS0w_5abe4b96-1159-476f-9480-54ec2e94e110"
      unitRef="usd">1561000</us-gaap:RestrictedCashAndCashEquivalentsNoncurrent>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNi0xLTEtMS0w_22f73730-5540-45d8-9ec9-e933fb106345"
      unitRef="usd">657936000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i59272a2c297443db9be5d670aeaafee6_I20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zMS9mcmFnOmJmZGNhM2YxODRmMTQ5N2RiZGYzODRhMzM5MWQ2ZmFmL3RhYmxlOmQ5ZjlhN2FjZjdjZjQ3NTA5MmY5YzI1NWIwN2Y4YzdmL3RhYmxlcmFuZ2U6ZDlmOWE3YWNmN2NmNDc1MDkyZjljMjU1YjA3ZjhjN2ZfNi0zLTEtMS0w_b6186cc7-b83a-4b3b-acb4-92c3c3a0a7b0"
      unitRef="usd">360968000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMyODc_6d77c870-d7d2-426e-b0f0-02b883e4be99">Background and Basis of Presentation&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Company and Background&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Chegg, Inc. (Chegg, the Company, we, us, or our), headquartered in Santa Clara, California, was incorporated as a Delaware corporation in July&#160;2005.&#160;Chegg is A Smarter Way to Student&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%"&gt;&#xae;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;. We strive to improve educational outcomes by putting the student first. We support students on their journey from high school to college and into their career with tools designed to help them learn their course materials, succeed in their classes, save money on required materials, and learn the most in-demand skills. Our services are available online, anytime and anywhere. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Basis of Presentation&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The accompanying condensed consolidated balance sheet as of&#160;March&#160;31, 2021, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive loss, the condensed consolidated statements of stockholder's equity, and the condensed consolidated statements of cash flows for the three months ended March 31, 2021 and 2020, and the related footnote disclosures are unaudited. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of&#160;March&#160;31, 2021, our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the three months ended March 31, 2021 and 2020. Our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the&#160;three months ended&#160;March&#160;31, 2021&#160;are not necessarily indicative of the results to be expected for the full year.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We operate in a single segment. Our fiscal year ends on December&#160;31 and in this report we refer to the year ended&#160;December&#160;31, 2020&#160;as&#160;2020.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended&#160;December&#160;31, 2020&#160;(the Annual Report on Form 10-K) filed with the U.S. Securities and Exchange Commission (SEC).&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Except for our policies on convertible senior notes, net, share-based compensation expense, and net loss per share, there have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K. Our policies on convertible senior notes, net and net loss per share were updated as a result of our adoption of Accounting Standards Update (ASU) 2020-06, &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Accounting for Convertible Instruments and Contracts in an Entity's Own Equity&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; on January 1, 2021 under the modified retrospective method. For further information on ASU 2020-06, see the section below titled &#x201c;Recent Accounting Pronouncements&#x201d; of this Note 1, &#x201c;Background and Basis of Presentation.&#x201d;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Convertible Senior Notes, net&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $700 million in aggregate principal amount of&#160;0.125%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total gross proceeds of $800 million. In April 2018, we issued&#160;$345 million in aggregate principal amount of&#160;0.25%&#160;convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the &#x201c;notes.&#x201d; The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our condensed consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our condensed consolidated balance sheets. In accounting for &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our condensed consolidated statements of operations.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Share-based Compensation Expense&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial performance targets is measured based on the closing fair market value of the Company&#x2019;s common stock, PSUs with a market-based condition is estimated using a Monte Carlo simulation model, and the ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense, subject to continuing service over the requisite service period, which is generally the vesting period, on a straight-line basis for RSUs and the ESPP and on a graded basis for PSUs. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Net Loss Per Share&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. Diluted net loss per share assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later).&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Use of Estimates&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management&#x2019;s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations. Except for estimates related to the grant-date fair value of PSUs with a market-based condition, there have been no material changes in our use of estimates during the&#160;three months ended March 31, 2021&#160;as compared to the use of estimates disclosed in Part II, Item 8 &#x201c;Consolidated Financial Statements and Supplementary Data&#x201d; contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2020.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Reclassification of Prior Period Presentation&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In order to conform with current period presentation, $6.6&#160;million of current operating lease liabilities have been reclassified to accrued liabilities on our condensed consolidated balance sheet as of December&#160;31, 2020. This change in presentation does not affect previously reported results.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Condensed Consolidated Statements of Operations Details&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Other (expense) income, net consists of the following (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Loss on early extinguishment of debt&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(78,152)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Loss on change in fair value of derivative instruments, net&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(7,148)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Gain on sale of strategic equity investment&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;5,338&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Interest income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,049&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,856&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;705&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;104&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:11.25pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total other (expense) income, net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(77,208)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,960&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; For further information, see Note 7,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Convertible Senior Notes.&#x201d;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; For further information, see Note 4,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Cash and Cash Equivalents, and Investments.&#x201d;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Recent Accounting Pronouncements&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Recently Issued Accounting Pronouncements Not Yet Adopted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;There were no accounting pronouncements issued during the three months ended March 31, 2021 that would have an impact on our financial statements.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Recently Adopted Accounting Pronouncements&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Accounting for Convertible Instruments and Contracts in an Entity's Own Equity&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;. ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Debt - Debt with Conversion and Other Options&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $378.1&#160;million and a decrease to additional paid-in capital of $465.0 million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $86.9 million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 7,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Convertible Senior Notes&#x201d; for more information.&lt;/span&gt;&lt;/div&gt;</us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock>
    <us-gaap:BasisOfAccountingPolicyPolicyTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMyOTg_89dca965-e2c6-4880-ad41-8f5679b5b496">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Basis of Presentation&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The accompanying condensed consolidated balance sheet as of&#160;March&#160;31, 2021, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive loss, the condensed consolidated statements of stockholder's equity, and the condensed consolidated statements of cash flows for the three months ended March 31, 2021 and 2020, and the related footnote disclosures are unaudited. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of&#160;March&#160;31, 2021, our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the three months ended March 31, 2021 and 2020. Our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the&#160;three months ended&#160;March&#160;31, 2021&#160;are not necessarily indicative of the results to be expected for the full year.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We operate in a single segment. Our fiscal year ends on December&#160;31 and in this report we refer to the year ended&#160;December&#160;31, 2020&#160;as&#160;2020.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended&#160;December&#160;31, 2020&#160;(the Annual Report on Form 10-K) filed with the U.S. Securities and Exchange Commission (SEC).&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Except for our policies on convertible senior notes, net, share-based compensation expense, and net loss per share, there have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K. Our policies on convertible senior notes, net and net loss per share were updated as a result of our adoption of Accounting Standards Update (ASU) 2020-06, &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Accounting for Convertible Instruments and Contracts in an Entity's Own Equity&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; on January 1, 2021 under the modified retrospective method. For further information on ASU 2020-06, see the section below titled &#x201c;Recent Accounting Pronouncements&#x201d; of this Note 1, &#x201c;Background and Basis of Presentation.&#x201d;&lt;/span&gt;&lt;/div&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
    <us-gaap:DebtPolicyTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMzMjk_3dc77785-f341-4a36-99c3-10a393b7f160">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Convertible Senior Notes, net&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $700 million in aggregate principal amount of&#160;0.125%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total gross proceeds of $800 million. In April 2018, we issued&#160;$345 million in aggregate principal amount of&#160;0.25%&#160;convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the &#x201c;notes.&#x201d; The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our condensed consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our condensed consolidated balance sheets. In accounting for &lt;/span&gt;&lt;/div&gt;extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our condensed consolidated statements of operations.</us-gaap:DebtPolicyTextBlock>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTcxMA_1ea87bdc-5092-4aa6-a209-a95dfd4eb313"
      unitRef="usd">1000000000.0</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTc0Ng_632c0ebf-54fd-4e98-b8ba-8f0953676c67"
      unitRef="number">0</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTgyNQ_1766597c-88b8-4d5c-b2bd-d2eeca868f2a"
      unitRef="usd">700000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTg2MQ_7d22a062-633c-4522-911a-d58bb8aad5fb"
      unitRef="number">0.00125</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="ice301df70ab24ce782093b82b383deac_I20190430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNTk5Nw_29ee9aef-9d81-4770-9375-cedc74b2ad8a"
      unitRef="usd">100000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:ProceedsFromIssuanceOfDebt
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="-6"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNjA2Mw_4aa8d45c-43ce-48c8-9d92-492c2fe46c37"
      unitRef="usd">800000000</us-gaap:ProceedsFromIssuanceOfDebt>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNjA5Mg_d98e6058-eb9d-461b-82a0-1f3316c3d551"
      unitRef="usd">345000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNjEyOA_927f5d64-d1b8-4380-ad3c-fc67c453077a"
      unitRef="number">0.0025</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY3NA_ae561c28-2d8c-402d-9741-814a0c6222dc">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Share-based Compensation Expense&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial performance targets is measured based on the closing fair market value of the Company&#x2019;s common stock, PSUs with a market-based condition is estimated using a Monte Carlo simulation model, and the ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense, subject to continuing service over the requisite service period, which is generally the vesting period, on a straight-line basis for RSUs and the ESPP and on a graded basis for PSUs. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.&lt;/span&gt;&lt;/div&gt;</us-gaap:ShareBasedCompensationOptionAndIncentivePlansPolicy>
    <us-gaap:EarningsPerSharePolicyTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY3Mw_56b3e57e-f9e8-4912-a695-aa7119fe9e5c">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Net Loss Per Share&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. Diluted net loss per share assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later).&lt;/span&gt;&lt;/div&gt;</us-gaap:EarningsPerSharePolicyTextBlock>
    <us-gaap:UseOfEstimates
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMzMTk_a0691c88-3958-4e77-9cd8-d4cdb94bb4f3">Use of EstimatesThe preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management&#x2019;s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations.</us-gaap:UseOfEstimates>
    <us-gaap:AccruedLiabilitiesCurrent
      contextRef="i632921c54b764fe89fbd2bb5011740fa_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNDk0NzgwMjQwNzA4Mw_680509c8-9f37-424f-bf2c-f6088d359bdb"
      unitRef="usd">6600000</us-gaap:AccruedLiabilitiesCurrent>
    <us-gaap:OperatingLeaseLiabilityCurrent
      contextRef="i632921c54b764fe89fbd2bb5011740fa_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNDk0NzgwMjQwNzA4Mw_76ba42e6-9d38-4849-80ba-7e53f5c39040"
      unitRef="usd">-6600000</us-gaap:OperatingLeaseLiabilityCurrent>
    <us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY5MA_b131c39b-1dae-428d-ba5a-056d2801e1a7">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Other (expense) income, net consists of the following (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Loss on early extinguishment of debt&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(78,152)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Loss on change in fair value of derivative instruments, net&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(7,148)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Gain on sale of strategic equity investment&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;5,338&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Interest income&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,049&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,856&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Other&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;705&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;104&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:11.25pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total other (expense) income, net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(77,208)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,960&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; For further information, see Note 7,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Convertible Senior Notes.&#x201d;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; For further information, see Note 4,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Cash and Cash Equivalents, and Investments.&#x201d;&lt;/span&gt;&lt;/div&gt;</us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock>
    <us-gaap:GainsLossesOnExtinguishmentOfDebt
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMi0xLTEtMS02MTY1_2b605fad-c515-4736-b1b5-8168714a0702"
      unitRef="usd">-78152000</us-gaap:GainsLossesOnExtinguishmentOfDebt>
    <us-gaap:GainsLossesOnExtinguishmentOfDebt
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMi0zLTEtMS02MTY1_a765e3ef-c2ff-408f-a667-453004d3da29"
      unitRef="usd">0</us-gaap:GainsLossesOnExtinguishmentOfDebt>
    <us-gaap:DerivativeGainLossOnDerivativeNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMy0xLTEtMS02MTY1_030e7803-696c-423b-9996-6de8254b6f0d"
      unitRef="usd">-7148000</us-gaap:DerivativeGainLossOnDerivativeNet>
    <us-gaap:DerivativeGainLossOnDerivativeNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfMy0zLTEtMS02MTY1_4d0a8820-0d17-48c8-9528-8260f831974a"
      unitRef="usd">0</us-gaap:DerivativeGainLossOnDerivativeNet>
    <us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNC0xLTEtMS02MTY1_9bf4ea7a-6aa0-4f0e-8164-5854e5a31f82"
      unitRef="usd">5338000</us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal>
    <us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNC0zLTEtMS02MTY1_75ddb6ec-d8a9-46e3-868c-298edb353750"
      unitRef="usd">0</us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal>
    <us-gaap:InterestIncomeExpenseNonoperatingNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNS0xLTEtMS02MTY1_7b848834-d466-4cd7-bdc9-6025d63bcd2a"
      unitRef="usd">2049000</us-gaap:InterestIncomeExpenseNonoperatingNet>
    <us-gaap:InterestIncomeExpenseNonoperatingNet
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNS0zLTEtMS02MTY1_12b75f36-9dfd-4af8-96c2-3c1b165db714"
      unitRef="usd">4856000</us-gaap:InterestIncomeExpenseNonoperatingNet>
    <chgg:OtherIncomeExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNi0xLTEtMS02MTY1_bdd2f0c8-ba60-4c1a-8d55-f3ea46ff99f3"
      unitRef="usd">705000</chgg:OtherIncomeExpense>
    <chgg:OtherIncomeExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNi0zLTEtMS02MTY1_b5d3224e-982e-430b-915a-f82ba66f1eee"
      unitRef="usd">104000</chgg:OtherIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNy0xLTEtMS02MTY1_089b600b-d085-4691-978f-a79c086d7c8b"
      unitRef="usd">-77208000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:OtherNonoperatingIncomeExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RhYmxlOjViZTc1MjNlNDUyMTRjZjdiMTlkYWIzZDU3ZDI2MTFkL3RhYmxlcmFuZ2U6NWJlNzUyM2U0NTIxNGNmN2IxOWRhYjNkNTdkMjYxMWRfNy0zLTEtMS02MTY1_e9a66836-b8f5-42f5-a914-adfcff60e6d2"
      unitRef="usd">4960000</us-gaap:OtherNonoperatingIncomeExpense>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjMzMjY_5d940a57-14fa-4d3a-a506-a8d0cc3b40b9">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Recent Accounting Pronouncements&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Recently Issued Accounting Pronouncements Not Yet Adopted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;There were no accounting pronouncements issued during the three months ended March 31, 2021 that would have an impact on our financial statements.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Recently Adopted Accounting Pronouncements&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Accounting for Convertible Instruments and Contracts in an Entity's Own Equity&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;. ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Debt - Debt with Conversion and Other Options&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $378.1&#160;million and a decrease to additional paid-in capital of $465.0 million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $86.9 million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 7,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Convertible Senior Notes&#x201d; for more information.&lt;/span&gt;&lt;/div&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <us-gaap:StockholdersEquity
      contextRef="i12764ae8b0df47c59efefac345506072_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfNDk0NzgwMjQwMzQ0MA_47f793b4-c778-4de0-b044-4b84d97c6ab8"
      unitRef="usd">378100000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ic5f7018a85dd4c8da3865a618c6adbd0_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY3Nw_9b2e0621-e23d-47b3-9e74-2d6ed537980c"
      unitRef="usd">-465000000.0</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="ie7498e02a2ec444da7609ab9f21e2267_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8zNy9mcmFnOmViYzQ0ODgwZDJmMDRhNjhhYTRlMTVkY2UzMWE4MTBiL3RleHRyZWdpb246ZWJjNDQ4ODBkMmYwNGE2OGFhNGUxNWRjZTMxYTgxMGJfMjc0ODc3OTE4MDY4Mw_900cac13-217a-40d3-b067-8b598716ae13"
      unitRef="usd">-86900000</us-gaap:StockholdersEquity>
    <us-gaap:RevenueFromContractWithCustomerTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjQxMw_db0b71a5-0a70-4eac-b0e1-5e4da91ecbf3">Revenues&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Revenue Recognition&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The majority of our revenues are recognized over time as services are performed, with certain revenues being recognized at a point in time.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:53.870%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:6.655%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Change&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Chegg Services&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;162,351&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;100,359&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;61,992&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;62&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Required Materials&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;36,027&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;31,231&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,796&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total net revenues&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;198,378&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;131,590&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;66,788&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;51&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="margin-top:5pt;text-align:center"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;During the three months ended March 31, 2021 and 2020, we recognized $29.5 million and $17.5&#160;million, respectively, of revenues that were included in our deferred revenue balance at the beginning of each reporting period. During the three months ended March 31, 2021 and 2020, we recognized $10.7 million and $12.3 million, respectively, of operating lease income from print textbook rentals that we own.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Contract Balances&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table presents our accounts receivable, net, deferred revenue, and contract assets balances (in thousands, except percentages):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.561%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:53.672%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.647%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.534%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.647%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.534%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.647%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.534%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:6.685%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Change&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Accounts receivable, net&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;11,633&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;12,913&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,280)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(10)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Deferred revenue&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;48,608&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;32,620&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15,988&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;49&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Contract assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;18,043&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;13,243&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,800&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;36&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;During the three months ended March 31, 2021, our accounts receivable, net balance decreased by $1.3 million, or 10%, primarily due to timing of billings and seasonality of our business. During the three months ended March 31, 2021, our deferred revenue balance increased by $16.0 million, or 49%, primarily due to increased bookings driven by higher Chegg Services revenue. During the three months ended March 31, 2021, our contract assets balance increased by $4.8 million, or 36%, primarily due to the income sharing payment arrangements we offer to students for our Thinkful service.&lt;/span&gt;&lt;/div&gt;</us-gaap:RevenueFromContractWithCustomerTextBlock>
    <us-gaap:DisaggregationOfRevenueTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjQxMA_9bb48e4f-f49c-4410-851b-340f830226f9">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:53.870%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:6.655%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Change&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Chegg Services&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;162,351&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;100,359&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;61,992&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;62&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Required Materials&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;36,027&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;31,231&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,796&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total net revenues&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;198,378&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;131,590&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;66,788&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;51&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:DisaggregationOfRevenueTableTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="ie590078ba2a448f3881817928004f15b_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi0xLTEtMS0w_0b64a0f3-cfdc-4fe4-b29c-ab8a01cabe06"
      unitRef="usd">162351000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="i5a78adcd90564a4eb2a754b561ee3c43_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi0zLTEtMS0w_0a4b2017-8515-46dd-8586-63b7b73a2396"
      unitRef="usd">100359000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease
      contextRef="ie590078ba2a448f3881817928004f15b_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi03LTEtMS0w_aca20d6c-4bdc-4719-bbbe-731d68853099"
      unitRef="usd">61992000</chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease>
    <chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent
      contextRef="ie590078ba2a448f3881817928004f15b_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMi05LTEtMS0w_e1fca9de-0081-44ff-8674-1c3c44ef8b92"
      unitRef="number">0.62</chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy0xLTEtMS0w_859e3d8a-6b62-4621-9a8c-abab61658a44"
      unitRef="usd">36027000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="i2b6775fdc1ee4d19a27b34602e5bfc47_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy0zLTEtMS0w_ccd3b647-b5ee-42a8-9a39-8266e9008090"
      unitRef="usd">31231000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease
      contextRef="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy03LTEtMS0w_9cd1d7e2-6c8a-4d8d-a6ed-a312c737b782"
      unitRef="usd">4796000</chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease>
    <chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent
      contextRef="i13294f811ef0414ba1e28f5d76541c02_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfMy05LTEtMS0w_0951cb40-0ef6-4cf6-92a8-31e5dc8063c1"
      unitRef="number">0.15</chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC0xLTEtMS0w_4ff007ab-d6e1-4352-a7a9-1a62e975b0c2"
      unitRef="usd">198378000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC0zLTEtMS0w_f2bd3b9a-eed8-446b-b41c-323b29e26430"
      unitRef="usd">131590000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC03LTEtMS0w_b2d7a182-75e7-4d59-9fa6-e1e554272668"
      unitRef="usd">66788000</chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease>
    <chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOjNhMGE5NzdjM2FhZTQ5OWU4MTQwZWY0ZmE2YTUwZTMxL3RhYmxlcmFuZ2U6M2EwYTk3N2MzYWFlNDk5ZTgxNDBlZjRmYTZhNTBlMzFfNC05LTEtMS0w_29d1ae18-97e5-4a16-8b97-c3399fa800cc"
      unitRef="number">0.51</chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfNzU0_3ae43f5b-1ca1-4983-ac2f-1e45e5e8a585"
      unitRef="usd">29500000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTA5OTUxMTYzMDM0Nw_5117c0be-910d-4a43-b67a-0568041af84f"
      unitRef="usd">17500000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <us-gaap:OperatingLeaseLeaseIncome
      contextRef="i578269ecbac0452bbac81b4e6b217570_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTQ5OQ_07756307-381e-47b5-b031-83e654263e3d"
      unitRef="usd">10700000</us-gaap:OperatingLeaseLeaseIncome>
    <us-gaap:OperatingLeaseLeaseIncome
      contextRef="i5516c03521734fb592365f3971ab5928_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTA5OTUxMTYzMDgxNA_295780a7-6c58-4fe2-b62c-9033ffeb03b8"
      unitRef="usd">12300000</us-gaap:OperatingLeaseLeaseIncome>
    <us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjQyMw_e25d8edc-8460-4069-944e-9288254da098">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table presents our accounts receivable, net, deferred revenue, and contract assets balances (in thousands, except percentages):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.561%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:53.672%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.647%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.534%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.647%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.534%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.647%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.534%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:6.685%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Change&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Accounts receivable, net&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;11,633&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;12,913&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,280)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(10)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Deferred revenue&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;48,608&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;32,620&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15,988&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;49&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Contract assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;18,043&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;13,243&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,800&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;36&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock>
    <us-gaap:AccountsReceivableNetCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy0xLTEtMS0w_71fefc1a-11f8-42d7-a6d5-4a61dc335e94"
      unitRef="usd">11633000</us-gaap:AccountsReceivableNetCurrent>
    <us-gaap:AccountsReceivableNetCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy0zLTEtMS0w_d31d7c3b-7852-4064-9158-6bd1f1924a0b"
      unitRef="usd">12913000</us-gaap:AccountsReceivableNetCurrent>
    <chgg:IncreaseDecreaseInAccountsReceivableNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy03LTEtMS0w_ea67fa0b-85ad-4d82-ac7b-66eff6400281"
      unitRef="usd">-1280000</chgg:IncreaseDecreaseInAccountsReceivableNet>
    <chgg:IncreaseDecreaseinAccountsReceivablePercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfMy05LTEtMS0w_408fc513-ca61-432c-a532-7f11b7b144a5"
      unitRef="number">-0.10</chgg:IncreaseDecreaseinAccountsReceivablePercent>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC0xLTEtMS0w_39ecae2a-b3e1-4acb-88fa-3dcbcaff576a"
      unitRef="usd">48608000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC0zLTEtMS0w_94bae824-68f1-4279-9404-de8f030e53da"
      unitRef="usd">32620000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:IncreaseDecreaseInContractWithCustomerLiability
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC03LTEtMS0w_3587667f-eb97-4d18-8fb6-e8f90465bb77"
      unitRef="usd">15988000</us-gaap:IncreaseDecreaseInContractWithCustomerLiability>
    <chgg:IncreaseDecreaseinContractwithCustomerLiabilityPercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNC05LTEtMS0w_a401d291-e36a-4ff6-be79-4f7eed0cf2be"
      unitRef="number">0.49</chgg:IncreaseDecreaseinContractwithCustomerLiabilityPercent>
    <us-gaap:ContractWithCustomerAssetNetCurrent
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS0xLTEtMS0w_09a3e23c-8959-4876-83cf-991b7b927872"
      unitRef="usd">18043000</us-gaap:ContractWithCustomerAssetNetCurrent>
    <us-gaap:ContractWithCustomerAssetNetCurrent
      contextRef="i1189b9b25baf4aab8523a9aa3f228070_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS0zLTEtMS0w_40fc1141-210d-488a-9ae0-9b29358c06b3"
      unitRef="usd">13243000</us-gaap:ContractWithCustomerAssetNetCurrent>
    <chgg:IncreaseDecreaseInContractWithCustomerAssets
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS03LTEtMS0w_ec500dda-01ec-4182-825f-8fc75373724b"
      unitRef="usd">4800000</chgg:IncreaseDecreaseInContractWithCustomerAssets>
    <chgg:IncreaseDecreaseInContractWithCustomerAssetsPercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RhYmxlOmEwYjViNDkxNzgyMzQzYTg5Yjg1MDJlMDJhY2Y2MjZlL3RhYmxlcmFuZ2U6YTBiNWI0OTE3ODIzNDNhODliODUwMmUwMmFjZjYyNmVfNS05LTEtMS0w_7e136607-c0d6-48e5-9f62-d489a093046e"
      unitRef="number">0.36</chgg:IncreaseDecreaseInContractWithCustomerAssetsPercent>
    <chgg:IncreaseDecreaseInAccountsReceivableNet
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTk3Mw_deb26e57-e2ff-46c7-80fe-5ede1253c408"
      unitRef="usd">-1300000</chgg:IncreaseDecreaseInAccountsReceivableNet>
    <chgg:IncreaseDecreaseinAccountsReceivablePercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMTk4MA_408fc513-ca61-432c-a532-7f11b7b144a5"
      unitRef="number">-0.10</chgg:IncreaseDecreaseinAccountsReceivablePercent>
    <us-gaap:IncreaseDecreaseInContractWithCustomerLiability
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjEwMw_0f61816b-2df5-4570-b9c0-e0233eed3be1"
      unitRef="usd">16000000.0</us-gaap:IncreaseDecreaseInContractWithCustomerLiability>
    <chgg:IncreaseDecreaseinContractwithCustomerLiabilityPercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjExMA_a401d291-e36a-4ff6-be79-4f7eed0cf2be"
      unitRef="number">0.49</chgg:IncreaseDecreaseinContractwithCustomerLiabilityPercent>
    <chgg:IncreaseDecreaseInContractWithCustomerAssets
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjMzOA_7ff0c6a6-0ff1-475b-8240-1a55f6ad5095"
      unitRef="usd">4800000</chgg:IncreaseDecreaseInContractWithCustomerAssets>
    <chgg:IncreaseDecreaseInContractWithCustomerAssetsPercent
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80MC9mcmFnOmE1ZWJiNjEwMGYwNjQ0MDU4MDUwMjNhMmFkZTdmMWYzL3RleHRyZWdpb246YTVlYmI2MTAwZjA2NDQwNTgwNTAyM2EyYWRlN2YxZjNfMjM0NQ_7e136607-c0d6-48e5-9f62-d489a093046e"
      unitRef="number">0.36</chgg:IncreaseDecreaseInContractWithCustomerAssetsPercent>
    <us-gaap:EarningsPerShareTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RleHRyZWdpb246YTAyMzljODVkYTEwNDg1ZDgxMjIzZjkwZjYxNmQ3YjZfMjI5MQ_df58b081-749e-4c4f-8653-277ee66a9aab">Net Loss Per Share&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. ASU 2020-06 requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. Under the if-converted method, shares related to our convertible senior notes, to the extent dilutive, are assumed to be converted into common stock at the beginning of the period.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;During the three months ended March 31, 2021 and 2020, basic and diluted net loss per share was the same, as the inclusion of all potential common shares outstanding would have been anti-dilutive. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.484%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.823%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%"&gt;Numerator:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net loss&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(65,179)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(5,713)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%"&gt;Denominator:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:11.25pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Weighted average shares used to compute net loss per share, basic and diluted&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;134,352&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;122,428&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr style="height:15pt"&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net loss per share, basic and diluted&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(0.49)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(0.05)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Options to purchase common stock&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;556&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,050&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;PSUs and RSUs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,982&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,316&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Shares related to convertible senior notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;28,818&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,968&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Employee stock purchase plan &lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;25&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;10&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total common stock equivalents&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;32,381&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;8,344&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.&lt;/span&gt;&lt;/div&gt;</us-gaap:EarningsPerShareTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RleHRyZWdpb246YTAyMzljODVkYTEwNDg1ZDgxMjIzZjkwZjYxNmQ3YjZfMjI5Nw_6b1759a5-3723-4efe-a398-91a7c0cee6d8">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.484%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.823%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%"&gt;Numerator:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net loss&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(65,179)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(5,713)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%"&gt;Denominator:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="padding-left:11.25pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Weighted average shares used to compute net loss per share, basic and diluted&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;134,352&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;122,428&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr style="height:15pt"&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net loss per share, basic and diluted&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(0.49)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(0.05)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
    <us-gaap:NetIncomeLoss
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMy0xLTEtMS0w_c99b4686-aba6-4552-81ed-ddca112cfa15"
      unitRef="usd">-65179000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMy0zLTEtMS0w_3ee300a5-8591-48db-aa98-b63d44c7ca71"
      unitRef="usd">-5713000</us-gaap:NetIncomeLoss>
    <us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfNy0xLTEtMS0w_538e728e-1e34-4e41-855b-37b2bda39311"
      unitRef="shares">134352000</us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfNy0zLTEtMS0w_5cfd966b-3255-4c5a-a997-dbc6e41f6e04"
      unitRef="shares">122428000</us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <us-gaap:EarningsPerShareBasicAndDiluted
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMTMtMS0xLTEtMA_bc5122bc-a24d-410e-9273-586ed4bf1e78"
      unitRef="usdPerShare">-0.49</us-gaap:EarningsPerShareBasicAndDiluted>
    <us-gaap:EarningsPerShareBasicAndDiluted
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjkyZTliMDJkOTMyMjQwYjI4NjBkNjNkMzE3OWQxNDZlL3RhYmxlcmFuZ2U6OTJlOWIwMmQ5MzIyNDBiMjg2MGQ2M2QzMTc5ZDE0NmVfMTMtMy0xLTEtMA_4b3a8a2f-535c-42fb-a4eb-7583cecd636e"
      unitRef="usdPerShare">-0.05</us-gaap:EarningsPerShareBasicAndDiluted>
    <us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RleHRyZWdpb246YTAyMzljODVkYTEwNDg1ZDgxMjIzZjkwZjYxNmQ3YjZfMjMxMQ_d3dad6b9-2c8b-4828-b427-6b35846e52ff">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Options to purchase common stock&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;556&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,050&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;PSUs and RSUs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,982&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,316&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Shares related to convertible senior notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;28,818&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,968&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Employee stock purchase plan &lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;25&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;10&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total common stock equivalents&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;32,381&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;8,344&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.&lt;/span&gt;&lt;/div&gt;</us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="ifa0e963ae77b46f480a5dd642a9d4f8e_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMi0xLTEtMS0w_972a4ce2-b8f6-429a-81db-cb84d9643b44"
      unitRef="shares">556000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="i10283bd5321e4f9187c34a63d7fa8c44_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMi0zLTEtMS0w_22811403-19c7-47dc-8259-d8428f7a96e2"
      unitRef="shares">1050000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="idbe1e65f76754c88b280c40813c0710b_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMy0xLTEtMS0w_ca79bb0c-2732-4632-a5bd-a31c63b1334b"
      unitRef="shares">2982000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="id30f84e2f8444a38acec1a8413c9f6a4_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfMy0zLTEtMS0w_bb32da6e-1f63-4ca9-b26e-3c04e49f1cce"
      unitRef="shares">3316000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="i4a02fd92c9574f77b96324ae2ab96f31_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNC0xLTEtMS0w_2603dbbe-9814-4ab6-a9a3-a4c035465ceb"
      unitRef="shares">28818000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="i00f03062b4b244268679dc981bb66898_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNC0zLTEtMS0w_e991d4e9-d63f-4e26-a863-ae12451b3d80"
      unitRef="shares">3968000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="i0079279e15e5491781efbf3f502fd962_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNS0xLTEtMS0w_852472c8-5f7b-4413-8f0e-1d418c45c9c6"
      unitRef="shares">25000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="ib83486b403d3437bb79f0bf3c2cdb3c2_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNS0zLTEtMS0w_5b9e12b6-d348-4960-9959-d23a81905104"
      unitRef="shares">10000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNi0xLTEtMS0w_30bdfd65-7116-4b54-bed2-6b67ec1077cf"
      unitRef="shares">32381000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80My9mcmFnOmEwMjM5Yzg1ZGExMDQ4NWQ4MTIyM2Y5MGY2MTZkN2I2L3RhYmxlOjU4NWNlYTRhNjU3NTQwZTY5YTJiNTM2ZjQwOTk0NjA0L3RhYmxlcmFuZ2U6NTg1Y2VhNGE2NTc1NDBlNjlhMmI1MzZmNDA5OTQ2MDRfNi0zLTEtMS0w_73c91823-05b4-43f9-8cb8-eca92ae53af0"
      unitRef="shares">8344000</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMzI1Nw_3ec519c8-b4ea-49d2-aa29-6cef7f0b2d35">Cash and Cash Equivalents, and Investments&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables show our cash and cash equivalents, and investments&#x2019; adjusted cost, unrealized gain, unrealized loss, and fair value as of March&#160;31, 2021 and December&#160;31, 2020 (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:49.923%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.602%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Adjusted Cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Gain&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Loss&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash and cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;24,399&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;24,399&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,277&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(2)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,276&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total cash and cash equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;656,169&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(2)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;656,168&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,318&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;78&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(32)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,364&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;609,912&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;938&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(270)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;610,580&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total short-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,215,230&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,016&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(302)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,215,944&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;673,029&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;118&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(921)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;672,226&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,996&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(2)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total long-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;712,025&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;122&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(923)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;711,224&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:49.923%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.602%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Adjusted Cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Gain&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Loss&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash and cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15,054&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15,054&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total cash and cash equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;479,853&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;479,853&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,152&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;24&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(6)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,170&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;459,967&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,478&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(48)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;461,397&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total short-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;664,119&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,502&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(54)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;665,567&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,275&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(283)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,995&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;36&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;39,031&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total long-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;523,270&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;641&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(283)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;523,628&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of&#160;March&#160;31, 2021 (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.706%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.630%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.533%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.631%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Adjusted Cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Due in 1 year or less&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,314,507&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,315,220&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Due in 1-2 years&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;712,025&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;711,224&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Investments not due at a single maturity date&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,559,025&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,558,937&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Investments not due at a single maturity date in the preceding table consisted of money market funds.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;As of&#160;March&#160;31, 2021, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. When evaluating whether an investment's unrealized losses are related to credit factors, we review factors such as the extent to which fair value is below its cost basis, any changes to the credit rating of the security, adverse conditions specifically related to the security, changes in market interest rates and our intent to sell, or whether it is more likely than not we will be required to sell, before recovery of cost basis. We invest in highly rated securities with a minimum credit rating of A- and a weighted average maturity of less than twelve months. In addition, our investment policy limits the amount of our credit exposure to any one issuer or industry sector. The policy requires investments to be investment grade, with the primary objective of preserving capital and maintaining liquidity. Fair values were determined for each individual security in the investment portfolio. During the&#160;three months ended March 31, 2021 and 2020, we did not recognize any losses on our investments due to credit related factors.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Strategic Investments&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In March 2020, we completed an investment of $2.0 million in TAPD, Inc., also known as Frank, a U.S.-based service that helps students access financial aid. Additionally, we previously invested&#160;$3.0 million&#160;in a foreign entity to explore expanding our reach internationally. During the three months ended March 31, 2021, we sold our investment in a foreign entity for total consideration of $8.3&#160;million, resulting in a $5.3 million gain included within other (expense) income, net on our condensed consolidated statements of operations. We received a cash payment, net of taxes withheld, of $6.8&#160;million included within cash flows from investing activities on our condensed consolidated statements of cash flows. We did not record any impairment charges on our strategic investments during the three months ended March 31, 2021 and 2020, as there were no significant identified events or changes in circumstances that would be considered an indicator for impairment. We considered general market conditions as a result of the COVID-19 pandemic in our impairment analysis. There were no observable price changes in orderly transactions for the identical or similar investments of the same issuers during the three months ended March 31, 2021 and 2020.&lt;/span&gt;&lt;/div&gt;</us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock>
    <us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMzI1OQ_27314c79-73b4-44d3-9b1d-b205098e7eb5">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following tables show our cash and cash equivalents, and investments&#x2019; adjusted cost, unrealized gain, unrealized loss, and fair value as of March&#160;31, 2021 and December&#160;31, 2020 (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:49.923%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.602%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Adjusted Cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Gain&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Loss&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash and cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;24,399&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;24,399&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,277&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(2)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,276&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total cash and cash equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;656,169&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(2)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;656,168&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,318&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;78&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(32)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,364&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;609,912&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;938&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(270)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;610,580&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total short-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,215,230&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,016&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(302)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,215,944&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;673,029&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;118&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(921)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;672,226&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,996&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(2)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total long-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;712,025&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;122&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(923)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;711,224&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:49.923%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.602%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Adjusted Cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Gain&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Unrealized Loss&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash and cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15,054&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;15,054&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total cash and cash equivalents&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;479,853&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;479,853&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,152&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;24&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(6)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,170&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;459,967&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,478&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(48)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;461,397&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total short-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;664,119&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,502&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(54)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;665,567&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:center;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,275&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(283)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,995&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;36&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;39,031&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total long-term investments&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;523,270&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;641&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(283)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;523,628&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;</us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="icf0c070e556e42c183c49859532a8da0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy0xLTEtMS0w_7fc4874e-0068-4ca4-8558-fe4047f8d913"
      unitRef="usd">24399000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="icf0c070e556e42c183c49859532a8da0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy0zLTEtMS0w_a017e658-6f7e-499e-8be2-6c9f2f9a7707"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="icf0c070e556e42c183c49859532a8da0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy01LTEtMS0w_abe4c162-6dd1-41b7-92e6-eb13056d853c"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="icf0c070e556e42c183c49859532a8da0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMy03LTEtMS0w_8cec1a8c-88a8-487a-9af4-9d7ccd1cc41c"
      unitRef="usd">24399000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS0xLTEtMS0w_a8e4e5a9-868d-425e-adeb-caa6559e6dd0"
      unitRef="usd">532493000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS0zLTEtMS0w_b4aef613-6971-43df-aeae-5e98ef1a59d1"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS01LTEtMS0w_d7769ae5-a45a-4cdc-8c20-ab6277ddd0d5"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i69e7c0175c22453c8f178db2d02ec9a5_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNS03LTEtMS0w_d57577a2-e4ee-495f-990c-74d73d9d286f"
      unitRef="usd">532493000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i172c78145baf41909551e840ec1ab464_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi0xLTEtMS0w_734546ce-4ba0-4299-958c-4e8d5362e0d4"
      unitRef="usd">99277000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i172c78145baf41909551e840ec1ab464_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi0zLTEtMS0w_66312244-d48c-494b-ba94-e675fdeff9e7"
      unitRef="usd">1000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i172c78145baf41909551e840ec1ab464_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi01LTEtMS0w_3b34231b-0d56-4bba-89ad-fc6b6d185a33"
      unitRef="usd">2000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i172c78145baf41909551e840ec1ab464_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNi03LTEtMS0w_a4519b7f-41d1-4c83-81d9-e7aaa64e2c05"
      unitRef="usd">99276000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy0xLTEtMS0w_87aa7d7b-b290-463c-ab40-ff582455a50a"
      unitRef="usd">656169000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy0zLTEtMS0w_4df6f6e2-7741-4fe1-b0e3-ad3b67d791fd"
      unitRef="usd">1000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy01LTEtMS0w_d46996a6-f92e-453f-bc88-3f108728bfac"
      unitRef="usd">2000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfNy03LTEtMS0w_57b9ae58-087a-4404-a6b4-2f2625af84d3"
      unitRef="usd">656168000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS0xLTEtMS0w_eea8cf3c-e3db-4145-b09e-00eb5245148d"
      unitRef="usd">605318000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS0zLTEtMS0w_de7f051c-9778-4e5a-bba2-0365d0f5bff3"
      unitRef="usd">78000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS01LTEtMS0w_35f500fe-357c-43a4-a001-610c2c9d6a4f"
      unitRef="usd">32000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="iaec8a56d9d3745b5b498d0a08f3102f3_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfOS03LTEtMS0w_ec196556-4591-4a63-bde7-4c9c30af6fb8"
      unitRef="usd">605364000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtMS0xLTEtMA_69090a43-5ff7-4be6-8214-d0fdf1940bf7"
      unitRef="usd">609912000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtMy0xLTEtMA_1c7e6bba-25ee-44b5-aebd-3e00949eddb1"
      unitRef="usd">938000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtNS0xLTEtMA_c7f8174f-ef6f-4274-baa4-1336107ab428"
      unitRef="usd">270000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i415ff9e3049043c0a7667be86e6b63c1_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTAtNy0xLTEtMA_105c9c6a-de7c-4f45-b346-19296925b599"
      unitRef="usd">610580000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtMS0xLTEtMA_29942c47-e701-4389-9696-4a4a79207c3a"
      unitRef="usd">1215230000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtMy0xLTEtMA_b828e4ee-1cf0-4412-8e51-89076a0d5941"
      unitRef="usd">1016000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtNS0xLTEtMA_8f9ff4d4-c9fe-4a6b-9f4d-17a267394898"
      unitRef="usd">302000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="ie143808a98724296ab180c4cd9a7ffa0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTMtNy0xLTEtMA_2e870488-ad9e-43d9-87d8-1596a3433697"
      unitRef="usd">1215944000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtMS0xLTEtMA_beb1ee02-a1b2-4a66-8d88-f0cb944e3eb7"
      unitRef="usd">673029000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtMy0xLTEtMA_a2221335-0611-4dee-98da-a421fae67d04"
      unitRef="usd">118000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtNS0xLTEtMA_d79e07be-bef5-488f-bc77-764728fd47eb"
      unitRef="usd">921000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="ie445ee6cc8494d45bc1e4ba23fc63096_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTUtNy0xLTEtMA_803bb8e7-4e67-4841-a18d-ab3ac2eb98eb"
      unitRef="usd">672226000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctMS0xLTEtMA_833c710b-c14c-494c-b451-9ccb3d1f4ea9"
      unitRef="usd">38996000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctMy0xLTEtMA_1bf05b45-dbfc-4120-b3c0-23f01f044d04"
      unitRef="usd">4000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctNS0xLTEtMA_9339cdb9-c2b5-4f43-98f0-297d613bae3e"
      unitRef="usd">2000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i2c6cc6faa0c94dbdb9fa2f30fda88c8c_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTctNy0xLTEtMA_9dcf6de5-e361-4a78-8ce7-dd7d67095a3d"
      unitRef="usd">38998000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtMS0xLTEtMA_46675010-636b-4437-86a4-b15a2e06d755"
      unitRef="usd">712025000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtMy0xLTEtMA_c561fa40-f4a2-4fc2-8a85-b986585c8cb2"
      unitRef="usd">122000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtNS0xLTEtMA_13819e5a-7d69-471c-bac0-ee05747fda3d"
      unitRef="usd">923000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i1e7291ab33294556b1c0da7be0f4d3e4_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOmYzNWVhOWEwYTYzOTQ2ZTFhOTJkM2QyYjgxODkyOGE5L3RhYmxlcmFuZ2U6ZjM1ZWE5YTBhNjM5NDZlMWE5MmQzZDJiODE4OTI4YTlfMTgtNy0xLTEtMA_067776d3-72c4-456a-849d-9bba41873196"
      unitRef="usd">711224000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy0xLTEtMS0w_986f9da5-2778-4b73-83d3-2b29eae12092"
      unitRef="usd">15054000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy0zLTEtMS0w_0eb9d058-0528-404a-861e-edf08dbbe6b0"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy01LTEtMS0w_39fe0193-36a7-4623-b557-4e7ad6be9789"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i4445c045e79c4f1284cc9e9dc6df3411_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMy03LTEtMS0w_cb206cb3-27b4-4262-b09b-8df477ca662c"
      unitRef="usd">15054000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC0xLTEtMS0w_1213d062-a6c4-42db-b791-6cc18ebaeff2"
      unitRef="usd">464799000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC0zLTEtMS0w_cab12649-7ae3-43f8-a0b4-846c4c75606b"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC01LTEtMS0w_f28b1915-5860-48df-bc53-fc65b62d5403"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i115d5595c2ec4a099ea06a1b3cc35a58_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNC03LTEtMS0w_35f0f9ee-09d6-48a1-a23d-80918e95c0f4"
      unitRef="usd">464799000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi0xLTEtMS0w_a17be63b-a8ba-4b0c-b82b-3b277a3da920"
      unitRef="usd">479853000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi0zLTEtMS0w_4d09c11f-6ced-4300-b080-b1c067601e6f"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi01LTEtMS0w_ffbd4ca5-abb2-4bd7-b260-9769582b2604"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i842cf9a4686d424eb086c9079f18f1a1_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfNi03LTEtMS0w_ab40fc9d-88e2-46d3-b66a-1c59660354a5"
      unitRef="usd">479853000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC0xLTEtMS0w_e0e3e593-80ed-4917-b1a7-02672eba6d01"
      unitRef="usd">204152000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC0zLTEtMS0w_ff84c16d-fa74-4919-9334-81f209a0b893"
      unitRef="usd">24000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC01LTEtMS0w_3ae8d464-426e-4f6d-90c6-a2df6389ccd0"
      unitRef="usd">6000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="if749a358ce4843d9babf554d2374b7e3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOC03LTEtMS0w_3dd41143-2d8a-4da2-b2ca-f34feffb291e"
      unitRef="usd">204170000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i916f7c55327d42038ef1c618902902f8_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS0xLTEtMS0w_6d3e144f-1fe5-41db-9a42-afd5280362df"
      unitRef="usd">459967000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i916f7c55327d42038ef1c618902902f8_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS0zLTEtMS0w_638d1da7-3022-4663-9e8a-d496ac13d03b"
      unitRef="usd">1478000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i916f7c55327d42038ef1c618902902f8_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS01LTEtMS0w_18db0254-8cd7-429d-bb2d-763017143a88"
      unitRef="usd">48000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i916f7c55327d42038ef1c618902902f8_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfOS03LTEtMS0w_c370a3d6-1a4d-4717-8f24-6535c25a21aa"
      unitRef="usd">461397000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i4c91464096144bd1816925c57305ca66_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItMS0xLTEtMA_a8a0ec81-3c99-4ffd-aafb-67f4a760cfc3"
      unitRef="usd">664119000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i4c91464096144bd1816925c57305ca66_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItMy0xLTEtMA_cdab0b45-ac08-45bc-b77f-7c5e4056ff89"
      unitRef="usd">1502000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i4c91464096144bd1816925c57305ca66_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItNS0xLTEtMA_b7b9c517-a6ad-4520-9591-1762661e60d7"
      unitRef="usd">54000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i4c91464096144bd1816925c57305ca66_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTItNy0xLTEtMA_975927da-6dc4-47a5-9236-f7f0b378915e"
      unitRef="usd">665567000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtMS0xLTEtMA_ff3db385-7180-401b-990a-a42068d71222"
      unitRef="usd">484275000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtMy0xLTEtMA_4d529c0d-90f6-48c1-8de6-817585931c9d"
      unitRef="usd">605000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtNS0xLTEtMA_0ce102f2-eac1-4b2f-ac00-32779626e1d6"
      unitRef="usd">283000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i2c52aeef7c574579b798efa1f5192b06_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTQtNy0xLTEtMA_1f5fb285-3617-4285-af5e-3af05c6d30ca"
      unitRef="usd">484597000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtMS0xLTEtMA_bc4736c7-1f24-4706-b5c9-cba50c137a34"
      unitRef="usd">38995000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtMy0xLTEtMA_e4ad9c41-0823-40cd-b4f5-2b042850adf1"
      unitRef="usd">36000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtNS0xLTEtMA_57bbdadb-ec78-4688-8105-422b25db09f3"
      unitRef="usd">0</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i253370a184ea4b09bea91473fd39b63b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTYtNy0xLTEtMA_00210d1b-4396-4d9c-ba1c-62681afe6984"
      unitRef="usd">39031000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="ied802633df7c4b63b27f5449be77be32_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctMS0xLTEtMA_32389d17-7389-407e-a16f-48679d67e0bd"
      unitRef="usd">523270000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
      contextRef="ied802633df7c4b63b27f5449be77be32_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctMy0xLTEtMA_c1c2d516-93cd-46e0-9714-0090159ecf79"
      unitRef="usd">641000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax>
    <us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
      contextRef="ied802633df7c4b63b27f5449be77be32_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctNS0xLTEtMA_da1ec865-39a6-429c-93d4-85fc86ed127c"
      unitRef="usd">283000</us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="ied802633df7c4b63b27f5449be77be32_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjg1NDk1Mzg2ZDkyMTRiN2NiOTA4ZjgxMTc0NzgzZTA5L3RhYmxlcmFuZ2U6ODU0OTUzODZkOTIxNGI3Y2I5MDhmODExNzQ3ODNlMDlfMTctNy0xLTEtMA_b0df2910-878c-4893-9f4c-39336ded222e"
      unitRef="usd">523628000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMzI2Mg_09ca7dce-f2a9-4d27-8770-190b89019894">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of&#160;March&#160;31, 2021 (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.706%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.630%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.533%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.631%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Adjusted Cost&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Due in 1 year or less&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,314,507&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,315,220&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Due in 1-2 years&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;712,025&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;711,224&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Investments not due at a single maturity date&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,559,025&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,558,937&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock>
    <us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMS0xLTEtMS0w_8132c8d9-a03b-4a2d-8aff-4f7e73ce84a9"
      unitRef="usd">1314507000</us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost>
    <us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMS0zLTEtMS0w_bdacdd80-4173-4df1-b4dc-96ffdd66f8cc"
      unitRef="usd">1315220000</us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue>
    <chgg:AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMi0xLTEtMS0w_fb9808be-c67d-4a44-8e0f-7d04d2708437"
      unitRef="usd">712025000</chgg:AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis>
    <chgg:AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMi0zLTEtMS0w_e40461d9-0f5b-48a2-af03-77d353371f3c"
      unitRef="usd">711224000</chgg:AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue>
    <us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMy0xLTEtMS0w_7984a20f-851d-44dd-91a7-bb9a8fe8c9e1"
      unitRef="usd">532493000</us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost>
    <us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfMy0zLTEtMS0w_43532ef4-4322-4796-8644-20db2b06e7fb"
      unitRef="usd">532493000</us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue>
    <us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfNC0xLTEtMS0w_67566e2a-2adc-487e-8d4b-d45db29a1ca1"
      unitRef="usd">2559025000</us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis>
    <us-gaap:AvailableForSaleSecuritiesDebtSecurities
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RhYmxlOjU5MzU5NWZhZmE2MDRkMWVhZTNjYzE1YTgyZjAyZTgyL3RhYmxlcmFuZ2U6NTkzNTk1ZmFmYTYwNGQxZWFlM2NjMTVhODJmMDJlODJfNC0zLTEtMS0w_b9aac829-4089-4f4c-8eff-8dc1398bb296"
      unitRef="usd">2558937000</us-gaap:AvailableForSaleSecuritiesDebtSecurities>
    <chgg:AvailableForSaleSecuritiesWeightedAverageMaturity
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMTE2MA_468e2afc-a093-47c6-a83f-ae8f5a5e6a41">P12M</chgg:AvailableForSaleSecuritiesWeightedAverageMaturity>
    <us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
      contextRef="i8e328d3f7ae94d14ad10de83aa462d9a_I20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMjA2Mg_de402d7c-fd2e-43b4-8d18-9de2d33b666c"
      unitRef="usd">2000000.0</us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount>
    <us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
      contextRef="i4ac53f75170148df9efb57cc2747b5a5_I20170930"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMjM2Mw_fb06e706-af5b-4dc1-b277-563810538dce"
      unitRef="usd">3000000.0</us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount>
    <us-gaap:EquityMethodInvestmentSoldCarryingAmount
      contextRef="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMTA5OTUxMTYzNDU1Mw_6f8ef9e3-646a-4d24-bd0f-abc6aca66a10"
      unitRef="usd">8300000</us-gaap:EquityMethodInvestmentSoldCarryingAmount>
    <us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal
      contextRef="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfMjc0ODc3OTA3ODgyOA_18d4b731-fca9-405b-8b1f-ffcb5591d0cc"
      unitRef="usd">5300000</us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal>
    <us-gaap:ProceedsFromSaleOfEquityMethodInvestments
      contextRef="i7e9f213b6d334c979e8c826a8a0bc24e_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80Ni9mcmFnOjk3M2VlMDY1YzZiMzRhYzhiMDkwZjJmODc4NWVmMzM4L3RleHRyZWdpb246OTczZWUwNjVjNmIzNGFjOGIwOTBmMmY4Nzg1ZWYzMzhfNDk0NzgwMjMzMjc0Mw_96f9b514-3d70-49f5-979e-25f3b60fa446"
      unitRef="usd">6800000</us-gaap:ProceedsFromSaleOfEquityMethodInvestments>
    <us-gaap:FairValueDisclosuresTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI3Ng_fc2b5e7f-869e-477f-930f-d7537e25f9a4">Fair Value Measurement&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We have established a fair value hierarchy used to determine the fair value of our financial instruments as follows:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Level 1&#x2014;Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Level 2&#x2014;Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Level 3&#x2014;Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value; the inputs require significant management judgment or estimation.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;A financial instrument&#x2019;s classification within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Financial instruments measured and recorded at fair value on a recurring basis as of March&#160;31, 2021 and December&#160;31, 2020 are classified based on the valuation technique level in the tables below (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:62.350%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.600%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,276&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,276&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,364&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,364&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;610,580&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;610,580&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;672,226&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;672,226&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total assets measured and recorded at fair value&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,558,937&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,026,444&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:62.350%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.600%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,170&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,170&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;461,397&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;461,397&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;39,031&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;39,031&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total assets measured and recorded at fair value&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,653,994&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,189,195&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We value our investments based on quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. Other than our money market funds, we classify our fixed income available-for-sale investments as having Level 2 inputs. The valuation techniques used to measure the fair value of our investments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models such as discounted cash flow techniques. We do not hold any investments valued with a Level 3 input.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Financial Instruments Not Recorded at Fair Value on a Recurring Basis&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We report our financial instruments at fair value with the exception of the notes. The estimated fair value of the notes was determined based on the trading price of the notes as of the last day of trading for the period. We consider the fair value of the notes to be a Level 2 measurement due to the limited trading activity. For further information on the notes see Note 7, &#x201c;Convertible Senior Notes.&#x201d;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The carrying amounts and estimated fair values of the notes as of March&#160;31, 2021 and December&#160;31, 2020 are as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:49.851%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.613%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.532%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.613%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.532%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.613%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.532%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.614%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020 &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Carrying Amount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Estimated Fair Value&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Carrying Amount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Estimated Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2026 notes&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;985,706&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,054,020&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;761,930&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,129,370&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2025 notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;688,240&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,202,129&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;640,614&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,456,800&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2023 notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;109,494&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;377,186&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;104,378&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;376,949&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Convertible senior notes, net&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,783,440&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,633,335&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,506,922&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,963,119&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 7,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Convertible Senior Notes&#x201d; for more information.&lt;/span&gt;&lt;/div&gt;The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of March&#160;31, 2021 was net of unamortized issuance costs of&#160;$14.3 million, $11.8 million and $1.4 million, respectively. The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of December&#160;31, 2020 was net of unamortized debt discount of&#160;$226.7 million, $149.1 million and $10.0 million, respectively, and unamortized issuance costs of&#160;$11.3 million, $10.2 million and $1.2 million, respectively.</us-gaap:FairValueDisclosuresTextBlock>
    <us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI2OQ_c070909f-5e85-4ab3-a5be-398969069b42">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Financial instruments measured and recorded at fair value on a recurring basis as of March&#160;31, 2021 and December&#160;31, 2020 are classified based on the valuation technique level in the tables below (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:62.350%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.600%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,276&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;99,276&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,364&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;605,364&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;610,580&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;610,580&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;672,226&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;672,226&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total assets measured and recorded at fair value&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,558,937&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;532,493&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,026,444&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:62.350%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.600%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 1&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Level 2&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Assets:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cash equivalents:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Money market funds&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Short-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Commercial paper&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,170&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;204,170&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;461,397&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;461,397&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Long-term investments:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Corporate debt securities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;484,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Agency bonds&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;39,031&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;39,031&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total assets measured and recorded at fair value&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,653,994&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;464,799&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,189,195&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="i3c93445b7b86422e8edfa5b04878d82b_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNS0xLTEtMS0w_2b692a25-db38-4fc8-9f39-77b14fdf0066"
      unitRef="usd">532493000</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="i3d44b05731434be48f98b74572083fb3_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNS0zLTEtMS0w_540c6112-e71f-40b4-be17-a58b40700928"
      unitRef="usd">532493000</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="id8d4674a54a54b8f92c0487fcd87b14e_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNS01LTEtMS0w_cdac38bf-3faa-4edb-90b0-fec026856db5"
      unitRef="usd">0</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="i2e3bee8f9916464594628b713455ae42_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNi0xLTEtMS0w_7ef4556a-fea0-4e3d-9a9d-12dbf6a752fa"
      unitRef="usd">99276000</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="ifca00fd8939544a2a2d9edb23b2289cf_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNi0zLTEtMS0w_fad616e1-0958-4f95-95b4-7b0a48476fa6"
      unitRef="usd">0</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="ic7a912906fee48328c1f9b00793b8eed_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfNi01LTEtMS0w_a5641ea4-a3f0-4e9f-8c66-7e15bf8bbf7e"
      unitRef="usd">99276000</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:ShortTermInvestments
      contextRef="i8acb9e05e21a49feb0632b34b6981fed_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOC0xLTEtMS0w_f5fb39fa-6587-4f05-a9c8-71cb4d5fecfd"
      unitRef="usd">605364000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="ia87b19132045443d98991df33f3686ca_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOC0zLTEtMS0w_d9e55fb6-3ada-4b1a-b640-eab80a77be43"
      unitRef="usd">0</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i5a245e9bb44e45d3b0bfbb9103f1bafa_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOC01LTEtMS0w_992cec35-738a-4816-b8c6-0f567e6036a2"
      unitRef="usd">605364000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i137267fec3ea446490ce7cadd9c292e5_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOS0xLTEtMS0w_80cee47c-564d-423b-a4ef-69c3774b5fe2"
      unitRef="usd">610580000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i57290ec5213c4fc6ad9484a5bf422121_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOS0zLTEtMS0w_9185cd7d-c2a0-490f-82f6-4b1723ea2d6c"
      unitRef="usd">0</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i19970572f5bc4130afaaaebb173f68db_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfOS01LTEtMS0w_fc47f7f9-8a47-4f23-8103-75594d99c02c"
      unitRef="usd">610580000</us-gaap:ShortTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i137267fec3ea446490ce7cadd9c292e5_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTMtMS0xLTEtMA_16e79f65-2c49-4eaa-9282-f2733327d355"
      unitRef="usd">672226000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i57290ec5213c4fc6ad9484a5bf422121_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTMtMy0xLTEtMA_d18a6a39-cdfa-4602-9210-2e9cb636813d"
      unitRef="usd">0</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i19970572f5bc4130afaaaebb173f68db_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTMtNS0xLTEtMA_da8d40b8-672f-4082-a626-8b3075cb2369"
      unitRef="usd">672226000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i00e76bc4f3824b249cba395392d5cdd6_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTUtMS0xLTEtMA_56db28ed-a5fa-47cf-980a-e2f5b2322c65"
      unitRef="usd">38998000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i5904dd9b1812445e958f4053ca2cda0a_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTUtMy0xLTEtMA_196a7f38-a0f7-43b3-9376-7882c7b80497"
      unitRef="usd">0</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="ibbdec02910764ace805fcb3c9ef8fe86_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTUtNS0xLTEtMA_6bcf600d-a881-496a-a349-72ba1ce259de"
      unitRef="usd">38998000</us-gaap:LongTermInvestments>
    <us-gaap:AssetsFairValueDisclosure
      contextRef="i400b4a04d23446aca3c6f478368b9612_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTYtMS0xLTEtMA_578fe2c9-f28a-4b56-854f-6c242a869627"
      unitRef="usd">2558937000</us-gaap:AssetsFairValueDisclosure>
    <us-gaap:AssetsFairValueDisclosure
      contextRef="ia70bf5bf4d9049119e6c38e39951a45a_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTYtMy0xLTEtMA_cf19733c-f405-41a5-9f90-7e41f736f021"
      unitRef="usd">532493000</us-gaap:AssetsFairValueDisclosure>
    <us-gaap:AssetsFairValueDisclosure
      contextRef="i5e76970462f04e609b9ad340b2f70038_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjJmMjFmMTQ3NWYwNTQwYmM4ODA1ODE1N2E2NmNmYzUzL3RhYmxlcmFuZ2U6MmYyMWYxNDc1ZjA1NDBiYzg4MDU4MTU3YTY2Y2ZjNTNfMTYtNS0xLTEtMA_2f758f5f-48d0-4dae-b5bf-96c93d469e7c"
      unitRef="usd">2026444000</us-gaap:AssetsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="ifa05833312b64606bef2d50c7162b758_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNC0xLTEtMS0w_96071b31-248d-4d37-bc3e-df7fd19b249e"
      unitRef="usd">464799000</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="iedcc0b8c9d6742b6b175dd9767223469_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNC0zLTEtMS0w_2afe0d2b-df31-4d95-a2d0-e743210c14d1"
      unitRef="usd">464799000</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:CashAndCashEquivalentsFairValueDisclosure
      contextRef="ib4bcab0d1a574dc7bf5765086d26ef6d_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNC01LTEtMS0w_6b22e233-e879-47aa-8654-92ab46c95dc1"
      unitRef="usd">0</us-gaap:CashAndCashEquivalentsFairValueDisclosure>
    <us-gaap:ShortTermInvestments
      contextRef="ieb780147ce0842dca611e13faf747691_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNy0xLTEtMS0w_5e77f5a3-79ca-4c11-ac53-1f2001f256f4"
      unitRef="usd">204170000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="ib4fb5ce664814df2a4ec0aa1bf06089e_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNy0zLTEtMS0w_f6242897-d27b-43c0-877e-247c91405202"
      unitRef="usd">0</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i8c774c55638c45d0ae1a6631c3ea8718_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfNy01LTEtMS0w_d6a41a88-4c0e-4f5c-986e-0b59ef753ab1"
      unitRef="usd">204170000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i8ac28ab040314c8999c03a9ae78fc18d_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfOC0xLTEtMS0w_21d83f10-7369-42c5-817d-1605eac26911"
      unitRef="usd">461397000</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i61cb7edd5e844bc495f76a3cea58e192_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfOC0zLTEtMS0w_0bf26aff-a47e-4ac9-802a-b42a0a26210e"
      unitRef="usd">0</us-gaap:ShortTermInvestments>
    <us-gaap:ShortTermInvestments
      contextRef="i080fdcbd1db4436da89f44f299c92982_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfOC01LTEtMS0w_0e17885f-b608-414b-99c0-6114f597be5d"
      unitRef="usd">461397000</us-gaap:ShortTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i8ac28ab040314c8999c03a9ae78fc18d_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTItMS0xLTEtMA_3fa64a7b-fffa-4f1b-8fea-eaba9f828ade"
      unitRef="usd">484597000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i61cb7edd5e844bc495f76a3cea58e192_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTItMy0xLTEtMA_173e2240-ebe8-409f-95a8-cc1dc59b9376"
      unitRef="usd">0</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i080fdcbd1db4436da89f44f299c92982_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTItNS0xLTEtMA_d1ae5d24-e6c4-4d29-b3b0-cf5f535575fa"
      unitRef="usd">484597000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i3a32b85fa9c54f3c81becc293dca9f00_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTMtMS0xLTEtMA_0498b498-92e7-4714-a8c2-318232423607"
      unitRef="usd">39031000</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i996c1de95f6741089f3fa705d124b45f_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTMtMy0xLTEtMA_d4429e85-7425-47d4-919b-c9e09ab100b8"
      unitRef="usd">0</us-gaap:LongTermInvestments>
    <us-gaap:LongTermInvestments
      contextRef="i3ee67983fdb64d048648316ca27c57e3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTMtNS0xLTEtMA_b7da8f03-583b-4849-abbb-2e8c8986d8b5"
      unitRef="usd">39031000</us-gaap:LongTermInvestments>
    <us-gaap:AssetsFairValueDisclosure
      contextRef="i364b558b09924ec0a6801111772e64b3_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTQtMS0xLTEtMA_711380c0-4b6c-4370-8bfa-9b41805f4699"
      unitRef="usd">1653994000</us-gaap:AssetsFairValueDisclosure>
    <us-gaap:AssetsFairValueDisclosure
      contextRef="if2ee030ea58e4d42a2fc86e688ad2fe5_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTQtMy0xLTEtMA_2d9869d6-bbd1-464b-b391-23bc3f4bf6fa"
      unitRef="usd">464799000</us-gaap:AssetsFairValueDisclosure>
    <us-gaap:AssetsFairValueDisclosure
      contextRef="i17134a150c0746c69ca88b7fc2df41c9_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOjYzNTkwMzY4MjA2MDQ5OWI5NjdlZjQyMjRjMjNhNjIwL3RhYmxlcmFuZ2U6NjM1OTAzNjgyMDYwNDk5Yjk2N2VmNDIyNGMyM2E2MjBfMTQtNS0xLTEtMA_878a5b5f-3bd4-46ba-9297-e3c6c5a55da6"
      unitRef="usd">1189195000</us-gaap:AssetsFairValueDisclosure>
    <us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI3NQ_799c9f4d-797d-46ab-b6b6-afd3abc6d18b">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The carrying amounts and estimated fair values of the notes as of March&#160;31, 2021 and December&#160;31, 2020 are as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:49.851%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.613%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.532%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.613%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.532%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.613%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.532%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.614%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020 &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Carrying Amount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Estimated Fair Value&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Carrying Amount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Estimated Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2026 notes&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;985,706&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,054,020&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;761,930&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,129,370&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2025 notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;688,240&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,202,129&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;640,614&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,456,800&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2023 notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;109,494&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;377,186&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;104,378&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;376,949&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Convertible senior notes, net&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,783,440&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,633,335&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,506,922&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,963,119&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 7,&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x201c;Convertible Senior Notes&#x201d; for more information.&lt;/span&gt;&lt;/div&gt;</us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock>
    <us-gaap:LongTermDebtFairValue
      contextRef="iddbcfc913c1248099d6e071eab53ebd8_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi0xLTEtMS0w_ec07a13c-a6ad-46ef-9211-38f858fd89ac"
      unitRef="usd">985706000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="ic539932282a54f25aef5baa74ccc4260_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi0zLTEtMS0w_75271d4b-d67d-494c-b4f9-ca27cc6fc6f6"
      unitRef="usd">1054020000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="iac7af935c18447548371b256fa5adc25_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi01LTEtMS0w_6bb22b05-9c98-4a90-b021-122eace3e4e0"
      unitRef="usd">761930000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i9dfc991bdd2945da8a20b758f5e7a4e4_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMi03LTEtMS0w_0d7c0076-b8fa-43fd-87c8-eba961b71cc2"
      unitRef="usd">1129370000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i3a5ce7f3425745f381b986d2dcc4e04e_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy0xLTEtMS0w_2406b6f3-3194-4545-83ff-a162a93899bf"
      unitRef="usd">688240000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i9ec9b226b4fc4bfbb99f48139cf7bed1_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy0zLTEtMS0w_2d2b1208-39eb-4701-a2cf-8eb9c5f9ce07"
      unitRef="usd">1202129000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i707cf4308ed9453cb40bc27962b1a349_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy01LTEtMS0w_da14681e-8cf8-4cf0-b712-aa13b01fda0b"
      unitRef="usd">640614000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i93f8c639a0ed47bdab784fff08e21364_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfMy03LTEtMS0w_7f421e42-3928-4766-afc8-a43d29fc5024"
      unitRef="usd">1456800000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i262c95c8588a42f3902ea5c2cd1a24c0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC0xLTEtMS0w_3259a95d-5bb4-4432-9b0b-1ffaa4126a3e"
      unitRef="usd">109494000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i385386847f734c0ca41f00702907db6c_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC0zLTEtMS0w_d8349b6f-ea16-485b-8ac2-f87726602ba3"
      unitRef="usd">377186000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i756b589cc250419ea816398952a55f38_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC01LTEtMS0w_ccb62fd2-a50a-4425-b427-d9abb0f7034a"
      unitRef="usd">104378000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i9bc15106cbe84069b59b9c49e4407afc_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNC03LTEtMS0w_8a061a7f-0644-4174-906f-7f0c3a541d23"
      unitRef="usd">376949000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i8631bb0aa5c5403e9a670bd4ad3bb103_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS0xLTEtMS0w_2609bcd1-9fb1-4ebc-979f-9afe5c279e9d"
      unitRef="usd">1783440000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="ic4d1aadda93d4ee0b061ddaacc83fcb0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS0zLTEtMS0w_7fb65316-4ba1-4364-86ab-31e12ff1258e"
      unitRef="usd">2633335000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="ifdb52672bb1a45f0abf595fa0238ed23_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS01LTEtMS0w_0a17063a-bd7b-4f41-bb96-5ae4cf80a7eb"
      unitRef="usd">1506922000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i68208b874ee847b78cb809d56e675824_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RhYmxlOmU1N2I2ZjUwZGEyZjQyMzRhMDc4OGI5YmMzNWFmM2U5L3RhYmxlcmFuZ2U6ZTU3YjZmNTBkYTJmNDIzNGEwNzg4YjliYzM1YWYzZTlfNS03LTEtMS0w_6b7c5059-e531-475d-892f-a09c127eaab8"
      unitRef="usd">2963119000</us-gaap:LongTermDebtFairValue>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i11978135b6904d1baefe472298180885_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzA1Mg_988e94c7-a206-4f34-9811-4de1caa51d1d"
      unitRef="usd">14300000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzA1Ng_9de4858f-d19b-4073-b77f-02f3d31c86f0"
      unitRef="usd">11800000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzA2Mw_b5cc99d5-8129-473e-92e1-2321678137e7"
      unitRef="usd">1400000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMTY0OTI2NzQ0NjA2OQ_b1aa9414-048d-4e62-a930-130fe3bdf03e"
      unitRef="usd">226700000</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzE4Mw_490e00dd-4209-4904-b76f-39df52e3a254"
      unitRef="usd">149100000</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzE5MA_2c933a1c-9841-4a46-9db5-f19b246b1ce1"
      unitRef="usd">10000000.0</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMTY0OTI2NzQ0NjA4MA_3dc16e87-af5e-4b5a-9b82-44d998cec03d"
      unitRef="usd">11300000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI0Mg_32264eac-0602-4994-a993-140653b4162d"
      unitRef="usd">10200000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl80OS9mcmFnOjkwNDRkNmQ1ZDhlYzRlNmJhMjg4Mzk3NTc1MzU5ZGIwL3RleHRyZWdpb246OTA0NGQ2ZDVkOGVjNGU2YmEyODgzOTc1NzUzNTlkYjBfMzI0OQ_865227f0-d292-4efc-a7ec-fd60fb06fe6f"
      unitRef="usd">1200000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:BusinessCombinationDisclosureTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfMzMzOQ_f1aa2031-7690-40fb-a60f-35754f944acd">AcquisitionOn February 22, 2021, we completed an acquisition, accounted for as a business combination, of 100% of the outstanding shares of a company for a technology that will strengthen our content creation abilities for a purchase consideration of $8.0&#160;million in cash. Our preliminary total allocation of purchase consideration included acquired assets of $0.4&#160;million, acquired developed technology intangible asset of $3.3&#160;million and goodwill of $5.8&#160;million less assumed liabilities of $1.5&#160;million. This acquisition did not have a material impact on our condensed consolidated financial statements and is not expected to have a material impact in future periods.</us-gaap:BusinessCombinationDisclosureTextBlock>
    <chgg:BusinessCombinationPercentOwnershipAcquired
      contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfMTA5OTUxMTYzOTIwNQ_b1e434fe-99e5-44a3-a79f-fdefd0cdd3f3"
      unitRef="number">1</chgg:BusinessCombinationPercentOwnershipAcquired>
    <us-gaap:PaymentsToAcquireBusinessesGross
      contextRef="ice3bd056eafd49bd9708b80fad62ef9d_D20210222-20210222"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNDk5Ng_f18631a4-2b9a-4acc-af31-d4b27bf7ef7e"
      unitRef="usd">8000000.0</us-gaap:PaymentsToAcquireBusinessesGross>
    <us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
      contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNTQ1OA_78e83036-f1e9-4ed4-8e17-f1086d569743"
      unitRef="usd">400000</us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets>
    <us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
      contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNTQ5Mw_17b0fee1-4b2d-47ee-b576-f55e3ffebbb2"
      unitRef="usd">3300000</us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles>
    <us-gaap:Goodwill
      contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNTUxMw_7e58de01-5187-4239-bb4f-7bf9353dd793"
      unitRef="usd">5800000</us-gaap:Goodwill>
    <us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
      contextRef="i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81Mi9mcmFnOjQ0OGFkMDk2MGE5YjQ5NGRhNzQ0ZjM3ZWE1OTQ4MWNkL3RleHRyZWdpb246NDQ4YWQwOTYwYTliNDk0ZGE3NDRmMzdlYTU5NDgxY2RfNDk0NzgwMjMzNjI1Ng_419d1b04-fe30-4f97-92d1-bdd9ae527ad6"
      unitRef="usd">1500000</us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities>
    <us-gaap:DebtDisclosureTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNjU_6bb8b603-cffc-49d3-a26c-e8dd24d384ba">Convertible Senior Notes&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). The aggregate principal amount of the 2026 notes includes $100&#160;million from the initial purchasers fully exercising their option to purchase additional notes. In March 2019, we issued $700 million in aggregate principal amount of 0.125%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total principal amount of $800 million. In April 2018, we issued&#160;$345 million in aggregate principal amount of&#160;0.25%&#160;convertible senior notes due in 2023 (2023 notes and together with the 2026 notes and the 2025 notes, the notes). The aggregate principal amount of the 2023 notes includes $45 million&#160;from the &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;initial purchasers fully exercising their option to purchase additional notes. The notes were issued in private placements to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933, as amended. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The total net proceeds from the notes are as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:62.350%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.600%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Principal amount&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,000,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;800,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;345,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Less initial purchasers&#x2019; discount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(15,000)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(18,998)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(8,625)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Less other issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(904)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(822)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(757)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net proceeds&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;984,096&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;780,180&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;335,618&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;During the three months ended March 31, 2021, in connection with our securities repurchase program, we extinguished $100.0&#160;million aggregate principal amount of the 2025 notes in privately-negotiated transactions for aggregate consideration of $184.9&#160;million, which was paid in cash. Upon execution, we concluded that the 2025 notes embedded conversion features no longer met the derivative scope exception and, as a result, initially recorded a derivative liability of $176.5&#160;million, related to the fair value of extinguished 2025 notes. We settled the derivative liability for aggregate consideration of $184.9&#160;million resulting in a $8.4&#160;million loss on change in fair value. The carrying amount of the 2025 notes subject to the extinguishment was $98.3&#160;million resulting in a $78.2&#160;million loss on early extinguishment of debt.  Additionally, during the three months ended March 31, 2021, we entered into 2025 notes capped call privately-negotiated transactions which terminated capped call transactions underlying 1,939,560 shares of our common stock and received aggregate cash proceeds of $23.9&#160;million. Upon execution, we concluded that the capped call transactions no longer met the derivative scope exception and, as a result recorded a derivative liability of $22.6&#160;million related to the fair value of terminated 2025 notes capped call transactions. We settled the capped call transactions for aggregate consideration of $23.9&#160;million resulting in a $1.3&#160;million gain on change in fair value.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The notes are our senior, unsecured obligations and are governed by indenture agreements by and between us and Wells Fargo Bank, National Association, as Trustee (the indentures). The 2026 notes bear no interest and will mature on September&#160;1, 2026, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2025 notes bear interest of 0.125% per year which is payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September&#160;15, 2019. The 2025 notes will mature on March&#160;15, 2025, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2023 notes bear interest of 0.25% per year which is payable semi-annually in arrears on May 15 and November 15 of each year, beginning on November&#160;15, 2018. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;During the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes, and therefore the 2023 notes continue to be convertible until May 18, 2021. We intend to settle the 2023 notes converted pursuant to our election of our option to redeem such 2023 notes through a combination of cash and shares on May 20, 2021. As a result, we have classified the remaining net carrying amount of 2023 notes as a current liability. Additionally, we entered into 2023 notes capped call privately negotiated transactions underlying the remaining outstanding principal amount of 2023 notes. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Each $1,000 principal amount of the 2026 notes will initially be convertible into 9.2978 shares of our common stock. This is equivalent to an initial conversion price of approximately $107.55 per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2025 notes will initially be convertible into 19.3956 shares of our common stock. This is equivalent to an initial conversion price of approximately $51.56 per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2023 notes will initially be convertible into 37.1051 shares of our common stock. This is equivalent to an initial conversion price of approximately $26.95 per share, which is subject to adjustment in certain circumstances.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Prior to the close of business on the business day immediately preceding June&#160;1, 2026 for the 2026 notes, December&#160;15, 2024 for the 2025 notes and February&#160;15, 2023 for the 2023 notes, the notes are convertible at the option of holders only upon satisfaction of the following circumstances:&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt;text-indent:13.5pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt;text-indent:-13.5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt"&gt;during any calendar quarter commencing after the calendar quarter ending on December 31, 2020 for the 2026 notes, June 30, 2019 for the 2025 notes, and June&#160;30, 2018 for the 2023 notes, if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the respective conversion price for the notes on each applicable trading day;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt;text-indent:-13.5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt"&gt;during the five-business day period after any 10 consecutive trading day period (the measurement period) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt;text-indent:-13.5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt"&gt;if we call any or all of the notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt;text-indent:-13.5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;&#x2022;&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt"&gt;upon the occurrence of certain specified corporate events described in the indentures.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%"&gt;On or after June&#160;1, 2026 for the 2026 notes, December&#160;15, 2024 for the 2025 notes and February&#160;15, 2023 for the 2023 notes until the close of business on the second scheduled trading day immediately preceding the respective maturity dates, holders may convert their notes at any time, regardless of the foregoing circumstances.&#160;Upon conversion, the notes may be settled in shares of our common stock, cash or a combination of cash and shares of our common stock, at our election.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;If we undergo a fundamental change, as defined in the indentures, prior to the respective maturity dates, subject to certain conditions, holders of the notes may require us to repurchase for cash all or any portion of their notes at a repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, if specific corporate events, described in the indentures, occur prior to the respective maturity dates, we will also increase the conversion rate for a holder who elects to convert their notes in connection with such specified corporate events.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The conditions allowing holders of the 2026 notes to convert were not met and therefore the 2026 notes are not convertible. The first circumstance noted above allowing holders of the 2025 notes to convert was met during the three months ended March 31, 2021, December 31, 2020 and September 30, 2020 and therefore, the 2025 notes were and are convertible starting October 1, 2020 through June 30, 2021. Aside from the extinguishment of $100.0&#160;million aggregate principal amount of the 2025 notes discussed above, we received immaterial requests for conversion of the 2025 notes which we settled in cash during the three months ended March 31, 2021 or intend to settle during the three months ending June 30, 2021. The 2023 notes were and are convertible starting April 1, 2019 through September 30, 2019 and from January 1, 2020 through May 18, 2021. During the three months ended March 31, 2021, we received $24.7&#160;million aggregate principal amount of requests for conversion of the 2023 notes. $4.7&#160;million aggregate principal amount was settled during the three months ended March 31, 2021 for aggregate consideration of $15.9&#160;million, consisting of $4.7&#160;million in cash and 126,003 shares of our common stock with a value of $11.2&#160;million. $20.0&#160;million aggregate principal amount was settled in April 2021 for aggregate consideration of $67.1&#160;million, consisting of $20.0&#160;million in cash and 529,611 shares of our common stock with a value of $47.1&#160;million. During the three months ended March 31, 2021, we terminated 2023 notes capped call transactions underlying 86,826 shares of our common stock and received cash proceeds of $0.9&#160;million. During the year ended December 31, 2020, in connection with our issuance of the 2026 notes, we exchanged $172.0&#160;million aggregate principal amount of the 2023 notes in privately-negotiated transactions for an aggregate consideration of $501.7&#160;million, consisting of $174.6&#160;million in cash and 4,182,320 shares of our common stock with a value of $327.1&#160;million.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The net carrying amount of the notes is as follows (in thousands): &lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:25.215%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.384%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.606%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020 &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Principal&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,000,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;699,995&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;110,896&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,000,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;800,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;115,576&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Unamortized debt discount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(226,732)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(149,138)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(9,953)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Unamortized issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(14,294)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(11,755)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,402)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(11,338)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(10,248)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,245)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net carrying amount&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;985,706&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;688,240&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;109,494&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;761,930&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;640,614&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;104,378&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, during the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes and we have classified the remaining net carrying amount of 2023 notes as a current liability.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the total interest expense recognized related to the notes (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:37.496%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.604%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="27" style="border-bottom:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="15" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020 &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Contractual interest expense&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;237&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;66&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;215&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Amortization of debt discount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;8,841&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,125&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Amortization of issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;650&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;808&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;168&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;608&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;372&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total interest expense&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;650&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,045&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;234&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;9,698&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,712&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="margin-top:5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Capped Call Transactions&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Concurrently with the offering of the 2026 notes, 2025 notes and 2023 notes, we used $103.4 million, $97.2 million and $39.2 million, respectively, of the net proceeds to enter into privately negotiated capped call transactions which are expected to generally reduce or offset potential dilution to holders of our common stock upon conversion of the notes and/or offset the potential cash payments we would be required to make in excess of the principal amount of any converted notes. The capped call transactions automatically exercise upon conversion of the notes and, and as of March&#160;31, 2021, cover&#160;9,297,800, 13,576,823 and 4,201,633&#160;shares of our common stock for the 2026 notes, 2025 notes and 2023 notes, respectively, and are intended to effectively increase the overall conversion price from&#160;$107.55 to $156.44 per share for the 2026 notes, $51.56 to $79.32 per share for the 2025 notes and $26.95&#160;to&#160;$40.68&#160;per share for the 2023 notes. The effective increase in conversion price as a result of the capped call transactions serves to reduce potential dilution to holders of our common stock and/or offset the cash payments we are required to make in excess of the principal amount of any converted notes. As these transactions meet certain accounting criteria, they are recorded in stockholders&#x2019; equity as a reduction of additional paid-in capital on our condensed consolidated balance sheets and are not accounted for as derivatives. The fair value of the capped call instrument is not remeasured each reporting period. The cost of the capped call is not expected to be deductible for tax purposes.&lt;/span&gt;&lt;/div&gt;</us-gaap:DebtDisclosureTextBlock>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNTY_1ea87bdc-5092-4aa6-a209-a95dfd4eb313"
      unitRef="usd">1000000000.0</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfOTI_632c0ebf-54fd-4e98-b8ba-8f0953676c67"
      unitRef="number">0</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i7f5901cc42994782bbb5a0bee3cfff73_I20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjAy_df21ec64-4991-40ee-b16e-bc72c8f66408"
      unitRef="usd">100000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzE4_1766597c-88b8-4d5c-b2bd-d2eeca868f2a"
      unitRef="usd">700000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzU0_7d22a062-633c-4522-911a-d58bb8aad5fb"
      unitRef="number">0.00125</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="ice301df70ab24ce782093b82b383deac_I20190430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDg4_a13c837f-cc71-4126-ac5e-26e7eb870476"
      unitRef="usd">100000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:ProceedsFromIssuanceOfDebt
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="-6"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNTU2_4aa8d45c-43ce-48c8-9d92-492c2fe46c37"
      unitRef="usd">800000000</us-gaap:ProceedsFromIssuanceOfDebt>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNTg1_d98e6058-eb9d-461b-82a0-1f3316c3d551"
      unitRef="usd">345000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNjIx_927f5d64-d1b8-4380-ad3c-fc67c453077a"
      unitRef="number">0.0025</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <chgg:DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes
      contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"
      decimals="-6"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNzMx_d298181a-0c90-4868-9020-42d0533b743b"
      unitRef="usd">45000000</chgg:DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes>
    <us-gaap:ScheduleOfDebtInstrumentsTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNjM_ca1690ad-926f-4f40-82f3-18b938fd6262">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The total net proceeds from the notes are as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:62.350%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.600%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Principal amount&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,000,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;800,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;345,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Less initial purchasers&#x2019; discount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(15,000)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(18,998)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(8,625)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Less other issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(904)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(822)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(757)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net proceeds&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;984,096&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;780,180&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;335,618&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfDebtInstrumentsTextBlock>
    <us-gaap:ProceedsFromIssuanceOfDebt
      contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMS0xLTEtMS0w_2041c798-bab6-4c71-90bd-3d6d72a0c642"
      unitRef="usd">1000000000</us-gaap:ProceedsFromIssuanceOfDebt>
    <us-gaap:ProceedsFromIssuanceOfDebt
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMS0zLTEtMS0w_1f18601b-4e4b-44db-8b56-8f7a78db240d"
      unitRef="usd">800000000</us-gaap:ProceedsFromIssuanceOfDebt>
    <us-gaap:ProceedsFromIssuanceOfDebt
      contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMS01LTEtMS0w_71e93316-400f-4251-a05a-fc1c0aa841ae"
      unitRef="usd">345000000</us-gaap:ProceedsFromIssuanceOfDebt>
    <chgg:PaymentsForInitialPurchasersDiscount
      contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMi0xLTEtMS0w_59c25bd9-47eb-4252-aa64-6df4406d16d3"
      unitRef="usd">15000000</chgg:PaymentsForInitialPurchasersDiscount>
    <chgg:PaymentsForInitialPurchasersDiscount
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMi0zLTEtMS0w_b4f589a8-fd2f-4898-aac0-3458b99cd9d4"
      unitRef="usd">18998000</chgg:PaymentsForInitialPurchasersDiscount>
    <chgg:PaymentsForInitialPurchasersDiscount
      contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMi01LTEtMS0w_a537d4a8-d19d-4dbf-ae73-26a33f9f2ead"
      unitRef="usd">8625000</chgg:PaymentsForInitialPurchasersDiscount>
    <us-gaap:PaymentsOfDebtIssuanceCosts
      contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMy0xLTEtMS0w_c213eb76-6b1b-46cf-9056-1d8f962c1b10"
      unitRef="usd">904000</us-gaap:PaymentsOfDebtIssuanceCosts>
    <us-gaap:PaymentsOfDebtIssuanceCosts
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMy0zLTEtMS0w_a184bda7-e1dc-47c5-971e-e9ad957c044f"
      unitRef="usd">822000</us-gaap:PaymentsOfDebtIssuanceCosts>
    <us-gaap:PaymentsOfDebtIssuanceCosts
      contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfMy01LTEtMS0w_f698c73e-8d31-4a7c-adbd-81bb48652845"
      unitRef="usd">757000</us-gaap:PaymentsOfDebtIssuanceCosts>
    <us-gaap:ProceedsFromDebtNetOfIssuanceCosts
      contextRef="i1a9c08e3930a454696936ce39d040109_D20200801-20200831"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfNC0xLTEtMS0w_9fcc4370-d83e-4803-b16e-4c2ce7eb8abb"
      unitRef="usd">984096000</us-gaap:ProceedsFromDebtNetOfIssuanceCosts>
    <us-gaap:ProceedsFromDebtNetOfIssuanceCosts
      contextRef="i02911a84aea94bf7a502b8af14157b5c_D20190401-20190430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfNC0zLTEtMS0w_eeb1cc10-65ae-4944-8599-9466c419d8ef"
      unitRef="usd">780180000</us-gaap:ProceedsFromDebtNetOfIssuanceCosts>
    <us-gaap:ProceedsFromDebtNetOfIssuanceCosts
      contextRef="i0e22de76fffd410b8b72e498b47c395b_D20180401-20180430"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjAzNmI2NGY0NDQwMTRkMmRiMTFhMjYwMzM5ZjZkOGNjL3RhYmxlcmFuZ2U6MDM2YjY0ZjQ0NDAxNGQyZGIxMWEyNjAzMzlmNmQ4Y2NfNC01LTEtMS0w_f74ad0cc-50c6-40c9-9cc4-7fa17f99dc06"
      unitRef="usd">335618000</us-gaap:ProceedsFromDebtNetOfIssuanceCosts>
    <us-gaap:DebtInstrumentRepurchasedFaceAmount
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTI5OA_25ca3883-a1cc-45e4-9144-07ed22975910"
      unitRef="usd">100000000.0</us-gaap:DebtInstrumentRepurchasedFaceAmount>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1Mzg1Mg_78bf91fd-adfc-4d22-92ca-7591c2c3d8ec"
      unitRef="usd">184900000</us-gaap:RepaymentsOfConvertibleDebt>
    <us-gaap:DerivativeLiabilities
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1MjUzNA_ea5d6a99-53a8-47a2-b69a-5188d50c70eb"
      unitRef="usd">176500000</us-gaap:DerivativeLiabilities>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1NDMzMA_78bf91fd-adfc-4d22-92ca-7591c2c3d8ec"
      unitRef="usd">184900000</us-gaap:RepaymentsOfConvertibleDebt>
    <us-gaap:GainLossOnSaleOfDerivatives
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1NDM0OQ_fec28981-2408-4a89-85a7-ab8c884456f9"
      unitRef="usd">-8400000</us-gaap:GainLossOnSaleOfDerivatives>
    <us-gaap:LongTermDebt
      contextRef="ib9b662aece0d46a79988a718b0b99422_I20200831"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTg4Mg_4bcb9293-b2bb-4616-a1a7-ad95065793d1"
      unitRef="usd">98300000</us-gaap:LongTermDebt>
    <us-gaap:GainsLossesOnExtinguishmentOfDebt
      contextRef="i6574eb7422664c0ea77ac87dd435bf45_D20200801-20200831"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTkwMA_1a93e6e9-034f-4a22-bdcc-cdedab3f52e1"
      unitRef="usd">-78200000</us-gaap:GainsLossesOnExtinguishmentOfDebt>
    <chgg:DebtInstrumentConvertibleSharesTerminated
      contextRef="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjA4OA_e0c0f5d1-6e60-40fd-8022-87bf25c4a044"
      unitRef="shares">1939560</chgg:DebtInstrumentConvertibleSharesTerminated>
    <us-gaap:ProceedsFromConvertibleDebt
      contextRef="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE0OA_b7f599f8-e2b3-4dff-8a8f-c50928c23dbc"
      unitRef="usd">23900000</us-gaap:ProceedsFromConvertibleDebt>
    <us-gaap:DerivativeLiabilities
      contextRef="i9c3b234009514f3898b6d6ff45a59e1d_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1MzIxOA_f2596312-5c06-4ac2-a54d-3c9e2f5414d1"
      unitRef="usd">22600000</us-gaap:DerivativeLiabilities>
    <us-gaap:ProceedsFromConvertibleDebt
      contextRef="ib39831bc3ce441bf9102234e3eefbdfa_D20200801-20200831"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY2NTYxOQ_19dfd30d-246f-4e24-ab73-5a0d8d5c873a"
      unitRef="usd">23900000</us-gaap:ProceedsFromConvertibleDebt>
    <us-gaap:GainLossOnSaleOfDerivatives
      contextRef="i34696a2cca2346dca5112aa5dc3cb215_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDk0NzgwMjM1Mzk3OA_7ee126ef-fb90-4367-83c4-f92d5c499608"
      unitRef="usd">1300000</us-gaap:GainLossOnSaleOfDerivatives>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i5e5e3fab2e7b491f8a3e926ce510b009_I20200831"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjUwNg_c6bd8348-5444-4f7d-a9ea-0139cdaf9290"
      unitRef="number">0</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i80e1f5b2a35b45048f65c3687c61b69f_I20190331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjY2Ng_7d22a062-633c-4522-911a-d58bb8aad5fb"
      unitRef="number">0.00125</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentInterestRateStatedPercentage
      contextRef="i33eb76f34ecd442e90d6db2f10a7d182_I20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjkyMw_927f5d64-d1b8-4380-ad3c-fc67c453077a"
      unitRef="number">0.0025</us-gaap:DebtInstrumentInterestRateStatedPercentage>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="i11978135b6904d1baefe472298180885_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzMyOQ_07fabccb-f552-4044-9d06-23969acfb275"
      unitRef="usdPerShare">107.55</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzU4MA_2fd3ff9f-8385-4490-b1a0-08e2fbd63e97"
      unitRef="usdPerShare">51.56</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMzgzMQ_2242cb27-8284-42f5-9ea9-6a4f1be8d24f"
      unitRef="usdPerShare">26.95</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleThresholdTradingDays
      contextRef="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDQwNw_824046e6-e3fb-491e-af08-310ac1399aa6"
      unitRef="day">20</us-gaap:DebtInstrumentConvertibleThresholdTradingDays>
    <us-gaap:DebtInstrumentConvertibleThresholdConsecutiveTradingDays1
      contextRef="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDQ3MQ_307037b1-be71-4743-909e-75105d448453"
      unitRef="day">30</us-gaap:DebtInstrumentConvertibleThresholdConsecutiveTradingDays1>
    <us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
      contextRef="i3e4c19624a3443328ca946a425a907ba_D20180401-20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDYyMA_95d5c148-2d70-4d6f-8503-7ff02fc19185"
      unitRef="number">1.30</us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger>
    <us-gaap:DebtInstrumentConvertibleThresholdTradingDays
      contextRef="i10ce0675335840e3b76aa5898c09c6f2_D20180401-20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDcxNQ_b21cd35a-2629-412b-aa86-fa7a81142b78"
      unitRef="day">5</us-gaap:DebtInstrumentConvertibleThresholdTradingDays>
    <us-gaap:DebtInstrumentConvertibleThresholdConsecutiveTradingDays1
      contextRef="i10ce0675335840e3b76aa5898c09c6f2_D20180401-20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDc0OA_f336c5c3-fc76-4c22-b764-02f1b2e920a1"
      unitRef="day">10</us-gaap:DebtInstrumentConvertibleThresholdConsecutiveTradingDays1>
    <us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
      contextRef="ic6bc0c34f9ba4685aac266aded393d33_D20180401-20180430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfNDkzMg_8b602064-7284-4c4e-8ce8-3198280af63d"
      unitRef="number">0.98</us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger>
    <us-gaap:DebtInstrumentRepurchasedFaceAmount
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY0Nzc0NA_25ca3883-a1cc-45e4-9144-07ed22975910"
      unitRef="usd">100000000.0</us-gaap:DebtInstrumentRepurchasedFaceAmount>
    <us-gaap:DebtConversionOriginalDebtAmount1
      contextRef="iebd16c25b055465eb3a3ee69e374cdf6_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1MzgzNg_0faa89c3-84d6-43e6-b12b-a8c81387a860"
      unitRef="usd">24700000</us-gaap:DebtConversionOriginalDebtAmount1>
    <us-gaap:DebtConversionOriginalDebtAmount1
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTM0NA_ea75eaf1-a37b-4e0d-b7e3-1964992ee9f0"
      unitRef="usd">4700000</us-gaap:DebtConversionOriginalDebtAmount1>
    <chgg:DebtInstrumentDebtConversionConsideration
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTQwMw_09f32a42-83cc-4d59-954b-a73689be9207"
      unitRef="usd">15900000</chgg:DebtInstrumentDebtConversionConsideration>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTE2MA_cd01c7d7-d19a-46ad-ac49-a1f9a178720f"
      unitRef="usd">4700000</us-gaap:RepaymentsOfConvertibleDebt>
    <chgg:DebtInstrumentDebtConversionEquityInstrumentsIssued
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTE3NA_9239f021-f706-4d53-8a45-0f21f13ac3ca"
      unitRef="shares">126003</chgg:DebtInstrumentDebtConversionEquityInstrumentsIssued>
    <chgg:DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTIwMw_f8430572-d178-4437-8f06-cccc78ea5b83"
      unitRef="usd">11200000</chgg:DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount>
    <us-gaap:DebtConversionOriginalDebtAmount1
      contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTQ1MQ_8372f9aa-a2ef-4a40-b042-0ffc40a0abbb"
      unitRef="usd">20000000.0</us-gaap:DebtConversionOriginalDebtAmount1>
    <chgg:DebtInstrumentDebtConversionConsideration
      contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTY5MQ_9fcf173c-25d6-47e8-9a4c-27182a43549b"
      unitRef="usd">67100000</chgg:DebtInstrumentDebtConversionConsideration>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTY2Nw_eb4702ac-277f-473a-8186-79c44dd06718"
      unitRef="usd">20000000.0</us-gaap:RepaymentsOfConvertibleDebt>
    <chgg:DebtInstrumentDebtConversionEquityInstrumentsIssued
      contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTY4Mg_b3167628-8d72-4443-92c6-39286be29ee5"
      unitRef="shares">529611</chgg:DebtInstrumentDebtConversionEquityInstrumentsIssued>
    <chgg:DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount
      contextRef="i37ed7d7686694b5b89c1bc0c59bf355a_D20210401-20210430"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY1OTcwNg_4d279aa6-2184-4bb4-bd85-3d9724185f6b"
      unitRef="usd">47100000</chgg:DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount>
    <chgg:DebtInstrumentConvertibleSharesTerminated
      contextRef="ifaff83de79ca489c9caeb776fad6cc1a_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY2MjUwOA_a1afa6eb-b935-465c-bc7f-2e8d99836611"
      unitRef="shares">86826</chgg:DebtInstrumentConvertibleSharesTerminated>
    <chgg:ProceedsFromCappedCall
      contextRef="ifaff83de79ca489c9caeb776fad6cc1a_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA5OTUxMTY2MjYxMA_2b97adb5-2cd7-4e68-af8a-615a0bddb635"
      unitRef="usd">900000</chgg:ProceedsFromCappedCall>
    <us-gaap:DebtInstrumentRepurchasedFaceAmount
      contextRef="ic2d348238f7a4e35a7a63b88419ea1b1_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTMxOA_377c7e9d-1622-401a-a5ed-6e06d5025244"
      unitRef="usd">172000000.0</us-gaap:DebtInstrumentRepurchasedFaceAmount>
    <chgg:DebtInstrumentPrincipalAmountExchangedConsiderationTransferred
      contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTM1MA_c655b39c-c57c-4fa2-89bf-08441707631d"
      unitRef="usd">501700000</chgg:DebtInstrumentPrincipalAmountExchangedConsiderationTransferred>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTMzNA_c642a14c-95c5-4068-86ff-a4ae597e8bcc"
      unitRef="usd">174600000</us-gaap:RepaymentsOfConvertibleDebt>
    <us-gaap:DebtConversionConvertedInstrumentSharesIssued1
      contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTM4Mg_ae9fc18c-e36b-49fe-99e2-58f261d05c12"
      unitRef="shares">4182320</us-gaap:DebtConversionConvertedInstrumentSharesIssued1>
    <chgg:DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable
      contextRef="i5b94f476516c4630b4731e9319b8443a_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMjE5OTAyMzMwMTM2Ng_c679c8c2-789a-409b-bda7-b29db6723fdf"
      unitRef="usd">327100000</chgg:DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable>
    <us-gaap:ScheduleOfDebtTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNTQ_c5ffbceb-6225-483e-ace9-93f01a90d05e">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The net carrying amount of the notes is as follows (in thousands): &lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:25.215%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.384%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.606%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="15" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;December 31, 2020 &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Principal&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,000,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;699,995&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;110,896&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,000,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;800,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;115,576&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Unamortized debt discount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(226,732)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(149,138)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(9,953)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Unamortized issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(14,294)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(11,755)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,402)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(11,338)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(10,248)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,245)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Net carrying amount&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;985,706&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;688,240&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;109,494&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;761,930&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;640,614&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;104,378&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, during the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes and we have classified the remaining net carrying amount of 2023 notes as a current liability.&lt;/span&gt;&lt;/div&gt;</us-gaap:ScheduleOfDebtTableTextBlock>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i11978135b6904d1baefe472298180885_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi0xLTEtMS0w_336d47f4-cc00-4be4-8afe-e6e0662e8065"
      unitRef="usd">1000000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi0zLTEtMS0w_fc4e4590-b69e-44ec-9526-a009ff50e2a9"
      unitRef="usd">699995000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi01LTEtMS0w_59e26fff-4ae3-4352-a408-5ed7b6b21ca3"
      unitRef="usd">110896000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi03LTEtMS04NTEw_284fb023-a60c-488f-8b4a-f9a6817ba0fe"
      unitRef="usd">1000000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi03LTEtMS0w_0c44f711-52fe-4ebc-8276-b0aef2a6a130"
      unitRef="usd">800000000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentFaceAmount
      contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMi05LTEtMS0w_b2033765-d238-41a3-919f-b97c38e223b0"
      unitRef="usd">115576000</us-gaap:DebtInstrumentFaceAmount>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i11978135b6904d1baefe472298180885_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy0xLTEtMS0w_7cbb2803-8034-4e9f-baa4-411a28fe21ac"
      unitRef="usd">0</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy0zLTEtMS0w_237e5c68-6120-4fab-b34a-364eff2f5c4b"
      unitRef="usd">0</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy01LTEtMS0w_11d9dfaf-2641-430a-ac92-db2f7cc3d0f5"
      unitRef="usd">0</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy03LTEtMS04NTEw_7cb5375e-b063-4d33-81f7-56e17cbf1e87"
      unitRef="usd">226732000</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy03LTEtMS0w_fee7ed31-f483-4d36-a534-2645c3dcbfec"
      unitRef="usd">149138000</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet
      contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfMy05LTEtMS0w_80a17609-988e-411f-917e-4051f93a5b33"
      unitRef="usd">9953000</us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i11978135b6904d1baefe472298180885_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC0xLTEtMS0w_b0d71d94-8d16-479a-b478-e719618f25e6"
      unitRef="usd">14294000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC0zLTEtMS0w_9a1c7a0b-6092-4cfe-a1a0-0b234ffd3ffc"
      unitRef="usd">11755000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC01LTEtMS0w_29cb0293-10b7-41e1-9f73-7f6730b647ed"
      unitRef="usd">1402000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i6ac85422e9e147bcab681b82c42254bf_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC03LTEtMS04NTEw_83102051-e7fe-401c-9c45-6900b5201ecc"
      unitRef="usd">11338000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i1d6faed51c5b4c49a7213bd95e18e36b_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC03LTEtMS0w_9d368f14-3eda-4f11-8e95-8687db0fdbc6"
      unitRef="usd">10248000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DeferredFinanceCostsNet
      contextRef="i8be3c90a533a45ac87d64e719c751f88_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNC05LTEtMS0w_7c288f52-afe5-4a36-9c74-9a9cddedc68b"
      unitRef="usd">1245000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:LongTermDebtFairValue
      contextRef="iddbcfc913c1248099d6e071eab53ebd8_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS0xLTEtMS0w_ec07a13c-a6ad-46ef-9211-38f858fd89ac"
      unitRef="usd">985706000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i3a5ce7f3425745f381b986d2dcc4e04e_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS0zLTEtMS0w_2406b6f3-3194-4545-83ff-a162a93899bf"
      unitRef="usd">688240000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i262c95c8588a42f3902ea5c2cd1a24c0_I20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS01LTEtMS0w_3259a95d-5bb4-4432-9b0b-1ffaa4126a3e"
      unitRef="usd">109494000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="iac7af935c18447548371b256fa5adc25_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS03LTEtMS04NTEw_6bb22b05-9c98-4a90-b021-122eace3e4e0"
      unitRef="usd">761930000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i707cf4308ed9453cb40bc27962b1a349_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS03LTEtMS0w_da14681e-8cf8-4cf0-b712-aa13b01fda0b"
      unitRef="usd">640614000</us-gaap:LongTermDebtFairValue>
    <us-gaap:LongTermDebtFairValue
      contextRef="i756b589cc250419ea816398952a55f38_I20201231"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOmEwMWI4NDI0NTI2OTRmNzA4MzRjN2JmNzJjYWNlZjIyL3RhYmxlcmFuZ2U6YTAxYjg0MjQ1MjY5NGY3MDgzNGM3YmY3MmNhY2VmMjJfNS05LTEtMS0w_ccb62fd2-a50a-4425-b427-d9abb0f7034a"
      unitRef="usd">104378000</us-gaap:LongTermDebtFairValue>
    <chgg:ScheduleOfInterestExpenseRecognizedTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTIwNjk_ddee25f1-b044-41d5-b6e6-67c2354560dc">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table sets forth the total interest expense recognized related to the notes (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt;text-align:center"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:37.496%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.604%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="27" style="border-bottom:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="15" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;div style="text-align:center"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020 &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2026 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2025 Notes&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2023 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Contractual interest expense&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;237&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;66&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;215&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Amortization of debt discount&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;8,841&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,125&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Amortization of issuance costs&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;650&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;808&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;168&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;608&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;372&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total interest expense&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;650&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,045&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;234&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;9,698&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3,712&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="margin-top:5pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1)&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt; As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.&lt;/span&gt;&lt;/div&gt;</chgg:ScheduleOfInterestExpenseRecognizedTableTextBlock>
    <us-gaap:InterestExpenseDebtExcludingAmortization
      contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy0xLTEtMS0w_a8f8b821-d648-48e8-8447-ce79e6d08b41"
      unitRef="usd">0</us-gaap:InterestExpenseDebtExcludingAmortization>
    <us-gaap:InterestExpenseDebtExcludingAmortization
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy0zLTEtMS0w_d256d491-9846-4d36-963d-50b77ab73516"
      unitRef="usd">237000</us-gaap:InterestExpenseDebtExcludingAmortization>
    <us-gaap:InterestExpenseDebtExcludingAmortization
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy01LTEtMS0w_346f3ba8-dec8-4712-bf25-8f4f1382caf1"
      unitRef="usd">66000</us-gaap:InterestExpenseDebtExcludingAmortization>
    <us-gaap:InterestExpenseDebtExcludingAmortization
      contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy03LTEtMS0w_3cc826bc-29cf-4edf-8376-1dc43cdcd25f"
      unitRef="usd">249000</us-gaap:InterestExpenseDebtExcludingAmortization>
    <us-gaap:InterestExpenseDebtExcludingAmortization
      contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfMy05LTEtMS0w_f8a660e1-e61b-446f-aa83-4d03e7369c36"
      unitRef="usd">215000</us-gaap:InterestExpenseDebtExcludingAmortization>
    <us-gaap:AmortizationOfDebtDiscountPremium
      contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC0xLTEtMS0w_dfb36922-2f10-4309-9569-f8389eb1e0c2"
      unitRef="usd">0</us-gaap:AmortizationOfDebtDiscountPremium>
    <us-gaap:AmortizationOfDebtDiscountPremium
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC0zLTEtMS0w_641f92af-6c84-4596-ba37-8bac161bd6fe"
      unitRef="usd">0</us-gaap:AmortizationOfDebtDiscountPremium>
    <us-gaap:AmortizationOfDebtDiscountPremium
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC01LTEtMS0w_6db293b0-3921-46c7-8d95-7fadf43390e3"
      unitRef="usd">0</us-gaap:AmortizationOfDebtDiscountPremium>
    <us-gaap:AmortizationOfDebtDiscountPremium
      contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC03LTEtMS0w_9dbaff71-ab96-4ce8-9453-b6168818c6f1"
      unitRef="usd">8841000</us-gaap:AmortizationOfDebtDiscountPremium>
    <us-gaap:AmortizationOfDebtDiscountPremium
      contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNC05LTEtMS0w_7eeb8c33-2bab-4bb1-b939-d28f48cb0bf9"
      unitRef="usd">3125000</us-gaap:AmortizationOfDebtDiscountPremium>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS0xLTEtMS0w_2e221ef5-bd7a-4883-ba3b-67b063084766"
      unitRef="usd">650000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS0zLTEtMS0w_7269571e-fcfd-4fb0-9464-04ba5b741b74"
      unitRef="usd">808000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS01LTEtMS0w_c7cf559f-4e43-4036-8b25-e3a7b818c7fd"
      unitRef="usd">168000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS03LTEtMS0w_23c786cf-f6b4-419c-a8a3-3f2ead19cd5b"
      unitRef="usd">608000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNS05LTEtMS0w_ae4ba563-d4e4-45de-9220-e31636ce0969"
      unitRef="usd">372000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:InterestExpenseDebt
      contextRef="ic913f67407734139bb465a041bd7b56a_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi0xLTEtMS0w_8b158907-33c2-4267-80f8-238069788107"
      unitRef="usd">650000</us-gaap:InterestExpenseDebt>
    <us-gaap:InterestExpenseDebt
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi0zLTEtMS0w_6b1d4c44-db54-4694-ad22-d00e93dde541"
      unitRef="usd">1045000</us-gaap:InterestExpenseDebt>
    <us-gaap:InterestExpenseDebt
      contextRef="i828489fc9bf54ed39b281345555df08c_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi01LTEtMS0w_3eef37ec-5bec-4d14-9307-31d73089af21"
      unitRef="usd">234000</us-gaap:InterestExpenseDebt>
    <us-gaap:InterestExpenseDebt
      contextRef="i568f5741347647b8927ee0b75dd20526_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi03LTEtMS0w_554e2f84-2ee0-4c63-84ca-01db7a19c22a"
      unitRef="usd">9698000</us-gaap:InterestExpenseDebt>
    <us-gaap:InterestExpenseDebt
      contextRef="ib34b2a1e575e4dd8838e82e62930828a_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RhYmxlOjVmMGNhNGFmNjMxMTQzOGI4ZWQ4MjAwNDRjZjgyMzg3L3RhYmxlcmFuZ2U6NWYwY2E0YWY2MzExNDM4YjhlZDgyMDA0NGNmODIzODdfNi05LTEtMS0w_c6cf391f-c56f-44da-b8b9-c58e5111de94"
      unitRef="usd">3712000</us-gaap:InterestExpenseDebt>
    <us-gaap:ProceedsFromDebtNetOfIssuanceCosts
      contextRef="if40b6a70d0ee4fb2bc84c7a1eca79711_D20200801-20200831"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA2NDQ_860b15aa-008e-4466-a705-7fc18032f0bc"
      unitRef="usd">103400000</us-gaap:ProceedsFromDebtNetOfIssuanceCosts>
    <us-gaap:ProceedsFromDebtNetOfIssuanceCosts
      contextRef="ib1eb4154732349119fdba5d7d7c90012_D20190401-20190430"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA2NDg_5ede52a0-faf1-490c-a630-f37de6c3a56b"
      unitRef="usd">97200000</us-gaap:ProceedsFromDebtNetOfIssuanceCosts>
    <us-gaap:ProceedsFromDebtNetOfIssuanceCosts
      contextRef="idd446d0d3ca14b7bb7dc83fe63327303_D20180401-20180430"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTA2NTU_ca7c617e-98ec-4503-97b6-4497bb63cafc"
      unitRef="usd">39200000</us-gaap:ProceedsFromDebtNetOfIssuanceCosts>
    <chgg:DebtInstrumentConvertibleShares
      contextRef="id8786dbc8fd440b79f10ef7c37a3f18c_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTExMDE_2678b374-fd18-4c24-a97b-0238e525764b"
      unitRef="shares">9297800</chgg:DebtInstrumentConvertibleShares>
    <chgg:DebtInstrumentConvertibleShares
      contextRef="i9c3b234009514f3898b6d6ff45a59e1d_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTExMDU_c8626b7f-0b90-4f10-850a-212e44bccbf4"
      unitRef="shares">13576823</chgg:DebtInstrumentConvertibleShares>
    <chgg:DebtInstrumentConvertibleShares
      contextRef="i58eef5d33dcc48688b91d17c94e15621_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTExMTI_e3a978f4-79e8-4892-ad8a-6da0541c3fda"
      unitRef="shares">4201633</chgg:DebtInstrumentConvertibleShares>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="i11978135b6904d1baefe472298180885_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEyNzg_07fabccb-f552-4044-9d06-23969acfb275"
      unitRef="usdPerShare">107.55</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="id8786dbc8fd440b79f10ef7c37a3f18c_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEyODQ_dd128716-9437-49c5-b572-921685ff39f9"
      unitRef="usdPerShare">156.44</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzMTc_2fd3ff9f-8385-4490-b1a0-08e2fbd63e97"
      unitRef="usdPerShare">51.56</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="i9c3b234009514f3898b6d6ff45a59e1d_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzMjM_62463b6b-319f-4881-8079-dccc0a432a6d"
      unitRef="usdPerShare">79.32</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="i410ce183bcb543a99809da1a26c8de34_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzNTk_2242cb27-8284-42f5-9ea9-6a4f1be8d24f"
      unitRef="usdPerShare">26.95</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:DebtInstrumentConvertibleConversionPrice1
      contextRef="i58eef5d33dcc48688b91d17c94e15621_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl81OC9mcmFnOjkxYWExY2E0ZGVlYTRmNGRhZGFiY2IzYzg3NGYyODlmL3RleHRyZWdpb246OTFhYTFjYTRkZWVhNGY0ZGFkYWJjYjNjODc0ZjI4OWZfMTEzNjU_c5092c8b-445c-4920-89a0-ca600f3dd418"
      unitRef="usdPerShare">40.68</us-gaap:DebtInstrumentConvertibleConversionPrice1>
    <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfODY4_dbfbe146-cc81-4ccb-adfd-a60a3447385b">Commitments and Contingencies&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;From time to time, third parties may assert patent infringement claims against us in the form of letters, litigation, or other forms of communication. In addition, we may from time to time be subject to other legal proceedings and claims in the ordinary course of business, including claims of alleged infringement of trademarks, copyrights, and other intellectual property rights; employment claims; and general contract or other claims. We may also, from time to time, be subject to various legal or government claims, disputes, or investigations. Such matters may include, but not be limited to, claims, disputes, or investigations related to warranty, refund, breach of contract, employment, intellectual property, government regulation, or compliance or other matters.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On December 1, 2020, we received notice that a class action lawsuit was filed against Chegg in New York alleging violations of the American with Disabilities Act. The claim asserted that one of Chegg&#x2019;s websites is not compatible with software used by vision-impaired individuals. During the three months ended March 31, 2021, we settled this matter for an immaterial amount. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On August 18, 2020, we received notice that a class action lawsuit was filed against Chegg in California alleging violations of the Unruh Civil Rights Act. The claim asserted that one of Chegg&#x2019;s websites is not compatible with software used by vision-impaired individuals. During the three months ended March 31, 2021, we settled this matter for an immaterial amount.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On July 21, 2020, VitalSource Technologies LLC (VST), which is wholly owned by Ingram Industries Inc., filed a complaint against Chegg alleging that Chegg breached its contract with VST involving the development of an eTextbook reader and eTextbook reader platform. The suit sought  uncertain damages, but the complaint alleged that they exceeded $75,000. During the three months ended March 31, 2021, we recorded an immaterial loss contingency accrual and subsequently settled this matter in April 2021. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On June 18, 2020, we received a Civil Investigative Demand (CID) from the Federal Trade Commission (FTC) to determine whether we may have violated Section 5 of the FTC Act or the Children's Online Privacy Protection Act (COPPA), as they relate to deceptive or unfair acts or practices related to consumer privacy and/or data security. Pursuant to the CID, the FTC has requested responses to interrogatories and the production of documents pertaining to data breach incidents and our &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;data security and privacy practices generally. Efforts are currently underway to collect the documents and information requested after reaching an agreement with the FTC on the order and timing of our responses.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On May 12, 2020, we received notice that 15,107 arbitration demands were filed against us by individuals represented by the same legal counsel, each alleging to have suffered more than $25,000 in damages as a result of the 2018 Data Incident. On July 1, 2020, an additional 1,007 arbitration demands were filed by the same counsel. On August 12, 2020, an additional 577 arbitration demands were filed by the same counsel; cases have been filed by the same counsel in Maryland and California.&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We dispute that these claimants have a valid basis for seeking arbitration, assert that they have acted in bad faith and are working with the Maryland and California courts and plaintiffs&#x2019; counsel on resolution of these claims. During the three months ended March 31, 2021, we recorded a loss contingency accrual and a corresponding insurance loss recovery, the net impact of which did not materially impact our condensed consolidated statements of operations. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;On November 5, 2018, NetSoc, LLC (NetSoc) filed a complaint against us in the U.S. District Court for the Southern District of New York (SDNY) for patent infringement alleging that the Chegg Tutors service infringes U.S. Patent No. 9.978,107 and seeking unspecified compensatory damages. A responsive pleading was filed on February 19, 2019. On January 13, 2020, the SDNY issued an order dismissing the case as to Chegg. On January 30, 2020, NetSoc appealed the dismissal. On April 21, 2020, the SDNY granted Chegg's motion to hold NetSoc's appeal in abeyance pending the outcome of an appeal in the litigation above. On December 2, 2020, the U.S. Patent and Trademark Office determined that the patent is invalid based on two Inter Partes Review (IPR) proceedings and on January 4, 2021, NetSoc filed a notice of appeal appealing the IPR decision.&lt;/span&gt;&lt;/div&gt;Aside from the loss contingency accruals for the VST and 2018 Data Incident matters, we have not recorded any additional amounts related to the above matters as we do not believe that a loss is probable in these remaining matters. We are not aware of any other pending legal matters or claims, individually or in the aggregate, that are expected to have a material adverse impact on our condensed consolidated financial position, results of operations, or cash flows. However, our analysis of whether a claim will proceed to litigation cannot be predicted with certainty, nor can the results of litigation be predicted with certainty. Nevertheless, defending any of these actions, regardless of the outcome, may be costly, time consuming, distract management personnel and have a negative effect on our business. An adverse outcome in any of these actions, including a judgment or settlement, may cause a material adverse effect on our future business, operating results and/or financial condition.</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
    <us-gaap:LossContingencyEstimateOfPossibleLoss
      contextRef="i56c8d4a014af47a0aae4b5b8cec5e57e_I20200721"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTYzNjA1MA_94a50b94-0ee0-48e1-af21-4e26a1ab3007"
      unitRef="usd">75000</us-gaap:LossContingencyEstimateOfPossibleLoss>
    <us-gaap:LossContingencyNewClaimsFiledNumber
      contextRef="i41662b440e844378b83b68a464408983_D20200512-20200512"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTE5Nw_aea98803-2fd5-4285-bb2b-75ae6c894d6e"
      unitRef="numberofplaintiffs">15107</us-gaap:LossContingencyNewClaimsFiledNumber>
    <us-gaap:LossContingencyDamagesSoughtValue
      contextRef="i41662b440e844378b83b68a464408983_D20200512-20200512"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTIxMw_d3afa248-350f-48c9-9e22-9e2954ea8e52"
      unitRef="usd">25000</us-gaap:LossContingencyDamagesSoughtValue>
    <us-gaap:LossContingencyNewClaimsFiledNumber
      contextRef="ic9f1749896224651875bc489f30602b9_D20200701-20200701"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTIyOA_897325bd-40bb-4d20-9089-bc5d6c2be98c"
      unitRef="numberofplaintiffs">1007</us-gaap:LossContingencyNewClaimsFiledNumber>
    <us-gaap:LossContingencyNewClaimsFiledNumber
      contextRef="iffcce83a3e0a48929e979c62d5fe0feb_D20200812-20200812"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl82Ny9mcmFnOjZkYTA1ZDlhYTcwZjRiYjc4NDkzZmViZjk4NzA1OTdkL3RleHRyZWdpb246NmRhMDVkOWFhNzBmNGJiNzg0OTNmZWJmOTg3MDU5N2RfMTA5OTUxMTY0MTIzOQ_1b0241c0-cf86-47dc-a5c2-df884164d85c"
      unitRef="numberofplaintiffs">577</us-gaap:LossContingencyNewClaimsFiledNumber>
    <chgg:GuaranteesAndIndemnificationsTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83MC9mcmFnOjI1MTFlOWY1Yjk1ZDRjOTU5NjZkZjliMjBlZmMxYWZiL3RleHRyZWdpb246MjUxMWU5ZjViOTVkNGM5NTk2NmRmOWIyMGVmYzFhZmJfOTUw_6deb599a-f608-47b3-8fd0-901d044c121f">Guarantees and Indemnifications&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We have agreed to indemnify our directors and officers for certain events or occurrences, subject to certain limits, while such persons are or were serving at our request in such capacity. We may terminate the indemnification agreements with these persons upon termination of employment, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination. We have a directors&#x2019; and officers&#x2019; insurance policy that limits our potential exposure up to the limits of our insurance coverage. In addition, we also have other indemnification agreements with various vendors against certain claims, liabilities, losses, and damages. The maximum amount of potential future indemnification is unlimited.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;We believe the fair value of these indemnification agreements is minimal. We have not recorded any liabilities for these agreements as of March&#160;31, 2021.&lt;/span&gt;&lt;/div&gt;</chgg:GuaranteesAndIndemnificationsTextBlock>
    <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE4Mw_6744e99e-9860-4983-8300-0b0a8ad276cc">Stockholders' Equity&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Equity Offering&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In February 2021, we entered into an underwriting agreement pursuant to which we agreed to issue and sell 10,974,600 shares of our common stock at a public offering price of $102.00 per share generating aggregate net proceeds of $1,091.5&#160;million, after deducting underwriting discounts and commissions of $26.9&#160;million and offering expenses of $1.1&#160;million.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Securities Repurchase Program&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In June 2020, our board of directors approved a securities repurchase program authorizing our repurchase of up to $500.0&#160;million of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements. The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors. During the three months ended March 31, 2021, we repurchased $100.0&#160;million of aggregate principal amount of the 2025 notes in privately-negotiated transactions for an &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;aggregate consideration of $184.9&#160;million. $165.5&#160;million remains under the repurchase program, which will end on December 31, 2021.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"&gt;Share-based Compensation Expense&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cost of revenues&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;362&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;169&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Research and development&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;7,959&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;6,991&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Sales and marketing&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,919&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,186&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;General and administrative&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;11,860&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;8,988&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total share-based compensation expense&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;23,100&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;18,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;During the three months ended March 31, 2021, we capitalized $0.5&#160;million of share-based compensation expense.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;2021 PSU Grants with Market-Based Conditions&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In March 2021, we granted PSUs under the 2013 Equity Incentive Plan (the 2013 Plan) with market-based conditions to certain of our key employees. The number of shares of our common stock that may be issued to settle these PSUs range from 50% at the threshold level to 150% at the maximum level of the 100% target level of the award depending on achieving a maximum average market value of the per share price of our common stock, for a period of 60 consecutive trading days, over a three-year performance period ending on the third anniversary of the date of grant. No payout will be made for performance below the 50% threshold level. The market value of the per share price of our common stock must reach $123.81, $148.58, or $173.34 at the threshold, target, or maximum levels, respectively, for achievement of the award, which could result in issuance of 244,086, 488,173, or 732,260 shares of our common stock at each respective payout level. These PSUs will vest over a four-year period, with the initial vesting of 50% of the award occurring in March 2024. The number of PSUs granted totaled 732,260 shares, which represents the maximum number of shares, and had a grant date fair value of $68.55 per share, determined under the Monte Carlo simulation approach and described further below. As of March&#160;31, 2021, the market-based conditions have not been met.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Fair Value of PSUs with Market-Based Conditions&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;PSUs with market-based conditions are converted into shares of our common stock upon vesting on a one-for-one basis. Vesting is subject to the achievement of certain share price targets and the employee's continuing service to us. If the share price targets are achieved, the awards vest over a four-year period. We estimate the fair value of the PSUs using a Monte Carlo simulation approach, which utilizes the fair value of our common stock based on active market and requires input on the following subjective assumptions:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"&gt;Expected Term&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;.&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The expected term for the awards is the performance period of three years.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"&gt;Expected Volatility&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;.&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt; &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The expected volatility is based on the historical average volatility of our stock price over the expected term.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"&gt;Expected Dividends&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;. &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The dividend assumption is based on our historical experience. To date we have not paid any dividends on our common stock.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline"&gt;Risk-Free Interest Rate&lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;. &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The risk-free interest rate used in the valuation method is the implied yield currently available on the U.S. treasury zero-coupon issues, with a remaining term equal to the expected term.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes the key assumptions used to determine the fair value of the awards:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:84.280%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:13.520%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Expected term (years)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3.00&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Expected volatility&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;49.04&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Dividend yield&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Risk-free interest rate&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;0.27&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;2021 PSU Grants with Financial and Strategic Performance Targets&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;In March 2021, we granted PSUs under the 2013 Plan to certain of our key executives. These PSUs entitle the executives to receive a certain number of shares of our common stock based on our satisfaction of certain financial and strategic performance targets during 2021. These PSUs will vest over a three-year period, with the initial vesting occurring in March 2022. The number of shares underlying these March 2021 PSUs granted totaled 278,644 shares and had a grant date fair value of $99.05 per share. As of March&#160;31, 2021, the performance-based milestones are expected to be met at the maximum threshold, resulting in full achievement of these PSUs.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;Fair Value of PSUs with Financial and Strategic Performance Targets and RSUs&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;PSUs with financial and strategic performance targets and RSUs are converted into shares of our common stock upon vesting on a one-for-one basis. Vesting of PSUs is subject to our achievement of specified financial and strategic performance targets in addition to the employee's continuing service to us while vesting of RSUs is subject to the employee&#x2019;s continuing service to us. PSUs vest subject to the achievement of performance objectives and if achieved, typically vest over three years while RSUs are typically fully vested at the end of &lt;span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDYzMg_7f49de0b-bd54-4373-8afe-28d7d153a634"&gt;three&lt;/span&gt; or four years. We assess the achievement of financial and strategic performance targets on a quarterly basis and adjust our share-based compensation expense as appropriate.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"&gt;RSU and PSU Activity&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Activity for RSUs and PSUs is as follows:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;RSUs and PSUs&#160;Outstanding&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Shares Outstanding&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Weighted Average Grant&#160;Date Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Balance at December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,816,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;37.82&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Granted&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,885,015&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;87.14&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Released&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,426,075)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;29.29&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Canceled&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(173,936)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38.79&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Balance at March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;5,101,004&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;58.39&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;As of March&#160;31, 2021, our total unrecognized share-based compensation expense related to RSUs and PSUs was approximately $206.4 million, which will be recognized over the remaining weighted-average vesting period of approximately 2.3 years.&lt;/span&gt;&lt;/div&gt;</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
    <us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction
      contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzA3MQ_01f759f6-894e-4b47-b276-f0b510398cc6"
      unitRef="shares">10974600</us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction>
    <us-gaap:SaleOfStockPricePerShare
      contextRef="ieace5e8c8a9b4b789b505aefcd900af2_I20210228"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzEzMg_90f6401e-1a55-4b78-9be8-f5ed833b6723"
      unitRef="usdPerShare">102.00</us-gaap:SaleOfStockPricePerShare>
    <us-gaap:SaleOfStockConsiderationReceivedOnTransaction
      contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQwOA_c7e20020-c38b-412b-965d-34d9d9b959ba"
      unitRef="usd">1091500000</us-gaap:SaleOfStockConsiderationReceivedOnTransaction>
    <chgg:SaleOfStockUnderwritingDiscountsAndCommissions
      contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzI0Ng_d80a02d4-fd00-4eb6-9958-912fc623d63c"
      unitRef="usd">26900000</chgg:SaleOfStockUnderwritingDiscountsAndCommissions>
    <chgg:SaleOfStockOfferingExpenses
      contextRef="i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0NzI3NQ_00d9a511-18fa-496b-8d1f-6fab41796ce6"
      unitRef="usd">1100000</chgg:SaleOfStockOfferingExpenses>
    <us-gaap:StockRepurchaseProgramAuthorizedAmount1
      contextRef="i4d2401de5ba546d390f5e9974709da7f_I20200630"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjA3_72060fb2-f263-4fba-9392-068a54cbfc05"
      unitRef="usd">500000000.0</us-gaap:StockRepurchaseProgramAuthorizedAmount1>
    <us-gaap:DebtInstrumentRepurchasedFaceAmount
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzNTI3NA_25ca3883-a1cc-45e4-9144-07ed22975910"
      unitRef="usd">100000000.0</us-gaap:DebtInstrumentRepurchasedFaceAmount>
    <us-gaap:RepaymentsOfConvertibleDebt
      contextRef="i888f8ef24ecb4f57a30519b5286d3b3d_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzNTI2MA_78bf91fd-adfc-4d22-92ca-7591c2c3d8ec"
      unitRef="usd">184900000</us-gaap:RepaymentsOfConvertibleDebt>
    <us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
      contextRef="i12c51d956373407db8eea0de5a215709_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzNTI2Mw_7889f18e-8070-46bf-b414-291bbc4f7392"
      unitRef="usd">165500000</us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1>
    <us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE5Ng_72f7f4d0-d7ce-4473-b43b-4f2eb6c8d875">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Cost of revenues&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;362&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;169&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Research and development&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;7,959&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;6,991&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Sales and marketing&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,919&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;2,186&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;General and administrative&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;11,860&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;8,988&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Total share-based compensation expense&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;23,100&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;18,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="i63edd251631c4b27981b515396ee4012_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMi0xLTEtMS0w_7d6909bd-73ae-4f1f-b5b7-15c6c2ebc92a"
      unitRef="usd">362000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="idba69f9a905a4c27be84a508ebace169_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMi0zLTEtMS0w_404c9a27-eb0c-48b6-b0ce-87cbc0b06cc7"
      unitRef="usd">169000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="iba7cf555c40c42d5a91d5737fa16046c_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMy0xLTEtMS0w_86389647-26ea-427b-b509-dc2d6efc197b"
      unitRef="usd">7959000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="id22893a050e04088a0e4abee10ef4f5a_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfMy0zLTEtMS0w_ad653cdc-acbf-453c-9eb5-8f0a68d2f02e"
      unitRef="usd">6991000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="i92ada1088fd34a1e9215923abc72ffef_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNC0xLTEtMS0w_8ce877ba-24e5-4230-af63-16c2c8c5cb3b"
      unitRef="usd">2919000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="idf89328053f443069bfc56c2b10e490b_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNC0zLTEtMS0w_3c38613d-3f3f-4554-8fbf-8b2291b474f6"
      unitRef="usd">2186000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="iff0c34d13b0a4cc0929ae2febc24d361_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNS0xLTEtMS0w_bc81c5a5-7158-4f19-a6f8-492f8475726c"
      unitRef="usd">11860000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="ifde7b8c3a47b413a93d130cc884255b9_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNS0zLTEtMS0w_dec11d07-ac2f-4c1b-b719-a99ff6ff611d"
      unitRef="usd">8988000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNi0xLTEtMS0w_fc17d5db-63d1-482b-90b6-6f1844f07040"
      unitRef="usd">23100000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:AllocatedShareBasedCompensationExpense
      contextRef="ib3e306349d014caa82fc26236c5cb1dc_D20200101-20200331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOmYxZDUzNTJjYzBhMDRiZTFiNTJmNmIzZDEwYWY3MDYxL3RhYmxlcmFuZ2U6ZjFkNTM1MmNjMGEwNGJlMWI1MmY2YjNkMTBhZjcwNjFfNi0zLTEtMS0w_5818ce8a-e2d8-4dde-88c7-9e9886653f97"
      unitRef="usd">18334000</us-gaap:AllocatedShareBasedCompensationExpense>
    <us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY1NjcwMw_37adc496-5267-4f70-9158-4654913c752b"
      unitRef="usd">500000</us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue
      contextRef="i86b8ea162c34436688b9d0c26384fb42_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0OTI3MQ_1e00275c-97a9-42d4-b3fc-3ab570d65bae"
      unitRef="number">0.50</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue
      contextRef="i7f3824120c674d758a0e7546dab59828_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0OTI3OA_bfe50551-50a6-43b9-8b9f-f11c86a66b26"
      unitRef="number">1.50</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward
      contextRef="if1ccb61b2eca47959ec3f2b1c83d2516_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MTE1OA_5334ce00-58f5-42a3-b952-2a489cf8f410"
      unitRef="number">1</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQ1NA_3f2a7835-ea18-413b-aa38-b10ef20aa96a">P60D</chgg:ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzM5OQ_73c52258-43e3-46c9-81c5-23b4963f68b3">P3Y</chgg:ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue
      contextRef="i86b8ea162c34436688b9d0c26384fb42_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDQwOQ_1e00275c-97a9-42d4-b3fc-3ab570d65bae"
      unitRef="number">0.50</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold
      contextRef="i3e91538dab90434a8c28609c79636341_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDMyOA_edae8291-022e-4799-9455-0502a4cbc16e"
      unitRef="usdPerShare">123.81</chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold
      contextRef="i805c55cd19e7402b8cc3365e520eebac_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDMzNw_93ff8020-364b-41d1-b9a4-721d0ff095ab"
      unitRef="usdPerShare">148.58</chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold
      contextRef="i1d610928a8304be08320eefbc0bc522e_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MDM1MQ_eacf4a0b-a116-4917-a65c-3acc36af1dd0"
      unitRef="usdPerShare">173.34</chgg:ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels
      contextRef="i3e91538dab90434a8c28609c79636341_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0ODk0OA_2bc123d7-ccbf-4972-9163-b4fd86f3f7c8"
      unitRef="shares">244086</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels
      contextRef="i805c55cd19e7402b8cc3365e520eebac_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0ODkzOQ_962f2c44-97f5-4458-b6ce-17038a08826f"
      unitRef="shares">488173</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels
      contextRef="i1d610928a8304be08320eefbc0bc522e_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzQwOQ_202a81b6-2f62-4234-8589-3e105234e406"
      unitRef="shares">732260</chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzM5NA_f9bc7da3-56a7-473e-9288-65ec683f39ba">P4Y</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
      contextRef="ide9e54322d4f4a91a9002245f04ab235_D20240301-20240331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM0ODg5NA_71a569a2-4774-4342-b3cc-6fa292de8f9d"
      unitRef="number">0.50</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjY2Nw_523db5aa-4313-4836-b874-a79d046b2d54"
      unitRef="shares">732260</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjYxMA_dd7c0906-d442-4838-ac87-82953e5f0d5e"
      unitRef="usdPerShare">68.55</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardConversionRatio
      contextRef="if1ccb61b2eca47959ec3f2b1c83d2516_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQ2Mg_307c249a-0bc4-401d-a7cb-aca5d0350530"
      unitRef="number">1</chgg:ShareBasedArrangementByShareBasedPaymentAwardConversionRatio>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzM5Mw_36d25447-dbfd-4066-b89e-3d538864eed8">P4Y</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTYzOTA2NA_2f3db94a-160f-4d34-a175-d76c0130273c">P3Y</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTQ3Mg_1fd5d85f-b5da-4846-9b24-7528a84e55d9">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The following table summarizes the key assumptions used to determine the fair value of the awards:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:84.280%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:13.520%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Three Months Ended March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Expected term (years)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;3.00&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Expected volatility&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;49.04&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Dividend yield&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Risk-free interest rate&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;0.27&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;td colspan="3" style="display:none"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfMS01LTEtMS0zNDMw_2432838a-1cba-482e-b490-8d2a6ee49bfe">P3Y</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfMi01LTEtMS0zNDMw_5ede89a5-8d44-473c-a811-3160b0a25892"
      unitRef="number">0.4904</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfMy01LTEtMS0zNDMw_bb758f39-d48f-476c-b6e8-14351091ad30"
      unitRef="number">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
      contextRef="ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjNiMTJlYmZlZDMwYTRjZjE5NWE3YjgxNzJhYTdiMTA3L3RhYmxlcmFuZ2U6M2IxMmViZmVkMzBhNGNmMTk1YTdiODE3MmFhN2IxMDdfNC01LTEtMS0zNDMw_ee717397-e6cb-4d7e-b668-7f6ff2059fff"
      unitRef="number">0.0027</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
      contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjc0ODc3OTEwMzQ1OA_9d12a72f-6a96-4818-821e-ff1ed8f38548">P3Y</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
      contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjQyOQ_be004c2b-c692-479c-a7b4-284c21298eae"
      unitRef="shares">278644</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
      contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NjQyMQ_ae27d1ea-1a7f-446e-955f-3e7267682dc2"
      unitRef="usdPerShare">99.05</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue>
    <chgg:ShareBasedArrangementByShareBasedPaymentAwardConversionRatio
      contextRef="i4c95bfb512cd4083a532fb0833f49a47_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMjE5OTAyMzI4OTU3OA_096108c2-5e63-4260-aff7-b28bbc796edd"
      unitRef="number">1</chgg:ShareBasedArrangementByShareBasedPaymentAwardConversionRatio>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
      contextRef="i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfNDk0NzgwMjM1MjgwMw_9de7e26f-98ab-490c-a390-2fc1318bf3f4">P3Y</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
      contextRef="i201e1f4000664b508d73f5e86160e5bf_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDY1MQ_026781d3-614f-46d6-9a8f-86a8e293b94a">P4Y</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1>
    <us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE5Mg_9fa0385e-3971-4fb0-9f9c-f35b662012fb">&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;Activity for RSUs and PSUs is as follows:&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:5pt;margin-top:5pt"&gt;&lt;table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"&gt;&lt;tr&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:74.777%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.595%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:0.530%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;td style="width:1.0%"/&gt;&lt;td style="width:10.598%"/&gt;&lt;td style="width:0.1%"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;RSUs and PSUs&#160;Outstanding&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Shares Outstanding&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/&gt;&lt;td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"&gt;Weighted Average Grant&#160;Date Fair Value&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Balance at December 31, 2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;4,816,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;37.82&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Granted&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;1,885,015&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;87.14&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Released&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(1,426,075)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;29.29&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Canceled&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;(173,936)&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#ffffff;padding:0 1pt"/&gt;&lt;td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;38.79&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;Balance at March 31, 2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;5,101,004&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;td colspan="3" style="background-color:#cceeff;padding:0 1pt"/&gt;&lt;td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"&gt;58.39&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
      contextRef="i91929bef1c4e43a2abbf3d3a09e0d999_I20201231"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMi0xLTEtMS0w_1bd48d84-912e-4b0a-954e-80d8f3ddc298"
      unitRef="shares">4816000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
      contextRef="i91929bef1c4e43a2abbf3d3a09e0d999_I20201231"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMi0zLTEtMS0w_c0b0b666-64c2-446e-aaec-545252378b8a"
      unitRef="usdPerShare">37.82</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMy0xLTEtMS0w_5863ce68-5386-4365-9414-58786fd80deb"
      unitRef="shares">1885015</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfMy0zLTEtMS0w_8c7114a1-f193-461e-a10b-dd4b6174da07"
      unitRef="usdPerShare">87.14</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNC0xLTEtMS0w_4f91f395-c1f0-458c-b0ce-4b705cf64b00"
      unitRef="shares">1426075</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNC0zLTEtMS0w_29329a3a-cf32-454e-95c2-0ee9c39967c8"
      unitRef="usdPerShare">29.29</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNS0xLTEtMS0w_e00db126-ba28-4cf2-be3c-c2eaefa81104"
      unitRef="shares">173936</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNS0zLTEtMS0w_f8e5ebf8-0168-4a0c-9c64-4f78dcee5ff1"
      unitRef="usdPerShare">38.79</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
      contextRef="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNi0xLTEtMS0w_1e9ef37a-7073-4477-a1e8-ae7dc81fe71f"
      unitRef="shares">5101004</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
      contextRef="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331"
      decimals="2"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RhYmxlOjhmZjEyNGIwNTU2ZDRiNGI5MTFhNTJlODJkZWQ4NmUwL3RhYmxlcmFuZ2U6OGZmMTI0YjA1NTZkNGI0YjkxMWE1MmU4MmRlZDg2ZTBfNi0zLTEtMS0w_74d0ec0b-936e-4d1e-b408-a8f70e97f921"
      unitRef="usdPerShare">58.39</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>
    <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
      contextRef="i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA4MA_990616b9-d9cc-44bc-99f7-517983bfbcd7"
      unitRef="usd">206400000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions>
    <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
      contextRef="ia955adf1e7f3427e89bebd2e8cc95d81_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTE3Nw_cd4f6ac7-811b-46b0-9e56-8b44abece028">P2Y3M18D</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1>
    <us-gaap:RelatedPartyTransactionsDisclosureTextBlock
      contextRef="i2db08c128b564996a428d4c2874a56d1_D20210101-20210331"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA4Mw_0b5cd11f-ad51-4733-8ce4-490676f6ceb7">Related-Party TransactionsOur Chief Executive Officer is a member of the Board of Directors of Adobe Systems Incorporated (Adobe). During the three months ended March 31, 2021 and 2020, we purchased $0.6 million and $0.4 million, respectively, of services from Adobe. We had no revenues during the three months ended March 31, 2021 and $0.1 million of revenues during the three months ended March 31, 2020 from Adobe. We had an immaterial amount and $0.1 million of payables as of March&#160;31, 2021 and December&#160;31, 2020, respectively, to Adobe. We had no outstanding receivables as of March&#160;31, 2021 and December&#160;31, 2020 from Adobe.&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;The immediate family of&#160;one&#160;of our board members is a member of the Board of Directors of PayPal Holdings, Inc. (PayPal). During the&#160;three months ended March 31, 2021 and 2020, we incurred payment processing fees of&#160;$0.7 million&#160;and $0.5 million, respectively, to PayPal.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:27pt"&gt;&lt;span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"&gt;One of our board members is also a member of the Board of Directors of Zuora, Inc. (Zuora). During the three months ended March 31, 2021 and 2020, we purchased $0.4&#160;million and $0.2&#160;million of services from Zuora.&lt;/span&gt;&lt;/div&gt;</us-gaap:RelatedPartyTransactionsDisclosureTextBlock>
    <us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
      contextRef="i1f614ee084a1468686803c83c6301868_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTc1_6d543312-6f94-4cfd-878f-990bbf351134"
      unitRef="usd">600000</us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty>
    <us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
      contextRef="idb10cb96493c47de81f06e9bd4923178_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTgy_b9b3f5f7-cd10-4e5b-a095-d8258ba99ea6"
      unitRef="usd">400000</us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty>
    <us-gaap:RevenueFromRelatedParties
      contextRef="i1f614ee084a1468686803c83c6301868_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMjg4_f910bd32-89bd-454a-bda5-39db66ce6004"
      unitRef="usd">0</us-gaap:RevenueFromRelatedParties>
    <us-gaap:RevenueFromRelatedParties
      contextRef="idb10cb96493c47de81f06e9bd4923178_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMzE4_9d545c20-603f-4c8f-8ba9-b369ee57220f"
      unitRef="usd">100000</us-gaap:RevenueFromRelatedParties>
    <us-gaap:DueToOfficersOrStockholdersCurrent
      contextRef="ic935a646906045b6888f5a72bcc403e5_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNDE4_593ff0c6-52e2-42d4-b811-2066771baf91"
      unitRef="usd">100000</us-gaap:DueToOfficersOrStockholdersCurrent>
    <us-gaap:RelatedPartyTransactionDueFromToRelatedParty
      contextRef="ic935a646906045b6888f5a72bcc403e5_I20201231"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNDgx_068d1fe5-676a-42b7-a437-eeda183f3e6f"
      unitRef="usd">0</us-gaap:RelatedPartyTransactionDueFromToRelatedParty>
    <us-gaap:RelatedPartyTransactionDueFromToRelatedParty
      contextRef="i44c5b21731b04cbb934f4da7c11bc671_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNDgx_b7416c41-12ed-4f6d-82ce-aa7945dbb8f2"
      unitRef="usd">0</us-gaap:RelatedPartyTransactionDueFromToRelatedParty>
    <chgg:RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty
      contextRef="i2dfc98470ee44a22bb6fda10432c17d0_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMjE5OTAyMzI1ODIxNA_35291be7-ed80-48bd-8e8e-a879281ef86b"
      unitRef="board_member">1</chgg:RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty>
    <us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
      contextRef="i2dfc98470ee44a22bb6fda10432c17d0_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNzEz_4f9a5209-ce5c-4d4b-8901-86381f15cc09"
      unitRef="usd">700000</us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty>
    <us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
      contextRef="ieaf219e91397420b8ac83b4004a64436_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfNzIw_0afa0b7c-b476-4d6e-bc7f-4c62e454cdd4"
      unitRef="usd">500000</us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty>
    <chgg:RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty
      contextRef="i54b84e300cd7411394549e694c42c059_D20210101-20210331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA5OTUxMTYyOTAyOA_a3fad5f4-72df-4a50-9368-fa25823bf835"
      unitRef="board_member">1</chgg:RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty>
    <us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
      contextRef="i54b84e300cd7411394549e694c42c059_D20210101-20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA5OTUxMTYyOTA1NA_7bd00d52-f515-4905-b748-849eff3beef5"
      unitRef="usd">400000</us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty>
    <us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty
      contextRef="i50761de480ce48699fb0528ba8500b03_D20200101-20200331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83OS9mcmFnOjc3Yzk1YWE0YmY1MzQyMDM5NzM4MTEyMWU0OWJiNWFkL3RleHRyZWdpb246NzdjOTVhYTRiZjUzNDIwMzk3MzgxMTIxZTQ5YmI1YWRfMTA5OTUxMTYyOTgxMA_38bb007f-9b35-4907-8d14-37390a43cde4"
      unitRef="usd">200000</us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty>
    <us-gaap:DebtInstrumentRepurchasedFaceAmount
      contextRef="ib09ea1ce125240a687be462ce814dc7a_I20210331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl8xMDkvZnJhZzoxNDcyNjUwYmViNGU0MDgzYWJkMjA2YjNiZjQ4ZjZkMy90ZXh0cmVnaW9uOjE0NzI2NTBiZWI0ZTQwODNhYmQyMDZiM2JmNDhmNmQzXzEyNA_25ca3883-a1cc-45e4-9144-07ed22975910"
      unitRef="usd">100000000.0</us-gaap:DebtInstrumentRepurchasedFaceAmount>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651502590984">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cover Page - shares<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Apr. 30, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">10-Q<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentQuarterlyReport', window );">Document Quarterly Report</a></td>
<td class="text">true<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Mar. 31,  2021<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentTransitionReport', window );">Document Transition Report</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-36180<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">CHEGG, INC<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">20-3237489<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">3990 Freedom Circle<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Santa Clara<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CA<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">95054<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">408<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">855-5700<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common stock, $0.001 par value per share<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">CHGG<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCurrentReportingStatus', window );">Entity Current Reporting Status</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityInteractiveDataCurrent', window );">Entity Interactive Data Current</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Large Accelerated Filer<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntitySmallBusiness', window );">Entity Small Business</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityShellCompany', window );">Entity Shell Company</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">141,935,085<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001364954<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--12-31<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2021<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CurrentFiscalYearEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:gMonthDayItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalPeriodFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalPeriodFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fiscalPeriodItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalYearFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalYearFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:gYearItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentQuarterlyReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as an quarterly report.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-Q<br> -Number 240<br> -Section 308<br> -Subsection a<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentQuarterlyReport</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentTransitionReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as a transition report.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Forms 10-K, 10-Q, 20-F<br> -Number 240<br> -Section 13<br> -Subsection a-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentTransitionReport</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityInteractiveDataCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-T<br> -Number 232<br> -Section 405<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityInteractiveDataCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityShellCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityShellCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a Smaller Reporting Company (SRC).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntitySmallBusiness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421296456">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current assets</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 656,168<span></span>
</td>
<td class="nump">$ 479,853<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">1,215,944<span></span>
</td>
<td class="nump">665,567<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNetCurrent', window );">Accounts receivable, net of allowance of $169 and $153 at March&#160;31, 2021 and December&#160;31, 2020, respectively</a></td>
<td class="nump">11,633<span></span>
</td>
<td class="nump">12,913<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PrepaidExpenseCurrent', window );">Prepaid expenses</a></td>
<td class="nump">25,256<span></span>
</td>
<td class="nump">12,776<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsCurrent', window );">Other current assets</a></td>
<td class="nump">26,625<span></span>
</td>
<td class="nump">11,846<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">1,935,626<span></span>
</td>
<td class="nump">1,182,955<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">711,224<span></span>
</td>
<td class="nump">523,628<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_TextbookLibraryNet', window );">Textbook library, net</a></td>
<td class="nump">24,000<span></span>
</td>
<td class="nump">34,149<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNet', window );">Property and equipment, net</a></td>
<td class="nump">134,093<span></span>
</td>
<td class="nump">125,807<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">290,601<span></span>
</td>
<td class="nump">285,214<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IntangibleAssetsNetExcludingGoodwill', window );">Intangible assets, net</a></td>
<td class="nump">49,798<span></span>
</td>
<td class="nump">51,249<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets</a></td>
<td class="nump">22,617<span></span>
</td>
<td class="nump">24,226<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsNoncurrent', window );">Other assets</a></td>
<td class="nump">25,602<span></span>
</td>
<td class="nump">24,030<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">3,193,561<span></span>
</td>
<td class="nump">2,251,258<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">14,902<span></span>
</td>
<td class="nump">8,547<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Deferred revenue</a></td>
<td class="nump">48,608<span></span>
</td>
<td class="nump">32,620<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued liabilities</a></td>
<td class="nump">78,089<span></span>
</td>
<td class="nump">68,565<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SeniorNotesCurrent', window );">Current portion of convertible senior notes, net</a></td>
<td class="nump">109,494<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">251,093<span></span>
</td>
<td class="nump">109,732<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesNoncurrentAbstract', window );"><strong>Long-term liabilities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SeniorLongTermNotes', window );">Long-term portion of convertible senior notes, net</a></td>
<td class="nump">1,673,946<span></span>
</td>
<td class="nump">1,506,922<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Long-term operating lease liabilities</a></td>
<td class="nump">17,551<span></span>
</td>
<td class="nump">19,264<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesNoncurrent', window );">Other long-term liabilities</a></td>
<td class="nump">7,628<span></span>
</td>
<td class="nump">5,705<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesNoncurrent', window );">Total long-term liabilities</a></td>
<td class="nump">1,699,125<span></span>
</td>
<td class="nump">1,531,891<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">1,950,218<span></span>
</td>
<td class="nump">1,641,623<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingencies', window );">Commitments and contingencies</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>Stockholders' equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockValue', window );">Preferred stock, 0.001 par value&#160;&#8211; 10,000,000 shares authorized, no shares issued and outstanding</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, 0.001 par value 400,000,000 shares authorized; 141,317,066 and 129,343,524 shares issued and outstanding at March&#160;31, 2021 and December&#160;31, 2020, respectively</a></td>
<td class="nump">141<span></span>
</td>
<td class="nump">129<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="nump">1,645,352<span></span>
</td>
<td class="nump">1,030,577<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax', window );">Accumulated other comprehensive (loss) income</a></td>
<td class="num">(1,238)<span></span>
</td>
<td class="nump">1,530<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(400,912)<span></span>
</td>
<td class="num">(422,601)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total stockholders' equity</a></td>
<td class="nump">1,243,343<span></span>
</td>
<td class="nump">609,635<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and stockholders' equity</a></td>
<td class="nump">$ 3,193,561<span></span>
</td>
<td class="nump">$ 2,251,258<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_TextbookLibraryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of amounts paid for textbooks which met the criteria for capitalization, net of related accumulated depreciation, which is expected to be used beyond one year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_TextbookLibraryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121593590&amp;loc=d3e4428-111522<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6676-107765<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=121593590&amp;loc=d3e4531-111522<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsReceivableNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=d3e637-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14A<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669686-108580<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=d3e681-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapitalCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapitalCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=116870748&amp;loc=SL6758485-165988<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(12))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6801-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=116870748&amp;loc=SL6758485-165988<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3044-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingencies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.25)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),19)<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14326-108349<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingencies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121556615&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121556615&amp;loc=SL49130532-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(10)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120320667&amp;loc=SL49117168-202975<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=99380562&amp;loc=d3e13770-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Goodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IntangibleAssetsNetExcludingGoodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph ((a)(1),(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6388964&amp;loc=d3e16212-109274<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IntangibleAssetsNetExcludingGoodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=116870748&amp;loc=SL6758485-165988<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19-26)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 7: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=116870748&amp;loc=SL6758485-165988<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation due after one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(26))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559654&amp;loc=d3e5710-111685<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=116870748&amp;loc=SL6758485-165988<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesNoncurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.12)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121603541&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's right to use underlying asset under operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121603541&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncurrent assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PrepaidExpenseCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6787-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6676-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 340<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6387103&amp;loc=d3e6435-108320<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 340<br> -SubTopic 10<br> -Section 05<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=68074540&amp;loc=d3e5879-108316<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PrepaidExpenseCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SeniorLongTermNotes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SeniorLongTermNotes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SeniorNotesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SeniorNotesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(1)(g))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>R3.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420247864">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Statement of Financial Position [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent', window );">Allowance for doubtful accounts receivable, current</a></td>
<td class="nump">$ 169<span></span>
</td>
<td class="nump">$ 153<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockParOrStatedValuePerShare', window );">Preferred stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ 0.001<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesAuthorized', window );">Preferred stock, shares authorized (in shares)</a></td>
<td class="nump">10,000,000<span></span>
</td>
<td class="nump">10,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesIssued', window );">Preferred stock, shares issued (in shares)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding (in shares)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ 0.001<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorized', window );">Common stock, shares authorized (in shares)</a></td>
<td class="nump">400,000,000<span></span>
</td>
<td class="nump">400,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued (in shares)</a></td>
<td class="nump">141,317,066<span></span>
</td>
<td class="nump">129,343,524<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding (in shares)</a></td>
<td class="nump">141,317,066<span></span>
</td>
<td class="nump">129,343,524<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of allowance for credit loss on accounts receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=121611835&amp;loc=d3e5074-111524<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121599878&amp;loc=SL82895884-210446<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of common shares permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementOfFinancialPositionAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementOfFinancialPositionAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>R4.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422308456">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementAbstract', window );"><strong>Income Statement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">$ 198,378<span></span>
</td>
<td class="nump">$ 131,590<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of revenues</a></td>
<td class="nump">71,384<span></span>
</td>
<td class="nump">42,390<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="nump">126,994<span></span>
</td>
<td class="nump">89,200<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingExpensesAbstract', window );"><strong>Operating expenses:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">46,131<span></span>
</td>
<td class="nump">39,541<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingAndMarketingExpense', window );">Sales and marketing</a></td>
<td class="nump">26,214<span></span>
</td>
<td class="nump">20,238<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GeneralAndAdministrativeExpense', window );">General and administrative</a></td>
<td class="nump">37,870<span></span>
</td>
<td class="nump">26,145<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingExpenses', window );">Total operating expenses</a></td>
<td class="nump">110,215<span></span>
</td>
<td class="nump">85,924<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Income from operations</a></td>
<td class="nump">16,779<span></span>
</td>
<td class="nump">3,276<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpenseAbstract', window );"><strong>Interest expense, net and other (expense) income, net:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeExpenseNet', window );">Interest expense, net</a></td>
<td class="num">(1,929)<span></span>
</td>
<td class="num">(13,427)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingIncomeExpense', window );">Other (expense) income, net</a></td>
<td class="num">(77,208)<span></span>
</td>
<td class="nump">4,960<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total interest expense, net and other (expense) income, net</a></td>
<td class="num">(79,137)<span></span>
</td>
<td class="num">(8,467)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Loss before provision for income taxes</a></td>
<td class="num">(62,358)<span></span>
</td>
<td class="num">(5,191)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Provision for income taxes</a></td>
<td class="nump">2,821<span></span>
</td>
<td class="nump">522<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (65,179)<span></span>
</td>
<td class="num">$ (5,713)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDiluted', window );">Net loss per share, basic and diluted (in dollars per share)</a></td>
<td class="num">$ (0.49)<span></span>
</td>
<td class="num">$ (0.05)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted', window );">Weighted average shares used to compute net loss per share, basic and diluted</a></td>
<td class="nump">134,352<span></span>
</td>
<td class="nump">122,428<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostOfRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate cost of goods produced and sold and services rendered during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=d3e1337-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GeneralAndAdministrativeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GeneralAndAdministrativeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1,2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GrossProfit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(h)(1)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=116825942&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32672-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22663-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120385591&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestIncomeExpenseNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net amount of operating interest income (expense).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.10)<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestIncomeExpenseNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22595-107794<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22663-107794<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22583-107794<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 20: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=SL5780133-109256<br><br>Reference 21: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 22: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 23: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NonoperatingIncomeExpenseAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpenseAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpensesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (expense) related to nonoperating activities, classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ResearchAndDevelopmentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 985<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6501960&amp;loc=d3e128462-111756<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 730<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SellingAndMarketingExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total amount of expenses directly related to the marketing or selling of products or services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SellingAndMarketingExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>R5.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421587112">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract', window );"><strong>Statement of Comprehensive Income [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (65,179)<span></span>
</td>
<td class="num">$ (5,713)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract', window );"><strong>Other comprehensive loss</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax', window );">Change in net unrealized loss on available for sale investments, net of tax</a></td>
<td class="num">(1,894)<span></span>
</td>
<td class="num">(3,267)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Change in foreign currency translation adjustments, net of tax</a></td>
<td class="num">(874)<span></span>
</td>
<td class="num">(999)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax', window );">Other comprehensive loss</a></td>
<td class="num">(2,768)<span></span>
</td>
<td class="num">(4,266)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Total comprehensive loss</a></td>
<td class="num">$ (67,947)<span></span>
</td>
<td class="num">$ (9,979)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=d3e557-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(26))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22595-107794<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22663-107794<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22583-107794<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 20: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=SL5780133-109256<br><br>Reference 21: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 22: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 23: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669646-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=d3e637-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of other comprehensive income (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 17<br> -URI http://asc.fasb.org/extlink&amp;oid=118261656&amp;loc=d3e32136-110900<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 55<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=121640130&amp;loc=d3e1436-108581<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=118261656&amp;loc=d3e32211-110900<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6450520&amp;loc=d3e32583-110901<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>R6.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422336536">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Total</div></th>
<th class="th"><div>Cumulative Effect, Period of Adoption, Adjustment</div></th>
<th class="th"><div>Common Stock</div></th>
<th class="th"><div>Additional Paid-In Capital</div></th>
<th class="th">
<div>Additional Paid-In Capital </div>
<div>Cumulative Effect, Period of Adoption, Adjustment</div>
</th>
<th class="th"><div>Accumulated Other Comprehensive (Loss) Income</div></th>
<th class="th"><div>Accumulated Deficit</div></th>
<th class="th">
<div>Accumulated Deficit </div>
<div>Cumulative Effect, Period of Adoption, Adjustment</div>
</th>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2019</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">121,584,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Dec. 31, 2019</a></td>
<td class="nump">$ 498,829<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
<td class="nump">$ 122<span></span>
</td>
<td class="nump">$ 916,095<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (1,096)<span></span>
</td>
<td class="num">$ (416,292)<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingStandardsUpdateExtensibleList', window );">Accounting standards update</a></td>
<td class="text">us-gaap:AccountingStandardsUpdate201613Member<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised', window );">Issuance of common stock upon exercise of stock options and ESPP (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">360,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised', window );">Issuance of common stock upon exercise of stock options and ESPP</a></td>
<td class="nump">$ 2,665<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">2,665<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures', window );">Net share settlement of equity awards (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,599,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures', window );">Net share settlement of equity awards</a></td>
<td class="num">(46,834)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2<span></span>
</td>
<td class="num">(46,836)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Share-based compensation expense</a></td>
<td class="nump">18,334<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">18,334<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent', window );">Other comprehensive loss</a></td>
<td class="num">(4,266)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(4,266)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">(5,713)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(5,713)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2020</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">123,543,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Mar. 31, 2020</a></td>
<td class="nump">$ 462,927<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 124<span></span>
</td>
<td class="nump">890,258<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(5,362)<span></span>
</td>
<td class="num">(422,093)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2020</a></td>
<td class="nump">129,343,524<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">129,344,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Dec. 31, 2020</a></td>
<td class="nump">$ 609,635<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 129<span></span>
</td>
<td class="nump">1,030,577<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,530<span></span>
</td>
<td class="num">(422,601)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance (Accounting Standards Update 2020-06) at Dec. 31, 2020</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (378,138)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (465,006)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (86,868)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Issuance of common stock in connection with equity offering, net of offering costs</a></td>
<td class="nump">1,091,466<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 11<span></span>
</td>
<td class="nump">1,091,455<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Issuance of common stock in connection with equity offering, net of offering costs (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">10,975,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt', window );">Equity component of convertible senior notes, net of issuance costs</a></td>
<td class="num">(11,305)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(11,305)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities', window );">Issuance of common stock upon conversion of 2023 convertible senior notes (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">126,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities', window );">Issuance of common stock upon conversions of 2023 notes</a></td>
<td class="nump">11,237<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">11,237<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall', window );">Net proceeds from capped call related to conversions and extinguishments of 2023 notes and 2025 notes</a></td>
<td class="nump">23,577<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">23,577<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised', window );">Issuance of common stock upon exercise of stock options and ESPP (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">44,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised', window );">Issuance of common stock upon exercise of stock options and ESPP</a></td>
<td class="nump">346<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">346<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures', window );">Net share settlement of equity awards (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">828,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures', window );">Net share settlement of equity awards</a></td>
<td class="num">(59,175)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1<span></span>
</td>
<td class="num">(59,176)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Share-based compensation expense</a></td>
<td class="nump">23,647<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">23,647<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent', window );">Other comprehensive loss</a></td>
<td class="num">(2,768)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(2,768)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (65,179)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(65,179)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2021</a></td>
<td class="nump">141,317,066<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">141,317,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Mar. 31, 2021</a></td>
<td class="nump">$ 1,243,343<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 141<span></span>
</td>
<td class="nump">$ 1,645,352<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (1,238)<span></span>
</td>
<td class="num">$ (400,912)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Adjustments To Additional Paid In Capital, Proceeds From Capped Call</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Stock Issued During Period, Shares, Employee Stock Purchase Plan and Stock Options Exercised</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Stock Issued During Period, Value, Employee Stock Purchase Plan and Stock Options Exercised</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountingStandardsUpdateExtensibleList">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicates amendment to accounting standards.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (f)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (f)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 10<br> -Section 65<br> -Paragraph 4<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121646688&amp;loc=SL121648383-210437<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (f)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 10<br> -Section 65<br> -Paragraph 4<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=121646688&amp;loc=SL121648383-210437<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 10<br> -Section 65<br> -Paragraph 4<br> -Subparagraph (e)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=121646688&amp;loc=SL121648383-210437<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(iv)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 20: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 21: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 22: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 23: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 24: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 25: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 10<br> -Section 65<br> -Paragraph 4<br> -Subparagraph (e)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=121646688&amp;loc=SL121648383-210437<br><br>Reference 26: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 10<br> -Section 65<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121646688&amp;loc=SL121648383-210437<br><br>Reference 27: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 28: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (f)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 29: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 10<br> -Section 65<br> -Paragraph 4<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121646688&amp;loc=SL121648383-210437<br><br>Reference 30: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=121370832&amp;loc=SL117420844-207641<br><br>Reference 31: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 65<br> -Paragraph 8<br> -Subparagraph (d)(2)<br><br>Reference 32: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 65<br> -Paragraph 8<br> -Subparagraph (d)(3)<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountingStandardsUpdateExtensibleList</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>srt-types:extensibleListItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 25<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=51819886&amp;loc=SL6014347-161799<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=120383193&amp;loc=d3e11149-113907<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=120383193&amp;loc=d3e11178-113907<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121326096&amp;loc=d3e4534-113899<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInStockholdersEquityRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22595-107794<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22663-107794<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22583-107794<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 20: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=SL5780133-109256<br><br>Reference 21: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 22: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 23: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of other comprehensive income (loss) attributable to parent entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=108774443&amp;loc=SL4569643-111683<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=108774443&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued during the period as a result of the conversion of convertible securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-30)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21475-112644<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The gross value of stock issued during the period upon the conversion of convertible securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-31)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=chgg_AccountingStandardsUpdate202006Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=chgg_AccountingStandardsUpdate202006Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>18
<FILENAME>R7.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421917960">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Cash flows from operating activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (65,179)<span></span>
</td>
<td class="num">$ (5,713)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net loss to net cash provided by operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DepreciationTextbookLibrary', window );">Print textbook depreciation expense</a></td>
<td class="nump">3,760<span></span>
</td>
<td class="nump">3,527<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherDepreciationAndAmortization', window );">Other depreciation and amortization expense</a></td>
<td class="nump">14,846<span></span>
</td>
<td class="nump">9,243<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensation', window );">Share-based compensation expense</a></td>
<td class="nump">23,100<span></span>
</td>
<td class="nump">18,334<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfFinancingCostsAndDiscounts', window );">Amortization of debt discount and issuance costs</a></td>
<td class="nump">1,626<span></span>
</td>
<td class="nump">12,946<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early extinguishment of debt</a></td>
<td class="nump">78,152<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DerivativeGainLossOnDerivativeNet', window );">Loss on change in fair value of derivative instruments, net</a></td>
<td class="nump">7,148<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnSaleOfPropertyPlantEquipment', window );">Loss from write-off of property and equipment</a></td>
<td class="nump">757<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal', window );">Gain on sale of strategic equity investment</a></td>
<td class="num">(5,338)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_TextbookLibraryGainLossNet', window );">Loss (gain) on textbook library, net</a></td>
<td class="nump">4,028<span></span>
</td>
<td class="num">(1,175)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseCost', window );">Operating lease expense, net of accretion</a></td>
<td class="nump">1,589<span></span>
</td>
<td class="nump">1,053<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNoncashIncomeExpense', window );">Other non-cash items</a></td>
<td class="nump">87<span></span>
</td>
<td class="num">(312)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Change in assets and liabilities, net of effect of acquisition of business:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsReceivable', window );">Accounts receivable</a></td>
<td class="nump">2,240<span></span>
</td>
<td class="nump">4,929<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPrepaidExpensesOther', window );">Prepaid expenses and other current assets</a></td>
<td class="num">(25,075)<span></span>
</td>
<td class="num">(9,707)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherOperatingAssets', window );">Other assets</a></td>
<td class="nump">1,058<span></span>
</td>
<td class="num">(1,425)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayable', window );">Accounts payable</a></td>
<td class="nump">6,597<span></span>
</td>
<td class="num">(436)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInDeferredRevenue', window );">Deferred revenue</a></td>
<td class="nump">15,988<span></span>
</td>
<td class="nump">16,973<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccruedLiabilities', window );">Accrued liabilities</a></td>
<td class="nump">9,386<span></span>
</td>
<td class="nump">15,972<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities', window );">Other liabilities</a></td>
<td class="num">(1,197)<span></span>
</td>
<td class="num">(1,242)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Net cash provided by operating activities</a></td>
<td class="nump">73,573<span></span>
</td>
<td class="nump">62,967<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>Cash flows from investing activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Purchases of property and equipment</a></td>
<td class="num">(18,984)<span></span>
</td>
<td class="num">(19,965)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_PaymentToPurchasesTextbooks', window );">Purchases of textbooks</a></td>
<td class="num">(4,527)<span></span>
</td>
<td class="num">(36,830)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ProceedsFromDispositionOfTextbooks', window );">Proceeds from disposition of textbooks</a></td>
<td class="nump">4,038<span></span>
</td>
<td class="nump">2,170<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireMarketableSecurities', window );">Purchases of investments</a></td>
<td class="num">(925,748)<span></span>
</td>
<td class="num">(112,421)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities', window );">Maturities of investments</a></td>
<td class="nump">181,315<span></span>
</td>
<td class="nump">121,784<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireEquityMethodInvestments', window );">Purchase of strategic equity investment</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,000)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSaleOfEquityMethodInvestments', window );">Proceeds from sale of strategic equity investment</a></td>
<td class="nump">6,845<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired', window );">Acquisition of business, net of cash acquired</a></td>
<td class="num">(7,891)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Net cash used in investing activities</a></td>
<td class="num">(764,952)<span></span>
</td>
<td class="num">(47,262)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Cash flows from financing activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan', window );">Proceeds from common stock issued under stock plans, net</a></td>
<td class="nump">347<span></span>
</td>
<td class="nump">2,667<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Payment of taxes related to the net share settlement of equity awards</a></td>
<td class="num">(59,176)<span></span>
</td>
<td class="num">(46,836)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfCommonStock', window );">Proceeds from equity offering, net of offering costs</a></td>
<td class="nump">1,091,466<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayment of convertible senior notes</a></td>
<td class="num">(189,849)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromConvertibleDebt', window );">Proceeds from exercise of convertible senior notes capped call</a></td>
<td class="nump">24,812<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Net cash provided by (used in) financing activities</a></td>
<td class="nump">867,600<span></span>
</td>
<td class="num">(44,169)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">Net increase (decrease) in cash, cash equivalents and restricted cash</a></td>
<td class="nump">176,221<span></span>
</td>
<td class="num">(28,464)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Cash, cash equivalents and restricted cash, beginning of period</a></td>
<td class="nump">481,715<span></span>
</td>
<td class="nump">389,432<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Cash, cash equivalents and restricted cash, end of period</a></td>
<td class="nump">657,936<span></span>
</td>
<td class="nump">360,968<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental cash flow data:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestPaidNet', window );">Interest</a></td>
<td class="nump">502<span></span>
</td>
<td class="nump">500<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxesPaidNet', window );">Income taxes, net of refunds</a></td>
<td class="nump">3,063<span></span>
</td>
<td class="nump">756<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashFlowOperatingActivitiesLesseeAbstract', window );"><strong>Cash paid for amounts included in the measurement of lease liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasePayments', window );">Operating cash flows from operating leases</a></td>
<td class="nump">1,998<span></span>
</td>
<td class="nump">1,572<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract', window );"><strong>Non-cash investing and financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1', window );">Accrued purchases of long-lived assets</a></td>
<td class="nump">904<span></span>
</td>
<td class="nump">8,020<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_StockIssuedRepaymentForConvertibleSeniorNotes', window );">Issuance of common stock related to repayment of convertible senior notes</a></td>
<td class="nump">11,237<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract', window );"><strong>Reconciliation of cash, cash equivalents and restricted cash:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Total cash, cash equivalents and restricted cash</a></td>
<td class="nump">$ 657,936<span></span>
</td>
<td class="nump">$ 360,968<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DepreciationTextbookLibrary">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Depreciation, Textbook Library</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DepreciationTextbookLibrary</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_PaymentToPurchasesTextbooks">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Payment to purchases textbooks</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_PaymentToPurchasesTextbooks</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ProceedsFromDispositionOfTextbooks">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Proceeds From Disposition Of Textbooks</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ProceedsFromDispositionOfTextbooks</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Proceeds From Issuance Of Employee Stock Purchase Plan</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_StockIssuedRepaymentForConvertibleSeniorNotes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Stock Issued, Repayment For Convertible Senior Notes</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_StockIssuedRepaymentForConvertibleSeniorNotes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_TextbookLibraryGainLossNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gain and write-down on textbook library</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_TextbookLibraryGainLossNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfFinancingCostsAndDiscounts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AmortizationOfFinancingCostsAndDiscounts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3521-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=98513438&amp;loc=d3e33268-110906<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashFlowOperatingActivitiesLesseeAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashFlowOperatingActivitiesLesseeAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DerivativeGainLossOnDerivativeNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4A<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121590274&amp;loc=SL5618551-113959<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DerivativeGainLossOnDerivativeNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of an equity method investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(b)(7)(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(b)(9)(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainLossOnSaleOfPropertyPlantEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnSaleOfPropertyPlantEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=117329964&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=117329964&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4297-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxesPaidNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInDeferredRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInDeferredRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherOperatingAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in operating assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOtherOperatingAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in operating liabilities classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOtherOperatingLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidExpensesOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) of consideration paid in advance for other costs that provide economic benefits in future periods.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPrepaidExpensesOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4297-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3367-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestPaidNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3536-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3521-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22595-107794<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22663-107794<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22583-107794<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 20: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=SL5780133-109256<br><br>Reference 21: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 22: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 23: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4332-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4313-108586<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4304-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=121568110&amp;loc=SL77918982-209971<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121609121&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeasePayments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121603541&amp;loc=SL77918643-209977<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121609121&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasePayments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherDepreciationAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherDepreciationAndAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNoncashIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNoncashIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireMarketableSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow for purchase of marketable security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=121553693&amp;loc=d3e26853-111562<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireMarketableSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the additional capital contribution to the entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3151-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3179-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=121553693&amp;loc=d3e26853-111562<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSaleOfEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3179-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSaleOfEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncash expense for share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SupplementalCashFlowInformationAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SupplementalCashFlowInformationAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>R8.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419725784">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Background and Basis of Presentation<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock', window );">Background and Basis of Presentation</a></td>
<td class="text">Background and Basis of Presentation<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Company and Background</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Chegg, Inc. (Chegg, the Company, we, us, or our), headquartered in Santa Clara, California, was incorporated as a Delaware corporation in July&#160;2005.&#160;Chegg is A Smarter Way to Student</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">&#174;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. We strive to improve educational outcomes by putting the student first. We support students on their journey from high school to college and into their career with tools designed to help them learn their course materials, succeed in their classes, save money on required materials, and learn the most in-demand skills. Our services are available online, anytime and anywhere. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Basis of Presentation</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying condensed consolidated balance sheet as of&#160;March&#160;31, 2021, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive loss, the condensed consolidated statements of stockholder's equity, and the condensed consolidated statements of cash flows for the three months ended March 31, 2021 and 2020, and the related footnote disclosures are unaudited. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of&#160;March&#160;31, 2021, our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the three months ended March 31, 2021 and 2020. Our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the&#160;three months ended&#160;March&#160;31, 2021&#160;are not necessarily indicative of the results to be expected for the full year.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We operate in a single segment. Our fiscal year ends on December&#160;31 and in this report we refer to the year ended&#160;December&#160;31, 2020&#160;as&#160;2020.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended&#160;December&#160;31, 2020&#160;(the Annual Report on Form 10-K) filed with the U.S. Securities and Exchange Commission (SEC).</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Except for our policies on convertible senior notes, net, share-based compensation expense, and net loss per share, there have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K. Our policies on convertible senior notes, net and net loss per share were updated as a result of our adoption of Accounting Standards Update (ASU) 2020-06, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> on January 1, 2021 under the modified retrospective method. For further information on ASU 2020-06, see the section below titled &#8220;Recent Accounting Pronouncements&#8221; of this Note 1, &#8220;Background and Basis of Presentation.&#8221;</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Convertible Senior Notes, net</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $700 million in aggregate principal amount of&#160;0.125%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total gross proceeds of $800 million. In April 2018, we issued&#160;$345 million in aggregate principal amount of&#160;0.25%&#160;convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the &#8220;notes.&#8221; The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our condensed consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our condensed consolidated balance sheets. In accounting for </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our condensed consolidated statements of operations.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Share-based Compensation Expense</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial performance targets is measured based on the closing fair market value of the Company&#8217;s common stock, PSUs with a market-based condition is estimated using a Monte Carlo simulation model, and the ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense, subject to continuing service over the requisite service period, which is generally the vesting period, on a straight-line basis for RSUs and the ESPP and on a graded basis for PSUs. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Net Loss Per Share</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. Diluted net loss per share assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later).</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management&#8217;s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations. Except for estimates related to the grant-date fair value of PSUs with a market-based condition, there have been no material changes in our use of estimates during the&#160;three months ended March 31, 2021&#160;as compared to the use of estimates disclosed in Part II, Item 8 &#8220;Consolidated Financial Statements and Supplementary Data&#8221; contained in our Annual Report on Form 10-K for the year ended December&#160;31, 2020.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Reclassification of Prior Period Presentation</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In order to conform with current period presentation, $6.6&#160;million of current operating lease liabilities have been reclassified to accrued liabilities on our condensed consolidated balance sheet as of December&#160;31, 2020. This change in presentation does not affect previously reported results.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Condensed Consolidated Statements of Operations Details</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other (expense) income, net consists of the following (in thousands):</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on early extinguishment of debt</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(78,152)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on change in fair value of derivative instruments, net</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(7,148)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gain on sale of strategic equity investment</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,338&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest income</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,049&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,856&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">705&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total other (expense) income, net</span></div></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(77,208)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,960&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> For further information, see Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes.&#8221;</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> For further information, see Note 4,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Cash and Cash Equivalents, and Investments.&#8221;</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Recent Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Recently Issued Accounting Pronouncements Not Yet Adopted</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There were no accounting pronouncements issued during the three months ended March 31, 2021 that would have an impact on our financial statements.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Recently Adopted Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Debt - Debt with Conversion and Other Options</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $378.1&#160;million and a decrease to additional paid-in capital of $465.0 million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $86.9 million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes&#8221; for more information.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the business description and basis of presentation concepts.  Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity.  Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -URI http://asc.fasb.org/topic&amp;trid=2122369<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -URI http://asc.fasb.org/topic&amp;trid=2122149<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -URI http://asc.fasb.org/topic&amp;trid=2134479<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>20
<FILENAME>R9.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419602920">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenues<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue from Contract with Customer [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerTextBlock', window );">Revenues</a></td>
<td class="text">Revenues<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Revenue Recognition</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The majority of our revenues are recognized over time as services are performed, with certain revenues being recognized at a point in time.</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:53.870%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:6.655%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chegg Services</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">162,351&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">100,359&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">61,992&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">62&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Required Materials</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36,027&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">31,231&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,796&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total net revenues</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">198,378&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,590&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">66,788&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">51&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:5pt;text-align:center"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021 and 2020, we recognized $29.5 million and $17.5&#160;million, respectively, of revenues that were included in our deferred revenue balance at the beginning of each reporting period. During the three months ended March 31, 2021 and 2020, we recognized $10.7 million and $12.3 million, respectively, of operating lease income from print textbook rentals that we own.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Contract Balances</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table presents our accounts receivable, net, deferred revenue, and contract assets balances (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.561%"><tr><td style="width:1.0%"/><td style="width:53.672%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.647%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.534%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.647%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="width:0.1%"/><td style="width:0.534%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.647%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.534%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:6.685%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts receivable, net</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,633&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">12,913&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,280)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(10)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deferred revenue</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">48,608&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">32,620&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15,988&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">49&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Contract assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">18,043&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13,243&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,800&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, our accounts receivable, net balance decreased by $1.3 million, or 10%, primarily due to timing of billings and seasonality of our business. During the three months ended March 31, 2021, our deferred revenue balance increased by $16.0 million, or 49%, primarily due to increased bookings driven by higher Chegg Services revenue. During the three months ended March 31, 2021, our contract assets balance increased by $4.8 million, or 36%, primarily due to the income sharing payment arrangements we offer to students for our Thinkful service.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -URI http://asc.fasb.org/topic&amp;trid=49130388<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130551-203045<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 13<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130556-203045<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130554-203045<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130550-203045<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130554-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130554-203045<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130554-203045<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130558-203045<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130554-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>21
<FILENAME>R10.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419771816">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Net Loss Per Share<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareTextBlock', window );">Net Loss Per Share</a></td>
<td class="text">Net Loss Per Share<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. ASU 2020-06 requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. Under the if-converted method, shares related to our convertible senior notes, to the extent dilutive, are assumed to be converted into common stock at the beginning of the period.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021 and 2020, basic and diluted net loss per share was the same, as the inclusion of all potential common shares outstanding would have been anti-dilutive. </span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.484%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.823%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Numerator:</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(65,179)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(5,713)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Denominator:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Weighted average shares used to compute net loss per share, basic and diluted</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">134,352&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">122,428&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:15pt"><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss per share, basic and diluted</span></div></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(0.49)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(0.05)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Options to purchase common stock</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">556&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,050&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">PSUs and RSUs</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,982&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,316&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Shares related to convertible senior notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">28,818&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,968&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Employee stock purchase plan </span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">25&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">10&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total common stock equivalents</span></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">32,381&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,344&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for earnings per share.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109243012&amp;loc=SL65017193-207537<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -URI http://asc.fasb.org/topic&amp;trid=2144383<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3630-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>22
<FILENAME>R11.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419551144">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cash and Cash Equivalents, and Investments<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAbstract', window );"><strong>Cash and Cash Equivalents [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock', window );">Cash and Cash Equivalents, and Investment</a></td>
<td class="text">Cash and Cash Equivalents, and Investments<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following tables show our cash and cash equivalents, and investments&#8217; adjusted cost, unrealized gain, unrealized loss, and fair value as of March&#160;31, 2021 and December&#160;31, 2020 (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.923%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.602%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Gain</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Loss</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24,399&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24,399&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,277&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,276&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash and cash equivalents</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">656,169&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">656,168&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,318&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">78&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(32)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,364&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">609,912&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">938&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(270)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">610,580&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total short-term investments</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,215,230&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,016&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(302)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,215,944&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">673,029&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">118&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(921)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">672,226&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,996&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,998&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term investments</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">712,025&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">122&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(923)</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">711,224&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.923%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.602%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Gain</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Loss</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15,054&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15,054&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash and cash equivalents</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">479,853&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">479,853&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,152&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(6)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,170&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">459,967&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,478&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(48)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">461,397&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total short-term investments</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">664,119&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,502&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(54)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">665,567&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,275&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(283)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,597&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,995&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,031&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term investments</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">523,270&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">641&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(283)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">523,628&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of&#160;March&#160;31, 2021 (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"/><td style="width:74.706%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.630%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.533%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.631%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Due in 1 year or less</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,314,507&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,315,220&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Due in 1-2 years</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">712,025&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">711,224&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Investments not due at a single maturity date</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,559,025&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,558,937&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Investments not due at a single maturity date in the preceding table consisted of money market funds.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of&#160;March&#160;31, 2021, we determined that the declines in the market value of our investment portfolio were not driven by credit related factors. When evaluating whether an investment's unrealized losses are related to credit factors, we review factors such as the extent to which fair value is below its cost basis, any changes to the credit rating of the security, adverse conditions specifically related to the security, changes in market interest rates and our intent to sell, or whether it is more likely than not we will be required to sell, before recovery of cost basis. We invest in highly rated securities with a minimum credit rating of A- and a weighted average maturity of less than twelve months. In addition, our investment policy limits the amount of our credit exposure to any one issuer or industry sector. The policy requires investments to be investment grade, with the primary objective of preserving capital and maintaining liquidity. Fair values were determined for each individual security in the investment portfolio. During the&#160;three months ended March 31, 2021 and 2020, we did not recognize any losses on our investments due to credit related factors.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Strategic Investments</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2020, we completed an investment of $2.0 million in TAPD, Inc., also known as Frank, a U.S.-based service that helps students access financial aid. Additionally, we previously invested&#160;$3.0 million&#160;in a foreign entity to explore expanding our reach internationally. During the three months ended March 31, 2021, we sold our investment in a foreign entity for total consideration of $8.3&#160;million, resulting in a $5.3 million gain included within other (expense) income, net on our condensed consolidated statements of operations. We received a cash payment, net of taxes withheld, of $6.8&#160;million included within cash flows from investing activities on our condensed consolidated statements of cash flows. We did not record any impairment charges on our strategic investments during the three months ended March 31, 2021 and 2020, as there were no significant identified events or changes in circumstances that would be considered an indicator for impairment. We considered general market conditions as a result of the COVID-19 pandemic in our impairment analysis. There were no observable price changes in orderly transactions for the identical or similar investments of the same issuers during the three months ended March 31, 2021 and 2020.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for cash, cash equivalents, investments in debt and equity instruments (including cost and equity investees and related income statement amounts), equity and cost method investments, investments in joint ventures and any other investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>23
<FILENAME>R12.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651418265608">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Fair Value Measurement<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueDisclosuresAbstract', window );"><strong>Fair Value Disclosures [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueDisclosuresTextBlock', window );">Fair Value Measurement</a></td>
<td class="text">Fair Value Measurement<div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have established a fair value hierarchy used to determine the fair value of our financial instruments as follows:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 1&#8212;Inputs are unadjusted quoted prices in active markets for identical assets or liabilities.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 2&#8212;Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the assets or liabilities, either directly or indirectly through market corroboration, for substantially the full term of the financial instruments.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Level 3&#8212;Inputs are unobservable inputs based on our own assumptions used to measure assets and liabilities at fair value; the inputs require significant management judgment or estimation.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">A financial instrument&#8217;s classification within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments measured and recorded at fair value on a recurring basis as of March&#160;31, 2021 and December&#160;31, 2020 are classified based on the valuation technique level in the tables below (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:62.350%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.600%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 1</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 2</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Assets:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash equivalents:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,276&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,276&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,364&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,364&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">610,580&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">610,580&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">672,226&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">672,226&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,998&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,998&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets measured and recorded at fair value</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,558,937&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,026,444&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:62.350%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.600%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 1</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 2</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Assets:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash equivalents:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,170&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,170&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">461,397&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">461,397&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,597&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,597&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,031&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,031&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets measured and recorded at fair value</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,653,994&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,189,195&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We value our investments based on quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. Other than our money market funds, we classify our fixed income available-for-sale investments as having Level 2 inputs. The valuation techniques used to measure the fair value of our investments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models such as discounted cash flow techniques. We do not hold any investments valued with a Level 3 input.</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">&#160;</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Financial Instruments Not Recorded at Fair Value on a Recurring Basis</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We report our financial instruments at fair value with the exception of the notes. The estimated fair value of the notes was determined based on the trading price of the notes as of the last day of trading for the period. We consider the fair value of the notes to be a Level 2 measurement due to the limited trading activity. For further information on the notes see Note 7, &#8220;Convertible Senior Notes.&#8221;</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The carrying amounts and estimated fair values of the notes as of March&#160;31, 2021 and December&#160;31, 2020 are as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"><tr><td style="width:1.0%"/><td style="width:49.851%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.613%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.613%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.613%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.614%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Carrying Amount</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Estimated Fair Value</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Carrying Amount</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Estimated Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2026 notes</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">985,706&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,054,020&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">761,930&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,129,370&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2025 notes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">688,240&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,202,129&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">640,614&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,456,800&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2023 notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">109,494&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">377,186&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104,378&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">376,949&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Convertible senior notes, net</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,783,440&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,633,335&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,506,922&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,963,119&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes&#8221; for more information.</span></div>The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of March&#160;31, 2021 was net of unamortized issuance costs of&#160;$14.3 million, $11.8 million and $1.4 million, respectively. The carrying amount of the 2026 notes, 2025 notes and 2023 notes as of December&#160;31, 2020 was net of unamortized debt discount of&#160;$226.7 million, $149.1 million and $10.0 million, respectively, and unamortized issuance costs of&#160;$11.3 million, $10.2 million and $1.2 million, respectively.<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueDisclosuresAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueDisclosuresAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueDisclosuresTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueDisclosuresTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>24
<FILENAME>R13.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651418136680">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Acquisitions<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessCombinationsAbstract', window );"><strong>Business Combinations [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessCombinationDisclosureTextBlock', window );">Acquisitions</a></td>
<td class="text">AcquisitionOn February 22, 2021, we completed an acquisition, accounted for as a business combination, of 100% of the outstanding shares of a company for a technology that will strengthen our content creation abilities for a purchase consideration of $8.0&#160;million in cash. Our preliminary total allocation of purchase consideration included acquired assets of $0.4&#160;million, acquired developed technology intangible asset of $3.3&#160;million and goodwill of $5.8&#160;million less assumed liabilities of $1.5&#160;million. This acquisition did not have a material impact on our condensed consolidated financial statements and is not expected to have a material impact in future periods.<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessCombinationDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -URI http://asc.fasb.org/topic&amp;trid=2303972<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessCombinationDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessCombinationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessCombinationsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>25
<FILENAME>R14.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419868408">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Senior Notes<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureTextBlock', window );">Convertible Senior Notes</a></td>
<td class="text">Convertible Senior Notes<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). The aggregate principal amount of the 2026 notes includes $100&#160;million from the initial purchasers fully exercising their option to purchase additional notes. In March 2019, we issued $700 million in aggregate principal amount of 0.125%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total principal amount of $800 million. In April 2018, we issued&#160;$345 million in aggregate principal amount of&#160;0.25%&#160;convertible senior notes due in 2023 (2023 notes and together with the 2026 notes and the 2025 notes, the notes). The aggregate principal amount of the 2023 notes includes $45 million&#160;from the </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">initial purchasers fully exercising their option to purchase additional notes. The notes were issued in private placements to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933, as amended. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The total net proceeds from the notes are as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:62.350%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.600%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Principal amount</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,000,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">800,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">345,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less initial purchasers&#8217; discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(15,000)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(18,998)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(8,625)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less other issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(904)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(822)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(757)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net proceeds</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">984,096&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">780,180&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">335,618&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, in connection with our securities repurchase program, we extinguished $100.0&#160;million aggregate principal amount of the 2025 notes in privately-negotiated transactions for aggregate consideration of $184.9&#160;million, which was paid in cash. Upon execution, we concluded that the 2025 notes embedded conversion features no longer met the derivative scope exception and, as a result, initially recorded a derivative liability of $176.5&#160;million, related to the fair value of extinguished 2025 notes. We settled the derivative liability for aggregate consideration of $184.9&#160;million resulting in a $8.4&#160;million loss on change in fair value. The carrying amount of the 2025 notes subject to the extinguishment was $98.3&#160;million resulting in a $78.2&#160;million loss on early extinguishment of debt.  Additionally, during the three months ended March 31, 2021, we entered into 2025 notes capped call privately-negotiated transactions which terminated capped call transactions underlying 1,939,560 shares of our common stock and received aggregate cash proceeds of $23.9&#160;million. Upon execution, we concluded that the capped call transactions no longer met the derivative scope exception and, as a result recorded a derivative liability of $22.6&#160;million related to the fair value of terminated 2025 notes capped call transactions. We settled the capped call transactions for aggregate consideration of $23.9&#160;million resulting in a $1.3&#160;million gain on change in fair value.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The notes are our senior, unsecured obligations and are governed by indenture agreements by and between us and Wells Fargo Bank, National Association, as Trustee (the indentures). The 2026 notes bear no interest and will mature on September&#160;1, 2026, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2025 notes bear interest of 0.125% per year which is payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September&#160;15, 2019. The 2025 notes will mature on March&#160;15, 2025, unless repurchased, redeemed or converted in accordance with their terms prior to such date. The 2023 notes bear interest of 0.25% per year which is payable semi-annually in arrears on May 15 and November 15 of each year, beginning on November&#160;15, 2018. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes, and therefore the 2023 notes continue to be convertible until May 18, 2021. We intend to settle the 2023 notes converted pursuant to our election of our option to redeem such 2023 notes through a combination of cash and shares on May 20, 2021. As a result, we have classified the remaining net carrying amount of 2023 notes as a current liability. Additionally, we entered into 2023 notes capped call privately negotiated transactions underlying the remaining outstanding principal amount of 2023 notes. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Each $1,000 principal amount of the 2026 notes will initially be convertible into 9.2978 shares of our common stock. This is equivalent to an initial conversion price of approximately $107.55 per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2025 notes will initially be convertible into 19.3956 shares of our common stock. This is equivalent to an initial conversion price of approximately $51.56 per share, which is subject to adjustment in certain circumstances. Each $1,000 principal amount of the 2023 notes will initially be convertible into 37.1051 shares of our common stock. This is equivalent to an initial conversion price of approximately $26.95 per share, which is subject to adjustment in certain circumstances.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Prior to the close of business on the business day immediately preceding June&#160;1, 2026 for the 2026 notes, December&#160;15, 2024 for the 2025 notes and February&#160;15, 2023 for the 2023 notes, the notes are convertible at the option of holders only upon satisfaction of the following circumstances:</span></div><div style="padding-left:27pt;text-indent:13.5pt"><span><br/></span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">during any calendar quarter commencing after the calendar quarter ending on December 31, 2020 for the 2026 notes, June 30, 2019 for the 2025 notes, and June&#160;30, 2018 for the 2023 notes, if the last reported sale price of our common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the respective conversion price for the notes on each applicable trading day;</span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">during the five-business day period after any 10 consecutive trading day period (the measurement period) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate on each such trading day;</span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">if we call any or all of the notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or</span></div><div style="padding-left:27pt;text-indent:-13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8226;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:10pt">upon the occurrence of certain specified corporate events described in the indentures.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">On or after June&#160;1, 2026 for the 2026 notes, December&#160;15, 2024 for the 2025 notes and February&#160;15, 2023 for the 2023 notes until the close of business on the second scheduled trading day immediately preceding the respective maturity dates, holders may convert their notes at any time, regardless of the foregoing circumstances.&#160;Upon conversion, the notes may be settled in shares of our common stock, cash or a combination of cash and shares of our common stock, at our election.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If we undergo a fundamental change, as defined in the indentures, prior to the respective maturity dates, subject to certain conditions, holders of the notes may require us to repurchase for cash all or any portion of their notes at a repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change repurchase date. In addition, if specific corporate events, described in the indentures, occur prior to the respective maturity dates, we will also increase the conversion rate for a holder who elects to convert their notes in connection with such specified corporate events.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The conditions allowing holders of the 2026 notes to convert were not met and therefore the 2026 notes are not convertible. The first circumstance noted above allowing holders of the 2025 notes to convert was met during the three months ended March 31, 2021, December 31, 2020 and September 30, 2020 and therefore, the 2025 notes were and are convertible starting October 1, 2020 through June 30, 2021. Aside from the extinguishment of $100.0&#160;million aggregate principal amount of the 2025 notes discussed above, we received immaterial requests for conversion of the 2025 notes which we settled in cash during the three months ended March 31, 2021 or intend to settle during the three months ending June 30, 2021. The 2023 notes were and are convertible starting April 1, 2019 through September 30, 2019 and from January 1, 2020 through May 18, 2021. During the three months ended March 31, 2021, we received $24.7&#160;million aggregate principal amount of requests for conversion of the 2023 notes. $4.7&#160;million aggregate principal amount was settled during the three months ended March 31, 2021 for aggregate consideration of $15.9&#160;million, consisting of $4.7&#160;million in cash and 126,003 shares of our common stock with a value of $11.2&#160;million. $20.0&#160;million aggregate principal amount was settled in April 2021 for aggregate consideration of $67.1&#160;million, consisting of $20.0&#160;million in cash and 529,611 shares of our common stock with a value of $47.1&#160;million. During the three months ended March 31, 2021, we terminated 2023 notes capped call transactions underlying 86,826 shares of our common stock and received cash proceeds of $0.9&#160;million. During the year ended December 31, 2020, in connection with our issuance of the 2026 notes, we exchanged $172.0&#160;million aggregate principal amount of the 2023 notes in privately-negotiated transactions for an aggregate consideration of $501.7&#160;million, consisting of $174.6&#160;million in cash and 4,182,320 shares of our common stock with a value of $327.1&#160;million.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The net carrying amount of the notes is as follows (in thousands): </span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:25.215%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.606%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(2)</span></div></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Principal</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,000,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">699,995&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">110,896&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,000,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">800,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">115,576&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Unamortized debt discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(226,732)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(149,138)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(9,953)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Unamortized issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(14,294)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(11,755)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,402)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(11,338)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(10,248)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,245)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net carrying amount</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">985,706&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">688,240&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">109,494&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">761,930&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">640,614&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104,378&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, during the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes and we have classified the remaining net carrying amount of 2023 notes as a current liability.</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth the total interest expense recognized related to the notes (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:37.496%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.604%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="27" style="border-bottom:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Contractual interest expense</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">237&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">66&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">249&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">215&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of debt discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,841&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,125&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">650&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">808&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">168&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">608&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">372&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total interest expense</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">650&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,045&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">234&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,698&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,712&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><div style="text-align:center"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Capped Call Transactions</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Concurrently with the offering of the 2026 notes, 2025 notes and 2023 notes, we used $103.4 million, $97.2 million and $39.2 million, respectively, of the net proceeds to enter into privately negotiated capped call transactions which are expected to generally reduce or offset potential dilution to holders of our common stock upon conversion of the notes and/or offset the potential cash payments we would be required to make in excess of the principal amount of any converted notes. The capped call transactions automatically exercise upon conversion of the notes and, and as of March&#160;31, 2021, cover&#160;9,297,800, 13,576,823 and 4,201,633&#160;shares of our common stock for the 2026 notes, 2025 notes and 2023 notes, respectively, and are intended to effectively increase the overall conversion price from&#160;$107.55 to $156.44 per share for the 2026 notes, $51.56 to $79.32 per share for the 2025 notes and $26.95&#160;to&#160;$40.68&#160;per share for the 2023 notes. The effective increase in conversion price as a result of the capped call transactions serves to reduce potential dilution to holders of our common stock and/or offset the cash payments we are required to make in excess of the principal amount of any converted notes. As these transactions meet certain accounting criteria, they are recorded in stockholders&#8217; equity as a reduction of additional paid-in capital on our condensed consolidated balance sheets and are not accounted for as derivatives. The fair value of the capped call instrument is not remeasured each reporting period. The cost of the capped call is not expected to be deductible for tax purposes.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -URI http://asc.fasb.org/topic&amp;trid=2208564<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>26
<FILENAME>R15.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651508559208">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingenciesDisclosureAbstract', window );"><strong>Commitments and Contingencies Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock', window );">Commitments and Contingencies</a></td>
<td class="text">Commitments and Contingencies<div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">From time to time, third parties may assert patent infringement claims against us in the form of letters, litigation, or other forms of communication. In addition, we may from time to time be subject to other legal proceedings and claims in the ordinary course of business, including claims of alleged infringement of trademarks, copyrights, and other intellectual property rights; employment claims; and general contract or other claims. We may also, from time to time, be subject to various legal or government claims, disputes, or investigations. Such matters may include, but not be limited to, claims, disputes, or investigations related to warranty, refund, breach of contract, employment, intellectual property, government regulation, or compliance or other matters.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 1, 2020, we received notice that a class action lawsuit was filed against Chegg in New York alleging violations of the American with Disabilities Act. The claim asserted that one of Chegg&#8217;s websites is not compatible with software used by vision-impaired individuals. During the three months ended March 31, 2021, we settled this matter for an immaterial amount. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On August 18, 2020, we received notice that a class action lawsuit was filed against Chegg in California alleging violations of the Unruh Civil Rights Act. The claim asserted that one of Chegg&#8217;s websites is not compatible with software used by vision-impaired individuals. During the three months ended March 31, 2021, we settled this matter for an immaterial amount.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On July 21, 2020, VitalSource Technologies LLC (VST), which is wholly owned by Ingram Industries Inc., filed a complaint against Chegg alleging that Chegg breached its contract with VST involving the development of an eTextbook reader and eTextbook reader platform. The suit sought  uncertain damages, but the complaint alleged that they exceeded $75,000. During the three months ended March 31, 2021, we recorded an immaterial loss contingency accrual and subsequently settled this matter in April 2021. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On June 18, 2020, we received a Civil Investigative Demand (CID) from the Federal Trade Commission (FTC) to determine whether we may have violated Section 5 of the FTC Act or the Children's Online Privacy Protection Act (COPPA), as they relate to deceptive or unfair acts or practices related to consumer privacy and/or data security. Pursuant to the CID, the FTC has requested responses to interrogatories and the production of documents pertaining to data breach incidents and our </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">data security and privacy practices generally. Efforts are currently underway to collect the documents and information requested after reaching an agreement with the FTC on the order and timing of our responses.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On May 12, 2020, we received notice that 15,107 arbitration demands were filed against us by individuals represented by the same legal counsel, each alleging to have suffered more than $25,000 in damages as a result of the 2018 Data Incident. On July 1, 2020, an additional 1,007 arbitration demands were filed by the same counsel. On August 12, 2020, an additional 577 arbitration demands were filed by the same counsel; cases have been filed by the same counsel in Maryland and California.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We dispute that these claimants have a valid basis for seeking arbitration, assert that they have acted in bad faith and are working with the Maryland and California courts and plaintiffs&#8217; counsel on resolution of these claims. During the three months ended March 31, 2021, we recorded a loss contingency accrual and a corresponding insurance loss recovery, the net impact of which did not materially impact our condensed consolidated statements of operations. </span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On November 5, 2018, NetSoc, LLC (NetSoc) filed a complaint against us in the U.S. District Court for the Southern District of New York (SDNY) for patent infringement alleging that the Chegg Tutors service infringes U.S. Patent No. 9.978,107 and seeking unspecified compensatory damages. A responsive pleading was filed on February 19, 2019. On January 13, 2020, the SDNY issued an order dismissing the case as to Chegg. On January 30, 2020, NetSoc appealed the dismissal. On April 21, 2020, the SDNY granted Chegg's motion to hold NetSoc's appeal in abeyance pending the outcome of an appeal in the litigation above. On December 2, 2020, the U.S. Patent and Trademark Office determined that the patent is invalid based on two Inter Partes Review (IPR) proceedings and on January 4, 2021, NetSoc filed a notice of appeal appealing the IPR decision.</span></div>Aside from the loss contingency accruals for the VST and 2018 Data Incident matters, we have not recorded any additional amounts related to the above matters as we do not believe that a loss is probable in these remaining matters. We are not aware of any other pending legal matters or claims, individually or in the aggregate, that are expected to have a material adverse impact on our condensed consolidated financial position, results of operations, or cash flows. However, our analysis of whether a claim will proceed to litigation cannot be predicted with certainty, nor can the results of litigation be predicted with certainty. Nevertheless, defending any of these actions, regardless of the outcome, may be costly, time consuming, distract management personnel and have a negative effect on our business. An adverse outcome in any of these actions, including a judgment or settlement, may cause a material adverse effect on our future business, operating results and/or financial condition.<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingenciesDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingenciesDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for commitments and contingencies.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -URI http://asc.fasb.org/topic&amp;trid=2127136<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -URI http://asc.fasb.org/topic&amp;trid=2144648<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559207&amp;loc=d3e25336-109308<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121559207&amp;loc=d3e25336-109308<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingenciesDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>27
<FILENAME>R16.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651417973560">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Guarantees and Indemnifications<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_GuaranteesAndIndemnificationsAbstract', window );"><strong>Guarantees And Indemnifications [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_GuaranteesAndIndemnificationsTextBlock', window );">Guarantees and Indemnifications</a></td>
<td class="text">Guarantees and Indemnifications<div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have agreed to indemnify our directors and officers for certain events or occurrences, subject to certain limits, while such persons are or were serving at our request in such capacity. We may terminate the indemnification agreements with these persons upon termination of employment, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination. We have a directors&#8217; and officers&#8217; insurance policy that limits our potential exposure up to the limits of our insurance coverage. In addition, we also have other indemnification agreements with various vendors against certain claims, liabilities, losses, and damages. The maximum amount of potential future indemnification is unlimited.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We believe the fair value of these indemnification agreements is minimal. We have not recorded any liabilities for these agreements as of March&#160;31, 2021.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_GuaranteesAndIndemnificationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Guarantees and indemnifications.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_GuaranteesAndIndemnificationsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_GuaranteesAndIndemnificationsTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Guarantees and indemnifications.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_GuaranteesAndIndemnificationsTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>28
<FILENAME>R17.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419747240">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract', window );"><strong>Share-based Payment Arrangement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock', window );">Stockholders' Equity</a></td>
<td class="text">Stockholders' Equity<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Equity Offering</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In February 2021, we entered into an underwriting agreement pursuant to which we agreed to issue and sell 10,974,600 shares of our common stock at a public offering price of $102.00 per share generating aggregate net proceeds of $1,091.5&#160;million, after deducting underwriting discounts and commissions of $26.9&#160;million and offering expenses of $1.1&#160;million.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Securities Repurchase Program</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In June 2020, our board of directors approved a securities repurchase program authorizing our repurchase of up to $500.0&#160;million of our common stock and/or convertible notes, through open market purchases, block trades, and/or privately negotiated transactions or pursuant to Rule 10b5-1 plans, in compliance with applicable securities laws and other legal requirements. The timing, volume, and nature of the repurchases will be determined by management based on the capital needs of the business, market conditions, applicable legal requirements, and other factors. During the three months ended March 31, 2021, we repurchased $100.0&#160;million of aggregate principal amount of the 2025 notes in privately-negotiated transactions for an </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">aggregate consideration of $184.9&#160;million. $165.5&#160;million remains under the repurchase program, which will end on December 31, 2021.</span></div><div style="text-indent:27pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Share-based Compensation Expense</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cost of revenues</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">362&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">169&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Research and development</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,959&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">6,991&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Sales and marketing</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,919&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,186&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General and administrative</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,860&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,988&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total share-based compensation expense</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">23,100&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">18,334&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During the three months ended March 31, 2021, we capitalized $0.5&#160;million of share-based compensation expense.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">2021 PSU Grants with Market-Based Conditions</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2021, we granted PSUs under the 2013 Equity Incentive Plan (the 2013 Plan) with market-based conditions to certain of our key employees. The number of shares of our common stock that may be issued to settle these PSUs range from 50% at the threshold level to 150% at the maximum level of the 100% target level of the award depending on achieving a maximum average market value of the per share price of our common stock, for a period of 60 consecutive trading days, over a three-year performance period ending on the third anniversary of the date of grant. No payout will be made for performance below the 50% threshold level. The market value of the per share price of our common stock must reach $123.81, $148.58, or $173.34 at the threshold, target, or maximum levels, respectively, for achievement of the award, which could result in issuance of 244,086, 488,173, or 732,260 shares of our common stock at each respective payout level. These PSUs will vest over a four-year period, with the initial vesting of 50% of the award occurring in March 2024. The number of PSUs granted totaled 732,260 shares, which represents the maximum number of shares, and had a grant date fair value of $68.55 per share, determined under the Monte Carlo simulation approach and described further below. As of March&#160;31, 2021, the market-based conditions have not been met.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fair Value of PSUs with Market-Based Conditions</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">PSUs with market-based conditions are converted into shares of our common stock upon vesting on a one-for-one basis. Vesting is subject to the achievement of certain share price targets and the employee's continuing service to us. If the share price targets are achieved, the awards vest over a four-year period. We estimate the fair value of the PSUs using a Monte Carlo simulation approach, which utilizes the fair value of our common stock based on active market and requires input on the following subjective assumptions:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Expected Term</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The expected term for the awards is the performance period of three years.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Expected Volatility</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The expected volatility is based on the historical average volatility of our stock price over the expected term.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Expected Dividends</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The dividend assumption is based on our historical experience. To date we have not paid any dividends on our common stock.</span></div><div style="padding-left:27pt"><span><br/></span></div><div style="padding-left:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Risk-Free Interest Rate</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">. </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The risk-free interest rate used in the valuation method is the implied yield currently available on the U.S. treasury zero-coupon issues, with a remaining term equal to the expected term.</span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the key assumptions used to determine the fair value of the awards:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:84.280%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="width:1.0%"/><td style="width:13.520%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31, 2021</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expected term (years)</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3.00</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expected volatility</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">49.04&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Dividend yield</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Risk-free interest rate</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">0.27&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">2021 PSU Grants with Financial and Strategic Performance Targets</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In March 2021, we granted PSUs under the 2013 Plan to certain of our key executives. These PSUs entitle the executives to receive a certain number of shares of our common stock based on our satisfaction of certain financial and strategic performance targets during 2021. These PSUs will vest over a three-year period, with the initial vesting occurring in March 2022. The number of shares underlying these March 2021 PSUs granted totaled 278,644 shares and had a grant date fair value of $99.05 per share. As of March&#160;31, 2021, the performance-based milestones are expected to be met at the maximum threshold, resulting in full achievement of these PSUs.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Fair Value of PSUs with Financial and Strategic Performance Targets and RSUs</span></div><div style="text-indent:36pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">PSUs with financial and strategic performance targets and RSUs are converted into shares of our common stock upon vesting on a one-for-one basis. Vesting of PSUs is subject to our achievement of specified financial and strategic performance targets in addition to the employee's continuing service to us while vesting of RSUs is subject to the employee&#8217;s continuing service to us. PSUs vest subject to the achievement of performance objectives and if achieved, typically vest over three years while RSUs are typically fully vested at the end of <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOmVhZmNhOGEwNjI3NjRjZTY5MTQ3OTBjOWFiZWU2MTc2L3NlYzplYWZjYThhMDYyNzY0Y2U2OTE0NzkwYzlhYmVlNjE3Nl83My9mcmFnOjc4N2Q3N2RiNDFmZjQ4YThhZTFjZTQyN2M4NzRkYzQxL3RleHRyZWdpb246Nzg3ZDc3ZGI0MWZmNDhhOGFlMWNlNDI3Yzg3NGRjNDFfMTA5OTUxMTY0NDYzMg_7f49de0b-bd54-4373-8afe-28d7d153a634">three</span> or four years. We assess the achievement of financial and strategic performance targets on a quarterly basis and adjust our share-based compensation expense as appropriate.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">RSU and PSU Activity</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Activity for RSUs and PSUs is as follows:</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">RSUs and PSUs&#160;Outstanding</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Shares Outstanding</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Weighted Average Grant&#160;Date Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance at December 31, 2020</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,816,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">37.82&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Granted</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,885,015&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">87.14&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Released</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,426,075)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">29.29&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Canceled</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(173,936)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38.79&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance at March 31, 2021</span></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,101,004&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">58.39&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of March&#160;31, 2021, our total unrecognized share-based compensation expense related to RSUs and PSUs was approximately $206.4 million, which will be recognized over the remaining weighted-average vesting period of approximately 2.3 years.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -URI http://asc.fasb.org/topic&amp;trid=2228938<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>29
<FILENAME>R18.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420265464">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Related-Party Transactions<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionsAbstract', window );"><strong>Related Party Transactions [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionsDisclosureTextBlock', window );">Related-Party Transactions</a></td>
<td class="text">Related-Party TransactionsOur Chief Executive Officer is a member of the Board of Directors of Adobe Systems Incorporated (Adobe). During the three months ended March 31, 2021 and 2020, we purchased $0.6 million and $0.4 million, respectively, of services from Adobe. We had no revenues during the three months ended March 31, 2021 and $0.1 million of revenues during the three months ended March 31, 2020 from Adobe. We had an immaterial amount and $0.1 million of payables as of March&#160;31, 2021 and December&#160;31, 2020, respectively, to Adobe. We had no outstanding receivables as of March&#160;31, 2021 and December&#160;31, 2020 from Adobe.<div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The immediate family of&#160;one&#160;of our board members is a member of the Board of Directors of PayPal Holdings, Inc. (PayPal). During the&#160;three months ended March 31, 2021 and 2020, we incurred payment processing fees of&#160;$0.7 million&#160;and $0.5 million, respectively, to PayPal.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">One of our board members is also a member of the Board of Directors of Zuora, Inc. (Zuora). During the three months ended March 31, 2021 and 2020, we purchased $0.4&#160;million and $0.2&#160;million of services from Zuora.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionsDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39549-107864<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39549-107864<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39549-107864<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -URI http://asc.fasb.org/topic&amp;trid=2122745<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39691-107864<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionsDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>30
<FILENAME>R19.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651425842472">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Background and Basis of Presentation (Policies)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BasisOfAccountingPolicyPolicyTextBlock', window );">Basis of Presentation</a></td>
<td class="text"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Basis of Presentation</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying condensed consolidated balance sheet as of&#160;March&#160;31, 2021, the condensed consolidated statements of operations, the condensed consolidated statements of comprehensive loss, the condensed consolidated statements of stockholder's equity, and the condensed consolidated statements of cash flows for the three months ended March 31, 2021 and 2020, and the related footnote disclosures are unaudited. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of&#160;March&#160;31, 2021, our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the three months ended March 31, 2021 and 2020. Our results of operations, results of comprehensive loss, stockholder's equity, and cash flows for the&#160;three months ended&#160;March&#160;31, 2021&#160;are not necessarily indicative of the results to be expected for the full year.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We operate in a single segment. Our fiscal year ends on December&#160;31 and in this report we refer to the year ended&#160;December&#160;31, 2020&#160;as&#160;2020.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended&#160;December&#160;31, 2020&#160;(the Annual Report on Form 10-K) filed with the U.S. Securities and Exchange Commission (SEC).</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Except for our policies on convertible senior notes, net, share-based compensation expense, and net loss per share, there have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K. Our policies on convertible senior notes, net and net loss per share were updated as a result of our adoption of Accounting Standards Update (ASU) 2020-06, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> on January 1, 2021 under the modified retrospective method. For further information on ASU 2020-06, see the section below titled &#8220;Recent Accounting Pronouncements&#8221; of this Note 1, &#8220;Background and Basis of Presentation.&#8221;</span></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtPolicyTextBlock', window );">Convertible Senior Notes, net</a></td>
<td class="text"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Convertible Senior Notes, net</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, we issued $1.0 billion in aggregate principal amount of 0% convertible senior notes due in 2026 (2026 notes). In March 2019, we issued $700 million in aggregate principal amount of&#160;0.125%&#160;convertible senior notes due in 2025 (2025 notes) and in April 2019, the initial purchasers fully exercised their option to purchase $100 million of additional 2025 notes for aggregate total gross proceeds of $800 million. In April 2018, we issued&#160;$345 million in aggregate principal amount of&#160;0.25%&#160;convertible senior notes due in 2023 (2023 notes). Collectively, the 2026 notes, 2025 notes, and the 2023 notes are referred to as the &#8220;notes.&#8221; The notes, including the embedded conversion features, are accounted for under the traditional convertible debt accounting model entirely as a liability net of unamortized issuance costs. The carrying amount of the liability is classified as a current liability if we have committed to settle with current assets; otherwise, we classify it as a long-term liability as we retain the election to settle conversion requests in shares of our common stock. The embedded conversion features are not remeasured as long as they do not meet the separation requirement of a derivative; otherwise, they are classified as derivative instruments and recorded at fair value with changes in fair value recorded in other (expense) income, net on our condensed consolidated statements of operations. The fair value of any derivative instruments related to the notes are determined utilizing Level 2 inputs. Issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the term of the notes. In accounting for conversions of the notes, the carrying amount of the converted notes is reduced by the total consideration paid or issued for the respective converted notes and the difference is recorded to additional paid-in capital on our condensed consolidated balance sheets. In accounting for </span></div>extinguishments of the notes, the reacquisition price of the extinguished notes is compared to the carrying amount of the respective extinguished notes and a gain or loss is recorded in other (expense) income, net on our condensed consolidated statements of operations.<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy', window );">Share-based Compensation Expense</a></td>
<td class="text"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Share-based Compensation Expense</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Share-based compensation expense for restricted stock units (RSUs), performance-based restricted stock units (PSUs) with either a market-based condition or financial performance targets, and the employee stock purchase plan (ESPP) is accounted for under the fair value method based on the grant-date fair value of the award. Share-based compensation expense for RSUs and PSUs with financial performance targets is measured based on the closing fair market value of the Company&#8217;s common stock, PSUs with a market-based condition is estimated using a Monte Carlo simulation model, and the ESPP is estimated using the Black-Scholes-Merton option pricing model. We recognize share-based compensation expense, subject to continuing service over the requisite service period, which is generally the vesting period, on a straight-line basis for RSUs and the ESPP and on a graded basis for PSUs. Share-based compensation expense for PSUs with a market-based condition is recognized regardless of whether the market condition is satisfied whereas share-based compensation expense for PSUs with financial performance targets is recognized upon estimated or actual achievement of such targets. These amounts are reduced by estimated forfeitures, which are estimated at the time of the grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.</span></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerSharePolicyTextBlock', window );">Net Loss Per Share</a></td>
<td class="text"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Net Loss Per Share</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, PSUs, RSUs, and shares related to convertible senior notes, to the extent dilutive. Diluted net loss per share assumes that all stock options and dilutive convertible shares were exercised or converted and is computed by applying the treasury stock method for outstanding stock options, PSUs, and RSUs, and the if-converted method for outstanding convertible senior notes. Under the treasury stock method, options, PSUs, and RSUs are assumed to be exercised or vested at the beginning of the period (or at the time of issuance, if later) and as if funds obtained thereby were used to purchase common stock at the average market price during the period. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later).</span></div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UseOfEstimates', window );">Use of Estimates</a></td>
<td class="text">Use of EstimatesThe preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management&#8217;s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations.<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock', window );">Recent Accounting Pronouncements</a></td>
<td class="text"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Recent Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Recently Issued Accounting Pronouncements Not Yet Adopted</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There were no accounting pronouncements issued during the three months ended March 31, 2021 that would have an impact on our financial statements.</span></div><div><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Recently Adopted Accounting Pronouncements</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2020-06, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accounting for Convertible Instruments and Contracts in an Entity's Own Equity</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Debt - Debt with Conversion and Other Options</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share.</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. Adoption of ASU 2020-06 resulted in an increase to convertible senior notes of $378.1&#160;million and a decrease to additional paid-in capital of $465.0 million due to the application of the traditional convertible debt model and no longer separating the embedded conversion feature. Accumulated deficit also decreased by $86.9 million due to the reduction in non-cash interest expense related to the debt discount and we expect interest expense to decrease in future periods. Refer to Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes&#8221; for more information.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BasisOfAccountingPolicyPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BasisOfAccountingPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy related to debt. Includes, but is not limited to, debt issuance costs, the effects of refinancings, method of amortizing debt issuance costs and original issue discount, and classifications of debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84158767&amp;loc=d3e18780-107790<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6802200&amp;loc=d3e1835-112601<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerSharePolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84158767&amp;loc=d3e18780-107790<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3630-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerSharePolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=84158767&amp;loc=d3e18780-107790<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b),(f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UseOfEstimates">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6191-108592<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6161-108592<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6143-108592<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e5967-108592<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6061-108592<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e6132-108592<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=99393423&amp;loc=d3e5967-108592<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UseOfEstimates</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>31
<FILENAME>R20.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419635304">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Background and Basis of Presentation (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock', window );">Schedule of Other Nonoperating Income (Expense)</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other (expense) income, net consists of the following (in thousands):</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on early extinguishment of debt</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(78,152)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Loss on change in fair value of derivative instruments, net</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(7,148)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gain on sale of strategic equity investment</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,338&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest income</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,049&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,856&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">705&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total other (expense) income, net</span></div></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(77,208)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,960&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> For further information, see Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes.&#8221;</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> For further information, see Note 4,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Cash and Cash Equivalents, and Investments.&#8221;</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>32
<FILENAME>R21.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651418228472">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenues (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue from Contract with Customer [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueTableTextBlock', window );">Disaggregation of Revenue</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth our total net revenues for the periods shown disaggregated for our Chegg Services and Required Materials product lines (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:53.870%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:6.655%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Chegg Services</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">162,351&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">100,359&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">61,992&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">62&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Required Materials</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36,027&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">31,231&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,796&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total net revenues</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">198,378&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">131,590&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">66,788&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">51&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock', window );">Schedule of Accounts Receivable</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table presents our accounts receivable, net, deferred revenue, and contract assets balances (in thousands, except percentages):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.561%"><tr><td style="width:1.0%"/><td style="width:53.672%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.647%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.534%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.647%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="width:0.1%"/><td style="width:0.534%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.647%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.534%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:6.685%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Change</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Accounts receivable, net</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,633&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">12,913&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,280)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(10)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Deferred revenue</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">48,608&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">32,620&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15,988&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">49&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Contract assets</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">18,043&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">13,243&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,800&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130551-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisaggregationOfRevenueTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130545-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisaggregationOfRevenueTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>33
<FILENAME>R22.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651505438632">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Net Loss Per Share (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock', window );">Schedule of Earnings Per Share, Basic and Diluted</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.484%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.823%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Numerator:</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(65,179)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(5,713)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:100%">Denominator:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:11.25pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Weighted average shares used to compute net loss per share, basic and diluted</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">134,352&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">122,428&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:15pt"><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss per share, basic and diluted</span></div></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(0.49)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(0.05)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock', window );">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Options to purchase common stock</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">556&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,050&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">PSUs and RSUs</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,982&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,316&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Shares related to convertible senior notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">28,818&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,968&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Employee stock purchase plan </span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">25&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">10&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total common stock equivalents</span></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">32,381&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,344&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>34
<FILENAME>R23.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651417950952">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cash and Cash Equivalents, and Investments (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAbstract', window );"><strong>Cash and Cash Equivalents [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock', window );">Cash, Cash Equivalents and Investments</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following tables show our cash and cash equivalents, and investments&#8217; adjusted cost, unrealized gain, unrealized loss, and fair value as of March&#160;31, 2021 and December&#160;31, 2020 (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.923%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.602%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Gain</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Loss</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24,399&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24,399&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,277&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,276&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash and cash equivalents</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">656,169&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">656,168&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,318&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">78&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(32)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,364&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">609,912&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">938&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(270)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">610,580&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total short-term investments</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,215,230&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,016&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(302)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,215,944&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">673,029&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">118&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(921)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">672,226&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,996&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,998&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term investments</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">712,025&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">122&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(923)</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">711,224&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.923%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.602%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="21" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Gain</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Unrealized Loss</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash and cash equivalents:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15,054&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15,054&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total cash and cash equivalents</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">479,853&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">479,853&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,152&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(6)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,170&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">459,967&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,478&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(48)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">461,397&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total short-term investments</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">664,119&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,502&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(54)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">665,567&#160;</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:3pt double #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,275&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(283)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,597&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,995&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">36&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,031&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total long-term investments</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">523,270&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">641&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(283)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">523,628&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock', window );">Schedule of Available-for-sale Securities Reconciliation</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of&#160;March&#160;31, 2021 (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.707%"><tr><td style="width:1.0%"/><td style="width:74.706%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.630%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.533%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.631%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Adjusted Cost</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Due in 1 year or less</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,314,507&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,315,220&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Due in 1-2 years</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">712,025&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">711,224&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Investments not due at a single maturity date</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,559,025&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,558,937&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the components of cash, cash equivalents, and investments.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>35
<FILENAME>R24.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420896728">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Fair Value Measurement (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueDisclosuresAbstract', window );"><strong>Fair Value Disclosures [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock', window );">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments measured and recorded at fair value on a recurring basis as of March&#160;31, 2021 and December&#160;31, 2020 are classified based on the valuation technique level in the tables below (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:62.350%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.600%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 1</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 2</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Assets:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash equivalents:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,276&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">99,276&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,364&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">605,364&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">610,580&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">610,580&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">672,226&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">672,226&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,998&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38,998&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets measured and recorded at fair value</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,558,937&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">532,493&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,026,444&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:62.350%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.600%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Total</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 1</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Level 2</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Assets:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cash equivalents:</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Money market funds</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Short-term investments:</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Commercial paper</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,170&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">204,170&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">461,397&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">461,397&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Long-term investments:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Corporate debt securities</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,597&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">484,597&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Agency bonds</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,031&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39,031&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total assets measured and recorded at fair value</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,653,994&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">464,799&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,189,195&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock', window );">Fair Value Measurements, Nonrecurring</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The carrying amounts and estimated fair values of the notes as of March&#160;31, 2021 and December&#160;31, 2020 are as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"><tr><td style="width:1.0%"/><td style="width:49.851%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.613%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.613%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.613%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.614%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Carrying Amount</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Estimated Fair Value</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Carrying Amount</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Estimated Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2026 notes</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">985,706&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,054,020&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">761,930&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,129,370&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2025 notes</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">688,240&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,202,129&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">640,614&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,456,800&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2023 notes</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">109,494&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">377,186&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104,378&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">376,949&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Convertible senior notes, net</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,783,440&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,633,335&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,506,922&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,963,119&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. Refer to Note 7,</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#8220;Convertible Senior Notes&#8221; for more information.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueDisclosuresAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueDisclosuresAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>36
<FILENAME>R25.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421756104">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Senior Notes (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfDebtInstrumentsTextBlock', window );">Schedule of Long-term Debt Instruments</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The total net proceeds from the notes are as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:62.350%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.600%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Principal amount</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,000,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">800,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">345,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less initial purchasers&#8217; discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(15,000)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(18,998)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(8,625)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less other issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(904)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(822)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(757)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net proceeds</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">984,096&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">780,180&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">335,618&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfDebtTableTextBlock', window );">Schedule of Debt</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The net carrying amount of the notes is as follows (in thousands): </span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:25.215%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.606%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">March 31, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(2)</span></div></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Principal</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,000,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">699,995&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">110,896&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,000,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">800,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">115,576&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Unamortized debt discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(226,732)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(149,138)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(9,953)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Unamortized issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(14,294)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(11,755)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,402)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(11,338)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(10,248)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,245)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net carrying amount</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">985,706&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">688,240&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">109,494&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">761,930&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">640,614&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">104,378&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, during the three months ended March 31, 2021, we elected our option to redeem the remaining outstanding principal amount of 2023 notes and we have classified the remaining net carrying amount of 2023 notes as a current liability.</span></div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock', window );">Schedule Of Interest Expense Recognized</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table sets forth the total interest expense recognized related to the notes (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:37.496%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.604%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="27" style="border-bottom:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="9" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.2pt;font-weight:700;line-height:100%;position:relative;top:-2.8pt;vertical-align:baseline">(1)</span></div></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2026 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2025 Notes</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2023 Notes</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Contractual interest expense</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">237&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">66&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">249&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">215&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of debt discount</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,841&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,125&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Amortization of issuance costs</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">650&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">808&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">168&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">608&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">372&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total interest expense</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">650&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,045&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">234&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">9,698&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,712&#160;</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method.</span></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Schedule Of Interest Expense Recognized [Table Text Block]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfDebtInstrumentsTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28541-108399<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21506-112644<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(e),(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28551-108399<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21521-112644<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21538-112644<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 470<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=75038535&amp;loc=d3e64711-112823<br><br>Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br><br>Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfDebtInstrumentsTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfDebtTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfDebtTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>37
<FILENAME>R26.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420888808">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract', window );"><strong>Share-based Payment Arrangement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock', window );">Stock-Based Compensation Expense for Employees and Non-Employees</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands):</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Cost of revenues</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">362&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">169&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Research and development</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,959&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">6,991&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Sales and marketing</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,919&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,186&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">General and administrative</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">11,860&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">8,988&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total share-based compensation expense</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">23,100&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">18,334&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock', window );">Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the key assumptions used to determine the fair value of the awards:</span></div><div style="text-indent:27pt"><span><br/></span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:84.280%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td style="width:1.0%"/><td style="width:13.520%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Three Months Ended March 31, 2021</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expected term (years)</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3.00</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expected volatility</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">49.04&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Dividend yield</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#8212;&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Risk-free interest rate</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">0.27&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock', window );">Summary of Restricted Stock Unit Activity</a></td>
<td class="text"><div style="text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Activity for RSUs and PSUs is as follows:</span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:74.777%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.595%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.530%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:10.598%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">RSUs and PSUs&#160;Outstanding</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">&#160;</span></td><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Shares Outstanding</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Weighted Average Grant&#160;Date Fair Value</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance at December 31, 2020</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">4,816,000&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">37.82&#160;</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Granted</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,885,015&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">87.14&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Released</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,426,075)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">29.29&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Canceled</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(173,936)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">38.79&#160;</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance at March 31, 2021</span></td><td colspan="2" style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,101,004&#160;</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">58.39&#160;</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=115993241&amp;loc=d3e301413-122809<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>38
<FILENAME>R27.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421144728">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Background and Basis of Presentation (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
<th class="th"><div>Dec. 31, 2019</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued liabilities</a></td>
<td class="nump">$ 78,089<span></span>
</td>
<td class="nump">$ 68,565<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="nump">1,243,343<span></span>
</td>
<td class="nump">609,635<span></span>
</td>
<td class="nump">$ 462,927<span></span>
</td>
<td class="nump">$ 498,829<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember', window );">Additional Paid-In Capital</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="nump">1,645,352<span></span>
</td>
<td class="nump">1,030,577<span></span>
</td>
<td class="nump">890,258<span></span>
</td>
<td class="nump">916,095<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember', window );">Accumulated Deficit</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="num">$ (400,912)<span></span>
</td>
<td class="num">(422,601)<span></span>
</td>
<td class="num">$ (422,093)<span></span>
</td>
<td class="num">(416,292)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember', window );">Cumulative Effect, Period of Adoption, Adjustment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(88)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember', window );">Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember', window );">Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(378,138)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember', window );">Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Senior Notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">378,100<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember', window );">Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Additional Paid-In Capital</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(465,006)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember', window );">Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Accumulated Deficit</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(86,868)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RestatementAxis=srt_RevisionOfPriorPeriodReclassificationAdjustmentMember', window );">Revision of Prior Period, Reclassification, Adjustment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems', window );"><strong>Error Corrections and Prior Period Adjustments Restatement [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current operating lease liabilities</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued liabilities</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 6,600<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121603541&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=chgg_AccountingStandardsUpdate202006Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=chgg_AccountingStandardsUpdate202006Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RestatementAxis=srt_RevisionOfPriorPeriodReclassificationAdjustmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RestatementAxis=srt_RevisionOfPriorPeriodReclassificationAdjustmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>39
<FILENAME>R28.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419574504">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Background and Basis of Presentation - Other Income (Expenses) (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early extinguishment of debt</a></td>
<td class="num">$ (78,152)<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DerivativeGainLossOnDerivativeNet', window );">Loss on change in fair value of derivative instruments, net</a></td>
<td class="num">(7,148)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal', window );">Gain on sale of strategic equity investment</a></td>
<td class="nump">5,338<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeExpenseNonoperatingNet', window );">Interest income</a></td>
<td class="nump">2,049<span></span>
</td>
<td class="nump">4,856<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_OtherIncomeExpense', window );">Other</a></td>
<td class="nump">705<span></span>
</td>
<td class="nump">104<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingIncomeExpense', window );">Other (expense) income, net</a></td>
<td class="num">$ (77,208)<span></span>
</td>
<td class="nump">$ 4,960<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_OtherIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Other Income (Expense)</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_OtherIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DerivativeGainLossOnDerivativeNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4A<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=121590274&amp;loc=SL5618551-113959<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DerivativeGainLossOnDerivativeNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of an equity method investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(b)(7)(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(b)(9)(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=117329964&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=117329964&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestIncomeExpenseNonoperatingNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net amount of nonoperating interest income (expense).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestIncomeExpenseNonoperatingNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (expense) related to nonoperating activities, classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>40
<FILENAME>R29.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421266520">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Background and Basis of Presentation - Convertible Notes (Details) - Senior Notes - USD ($)<br></strong></div></th>
<th class="th" colspan="3">1 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Apr. 30, 2019</div></th>
<th class="th"><div>Apr. 30, 2018</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member', window );">0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="nump">$ 1,000,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate, stated percentage</a></td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfDebt', window );">Proceeds from issuance of debt</a></td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member', window );">0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 100,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">699,995,000<span></span>
</td>
<td class="nump">800,000,000<span></span>
</td>
<td class="nump">$ 700,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate, stated percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfDebt', window );">Proceeds from issuance of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 800,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 345,000,000<span></span>
</td>
<td class="nump">$ 110,896,000<span></span>
</td>
<td class="nump">$ 115,576,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate, stated percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.25%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfDebt', window );">Proceeds from issuance of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 345,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of debt instrument at time of issuance.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28551-108399<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>41
<FILENAME>R30.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422072312">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenues (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Total net revenues</a></td>
<td class="nump">$ 198,378<span></span>
</td>
<td class="nump">$ 131,590<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease', window );">Change in total net revenues</a></td>
<td class="nump">$ 66,788<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent', window );">Change in total net revenues, percent</a></td>
<td class="nump">51.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized', window );">Contract with customer, liability, revenue recognized</a></td>
<td class="nump">$ 29,500<span></span>
</td>
<td class="nump">17,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNetCurrent', window );">Accounts receivable, net</a></td>
<td class="nump">11,633<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 12,913<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_IncreaseDecreaseInAccountsReceivableNet', window );">Change in accounts receivable</a></td>
<td class="num">$ (1,280)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_IncreaseDecreaseinAccountsReceivablePercent', window );">Change in accounts receivable, percent</a></td>
<td class="num">(10.00%)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Deferred revenue</a></td>
<td class="nump">$ 48,608<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">32,620<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInContractWithCustomerLiability', window );">Change in deferred revenue</a></td>
<td class="nump">$ 15,988<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent', window );">Change in deferred revenue, percent</a></td>
<td class="nump">49.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerAssetNetCurrent', window );">Contract assets</a></td>
<td class="nump">$ 18,043<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 13,243<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_IncreaseDecreaseInContractWithCustomerAssets', window );">Change in contract assets</a></td>
<td class="nump">$ 4,800<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent', window );">Change in contract assets, percent</a></td>
<td class="nump">36.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=chgg_CheggServicesMember', window );">Chegg Services</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Total net revenues</a></td>
<td class="nump">$ 162,351<span></span>
</td>
<td class="nump">100,359<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease', window );">Change in total net revenues</a></td>
<td class="nump">$ 61,992<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent', window );">Change in total net revenues, percent</a></td>
<td class="nump">62.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=chgg_RequiredMaterialsMember', window );">Required Materials</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Total net revenues</a></td>
<td class="nump">$ 36,027<span></span>
</td>
<td class="nump">31,231<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease', window );">Change in total net revenues</a></td>
<td class="nump">$ 4,796<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent', window );">Change in total net revenues, percent</a></td>
<td class="nump">15.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=chgg_TextbookLibraryMember', window );">Textbook Library</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLeaseIncome', window );">Operating lease income</a></td>
<td class="nump">$ 10,700<span></span>
</td>
<td class="nump">$ 12,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_IncreaseDecreaseInAccountsReceivableNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase (Decrease) In Accounts Receivable, Net</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_IncreaseDecreaseInAccountsReceivableNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_IncreaseDecreaseInContractWithCustomerAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase (Decrease) In Contract With Customer, Assets</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_IncreaseDecreaseInContractWithCustomerAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase Decrease In Contract With Customer Assets Percent</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_IncreaseDecreaseinAccountsReceivablePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase (Decrease) in Accounts Receivable, Percent</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_IncreaseDecreaseinAccountsReceivablePercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase (Decrease) in Contract with Customer, Liability, Percent</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease)</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease), Percent</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121593590&amp;loc=d3e4428-111522<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6676-107765<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=121593590&amp;loc=d3e4531-111522<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsReceivableNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerAssetNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121556615&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121556615&amp;loc=SL49130533-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerAssetNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121556615&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121556615&amp;loc=SL49130532-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisaggregationOfRevenueLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisaggregationOfRevenueLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInContractWithCustomerLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInContractWithCustomerLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLeaseIncome">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 30<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121576215&amp;loc=SL77919372-209981<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121561866&amp;loc=SL77919311-209978<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 270<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6A<br> -URI http://asc.fasb.org/extlink&amp;oid=121640914&amp;loc=SL77927221-108306<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLeaseIncome</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121604090&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=chgg_CheggServicesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=chgg_CheggServicesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=chgg_RequiredMaterialsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=chgg_RequiredMaterialsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=chgg_TextbookLibraryMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=chgg_TextbookLibraryMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>42
<FILENAME>R31.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651418232136">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($)<br> $ / shares in Units, shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAbstract', window );"><strong>Numerator:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">$ (65,179)<span></span>
</td>
<td class="num">$ (5,713)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract', window );"><strong>Denominator:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted', window );">Weighted average shares used to compute net loss per share, basic and diluted</a></td>
<td class="nump">134,352<span></span>
</td>
<td class="nump">122,428<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDiluted', window );">Net loss per share, basic and diluted (in dollars per share)</a></td>
<td class="num">$ (0.49)<span></span>
</td>
<td class="num">$ (0.05)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=d3e1337-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669619-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8924-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22595-107794<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121641772&amp;loc=SL7669625-108580<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8736-108599<br><br>Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22499-107794<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22663-107794<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=75031198&amp;loc=d3e14064-108612<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8906-108599<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22583-107794<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 20: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121326447&amp;loc=SL5780133-109256<br><br>Reference 21: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 22: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=120311839&amp;loc=d3e8933-108599<br><br>Reference 23: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>43
<FILENAME>R32.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651508646856">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details) - shares<br> shares in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Total common stock equivalents (in shares)</a></td>
<td class="nump">32,381<span></span>
</td>
<td class="nump">8,344<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_StockOptionMember', window );">Options to purchase common stock</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Total common stock equivalents (in shares)</a></td>
<td class="nump">556<span></span>
</td>
<td class="nump">1,050<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember', window );">PSUs and RSUs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Total common stock equivalents (in shares)</a></td>
<td class="nump">2,982<span></span>
</td>
<td class="nump">3,316<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_SeniorNotesMember', window );">Shares related to convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Total common stock equivalents (in shares)</a></td>
<td class="nump">28,818<span></span>
</td>
<td class="nump">3,968<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_EmployeeStockMember', window );">Employee stock purchase plan</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Total common stock equivalents (in shares)</a></td>
<td class="nump">25<span></span>
</td>
<td class="nump">10<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_StockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_StockOptionMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_EmployeeStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis=us-gaap_EmployeeStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>44
<FILENAME>R33.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651519172696">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cash and Cash Equivalents, and Investments - Schedule of Available For Sale Securities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">$ 2,559,025<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">2,558,937<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CashAndCashEquivalentsMember', window );">Cash and cash equivalents:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">656,169<span></span>
</td>
<td class="nump">$ 479,853<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">1<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(2)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">656,168<span></span>
</td>
<td class="nump">479,853<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_ShortTermInvestmentsMember', window );">Short-term investments:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">1,215,230<span></span>
</td>
<td class="nump">664,119<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">1,016<span></span>
</td>
<td class="nump">1,502<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(302)<span></span>
</td>
<td class="num">(54)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">1,215,944<span></span>
</td>
<td class="nump">665,567<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_OtherLongTermInvestmentsMember', window );">Long-term investments:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">712,025<span></span>
</td>
<td class="nump">523,270<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">122<span></span>
</td>
<td class="nump">641<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(923)<span></span>
</td>
<td class="num">(283)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">711,224<span></span>
</td>
<td class="nump">523,628<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Short-term investments:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">605,318<span></span>
</td>
<td class="nump">204,152<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">78<span></span>
</td>
<td class="nump">24<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(32)<span></span>
</td>
<td class="num">(6)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">605,364<span></span>
</td>
<td class="nump">204,170<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_CorporateBondSecuritiesMember', window );">Corporate debt securities | Short-term investments:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">609,912<span></span>
</td>
<td class="nump">459,967<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">938<span></span>
</td>
<td class="nump">1,478<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(270)<span></span>
</td>
<td class="num">(48)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">610,580<span></span>
</td>
<td class="nump">461,397<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_CorporateBondSecuritiesMember', window );">Corporate debt securities | Long-term investments:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">673,029<span></span>
</td>
<td class="nump">484,275<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">118<span></span>
</td>
<td class="nump">605<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(921)<span></span>
</td>
<td class="num">(283)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">672,226<span></span>
</td>
<td class="nump">484,597<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_AgencySecuritiesMember', window );">Agency bonds | Long-term investments:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">38,996<span></span>
</td>
<td class="nump">38,995<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">4<span></span>
</td>
<td class="nump">36<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(2)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">38,998<span></span>
</td>
<td class="nump">39,031<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAxis=us-gaap_CashMember', window );">Cash | Cash and cash equivalents:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">24,399<span></span>
</td>
<td class="nump">15,054<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">24,399<span></span>
</td>
<td class="nump">15,054<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAxis=us-gaap_MoneyMarketFundsMember', window );">Money market funds | Cash and cash equivalents:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">532,493<span></span>
</td>
<td class="nump">464,799<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">532,493<span></span>
</td>
<td class="nump">$ 464,799<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Cash and cash equivalents:</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems', window );"><strong>Debt Securities, Available-for-sale [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">99,277<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax', window );">Unrealized Gain</a></td>
<td class="nump">1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax', window );">Unrealized Loss</a></td>
<td class="num">(2)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Fair Value</a></td>
<td class="nump">$ 99,276<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121558606&amp;loc=SL82898722-210454<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(6))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121558606&amp;loc=SL82898722-210454<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121553693&amp;loc=d3e26610-111562<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (aa)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentTypeAxis=us-gaap_CashAndCashEquivalentsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_CashAndCashEquivalentsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentTypeAxis=us-gaap_ShortTermInvestmentsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_ShortTermInvestmentsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentTypeAxis=us-gaap_OtherLongTermInvestmentsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_OtherLongTermInvestmentsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_CommercialPaperMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnderlyingAssetClassAxis=us-gaap_CommercialPaperMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_CorporateBondSecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnderlyingAssetClassAxis=us-gaap_CorporateBondSecuritiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnderlyingAssetClassAxis=us-gaap_AgencySecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnderlyingAssetClassAxis=us-gaap_AgencySecuritiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAxis=us-gaap_CashMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAxis=us-gaap_CashMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAxis=us-gaap_MoneyMarketFundsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAxis=us-gaap_MoneyMarketFundsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAxis=us-gaap_CommercialPaperMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAxis=us-gaap_CommercialPaperMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>45
<FILENAME>R34.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420716808">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cash and Cash Equivalents, and Investments - Contractual Maturity (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2021 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAbstract', window );"><strong>Cash and Cash Equivalents [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost', window );">Due in 1 year or less, Cost</a></td>
<td class="nump">$ 1,314,507<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis', window );">Due in 1-2 years, Cost</a></td>
<td class="nump">712,025<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost', window );">Investments not due at a single maturity date, Cost</a></td>
<td class="nump">532,493<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis', window );">Adjusted Cost</a></td>
<td class="nump">2,559,025<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue', window );">Due in 1 year or less, Fair Value</a></td>
<td class="nump">1,315,220<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue', window );">Due in 1-2 years, Fair Value</a></td>
<td class="nump">711,224<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue', window );">Investments not due at a single maturity date, Fair Value</a></td>
<td class="nump">532,493<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities', window );">Total, Fair Value</a></td>
<td class="nump">$ 2,558,937<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity', window );">Weighted average maturity</a></td>
<td class="text">12 months<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_AvailableForSaleSecuritiesWeightedAverageMaturity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Available For Sale Securities, Weighted Average Maturity</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_AvailableForSaleSecuritiesWeightedAverageMaturity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Available-for-sale Securities, Debt Maturities, Year One Through Two, Amortized Cost Basis</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Available-for-sale Securities, Debt Maturities, Year One Through Two, Fair Value</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121558606&amp;loc=SL82898722-210454<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27198-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 320<br> -Section 50<br> -Paragraph 3A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120252992&amp;loc=SL120269850-112803<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27198-111563<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27198-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27198-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AvailableForSaleSecuritiesDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(6))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121558606&amp;loc=SL82898722-210454<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121553693&amp;loc=d3e26610-111562<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 320<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (aa)<br> -URI http://asc.fasb.org/extlink&amp;oid=121645371&amp;loc=d3e27161-111563<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AvailableForSaleSecuritiesDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>46
<FILENAME>R35.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420909672">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cash and Cash Equivalents, and Investments - Strategic Investment (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
<th class="th"><div>Sep. 30, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfInvestmentsLineItems', window );"><strong>Schedule of Investments [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal', window );">Gain on sale of strategic equity investment</a></td>
<td class="num">$ (5,338)<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSaleOfEquityMethodInvestments', window );">Proceeds from sale of strategic equity investment</a></td>
<td class="nump">6,845<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chgg_TAPDInc.Member', window );">TAPD, Inc.</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfInvestmentsLineItems', window );"><strong>Schedule of Investments [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount', window );">Cost method investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chgg_ForeignEntityMember', window );">Foreign Entity</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfInvestmentsLineItems', window );"><strong>Schedule of Investments [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount', window );">Cost method investment</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentSoldCarryingAmount', window );">Consideration received on sale</a></td>
<td class="nump">8,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal', window );">Gain on sale of strategic equity investment</a></td>
<td class="num">(5,300)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSaleOfEquityMethodInvestments', window );">Proceeds from sale of strategic equity investment</a></td>
<td class="nump">$ 6,800<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of an equity method investment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(b)(7)(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(b)(9)(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquityMethodInvestmentSoldCarryingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the entity's equity method investment which has been sold.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityMethodInvestmentSoldCarryingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investment in equity security without readily determinable fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 321<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=120269885&amp;loc=SL75117539-209714<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSaleOfEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3179-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSaleOfEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfInvestmentsLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfInvestmentsLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chgg_TAPDInc.Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chgg_TAPDInc.Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chgg_ForeignEntityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=chgg_ForeignEntityMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>47
<FILENAME>R36.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422503976">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Fair Value Measurement - Financial Instruments (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">$ 1,215,944<span></span>
</td>
<td class="nump">$ 665,567<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">711,224<span></span>
</td>
<td class="nump">523,628<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Fair Value, Measurements, Recurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total assets measured and recorded at fair value</a></td>
<td class="nump">2,558,937<span></span>
</td>
<td class="nump">1,653,994<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Fair Value, Measurements, Recurring | Level 1</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total assets measured and recorded at fair value</a></td>
<td class="nump">532,493<span></span>
</td>
<td class="nump">464,799<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember', window );">Fair Value, Measurements, Recurring | Level 2</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total assets measured and recorded at fair value</a></td>
<td class="nump">2,026,444<span></span>
</td>
<td class="nump">1,189,195<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Fair Value, Measurements, Recurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">605,364<span></span>
</td>
<td class="nump">204,170<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Fair Value, Measurements, Recurring | Level 1</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Fair Value, Measurements, Recurring | Level 2</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">605,364<span></span>
</td>
<td class="nump">204,170<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CorporateBondSecuritiesMember', window );">Corporate debt securities | Fair Value, Measurements, Recurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">610,580<span></span>
</td>
<td class="nump">461,397<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">672,226<span></span>
</td>
<td class="nump">484,597<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CorporateBondSecuritiesMember', window );">Corporate debt securities | Fair Value, Measurements, Recurring | Level 1</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_CorporateBondSecuritiesMember', window );">Corporate debt securities | Fair Value, Measurements, Recurring | Level 2</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermInvestments', window );">Short-term investments</a></td>
<td class="nump">610,580<span></span>
</td>
<td class="nump">461,397<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">672,226<span></span>
</td>
<td class="nump">484,597<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_AgencySecuritiesMember', window );">Agency bonds | Fair Value, Measurements, Recurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">38,998<span></span>
</td>
<td class="nump">39,031<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_AgencySecuritiesMember', window );">Agency bonds | Fair Value, Measurements, Recurring | Level 1</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentTypeAxis=us-gaap_AgencySecuritiesMember', window );">Agency bonds | Fair Value, Measurements, Recurring | Level 2</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermInvestments', window );">Long-term investments</a></td>
<td class="nump">38,998<span></span>
</td>
<td class="nump">39,031<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember', window );">Money market funds | Fair Value, Measurements, Recurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">532,493<span></span>
</td>
<td class="nump">464,799<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember', window );">Money market funds | Fair Value, Measurements, Recurring | Level 1</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">532,493<span></span>
</td>
<td class="nump">464,799<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember', window );">Money market funds | Fair Value, Measurements, Recurring | Level 2</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByAssetClassAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Fair Value, Measurements, Recurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">99,276<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByAssetClassAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Fair Value, Measurements, Recurring | Level 1</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByAssetClassAxis=us-gaap_CommercialPaperMember', window );">Commercial paper | Fair Value, Measurements, Recurring | Level 2</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash equivalents</a></td>
<td class="nump">$ 99,276<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=117815213&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsFairValueDisclosure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsFairValueDisclosure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.12)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(1)(g))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_CommercialPaperMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentTypeAxis=us-gaap_CorporateBondSecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_CorporateBondSecuritiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentTypeAxis=us-gaap_AgencySecuritiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentTypeAxis=us-gaap_AgencySecuritiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByAssetClassAxis=us-gaap_CommercialPaperMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByAssetClassAxis=us-gaap_CommercialPaperMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>48
<FILENAME>R37.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422583720">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Fair Value Measurement - Debt (Details) - Senior Notes - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember', window );">Carrying Amount | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">$ 1,783,440<span></span>
</td>
<td class="nump">$ 1,506,922<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember', window );">Estimated Fair Value | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">2,633,335<span></span>
</td>
<td class="nump">2,963,119<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member', window );">0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized issuance costs</a></td>
<td class="num">(14,294)<span></span>
</td>
<td class="num">(11,338)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet', window );">Unamortized debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(226,732)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member', window );">0% Convertible Senior Notes Due 2026 | Carrying Amount | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">985,706<span></span>
</td>
<td class="nump">761,930<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member', window );">0% Convertible Senior Notes Due 2026 | Estimated Fair Value | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">1,054,020<span></span>
</td>
<td class="nump">1,129,370<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member', window );">0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized issuance costs</a></td>
<td class="num">(11,755)<span></span>
</td>
<td class="num">(10,248)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet', window );">Unamortized debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(149,138)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member', window );">0.125% Convertible Senior Notes Due 2025 | Carrying Amount | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">688,240<span></span>
</td>
<td class="nump">640,614<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member', window );">0.125% Convertible Senior Notes Due 2025 | Estimated Fair Value | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">1,202,129<span></span>
</td>
<td class="nump">1,456,800<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized issuance costs</a></td>
<td class="num">(1,402)<span></span>
</td>
<td class="num">(1,245)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet', window );">Unamortized debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(9,953)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023 | Carrying Amount | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">109,494<span></span>
</td>
<td class="nump">104,378<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023 | Estimated Fair Value | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Convertible senior notes</a></td>
<td class="nump">$ 377,186<span></span>
</td>
<td class="nump">$ 376,949<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt discount (premium).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28555-108399<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28551-108399<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28567-108399<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28541-108399<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredFinanceCostsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredFinanceCostsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<FILENAME>R38.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651420558248">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Acquisitions (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Feb. 22, 2021</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessAcquisitionLineItems', window );"><strong>Business Acquisition [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 290,601<span></span>
</td>
<td class="nump">$ 285,214<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessAcquisitionAxis=chgg_TechnologyCompanyMember', window );">Technology Company</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessAcquisitionLineItems', window );"><strong>Business Acquisition [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_BusinessCombinationPercentOwnershipAcquired', window );">Ownership percent of stock acquired</a></td>
<td class="nump">100.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireBusinessesGross', window );">Initial cash consideration</a></td>
<td class="nump">$ 8,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets', window );">Acquired assets</a></td>
<td class="nump">400<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles', window );">Intangible assets</a></td>
<td class="nump">3,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">5,800<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities', window );">Liabilities assumed</a></td>
<td class="nump">$ 1,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_BusinessCombinationPercentOwnershipAcquired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Business Combination, Percent Ownership Acquired</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_BusinessCombinationPercentOwnershipAcquired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessAcquisitionLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessAcquisitionLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of assets acquired at the acquisition date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121647850&amp;loc=d3e4845-128472<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of identifiable intangible assets recognized as of the acquisition date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 10<br> -Section 55<br> -Paragraph 37<br> -URI http://asc.fasb.org/extlink&amp;oid=121600890&amp;loc=d3e2207-128464<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121647850&amp;loc=d3e4845-128472<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities assumed at the acquisition date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=121647850&amp;loc=d3e4845-128472<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(10)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120320667&amp;loc=SL49117168-202975<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=99380562&amp;loc=d3e13770-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Goodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireBusinessesGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120321790&amp;loc=d3e6927-128479<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireBusinessesGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessAcquisitionAxis=chgg_TechnologyCompanyMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessAcquisitionAxis=chgg_TechnologyCompanyMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>50
<FILENAME>R39.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651410894184">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Senior Notes (Details)<br></strong></div></th>
<th class="th" colspan="4">1 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th">
<div>Apr. 30, 2021 </div>
<div>USD ($) </div>
<div>shares</div>
</th>
<th class="th">
<div>Aug. 31, 2020 </div>
<div>USD ($) </div>
<div>shares</div>
</th>
<th class="th">
<div>Apr. 30, 2019 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Apr. 30, 2018 </div>
<div>USD ($) </div>
<div>day</div>
</th>
<th class="th">
<div>Mar. 31, 2021 </div>
<div>USD ($) </div>
<div>$ / shares </div>
<div>shares</div>
</th>
<th class="th">
<div>Mar. 31, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Mar. 31, 2019 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 189,849,000<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early extinguishment of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(78,152,000)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromConvertibleDebt', window );">Proceeds from exercise of convertible senior notes capped call</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">24,812,000<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtConversionOriginalDebtAmount1', window );">Debt conversion, converted amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">24,700,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,000,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate, stated percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfDebt', window );">Proceeds from issuance of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_PaymentsForInitialPurchasersDiscount', window );">Less initial purchasers&#8217; discount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(15,000,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfDebtIssuanceCosts', window );">Less other issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(904,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Net proceeds</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 984,096,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionRatio1', window );">Conversion ratio</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.0092978<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 107.55<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0% Convertible Senior Notes Due 2026 | Capped Call</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Net proceeds</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 103,400,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 156.44<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0% Convertible Senior Notes Due 2026, Additional Notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 100,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 699,995,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">800,000,000<span></span>
</td>
<td class="nump">$ 700,000,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate, stated percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.125%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfDebt', window );">Proceeds from issuance of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">800,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_PaymentsForInitialPurchasersDiscount', window );">Less initial purchasers&#8217; discount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(18,998,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfDebtIssuanceCosts', window );">Less other issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(822,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Net proceeds</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 780,180,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentRepurchasedFaceAmount', window );">Repurchased principal amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">184,900,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DerivativeLiabilities', window );">Derivative liability</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">176,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnSaleOfDerivatives', window );">Gain (loss) in change in fair value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (8,400,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebt', window );">Carrying amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">98,300,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on early extinguishment of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (78,200,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionRatio1', window );">Conversion ratio</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.0193956<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 51.56<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.125% Convertible Senior Notes Due 2025 | Capped Call</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Net proceeds</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 97,200,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DerivativeLiabilities', window );">Derivative liability</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 22,600,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnSaleOfDerivatives', window );">Gain (loss) in change in fair value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,300,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentConvertibleSharesTerminated', window );">Debt instrument, convertible, shares terminated (in shares) | shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,939,560<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromConvertibleDebt', window );">Proceeds from exercise of convertible senior notes capped call</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 23,900,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 79.32<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Face value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 345,000,000<span></span>
</td>
<td class="nump">$ 110,896,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">115,576,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Interest rate, stated percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.25%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes', window );">Option to purchase additional notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 45,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfDebt', window );">Proceeds from issuance of debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">345,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_PaymentsForInitialPurchasersDiscount', window );">Less initial purchasers&#8217; discount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(8,625,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfDebtIssuanceCosts', window );">Less other issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(757,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Net proceeds</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 335,618,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 4,700,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionRatio1', window );">Conversion ratio</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.0371051<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 26.95<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtConversionOriginalDebtAmount1', window );">Debt conversion, converted amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 4,700,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentDebtConversionConsideration', window );">Debt conversion, consideration</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 15,900,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued', window );">Debt conversion, equity instruments issued (in shares) | shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">126,003<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount', window );">Debt conversion, equity instruments issued, amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 11,200,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023 | Subsequent Event</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="nump">$ 20,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtConversionOriginalDebtAmount1', window );">Debt conversion, converted amount</a></td>
<td class="nump">20,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentDebtConversionConsideration', window );">Debt conversion, consideration</a></td>
<td class="nump">$ 67,100,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued', window );">Debt conversion, equity instruments issued (in shares) | shares</a></td>
<td class="nump">529,611<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount', window );">Debt conversion, equity instruments issued, amount</a></td>
<td class="nump">$ 47,100,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023 | Sale Price Is Greater Or Equal 130%</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleThresholdTradingDays', window );">Threshold trading days | day</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">20<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1', window );">Threshold consecutive trading days | day</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">30<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger', window );">Threshold percentage of stock price trigger</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">130.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023 | Trading Price Per $1,000 Principal Amount Less Than 98%</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleThresholdTradingDays', window );">Threshold trading days | day</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">5<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1', window );">Threshold consecutive trading days | day</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">10<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023 | Trading Price Per $1,000 Principal Amount Less Than 98% | Maximum</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger', window );">Threshold percentage of stock price trigger</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">98.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023 | Capped Call</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Net proceeds</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 39,200,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentConvertibleSharesTerminated', window );">Debt instrument, convertible, shares terminated (in shares) | shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">86,826<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price | $ / shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 40.68<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ProceedsFromCappedCall', window );">Proceeds from capped call</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 900,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">Senior Notes | 0.25% Convertible Senior Notes Due 2023 | Exchange Of Aggregate Principal Amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentRepurchasedFaceAmount', window );">Repurchased principal amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 172,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">174,600,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred', window );">Aggregate consideration for principal amount exchanged</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 501,700,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtConversionConvertedInstrumentSharesIssued1', window );">Debt conversion, shares issued (in shares) | shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">4,182,320<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable', window );">Debt conversion, shares issued, value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 327,100,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Consideration Transferred, Equity Interests Issued And Issuable</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentConvertibleSharesTerminated">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Convertible, Shares Terminated</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentConvertibleSharesTerminated</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentDebtConversionConsideration">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Debt Conversion, Consideration</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentDebtConversionConsideration</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Debt Conversion, Equity Instruments Issued</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Debt Conversion, Equity Instruments Issued, Amount</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Face Amount, Option To Purchase Additional Notes</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Principal Amount Exchanged, Consideration Transferred</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_PaymentsForInitialPurchasersDiscount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Payments For Initial Purchasers Discount</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_PaymentsForInitialPurchasersDiscount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ProceedsFromCappedCall">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Proceeds From Capped Call</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ProceedsFromCappedCall</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtConversionConvertedInstrumentSharesIssued1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4332-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4304-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtConversionConvertedInstrumentSharesIssued1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtConversionOriginalDebtAmount1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4304-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=d3e4332-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtConversionOriginalDebtAmount1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleConversionPrice1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The price per share of the conversion feature embedded in the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120520924&amp;loc=SL6031898-161870<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleConversionPrice1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleConversionRatio1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21521-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21506-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleConversionRatio1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:pureItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleThresholdTradingDays">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleThresholdTradingDays</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of debt instrument at time of issuance.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28551-108399<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentRepurchasedFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of the original debt instrument that was repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentRepurchasedFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DerivativeLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 20<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=51824906&amp;loc=SL20225862-175312<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121572278&amp;loc=d3e13433-108611<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 20<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=99393222&amp;loc=SL20226008-175313<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DerivativeLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainLossOnSaleOfDerivatives">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.13(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnSaleOfDerivatives</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=117329964&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=117329964&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120520924&amp;loc=SL6031897-161870<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfDebtIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfDebtIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromDebtNetOfIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtCovenantTermsAxis=chgg_SalePriceIsGreaterOrEqual130PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtCovenantTermsAxis=chgg_SalePriceIsGreaterOrEqual130PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtCovenantTermsAxis=chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtCovenantTermsAxis=chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentTransactionAxis=chgg_ExchangeOfAggregatePrincipalAmountMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentTransactionAxis=chgg_ExchangeOfAggregatePrincipalAmountMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>51
<FILENAME>R40.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651424109480">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Convertible Senior Notes - Net Carrying Amount (Details) - Senior Notes - USD ($)<br></strong></div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Apr. 30, 2019</div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Apr. 30, 2018</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Principal</a></td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="nump">$ 1,000,000,000<span></span>
</td>
<td class="nump">$ 1,000,000,000.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet', window );">Unamortized debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(226,732,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized issuance costs</a></td>
<td class="num">(14,294,000)<span></span>
</td>
<td class="num">(11,338,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Principal</a></td>
<td class="nump">699,995,000<span></span>
</td>
<td class="nump">800,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 100,000,000<span></span>
</td>
<td class="nump">$ 700,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet', window );">Unamortized debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(149,138,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized issuance costs</a></td>
<td class="num">(11,755,000)<span></span>
</td>
<td class="num">(10,248,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFaceAmount', window );">Principal</a></td>
<td class="nump">110,896,000<span></span>
</td>
<td class="nump">115,576,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 345,000,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet', window );">Unamortized debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="num">(9,953,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Unamortized issuance costs</a></td>
<td class="num">(1,402,000)<span></span>
</td>
<td class="num">(1,245,000)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember', window );">Carrying Amount | Fair Value, Measurements, Nonrecurring</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Net carrying amount</a></td>
<td class="nump">1,783,440,000<span></span>
</td>
<td class="nump">1,506,922,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember', window );">Carrying Amount | Fair Value, Measurements, Nonrecurring | 0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Net carrying amount</a></td>
<td class="nump">985,706,000<span></span>
</td>
<td class="nump">761,930,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember', window );">Carrying Amount | Fair Value, Measurements, Nonrecurring | 0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Net carrying amount</a></td>
<td class="nump">688,240,000<span></span>
</td>
<td class="nump">640,614,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember', window );">Carrying Amount | Fair Value, Measurements, Nonrecurring | 0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Net carrying amount</a></td>
<td class="nump">$ 109,494,000<span></span>
</td>
<td class="nump">$ 104,378,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentFaceAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face (par) amount of debt instrument at time of issuance.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28551-108399<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentFaceAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt discount (premium).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28555-108399<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28551-108399<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28567-108399<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28541-108399<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=114775985&amp;loc=d3e28878-108400<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredFinanceCostsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredFinanceCostsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>52
<FILENAME>R41.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421766104">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Senior Notes - Interest Expense Recognized (Details) - Senior Notes - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebtExcludingAmortization', window );">Contractual interest expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfDebtDiscountPremium', window );">Amortization of debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfFinancingCosts', window );">Amortization of issuance costs</a></td>
<td class="nump">650<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebt', window );">Total interest expense</a></td>
<td class="nump">650<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebtExcludingAmortization', window );">Contractual interest expense</a></td>
<td class="nump">237<span></span>
</td>
<td class="nump">$ 249<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfDebtDiscountPremium', window );">Amortization of debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">8,841<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfFinancingCosts', window );">Amortization of issuance costs</a></td>
<td class="nump">808<span></span>
</td>
<td class="nump">608<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebt', window );">Total interest expense</a></td>
<td class="nump">1,045<span></span>
</td>
<td class="nump">9,698<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember', window );">0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebtExcludingAmortization', window );">Contractual interest expense</a></td>
<td class="nump">66<span></span>
</td>
<td class="nump">215<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfDebtDiscountPremium', window );">Amortization of debt discount</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">3,125<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfFinancingCosts', window );">Amortization of issuance costs</a></td>
<td class="nump">168<span></span>
</td>
<td class="nump">372<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebt', window );">Total interest expense</a></td>
<td class="nump">$ 234<span></span>
</td>
<td class="nump">$ 3,712<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfDebtDiscountPremium">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28541-108399<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AmortizationOfDebtDiscountPremium</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfFinancingCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense attributable to debt issuance costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3602-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=119993939&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AmortizationOfFinancingCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpenseDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense for debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120520924&amp;loc=SL6036836-161870<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpenseDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpenseDebtExcludingAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpenseDebtExcludingAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>53
<FILENAME>R42.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422469640">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Convertible Senior Notes - Capped Call (Details) - Senior Notes - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="3">1 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Aug. 31, 2020</div></th>
<th class="th"><div>Apr. 30, 2019</div></th>
<th class="th"><div>Apr. 30, 2018</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member', window );">0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Proceeds from issuance of convertible senior notes, net of issuance costs</a></td>
<td class="nump">$ 984,096<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 107.55<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member', window );">0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Proceeds from issuance of convertible senior notes, net of issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 780,180<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">51.56<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Proceeds from issuance of convertible senior notes, net of issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 335,618<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 26.95<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember', window );">Capped Call | 0% Convertible Senior Notes Due 2026</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Proceeds from issuance of convertible senior notes, net of issuance costs</a></td>
<td class="nump">$ 103,400<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentConvertibleShares', window );">Debt instrument, convertible (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">9,297,800<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 156.44<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember', window );">Capped Call | 0.125% Convertible Senior Notes Due 2025</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Proceeds from issuance of convertible senior notes, net of issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 97,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentConvertibleShares', window );">Debt instrument, convertible (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">13,576,823<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 79.32<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember', window );">Capped Call | 0.25% Convertible Senior Notes Due 2023</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts', window );">Proceeds from issuance of convertible senior notes, net of issuance costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 39,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_DebtInstrumentConvertibleShares', window );">Debt instrument, convertible (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">4,201,633<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentConvertibleConversionPrice1', window );">Conversion price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 40.68<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentConvertibleShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Debt Instrument, Convertible, Shares</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentConvertibleShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentConvertibleConversionPrice1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The price per share of the conversion feature embedded in the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120520924&amp;loc=SL6031898-161870<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentConvertibleConversionPrice1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromDebtNetOfIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromDebtNetOfIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0ConvertibleSeniorNotesDue2026Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.125PercentConvertibleSeniorNotesDue2025Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_DebtInstrumentTransactionAxis=chgg_CappedCallMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>54
<FILENAME>R43.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651425045192">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Commitments and Contingencies (Details)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Aug. 12, 2020 </div>
<div>numberOfPlaintiffs</div>
</th>
<th class="th">
<div>Jul. 01, 2020 </div>
<div>numberOfPlaintiffs</div>
</th>
<th class="th">
<div>May 12, 2020 </div>
<div>USD ($) </div>
<div>numberOfPlaintiffs</div>
</th>
<th class="th">
<div>Jul. 21, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_LitigationCaseAxis=chgg_A2018DataIncidentArbitrationDemandsMember', window );">2018 Data Incident, Arbitration Demands</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingenciesLineItems', window );"><strong>Loss Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingencyNewClaimsFiledNumber', window );">Loss contingency, number of arbitration demands filed | numberOfPlaintiffs</a></td>
<td class="nump">577<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_LitigationCaseAxis=chgg_A2018DataIncidentArbitrationDemandsMember', window );">2018 Data Incident, Arbitration Demands | Pending Litigation</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingenciesLineItems', window );"><strong>Loss Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingencyNewClaimsFiledNumber', window );">Loss contingency, number of arbitration demands filed | numberOfPlaintiffs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,007<span></span>
</td>
<td class="nump">15,107<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingencyDamagesSoughtValue', window );">Loss contingency, damages sought, value | $</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 25<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_LitigationCaseAxis=chgg_VitalSourceTechnologiesLLCVSTVsCheggMember', window );">VitalSource Technologies LLC (VST) vs. Chegg | Pending Litigation</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingenciesLineItems', window );"><strong>Loss Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingencyEstimateOfPossibleLoss', window );">Estimate of possible loss | $</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 75<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LossContingenciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LossContingenciesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LossContingencyDamagesSoughtValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The value (monetary amount) of the award the plaintiff seeks in the legal matter.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14557-108349<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14435-108349<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14326-108349<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LossContingencyDamagesSoughtValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LossContingencyEstimateOfPossibleLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14435-108349<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14557-108349<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 460<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=121555522&amp;loc=d3e12021-110248<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LossContingencyEstimateOfPossibleLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LossContingencyNewClaimsFiledNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total number of new claims filed pertaining to a loss contingency during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14435-108349<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LossContingencyNewClaimsFiledNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_LitigationCaseAxis=chgg_A2018DataIncidentArbitrationDemandsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_LitigationCaseAxis=chgg_A2018DataIncidentArbitrationDemandsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_LitigationCaseAxis=chgg_VitalSourceTechnologiesLLCVSTVsCheggMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_LitigationCaseAxis=chgg_VitalSourceTechnologiesLLCVSTVsCheggMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>55
<FILENAME>R44.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651418012728">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Equity Offering (Details) - Public Offering<br> $ / shares in Units, $ in Millions</strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
</tr>
<tr><th class="th">
<div>Feb. 28, 2021 </div>
<div>USD ($) </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction', window );">Number of shares issued and sold (in shares) | shares</a></td>
<td class="nump">10,974,600<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SaleOfStockPricePerShare', window );">Offering price per share (in dollars per share | $ / shares</a></td>
<td class="nump">$ 102.00<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SaleOfStockConsiderationReceivedOnTransaction', window );">Proceeds from the Offering</a></td>
<td class="nump">$ 1,091.5<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_SaleOfStockUnderwritingDiscountsAndCommissions', window );">Underwriting discounts and commissions</a></td>
<td class="nump">26.9<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_SaleOfStockOfferingExpenses', window );">Offering expenses</a></td>
<td class="nump">$ 1.1<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_SaleOfStockOfferingExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sale Of Stock, Offering Expenses</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_SaleOfStockOfferingExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_SaleOfStockUnderwritingDiscountsAndCommissions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sale Of Stock, Underwriting Discounts And Commissions</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_SaleOfStockUnderwritingDiscountsAndCommissions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SaleOfStockConsiderationReceivedOnTransaction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cash received on stock transaction after deduction of issuance costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SaleOfStockConsiderationReceivedOnTransaction</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SaleOfStockPricePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SaleOfStockPricePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=chgg_PublicOfferingMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=chgg_PublicOfferingMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>56
<FILENAME>R45.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421775816">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Securities Repurchase Program (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
<th class="th"><div>Jun. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockRepurchaseProgramAuthorizedAmount1', window );">Stock repurchase program, authorized amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 500,000,000.0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="nump">$ 189,849,000<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1', window );">Remaining under repurchase program</a></td>
<td class="nump">165,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member', window );">0.25% Convertible Senior Notes Due 2023 | Senior Notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Repayments of convertible senior notes</a></td>
<td class="nump">$ 4,700,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockRepurchaseProgramAuthorizedAmount1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stock repurchase plan authorized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockRepurchaseProgramAuthorizedAmount1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount remaining of a stock repurchase plan authorized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=chgg_A0.25PercentConvertibleSeniorNotesDue2023Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>57
<FILENAME>R46.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422107352">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Share-based Compensation Expense (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems', window );"><strong>Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Share-based compensation expense</a></td>
<td class="nump">$ 23,100<span></span>
</td>
<td class="nump">$ 18,334<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount', window );">Share-based compensation expense capitalized</a></td>
<td class="nump">500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember', window );">Cost of revenues</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems', window );"><strong>Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Share-based compensation expense</a></td>
<td class="nump">362<span></span>
</td>
<td class="nump">169<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember', window );">Research and development</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems', window );"><strong>Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Share-based compensation expense</a></td>
<td class="nump">7,959<span></span>
</td>
<td class="nump">6,991<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_SellingAndMarketingExpenseMember', window );">Sales and marketing</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems', window );"><strong>Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Share-based compensation expense</a></td>
<td class="nump">2,919<span></span>
</td>
<td class="nump">2,186<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember', window );">General and administrative</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems', window );"><strong>Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Share-based compensation expense</a></td>
<td class="nump">$ 11,860<span></span>
</td>
<td class="nump">$ 8,988<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=115993241&amp;loc=d3e301413-122809<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cost capitalized for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_ResearchAndDevelopmentExpenseMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_SellingAndMarketingExpenseMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_SellingAndMarketingExpenseMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>58
<FILENAME>R47.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419950952">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - 2021 PSU Grants with Market-Based Conditions (Details) - PSUs with Market Based Conditions - $ / shares<br></strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward', window );">Target level of award</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue', window );">Consecutive trading days achieving maximum average market value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">60 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod', window );">Performance period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Grants in period (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">732,260<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Grant date fair value (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 68.55<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio', window );">Conversion ratio</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected term</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember', window );">Minimum</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue', window );">Stock issued as percent of target level of achieving maximum average market value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember', window );">Maximum</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue', window );">Stock issued as percent of target level of achieving maximum average market value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">150.00%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember', window );">Forecast</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Vesting percentage</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember', window );">Threshold Level</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold', window );">Market value per share price minimum threshold (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 123.81<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels', window );">Stock issued based on achieving target levels (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">244,086<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember', window );">Target Level</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold', window );">Market value per share price minimum threshold (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 148.58<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels', window );">Stock issued based on achieving target levels (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">488,173<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember', window );">Maximum Level</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold', window );">Market value per share price minimum threshold (in dollars per share)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 173.34<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels', window );">Stock issued based on achieving target levels (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">732,260<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Consecutive Trading Days Achieving Maximum Average Market Value</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Conversion Ratio</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:pureItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Market Value Per Share Price Minimum Threshold</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Performance Period</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Stock Issued Based On Achieving Target Levels</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value, Target Level Of Award</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of vesting of award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.D.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=115993241&amp;loc=d3e301413-122809<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementScenarioAxis=srt_ScenarioForecastMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementScenarioAxis=srt_ScenarioForecastMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>59
<FILENAME>R48.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651426192248">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Summary of Assumptions (Details) - PSUs with Market Based Conditions<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected term</a></td>
<td class="text">3 years<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Expected volatility</a></td>
<td class="nump">49.04%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate', window );">Dividend yield</a></td>
<td class="nump">0.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate', window );">Risk-free interest rate</a></td>
<td class="nump">0.27%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iv)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.D.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=115993241&amp;loc=d3e301413-122809<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=chgg_PerformanceSharesMarketBasedConditionsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>60
<FILENAME>R49.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651507591544">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - 2021 PSU Grants with Financial and Strategic Performance Targets (Details)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2021 </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember', window );">PSUs with Financial and Strategic Performance Targets</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">3 years<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Grants in period (in shares) | shares</a></td>
<td class="nump">278,644<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 99.05<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio', window );">Conversion ratio</a></td>
<td class="nump">1<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">Restricted Stock Units (RSUs) | Minimum</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">3 years<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember', window );">Restricted Stock Units (RSUs) | Maximum</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Vesting period</a></td>
<td class="text">4 years<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share Based Arrangement By Share Based Payment Award, Conversion Ratio</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:pureItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>61
<FILENAME>R50.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651422406568">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details) - PSUs and RSUs<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2021 </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward', window );"><strong>Shares Outstanding</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber', window );">Number of RSUs and PSUs Outstanding, Beginning (shares) | shares</a></td>
<td class="nump">4,816,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Number of RSUs and PSUs, Granted (shares) | shares</a></td>
<td class="nump">1,885,015<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod', window );">Number of RSUs and PSUs, Released (shares) | shares</a></td>
<td class="num">(1,426,075)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod', window );">Number of RSUs and PSUs, Canceled (shares) | shares</a></td>
<td class="num">(173,936)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber', window );">Number of RSUs and PSUs Outstanding, Ending (shares) | shares</a></td>
<td class="nump">5,101,004<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward', window );"><strong>Weighted Average Grant&#160;Date Fair Value</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue', window );">Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 37.82<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares</a></td>
<td class="nump">87.14<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue', window );">Weighted Average Grant Date Fair Value, Released (in dollars per share) | $ / shares</a></td>
<td class="nump">29.29<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue', window );">Weighted Average Grant Date Fair Value, Canceled (in dollars per share) | $ / shares</a></td>
<td class="nump">38.79<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue', window );">Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 58.39<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>62
<FILENAME>R51.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419555752">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stockholders' Equity - Additional Information (Details) - PSUs and RSUs<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2021 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions', window );">Unrecognized compensation costs related to restricted stock units</a></td>
<td class="nump">$ 206.4<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Weighted average vesting period for recognition of compensation expense</a></td>
<td class="text">2 years 3 months 18 days<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>63
<FILENAME>R52.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651421020152">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Related-Party Transactions (Details)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th">
<div>Mar. 31, 2021 </div>
<div>USD ($) </div>
<div>board_member</div>
</th>
<th class="th">
<div>Mar. 31, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CounterpartyNameAxis=chgg_AdobeSystemsMember', window );">Adobe Systems | Chief Executive Officer</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty', window );">Purchases from related party</a></td>
<td class="nump">$ 600,000<span></span>
</td>
<td class="nump">$ 400,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromRelatedParties', window );">Revenue from related parties</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">100,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DueToOfficersOrStockholdersCurrent', window );">Due to related parties</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 100,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionDueFromToRelatedParty', window );">Receivables from related party</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CounterpartyNameAxis=chgg_ZuoraIncMember', window );">Zuora, Inc. | Board Of Directors Member</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty', window );">Purchases from related party</a></td>
<td class="nump">$ 400,000<span></span>
</td>
<td class="nump">200,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty', window );">Number of board members appointed to Board of Directors of related party | board_member</a></td>
<td class="nump">1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CounterpartyNameAxis=chgg_PayPalHoldingsInc.Member', window );">PayPal Holdings, Inc. | Immediate Family Member of Management or Principal Owner | Payment Processing Fees</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty', window );">Number of board members appointed to board of directors of related party | board_member</a></td>
<td class="nump">1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty', window );">Expenses from transactions with related party</a></td>
<td class="nump">$ 700,000<span></span>
</td>
<td class="nump">$ 500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Related Party Transactions, Number of Board Members Appointed to Board of Directors of Related Party</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Related Party Transactions, Number of Board Members Appointed to Chief Executive Officer of Related Party</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>chgg_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DueToOfficersOrStockholdersCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amounts due to recorded owners or owners with a beneficial interest of more than 10 percent of the voting interests or officers of the company. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-04(12))<br> -URI http://asc.fasb.org/extlink&amp;oid=120401414&amp;loc=d3e603758-122996<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39549-107864<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(17))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(k)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DueToOfficersOrStockholdersCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionDueFromToRelatedParty">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(k)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39549-107864<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionDueFromToRelatedParty</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6457730&amp;loc=d3e39549-107864<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromRelatedParties">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07.1(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=120401555&amp;loc=SL114874292-224272<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1(e))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395209&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromRelatedParties</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_CounterpartyNameAxis=chgg_AdobeSystemsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_CounterpartyNameAxis=chgg_AdobeSystemsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ChiefExecutiveOfficerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ChiefExecutiveOfficerMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_CounterpartyNameAxis=chgg_ZuoraIncMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_CounterpartyNameAxis=chgg_ZuoraIncMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=chgg_BoardOfDirectorsMemberMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=chgg_BoardOfDirectorsMemberMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_CounterpartyNameAxis=chgg_PayPalHoldingsInc.Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_CounterpartyNameAxis=chgg_PayPalHoldingsInc.Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionAxis=chgg_PaymentProcessingFeesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionAxis=chgg_PaymentProcessingFeesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>64
<FILENAME>R9999.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm139651419584360">
<tr>
<th class="tl" colspan="1">Label</th>
<th class="tl"><strong>Element</strong></th>
<th class="th" colspan="1">Value</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent', window );">Restricted Cash and Cash Equivalents, Noncurrent</a></td>
<td class="th" style="border-bottom: 0px;">us-gaap_RestrictedCashAndCashEquivalentsNoncurrent</td>
<td class="nump">$ 1,730,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent', window );">Restricted Cash and Cash Equivalents, Noncurrent</a></td>
<td class="th" style="border-bottom: 0px;">us-gaap_RestrictedCashAndCashEquivalentsNoncurrent</td>
<td class="nump">1,561,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue', window );">Restricted Cash and Cash Equivalents, Current</a></td>
<td class="th" style="border-bottom: 0px;">us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue</td>
<td class="nump">306,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue', window );">Restricted Cash and Cash Equivalents, Current</a></td>
<td class="th" style="border-bottom: 0px;">us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue</td>
<td class="nump">$ 38,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121566466&amp;loc=d3e6812-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=121583591&amp;loc=SL98516268-108586<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=121586364&amp;loc=d3e3044-108585<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 954<br> -SubTopic 210<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120413173&amp;loc=SL116631458-115580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>65
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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M=]W3CHG&K=!X#;[Q3X?#KHG&J]!TZVDF)_VN:Z3I%FA"1N/K>A(5M>5 TR
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M!Z.:60F]A%9JGZJ'-#ZH'C(*!?&Y'C[E>G@*-Y;&O%"N@GL!_]':-\*K^(+
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MU4#E/]O4#6CV#30<D05>,9FV-J/D3@H\W/[O#;#"Q([A[8N_ 5!+ P04
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M$J$-8'_&N7J?Z.ZD[$;[?P%02P,$%     @ &X&C4NJNA).I!   5Q   !@
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M"D<H9BNZ2]4K/_S.*H<\;6_)4UG\18=*UAZAY4XJGE7*0) E>?E+/ZI G"B
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M-]W'-6=P1E,&\/=5#<MI^*(>,+[C=_%_4$L#!!0    ( !N!HU((>[[R<!$
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MP#65$-1;VWI\OZX)_%2AWTKV-&(7DE@2"/1@W>[V3,C+R+JDHY3N@"S\Z&T
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M/:-<()WZU<]3O]X>,K+/P&'#:[1C%34:F,(L/ )O'%!7%,6^'/>_P?O@7E2
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M)^M,5=!]=ASZ-^AT!@:?&4Y-;( +2B?,.2CT6*<I^_UT17S<WTY/.V,A)R6
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MI:Q5%?TL! <DD "^KQ68X!8HH'\0O?XO4$L#!!0    ( !N!HU)*#X9<*P,
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MDX&?!NRTB6Y(0ZUQD49D6G;T34+/#G2^=RZ>-AQ@_LIMOP%02P,$%     @
M&X&C4C]"R9+_$   [3D  !D   !X;"]W;W)K<VAE971S+W-H965T,30N>&UL
MS5MMD]NV$?XKF*O2WLW0.KZ($N6WF;.=3)UI'$]L-Q\Z_0"1D(2:(F6 O//U
MUW=W 9*@2.ET29SI3.*C2!#8??9] 3Z_*]5GO16B8E]W>:%?7&RK:O_T^EJG
M6['C>EKN10%/UJ7:\0I^JLVUWBO!,WIIEU^'OC^_WG%97+Q\3O?>JY?/R[K*
M92'>*Z;KW8ZK^U<B+^]>7 07S8U?Y&9;X8WKE\_W?",^B.K3_KV"7]?M+)G<
MB4++LF!*K%]<W 1/7\UP/ WXIQ1WVKEFR,FJ+#_CC[?9BPL?"1*Y2"N<@<.?
M6_%:Y#E.!&1\L7->M$OBB^YU,_L/Q#OPLN):O"[S7V56;5]<)!<L$VM>Y]4O
MY=W?A>4GQOG2,M?T+[LS8\/%!4MK794[^S)0L).%^<N_6AR<%Q+_R NA?2$D
MNLU"1.4;7O&7SU5YQQ2.AMGP@EBEMX$X6:!0/E0*GDIXKWKYNBQNA:KD*A?L
M@RADJ=B[LA+Z^74%L^.8Z]3.],K,%!Z9*6(_E46UU>S[(A-9__UKH*HE+6Q(
M>Q6>G/ GKJ8L"CP6^F%P8KZH936B^:(C\[T1JXJ]D3K-2UTKP?YUL]*5 K7X
M]XG)9^WD,YI\]@?@^-MF8C=9N2=-+M?LYL,GA,5_XL\]=I.F95U4LM@PL%+F
M3O"V !9K,*)*,UYD^(Q8UDR"110@JTI6]W_3[.<[^/&EAA_L5\$X+B4R=QD&
M"__(BQHLEUF9L!HDK5BU%6Q79G(MX0TE*E7JO2!C8SM1;<N,\?T^QX=5R5*'
M.&VX*X@[<!BZ A*1"ZZ1Q\/5D/XMAUGA!99N>;&!*<$3W<JRUOD]RXQHX2;?
M(1XPB8+GY:W,\%Z6242/Y\U T %-@*7E;L\5)XKW0LDRTU/VB7CKX>S2+AU@
M[V2U96*W$ADN9$:1TUH+7N$J'F#$*\:5H5T) %H9/%8 MA$?_$9B@'<.;D7)
M6T-0J<S+66G?U>!O2'K@2%<(626!)\!A)^N=9Q=A>0GPJ,.EM"!&<2E5[DAR
MVU)72#.I!=Y18G7/1"[!V7#2*1R5<KT=X0SE+O(IJ1E$!.13:-$#*D.KZZ.5
MYT?8UK <O))+OI(YJN).<!032*]"H<*4_R6$@>1.]X#R5K2#E7EG&RVM[*;>
M@&<EP7KL#H2I=0WS3H*ISV#E'#E$A#<;)38 %Z KBU3N80&C6JB>_G?'E3FK
M44-P@3F[I'_I_M64?02"3\^++'6OP#1I7F=P,0E\'R* H:X5GRRDD7^MP"0T
MB(>MZQRL07P5*I7:"E J9IT'*$(SUK4)6HS  ;>;;H&"8-G#9N&L_C VTR",
MS\(G)GQBBP_9.#RX@4ES2\,Y7**"'V.RAQO0YC#=K6QTL.6I*BNRJ2%GDZ2;
MS>A20VK2@RN:Q8^!ZTRT(D(KLO<1K*K<"#1:XX0.=(<&F%N63P/GHY4Q&BBC
MP]ZWTL6/#:6 JVJ1!2#VY!R!X)RGPC@5F.E+S7,3@]#;R*JVLZWJ>Z0$%M(U
M.$L<^DL-$ >SV4W#X@>1U@J6QRB;$N/!,HH\\DJP +AU0X[1BP)R98@KJ1"9
M[KBWD .E'-4IAW17LTL@%T)@K4$4^NJI$8X)YR24]C*RE^\/A3"!^.?[/OX/
MUTE[!0I&5_\06H\@_]>_)&&P>$:QCN:Y#&C\%5PDWG*9P$7BS</XRLQ0DA(A
MQKQ(!;E8H'[ISW!<&,*_BWAQQ=ZYK$_8,IEY_G(.5XO$]X*$"(MB;QXD[ T@
M:J-'M54"8P6EAP2G]3)-=N>A6$'_"YNKDS*7-10/G6"4:'4%*-@HOB.#$U_1
MN=<24N",;'W:6?M9NAVWNMTH5G[_I!";$A#%Z 3AI="<Z#IT$T"QAN0"4P?C
M6R9!,ILNF_6!OJT$+N] (?9<DNYB((7D8@_CP2I24E+B ^8BV\I,N#\@[E1V
MX81[R+?H32=_ /'O$:54&)L#131Z;5,)KU$>L%,ETE)1LN3.T(5CXG QG\8=
MATKD!J62%EYSL.Y;GH/'@L$]V73<3#'%U**J<N.WQQ=[%-26&50X2HTFR736
M/H-<3V/Z:G)&'-"1:>PZY4K=4^9Y3#L@U_J/2*N&SXXS]#\DX<DRF49'Z5DD
MTW! D."*O&-O+E@;,Y<IY/N-1\SO/0@"CS$G- S(K11Y0Z#9X22%;!P5":8]
M0^&-!L-,E [2>]WKO9&4D.6$8N MHZ47SWVFMQPU%'A":X9$&ZAF4-2FGRDX
M@<()D'KF"AHSS=;%H*##J)/SN:9SE,K?92MG&4@83N>.&IPP#P?5(_)Q21]8
MS5$>'[(<%]"!H@:.$F\XW#MI.%W0,]X:LQ8/5('\-A!7KG*YX88L%#B.W)3@
MP0IX"'6&!*4IJ)+@0*\-YG ?QZY$=2=$P6KSZJ\BSS7[@:M-R5[QXK/'WG$;
MXF^T+E/)C4* O#XJ2._!1"Y-5F*7:#(>)T%:@06B2DBR%2@)<"$J4':FO@'F
M/X RH/M5MA"=(W\YQLPN(F7H"#.D/V-44%(F9[(5K$!41E&UR=$ 0Y2]1OO#
M^JX$]P)6EH&X6A)CE\26OBZWAD*5W>,S8Z$20\P]-[GC3C[A!13/Z-.1 J5@
M('D<XR>"F!AU.(O)77-XAG-ZL.I&%@5J11^!V*.L?$#E 6;-,@18_.< %AT'
M[/?@==^@]0[4]@RPG&&$53)]9":$KAM[EHA,[:;*!C":!HI],$U:T6F;C"4Y
M'3!>4PXH 0Y"'*;VV *012ULI\ M1K!^S@T4B:&2?!%B3!6(]4HC,UJANKDW
M\M3V9&U<&/!(TG6F MC*>K,%_P0A9$6-"?,V10ODJPDT1F18UQLZ;]Q,!Z"E
M!E*:<ZU-K=!'$S/[D5S K;EP/O!M"D-UZ_@/@_5(^(U.A5]V+/PZ0?6WRGW*
MOD=5G5 9<4['@6RY2PH/E('X64[#Y2(Y$=W1*L'$X#]L0$' $$;ZO&AK%2>3
M!:)2BHB C2J_RIT!!;+YQ32.R71I*:\S7B<?X]E_P-U3[H0)-A"*82N5*JUW
MB%'Z" SB\S$ +Q@MX_DW!R$.IK#*GXA!=#X&T6(:^''PS3$(Y]/E'Z,'[YL
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M;ASH-71M6!+P6+_$5&MT0:=L<!WUN:#4)X;;WO"L/[KL:3H)YY';+:0+ 2X
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M"!WQ_JYGA+&X[KF..E1C,*(P!H>Q%N"Y52ND%T*S%QS %XDAI$TO3_I*YB#
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M6\MO=!MW=A;9/?T^>[DXA&,3%.A#<G?SD5W-HNEXW*[_GF9B#J0-FHF'2O_
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M!@O?3Y;.$TL_#O@9=W[&T<_XOR3UJ5CG#<%I);&$M]>8-Z&[X;PL98X$TH$
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M3UE:@.?T$F'[A1BDE[=?_A=02P,$%     @ &X&C4O^;3OU- P  ]P8  !D
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M9T+M#M!^J2C"?N(<#/^ZY2]02P,$%     @ &X&C4LVA I9P P  UP<  !D
M  !X;"]W;W)K<VAE971S+W-H965T,C$N>&ULC57;;N,V$/V5@; +;  BNMFR
M'-@&'*=%^Q @2-+M0]$'6AI+Q$JDEJ3B[-]W2,E*LDV,?9%XF3ES9LZ07!V5
M_F9J1 O/;2/-.JBM[:["T!0UMMQ<J@XE[1R4;KFEJ:Y"TVGDI7=JFS")HBQL
MN9#!9N77[O1FI7K;"(EW&DS?MES_N,9&'==!')P6[D556[<0;E8=K_ ![5_=
MG:99.*&4HD5IA)*@\; .MO'5]=S9>X.O H_FU1A<)GNEOKG)G^4ZB!PA;+"P
M#H'3[PEWV#0.B&A\'S&#*:1S?#T^H?_N<Z=<]MS@3C5_B]+6ZR /H,0#[QM[
MKXY_X)B/)UBHQO@O' ?;V2* HC=6M:,S,6B%'/[\>:S#*X<\^L A&1T2SWL(
MY%G><,LW*ZV.H)TUH;F!3]5[$SDAG2@/5M.N(#^[N<<GE#T:^/+(]PV:BU5H
M"=9MAL4(<3U )!] I'"KI*T-_"9++-_ZAT1GXI2<.%TG9P%ON;Z$-&:01$E\
M!B^=<DP]7GH^1SAHU<*.N&KJ!:JSK6'G*XP:_MGNC5__]TS V11PY@/./@AX
M(PRO*HT5]YVG#C!2>*^X9Z'<F;PR'2]P'="A,ZB?,-@\UI2,:NA "5F!=<*!
M06MH45-2JM=@E>4-2#K5^J0P;8(ESPZU4*4!4ZNCA/*%*Y;>QKGO:JPJ>*!P
MHB!7+DM*X7LO--G<DJ46O#'0:57V5$I'FCI(2,)7O2%KPP"?"^RLBU:@M'3
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MH](O2_HV0>T,Z/U:49&Z!Q>@_]J9_P]02P,$%     @ &X&C4C"OI _+!
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M2S77?S,Q<NVNW+DT=(&[84$O)E16@/874IK#Q#IHWV"3_P%02P,$%     @
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MH]Z(\JNKD5TMK-KYJ?>D+,U0_YG3*X?:.=#^1BE[6+@#FG=S^A=02P,$%
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M6@3VJ.(NJOC<J-Z+RLJ,V)ASC'IAF2:.L&"@J1D,J(C6V4AEU O,8N?+)3R
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MK0 2LZ.0F &)&4[BKF!C;<QT/62^,4 FP_FVM[.-OIJSN3_P/(LEP$>&\_$
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M7 C7F+&?2;X&5QDM<@'>S8G 2<K?R_<'\*?'.7CWV_N)):1;RK@55RY\W+N
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MVG"X[_T/W."$@6\X+<@%N">8%XRH.N47<C'DC,0%D_6U-E5J(Q;P+&H!&[F
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M _-])\P\5XLB0'W)6WT'4$L#!!0    ( !N!HU(R)9+T(P0  /X2   9
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M&%35E:N)D2O?"1?2V+[JAX5]R%"Y W8_E]+L)LY _32._P)02P,$%     @
M&X&C4N\^$.D& P  D0@  !D   !X;"]W;W)K<VAE971S+W-H965T-#4N>&UL
MS5;?3]LP$/Y73M&F,0E(FC;]@=I*T#*-:4P5%=O#M <WN386B5ULA\*T/WYG
M)X0":;>72>M#8SOW???=^>S+<"/5C4X1#=SGF= C+S5F?>+[.DXQ9_I8KE'0
MFZ54.3,T52M?KQ6RQ('RS ^#H.OGC MO/'1K,S4>RL)D7.!,@2[RG*F',\SD
M9N2UO,>%*[Y*C5WPQ\,U6^$<S?5ZIFCFURP)SU%H+@4H7(Z\T];)=&#MG<%7
MCAN]-08;R4+*&SNY2$9>8 5AAK&Q#(P>=SC!++-$)..VXO1JEQ:X/7YD_^!B
MIU@63.-$9M]X8M*1U_<@P24K,G,E-Q^QBB>R?+',M/N'36G;&W@0%]K(O *3
M@IR+\LGNJSQL 8BG&1!6@/ EH+,#T*X [9> [@Y IP)T7&;*4%P>ILRP\5#)
M#2AK36QVX)+IT!0^%W;;YT;16TXX,YX;&=^D,DM0Z7=P?EMP\P!',,>X4-QP
MU'"%ZT+%*>469DJN%,OA8(J&\4R_)\OK^10.WKP?^H;46$X_KCR?E9[#'9[;
M<"F%236<BP23YWB?HJA#"1]#.0OW$EXR=0SMUB&$0=AJT#/Y>WC0 )_NAW\J
M!,&#)OBS:-KUQK0=7WO7QJ1,X9$MZ00F,J=CKID[*:=*,;%".GH&%@^P;3=C
M#V[Y=,-4 M\_$R5<&,SUCSV".K6@CA/4V5<I=-+K:EB7U7 (K#"I5/PG*6"Y
M+(1IREY)WG7D]BZZ&T=!]1OZ=PVZHEI7M%<7U6<9M@:YA%B*.U2&+S($C8)+
M!4(:U$WU&;V2U.H/^IW!MJ2R<EY;[A#=K45W_R#:7LE<K*"@ZE<-:6T27')&
MVX*[4;0GA[U:3F^OG. XC-Y2F3WE;E[F[HO-'4P+M&7=AE_/UO<45;]VW/\_
MJGQ0"QK\HVH:O*J13J]I:_RMRSI'M7)-3Y,K.CCE95>OUGWUU+63%^MGK9-)
MV1Z?:,IF35?9B@L-&2Z),CCN4<FHL@&6$R/7KB4LI*$&XX8I?3.@L@;T?BDI
MRFIB'=1?(>/?4$L#!!0    ( !N!HU(1F3;+9P,  +,,   9    >&PO=V]R
M:W-H965T<R]S:&5E=#0V+GAM;,U746_;-A#^*X10H"VP1J)DRU)A&XB=="NP
MHD&\;@]%'QCI;!&A2)6D[62_?B2ER(HM"P.:A[Q()'7W\;O[B.-INA?R7A4
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MUAUR/=&B<DWFG="F977#POQ5@+0&YOM:"/TTL1NT_RGS_P!02P,$%     @
M&X&C4HU;Q\&2!   $14  !D   !X;"]W;W)K<VAE971S+W-H965T-#<N>&UL
MS5AM;]LV$/XKA+%A+;!8(ND7I7 ,)&G6%6@ HVF[#\,^,!)M$9%$EZ3M^-_O
M2"FBN\A4-K2#O]BBS'ONX=WQ.9JSG50/.N?<H,>RJ/3%(#=F_2:*=)KSDNFA
M7/,*?EE*53(#0[6*]%IQECFCLHA('$^BDHEJ,)^Y=PLUG\F-*43%%PKI35DR
MM;_BA=Q=#/#@Z<5'L<J-?1'-9VNVXG?<?%XO%(RB%B43):^TD!52?'DQN,1O
MKBFQ!F[&%\%W^N 9V:7<2_E@!^^SBT%L&?&"I\9",/C:\FM>%!8)>'QM0 >M
M3VMX^/R$_IM;/"SFGFE^+8L_1&;RBT$R0!E?LDUA/LK=[[Q9T-CBI;+0[A/M
MFKGQ *4;;639& .#4E3U-WML G%@ #C=!J0Q("\UH(T!=0NMF;EEO66&S6=*
M[I"RLP'-/KC8.&M8C:AL&N^,@E\%V)GYG9'I0RZ+C"O]"[KYNA%FC\X0B0E&
MB[O/Z)UBE=% RN3HEJD';LZN(&H9NI95)FPF-'KUEALF"OT:#,'FF]GHV>PS
M]!.*D,Z9XGH6&5B#91*E#=^KFB\YPA>C6UF97*.;*N-9A_UUV)X&[".(71M
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MMEQ67." AF7 #^$W[ I]2;"$[7A8U]$6P^2DUVVW^^%B!YV3FL[)ZW0@HVR
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M>_*<;N8T(1]X$K)L*>L+=9^F$#*D1^YHRI)-=9TT[0>:X>R$4Y(B7)"Y8%G
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MRA! 8U1A!RFGN9*TUK#R: :6=LJ$>(#G]4>VQ;W(-FK6@8K)=F@%-4-'XR;
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M@:<11S %H %#HJA^#^Z\C\+5>RI<_Z=O]!M02P,$%     @ &X&C4I>*NQS
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M]?&7Y??)T:MRP3G ;_O'+U!+ P04    "  ;@:-2*F32ILH!  ";'P  $P
M %M#;VYT96YT7U1Y<&5S72YX;6S-V<ENPC 4!=!?0=E6Q'@('01LVFY;%OT!
M-WE 1!);MJ'P]W7"(+6BJ(A*O9M$B>UW7VSI;#)ZVUKRO4U=-7Z<+$*P#XSY
M?$&U]JFQU,21F7&U#O'1S9G5^5+/B8G!8,ARTP1J0C^T-9+)Z(EF>E6%WO,F
MOO:E:<:)H\HGO<?=Q#9KG&AKJS+7(8ZS=5-\2^GO$]*XLIOC%Z7U-W%"PDXF
MM",_!^S7O:[)N;*@WE2[\*+K.(MM*N;#MB*?GB]QHD<SFY4Y%29?U7%)ZJTC
M7?@%4:BK=%?TYGQRB#M,NRN_.K\K<RXPSIPZ8WT\,4>7QQV.I%W=M[$0N5">
M_\1C8BQ]]?=1>]H%%;_,CMO[8=RR.P_/NMOU>_SUC(_U+^Q#@/0A0?I0('UD
M('T,0?JX!>GC#J2/>Y ^^ "E$111.0JI',54CH(J1U&5H[#*45SE*+!R%%D%
MBJP"15:!(JM D56@R"I09!4HL@H4606*K )%5HDBJT215:+(*E%DE2BR2A19
M)8JL$D56B2*K1)%5H<BJ4&15*+(J%%D5BJP*15:%(JM"D56AR*I09,U09,U0
M9,U09,W^4]9W8Y9__;NXO:>U+IM#/NO^R4\^ 5!+ 0(4 Q0    ( !N!HU('
M04UB@0   +$    0              "  0    !D;V-0<F]P<R]A<' N>&UL
M4$L! A0#%     @ &X&C4M&PM*[O    *P(  !$              ( !KP
M &1O8U!R;W!S+V-O<F4N>&UL4$L! A0#%     @ &X&C4IE<G",0!@  G"<
M !,              ( !S0$  'AL+W1H96UE+W1H96UE,2YX;6Q02P$"% ,4
M    "  ;@:-2W'PC/3,%  !<%0  &               @($."   >&PO=V]R
M:W-H965T<R]S:&5E=#$N>&UL4$L! A0#%     @ &X&C4@$MY(_C!@  T!L
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M965T-BYX;6Q02P$"% ,4    "  ;@:-2FJ&19T<)  #O)P  &
M    @(&F)P  >&PO=V]R:W-H965T<R]S:&5E=#<N>&UL4$L! A0#%     @
M&X&C4@A[OO)P$0  \C,  !@              ("!(S$  'AL+W=O<FMS:&5E
M=',O<VAE970X+GAM;%!+ 0(4 Q0    ( !N!HU*]4(:N& 4  '0,   8
M          " @<E"  !X;"]W;W)K<VAE971S+W-H965T.2YX;6Q02P$"% ,4
M    "  ;@:-2J!8"U- $  "-"P  &0              @($72   >&PO=V]R
M:W-H965T<R]S:&5E=#$P+GAM;%!+ 0(4 Q0    ( !N!HU++TV%'>0@  -X5
M   9              " @1Y-  !X;"]W;W)K<VAE971S+W-H965T,3$N>&UL
M4$L! A0#%     @ &X&C4EUQNX3Q!P  '!4  !D              ("!SE4
M 'AL+W=O<FMS:&5E=',O<VAE970Q,BYX;6Q02P$"% ,4    "  ;@:-22@^&
M7"L#  #Q!@  &0              @('V70  >&PO=V]R:W-H965T<R]S:&5E
M=#$S+GAM;%!+ 0(4 Q0    ( !N!HU(_0LF2_Q   .TY   9
M  " @5AA  !X;"]W;W)K<VAE971S+W-H965T,30N>&UL4$L! A0#%     @
M&X&C4KW%;$[N"   0Q8  !D              ("!CG(  'AL+W=O<FMS:&5E
M=',O<VAE970Q-2YX;6Q02P$"% ,4    "  ;@:-23/&)08,#   C"   &0
M            @(&S>P  >&PO=V]R:W-H965T<R]S:&5E=#$V+GAM;%!+ 0(4
M Q0    ( !N!HU+_@QQ"$@L  +H=   9              " @6U_  !X;"]W
M;W)K<VAE971S+W-H965T,3<N>&UL4$L! A0#%     @ &X&C4EANJ.(T P
MMP@  !D              ("!MHH  'AL+W=O<FMS:&5E=',O<VAE970Q."YX
M;6Q02P$"% ,4    "  ;@:-2AWV)+-\.  #(+0  &0              @($A
MC@  >&PO=V]R:W-H965T<R]S:&5E=#$Y+GAM;%!+ 0(4 Q0    ( !N!HU+_
MFT[]30,  /<&   9              " @3>=  !X;"]W;W)K<VAE971S+W-H
M965T,C N>&UL4$L! A0#%     @ &X&C4LVA I9P P  UP<  !D
M     ("!NZ   'AL+W=O<FMS:&5E=',O<VAE970R,2YX;6Q02P$"% ,4
M"  ;@:-2DE5\<>0#  #Y"   &0              @(%BI   >&PO=V]R:W-H
M965T<R]S:&5E=#(R+GAM;%!+ 0(4 Q0    ( !N!HU(PKZ0/RP0  )8,   9
M              " @7VH  !X;"]W;W)K<VAE971S+W-H965T,C,N>&UL4$L!
M A0#%     @ &X&C4MDTXTKI!   &0P  !D              ("!?ZT  'AL
M+W=O<FMS:&5E=',O<VAE970R-"YX;6Q02P$"% ,4    "  ;@:-2%P"N;?4$
M  !W#   &0              @(&?L@  >&PO=V]R:W-H965T<R]S:&5E=#(U
M+GAM;%!+ 0(4 Q0    ( !N!HU(KCA88-P0  (\)   9              "
M@<NW  !X;"]W;W)K<VAE971S+W-H965T,C8N>&UL4$L! A0#%     @ &X&C
M4A]=L]R !   P14  !D              ("!.;P  'AL+W=O<FMS:&5E=',O
M<VAE970R-RYX;6Q02P$"% ,4    "  ;@:-2^3P$D#\#  #%"   &0
M        @('PP   >&PO=V]R:W-H965T<R]S:&5E=#(X+GAM;%!+ 0(4 Q0
M   ( !N!HU+VP1@>G ,  & .   9              " @6;$  !X;"]W;W)K
M<VAE971S+W-H965T,CDN>&UL4$L! A0#%     @ &X&C4IVV=.*"!   3Q,
M !D              ("!.<@  'AL+W=O<FMS:&5E=',O<VAE970S,"YX;6Q0
M2P$"% ,4    "  ;@:-2CA3'6L,"  !#!P  &0              @('RS
M>&PO=V]R:W-H965T<R]S:&5E=#,Q+GAM;%!+ 0(4 Q0    ( !N!HU+:<Q=/
M5@,  &(,   9              " @>S/  !X;"]W;W)K<VAE971S+W-H965T
M,S(N>&UL4$L! A0#%     @ &X&C4I72![)\!@  V24  !D
M ("!>=,  'AL+W=O<FMS:&5E=',O<VAE970S,RYX;6Q02P$"% ,4    "  ;
M@:-2!:E$Q/X"  #^"   &0              @($LV@  >&PO=V]R:W-H965T
M<R]S:&5E=#,T+GAM;%!+ 0(4 Q0    ( !N!HU+Z8I4O*@,  *<*   9
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M970S.2YX;6Q02P$"% ,4    "  ;@:-2ZW?"F$D$  #T%   &0
M    @('O^   >&PO=V]R:W-H965T<R]S:&5E=#0P+GAM;%!+ 0(4 Q0    (
M !N!HU)2N(-^E ,  / -   9              " @6_]  !X;"]W;W)K<VAE
M971S+W-H965T-#$N>&UL4$L! A0#%     @ &X&C4C(EDO0C!   _A(  !D
M             ("!.@$! 'AL+W=O<FMS:&5E=',O<VAE970T,BYX;6Q02P$"
M% ,4    "  ;@:-2P'YJ1!@#  "\"0  &0              @(&4!0$ >&PO
M=V]R:W-H965T<R]S:&5E=#0S+GAM;%!+ 0(4 Q0    ( !N!HU+I.B\F[0(
M "8'   9              " @>,( 0!X;"]W;W)K<VAE971S+W-H965T-#0N
M>&UL4$L! A0#%     @ &X&C4N\^$.D& P  D0@  !D              ("!
M!PP! 'AL+W=O<FMS:&5E=',O<VAE970T-2YX;6Q02P$"% ,4    "  ;@:-2
M$9DVRV<#  "S#   &0              @(%$#P$ >&PO=V]R:W-H965T<R]S
M:&5E=#0V+GAM;%!+ 0(4 Q0    ( !N!HU*-6\?!D@0  !$5   9
M      " @>(2 0!X;"]W;W)K<VAE971S+W-H965T-#<N>&UL4$L! A0#%
M  @ &X&C4H5W7MV. @  908  !D              ("!JQ<! 'AL+W=O<FMS
M:&5E=',O<VAE970T."YX;6Q02P$"% ,4    "  ;@:-2G=GA>R8#   *"@
M&0              @(%P&@$ >&PO=V]R:W-H965T<R]S:&5E=#0Y+GAM;%!+
M 0(4 Q0    ( !N!HU+134B37 ,  '4+   9              " @<T= 0!X
M;"]W;W)K<VAE971S+W-H965T-3 N>&UL4$L! A0#%     @ &X&C4MOM>[N<
M @  M04  !D              ("!8"$! 'AL+W=O<FMS:&5E=',O<VAE970U
M,2YX;6Q02P$"% ,4    "  ;@:-20B1;^+L#  "T#   &0
M@($S) $ >&PO=V]R:W-H965T<R]S:&5E=#4R+GAM;%!+ 0(4 Q0    ( !N!
MHU+[QA()+ (  "$'   9              " @24H 0!X;"]W;W)K<VAE971S
M+W-H965T-3,N>&UL4$L! A0#%     @ &X&C4K6M5Z,X P  ]A,   T
M         ( !B"H! 'AL+W-T>6QE<RYX;6Q02P$"% ,4    "  ;@:-2EXJ[
M',     3 @  "P              @ 'K+0$ 7W)E;',O+G)E;'-02P$"% ,4
M    "  ;@:-29Q]Y5&,$  " (P  #P              @ '4+@$ >&PO=V]R
M:V)O;VLN>&UL4$L! A0#%     @ &X&C4GQ^Z1O4 0  QA\  !H
M     ( !9#,! 'AL+U]R96QS+W=O<FMB;V]K+GAM;"YR96QS4$L! A0#%
M  @ &X&C4BIDTJ;* 0  FQ\  !,              ( !<#4! %M#;VYT96YT
A7U1Y<&5S72YX;6Q02P4&     #T /0"B$   :S<!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>66
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>67
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>68
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>200</ContextCount>
  <ElementCount>355</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>72</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>7</UnitCount>
  <MyReports>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001001 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1004005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1005006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1006007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>2101101 - Disclosure - Background and Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/BackgroundandBasisofPresentation</Role>
      <ShortName>Background and Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2107102 - Disclosure - Revenues</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/Revenues</Role>
      <ShortName>Revenues</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2110103 - Disclosure - Net Loss Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/NetLossPerShare</Role>
      <ShortName>Net Loss Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2114104 - Disclosure - Cash and Cash Equivalents, and Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CashandCashEquivalentsandInvestments</Role>
      <ShortName>Cash and Cash Equivalents, and Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2119105 - Disclosure - Fair Value Measurement</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/FairValueMeasurement</Role>
      <ShortName>Fair Value Measurement</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2123106 - Disclosure - Acquisitions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/Acquisitions</Role>
      <ShortName>Acquisitions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2125107 - Disclosure - Convertible Senior Notes</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/ConvertibleSeniorNotes</Role>
      <ShortName>Convertible Senior Notes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2131108 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2133109 - Disclosure - Guarantees and Indemnifications</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/GuaranteesandIndemnifications</Role>
      <ShortName>Guarantees and Indemnifications</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2134110 - Disclosure - Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquity</Role>
      <ShortName>Stockholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2144111 - Disclosure - Related-Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related-Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2203201 - Disclosure - Background and Basis of Presentation (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies</Role>
      <ShortName>Background and Basis of Presentation (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2302301 - Disclosure - Background and Basis of Presentation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/BackgroundandBasisofPresentationTables</Role>
      <ShortName>Background and Basis of Presentation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/BackgroundandBasisofPresentation</ParentRole>
      <Position>20</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2308302 - Disclosure - Revenues (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/RevenuesTables</Role>
      <ShortName>Revenues (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/Revenues</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2311303 - Disclosure - Net Loss Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/NetLossPerShareTables</Role>
      <ShortName>Net Loss Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/NetLossPerShare</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2315304 - Disclosure - Cash and Cash Equivalents, and Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables</Role>
      <ShortName>Cash and Cash Equivalents, and Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/CashandCashEquivalentsandInvestments</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2320305 - Disclosure - Fair Value Measurement (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/FairValueMeasurementTables</Role>
      <ShortName>Fair Value Measurement (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/FairValueMeasurement</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2326306 - Disclosure - Convertible Senior Notes (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/ConvertibleSeniorNotesTables</Role>
      <ShortName>Convertible Senior Notes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/ConvertibleSeniorNotes</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2335307 - Disclosure - Stockholders' Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquityTables</Role>
      <ShortName>Stockholders' Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.chegg.com/role/StockholdersEquity</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2404401 - Disclosure - Background and Basis of Presentation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/BackgroundandBasisofPresentationDetails</Role>
      <ShortName>Background and Basis of Presentation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.chegg.com/role/BackgroundandBasisofPresentationTables</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2405402 - Disclosure - Background and Basis of Presentation - Other Income (Expenses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails</Role>
      <ShortName>Background and Basis of Presentation - Other Income (Expenses) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2406403 - Disclosure - Background and Basis of Presentation - Convertible Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails</Role>
      <ShortName>Background and Basis of Presentation - Convertible Notes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2409404 - Disclosure - Revenues (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/RevenuesDetails</Role>
      <ShortName>Revenues (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.chegg.com/role/RevenuesTables</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2412405 - Disclosure - Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails</Role>
      <ShortName>Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2413406 - Disclosure - Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails</Role>
      <ShortName>Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2416407 - Disclosure - Cash and Cash Equivalents, and Investments - Schedule of Available For Sale Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails</Role>
      <ShortName>Cash and Cash Equivalents, and Investments - Schedule of Available For Sale Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2417408 - Disclosure - Cash and Cash Equivalents, and Investments - Contractual Maturity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails</Role>
      <ShortName>Cash and Cash Equivalents, and Investments - Contractual Maturity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2418409 - Disclosure - Cash and Cash Equivalents, and Investments - Strategic Investment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails</Role>
      <ShortName>Cash and Cash Equivalents, and Investments - Strategic Investment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2421410 - Disclosure - Fair Value Measurement - Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails</Role>
      <ShortName>Fair Value Measurement - Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2422411 - Disclosure - Fair Value Measurement - Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/FairValueMeasurementDebtDetails</Role>
      <ShortName>Fair Value Measurement - Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2424412 - Disclosure - Acquisitions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/AcquisitionsDetails</Role>
      <ShortName>Acquisitions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.chegg.com/role/Acquisitions</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2427413 - Disclosure - Convertible Senior Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/ConvertibleSeniorNotesDetails</Role>
      <ShortName>Convertible Senior Notes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.chegg.com/role/ConvertibleSeniorNotesTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2428414 - Disclosure - Convertible Senior Notes - Net Carrying Amount (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails</Role>
      <ShortName>Convertible Senior Notes - Net Carrying Amount (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2429415 - Disclosure - Convertible Senior Notes - Interest Expense Recognized (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails</Role>
      <ShortName>Convertible Senior Notes - Interest Expense Recognized (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2430416 - Disclosure - Convertible Senior Notes - Capped Call (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails</Role>
      <ShortName>Convertible Senior Notes - Capped Call (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2432417 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/CommitmentsandContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.chegg.com/role/CommitmentsandContingencies</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2436418 - Disclosure - Stockholders' Equity - Equity Offering (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails</Role>
      <ShortName>Stockholders' Equity - Equity Offering (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2437419 - Disclosure - Stockholders' Equity - Securities Repurchase Program (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails</Role>
      <ShortName>Stockholders' Equity - Securities Repurchase Program (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2438420 - Disclosure - Stockholders' Equity - Share-based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails</Role>
      <ShortName>Stockholders' Equity - Share-based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2439421 - Disclosure - Stockholders' Equity - 2021 PSU Grants with Market-Based Conditions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails</Role>
      <ShortName>Stockholders' Equity - 2021 PSU Grants with Market-Based Conditions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2440422 - Disclosure - Stockholders' Equity - Summary of Assumptions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails</Role>
      <ShortName>Stockholders' Equity - Summary of Assumptions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2441423 - Disclosure - Stockholders' Equity - 2021 PSU Grants with Financial and Strategic Performance Targets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails</Role>
      <ShortName>Stockholders' Equity - 2021 PSU Grants with Financial and Strategic Performance Targets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2442424 - Disclosure - Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails</Role>
      <ShortName>Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2443425 - Disclosure - Stockholders' Equity - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails</Role>
      <ShortName>Stockholders' Equity - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2445426 - Disclosure - Related-Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.chegg.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>Related-Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.chegg.com/role/RelatedPartyTransactions</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="chgg-20210331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9999.htm</HtmlFileName>
      <LongName>Uncategorized Items - chgg-20210331.htm</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/role/uncategorizedFacts</Role>
      <ShortName>Uncategorized Items - chgg-20210331.htm</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-Q" original="chgg-20210331.htm">chgg-20210331.htm</File>
    <File>chgg-20210331.xsd</File>
    <File>chgg-20210331_cal.xml</File>
    <File>chgg-20210331_def.xml</File>
    <File>chgg-20210331_lab.xml</File>
    <File>chgg-20210331_pre.xml</File>
    <File>ex31012021-03x31.htm</File>
    <File>ex31022021-03x31.htm</File>
    <File>ex32012021-03x31.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>chgg-20210331_g1.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>71
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "chgg-20210331.htm": {
   "axisCustom": 2,
   "axisStandard": 29,
   "contextCount": 200,
   "dts": {
    "calculationLink": {
     "local": [
      "chgg-20210331_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "chgg-20210331_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-eedm-def-2020-01-31.xml",
      "http://xbrl.fasb.org/srt/2020/elts/srt-eedm1-def-2020-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "chgg-20210331.htm"
     ]
    },
    "labelLink": {
     "local": [
      "chgg-20210331_lab.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-doc-2020-01-31.xml",
      "https://xbrl.sec.gov/dei/2020/dei-doc-2020-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "chgg-20210331_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-ref-2020-01-31.xml",
      "https://xbrl.sec.gov/dei/2020/dei-ref-2020-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "chgg-20210331.xsd"
     ],
     "remote": [
      "http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd",
      "http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd",
      "https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd",
      "https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "http://xbrl.fasb.org/us-gaap/2020/elts/us-parts-codification-2020-01-31.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 485,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2020-01-31": 5,
    "http://xbrl.sec.gov/dei/2020-01-31": 5,
    "total": 10
   },
   "keyCustom": 45,
   "keyStandard": 310,
   "memberCustom": 26,
   "memberStandard": 38,
   "nsprefix": "chgg",
   "nsuri": "http://www.chegg.com/20210331",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001001 - Document - Cover Page",
     "role": "http://www.chegg.com/role/CoverPage",
     "shortName": "Cover Page",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2110103 - Disclosure - Net Loss Per Share",
     "role": "http://www.chegg.com/role/NetLossPerShare",
     "shortName": "Net Loss Per Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2114104 - Disclosure - Cash and Cash Equivalents, and Investments",
     "role": "http://www.chegg.com/role/CashandCashEquivalentsandInvestments",
     "shortName": "Cash and Cash Equivalents, and Investments",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2119105 - Disclosure - Fair Value Measurement",
     "role": "http://www.chegg.com/role/FairValueMeasurement",
     "shortName": "Fair Value Measurement",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessCombinationDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2123106 - Disclosure - Acquisitions",
     "role": "http://www.chegg.com/role/Acquisitions",
     "shortName": "Acquisitions",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessCombinationDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2125107 - Disclosure - Convertible Senior Notes",
     "role": "http://www.chegg.com/role/ConvertibleSeniorNotes",
     "shortName": "Convertible Senior Notes",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2131108 - Disclosure - Commitments and Contingencies",
     "role": "http://www.chegg.com/role/CommitmentsandContingencies",
     "shortName": "Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "chgg:GuaranteesAndIndemnificationsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2133109 - Disclosure - Guarantees and Indemnifications",
     "role": "http://www.chegg.com/role/GuaranteesandIndemnifications",
     "shortName": "Guarantees and Indemnifications",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "chgg:GuaranteesAndIndemnificationsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2134110 - Disclosure - Stockholders' Equity",
     "role": "http://www.chegg.com/role/StockholdersEquity",
     "shortName": "Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2144111 - Disclosure - Related-Party Transactions",
     "role": "http://www.chegg.com/role/RelatedPartyTransactions",
     "shortName": "Related-Party Transactions",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2203201 - Disclosure - Background and Basis of Presentation (Policies)",
     "role": "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies",
     "shortName": "Background and Basis of Presentation (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS",
     "role": "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
     "shortName": "CONDENSED CONSOLIDATED BALANCE SHEETS",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:PrepaidExpenseCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2302301 - Disclosure - Background and Basis of Presentation (Tables)",
     "role": "http://www.chegg.com/role/BackgroundandBasisofPresentationTables",
     "shortName": "Background and Basis of Presentation (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2308302 - Disclosure - Revenues (Tables)",
     "role": "http://www.chegg.com/role/RevenuesTables",
     "shortName": "Revenues (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2311303 - Disclosure - Net Loss Per Share (Tables)",
     "role": "http://www.chegg.com/role/NetLossPerShareTables",
     "shortName": "Net Loss Per Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2315304 - Disclosure - Cash and Cash Equivalents, and Investments (Tables)",
     "role": "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables",
     "shortName": "Cash and Cash Equivalents, and Investments (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2320305 - Disclosure - Fair Value Measurement (Tables)",
     "role": "http://www.chegg.com/role/FairValueMeasurementTables",
     "shortName": "Fair Value Measurement (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2326306 - Disclosure - Convertible Senior Notes (Tables)",
     "role": "http://www.chegg.com/role/ConvertibleSeniorNotesTables",
     "shortName": "Convertible Senior Notes (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2335307 - Disclosure - Stockholders' Equity (Tables)",
     "role": "http://www.chegg.com/role/StockholdersEquityTables",
     "shortName": "Stockholders' Equity (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccruedLiabilitiesCurrent",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2404401 - Disclosure - Background and Basis of Presentation (Details)",
     "role": "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
     "shortName": "Background and Basis of Presentation (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12764ae8b0df47c59efefac345506072_I20201231",
      "decimals": "-5",
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GainsLossesOnExtinguishmentOfDebt",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405402 - Disclosure - Background and Basis of Presentation - Other Income (Expenses) (Details)",
     "role": "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails",
     "shortName": "Background and Basis of Presentation - Other Income (Expenses) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:InterestIncomeExpenseNonoperatingNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i5e5e3fab2e7b491f8a3e926ce510b009_I20200831",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtInstrumentFaceAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406403 - Disclosure - Background and Basis of Presentation - Convertible Notes (Details)",
     "role": "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
     "shortName": "Background and Basis of Presentation - Convertible Notes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)",
     "role": "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical",
     "shortName": "CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409404 - Disclosure - Revenues (Details)",
     "role": "http://www.chegg.com/role/RevenuesDetails",
     "shortName": "Revenues (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "chgg:RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2412405 - Disclosure - Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)",
     "role": "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails",
     "shortName": "Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413406 - Disclosure - Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details)",
     "role": "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails",
     "shortName": "Net Loss Per Share - Shares Excluded From Computation Of Diluted Net Loss Per Share (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2416407 - Disclosure - Cash and Cash Equivalents, and Investments - Schedule of Available For Sale Securities (Details)",
     "role": "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
     "shortName": "Cash and Cash Equivalents, and Investments - Schedule of Available For Sale Securities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i33fb31eb5b3d4aceb5ea960cfdf16628_I20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417408 - Disclosure - Cash and Cash Equivalents, and Investments - Contractual Maturity (Details)",
     "role": "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails",
     "shortName": "Cash and Cash Equivalents, and Investments - Contractual Maturity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentRealizedGainLossOnDisposal",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2418409 - Disclosure - Cash and Cash Equivalents, and Investments - Strategic Investment (Details)",
     "role": "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails",
     "shortName": "Cash and Cash Equivalents, and Investments - Strategic Investment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i8e328d3f7ae94d14ad10de83aa462d9a_I20200331",
      "decimals": "-5",
      "lang": "en-US",
      "name": "us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShortTermInvestments",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421410 - Disclosure - Fair Value Measurement - Financial Instruments (Details)",
     "role": "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails",
     "shortName": "Fair Value Measurement - Financial Instruments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i400b4a04d23446aca3c6f478368b9612_I20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i8631bb0aa5c5403e9a670bd4ad3bb103_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LongTermDebtFairValue",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2422411 - Disclosure - Fair Value Measurement - Debt (Details)",
     "role": "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
     "shortName": "Fair Value Measurement - Debt (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ic4d1aadda93d4ee0b061ddaacc83fcb0_I20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:LongTermDebtFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:Goodwill",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2424412 - Disclosure - Acquisitions (Details)",
     "role": "http://www.chegg.com/role/AcquisitionsDetails",
     "shortName": "Acquisitions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2dc86f35b05d4b209a4ea1f4c09275a9_I20210222",
      "decimals": "INF",
      "lang": "en-US",
      "name": "chgg:BusinessCombinationPercentOwnershipAcquired",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RepaymentsOfConvertibleDebt",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2427413 - Disclosure - Convertible Senior Notes (Details)",
     "role": "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
     "shortName": "Convertible Senior Notes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "iebd16c25b055465eb3a3ee69e374cdf6_D20210101-20210331",
      "decimals": "-5",
      "lang": "en-US",
      "name": "us-gaap:DebtConversionOriginalDebtAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS",
     "role": "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
     "shortName": "CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:CostOfRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i11978135b6904d1baefe472298180885_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtInstrumentFaceAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2428414 - Disclosure - Convertible Senior Notes - Net Carrying Amount (Details)",
     "role": "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
     "shortName": "Convertible Senior Notes - Net Carrying Amount (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "chgg:ScheduleOfInterestExpenseRecognizedTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ic913f67407734139bb465a041bd7b56a_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InterestExpenseDebtExcludingAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2429415 - Disclosure - Convertible Senior Notes - Interest Expense Recognized (Details)",
     "role": "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
     "shortName": "Convertible Senior Notes - Interest Expense Recognized (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "chgg:ScheduleOfInterestExpenseRecognizedTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ic913f67407734139bb465a041bd7b56a_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InterestExpenseDebtExcludingAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i1a9c08e3930a454696936ce39d040109_D20200801-20200831",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ProceedsFromDebtNetOfIssuanceCosts",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2430416 - Disclosure - Convertible Senior Notes - Capped Call (Details)",
     "role": "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
     "shortName": "Convertible Senior Notes - Capped Call (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "id8786dbc8fd440b79f10ef7c37a3f18c_I20210331",
      "decimals": "INF",
      "lang": "en-US",
      "name": "chgg:DebtInstrumentConvertibleShares",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "iffcce83a3e0a48929e979c62d5fe0feb_D20200812-20200812",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LossContingencyNewClaimsFiledNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "numberofplaintiffs",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2432417 - Disclosure - Commitments and Contingencies (Details)",
     "role": "http://www.chegg.com/role/CommitmentsandContingenciesDetails",
     "shortName": "Commitments and Contingencies (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "iffcce83a3e0a48929e979c62d5fe0feb_D20200812-20200812",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LossContingencyNewClaimsFiledNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "numberofplaintiffs",
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2436418 - Disclosure - Stockholders' Equity - Equity Offering (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails",
     "shortName": "Stockholders' Equity - Equity Offering (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i3f5dc4980a1c4d05bf3ee1a6526a6086_D20210201-20210228",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i4d2401de5ba546d390f5e9974709da7f_I20200630",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437419 - Disclosure - Stockholders' Equity - Securities Repurchase Program (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails",
     "shortName": "Stockholders' Equity - Securities Repurchase Program (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i4d2401de5ba546d390f5e9974709da7f_I20200630",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2438420 - Disclosure - Stockholders' Equity - Share-based Compensation Expense (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails",
     "shortName": "Stockholders' Equity - Share-based Compensation Expense (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "if1ccb61b2eca47959ec3f2b1c83d2516_I20210331",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2439421 - Disclosure - Stockholders' Equity - 2021 PSU Grants with Market-Based Conditions (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
     "shortName": "Stockholders' Equity - 2021 PSU Grants with Market-Based Conditions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "if1ccb61b2eca47959ec3f2b1c83d2516_I20210331",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "chgg:ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1",
      "reportCount": 1,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2440422 - Disclosure - Stockholders' Equity - Summary of Assumptions (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails",
     "shortName": "Stockholders' Equity - Summary of Assumptions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ie724d04f7f8645a3af05c7b19c1e6f22_D20210101-20210331",
      "decimals": "INF",
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2441423 - Disclosure - Stockholders' Equity - 2021 PSU Grants with Financial and Strategic Performance Targets (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
     "shortName": "Stockholders' Equity - 2021 PSU Grants with Financial and Strategic Performance Targets (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i9fcf8f92fe364fc68c39d5d22142e571_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS",
     "role": "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS",
     "shortName": "CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i91929bef1c4e43a2abbf3d3a09e0d999_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2442424 - Disclosure - Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails",
     "shortName": "Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i91929bef1c4e43a2abbf3d3a09e0d999_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331",
      "decimals": "-5",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2443425 - Disclosure - Stockholders' Equity - Additional Information (Details)",
     "role": "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails",
     "shortName": "Stockholders' Equity - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i7c2e599d5a6c4e1ab3f1e82467c73595_I20210331",
      "decimals": "-5",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i1f614ee084a1468686803c83c6301868_D20210101-20210331",
      "decimals": "-5",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2445426 - Disclosure - Related-Party Transactions (Details)",
     "role": "http://www.chegg.com/role/RelatedPartyTransactionsDetails",
     "shortName": "Related-Party Transactions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i1f614ee084a1468686803c83c6301868_D20210101-20210331",
      "decimals": "-5",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ia37ef2d2a7f7485b8572cd1094d91041_I20191231",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommonStockSharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1005006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY",
     "role": "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
     "shortName": "CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "ia37ef2d2a7f7485b8572cd1094d91041_I20191231",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommonStockSharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1006007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS",
     "role": "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
     "shortName": "CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "chgg:DepreciationTextbookLibrary",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101101 - Disclosure - Background and Basis of Presentation",
     "role": "http://www.chegg.com/role/BackgroundandBasisofPresentation",
     "shortName": "Background and Basis of Presentation",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2107102 - Disclosure - Revenues",
     "role": "http://www.chegg.com/role/Revenues",
     "shortName": "Revenues",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i2db08c128b564996a428d4c2874a56d1_D20210101-20210331",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9999": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RestrictedCashAndCashEquivalentsNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "",
     "isDefault": "false",
     "longName": "Uncategorized Items - chgg-20210331.htm",
     "role": "http://xbrl.sec.gov/role/uncategorizedFacts",
     "shortName": "Uncategorized Items - chgg-20210331.htm",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "chgg-20210331.htm",
      "contextRef": "i12c51d956373407db8eea0de5a215709_I20210331",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RestrictedCashAndCashEquivalentsNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 72,
   "tag": {
    "chgg_A0.125PercentConvertibleSeniorNotesDue2025Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "0.125 Percent Convertible Senior Notes Due 2025 [Member]",
        "label": "0.125 Percent Convertible Senior Notes Due 2025 [Member]",
        "terseLabel": "0.125% Convertible Senior Notes Due 2025"
       }
      }
     },
     "localname": "A0.125PercentConvertibleSeniorNotesDue2025Member",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_A0.25PercentConvertibleSeniorNotesDue2023Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "0.25 Percent Convertible Senior Notes Due 2023 [Member]",
        "label": "0.25 Percent Convertible Senior Notes Due 2023 [Member]",
        "terseLabel": "0.25% Convertible Senior Notes Due 2023"
       }
      }
     },
     "localname": "A0.25PercentConvertibleSeniorNotesDue2023Member",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_A0ConvertibleSeniorNotesDue2026AdditionalNotesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "0% Convertible Senior Notes Due 2026, Additional Notes",
        "label": "0% Convertible Senior Notes Due 2026, Additional Notes [Member]",
        "terseLabel": "0% Convertible Senior Notes Due 2026, Additional Notes"
       }
      }
     },
     "localname": "A0ConvertibleSeniorNotesDue2026AdditionalNotesMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_A0ConvertibleSeniorNotesDue2026Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "0% Convertible Senior Notes Due 2026",
        "label": "0% Convertible Senior Notes Due 2026 [Member]",
        "terseLabel": "0% Convertible Senior Notes Due 2026"
       }
      }
     },
     "localname": "A0ConvertibleSeniorNotesDue2026Member",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_A2018DataIncidentArbitrationDemandsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "2018 Data Incident, Arbitration Demands",
        "label": "2018 Data Incident, Arbitration Demands [Member]",
        "terseLabel": "2018 Data Incident, Arbitration Demands"
       }
      }
     },
     "localname": "A2018DataIncidentArbitrationDemandsMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_AccountingStandardsUpdate202006Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accounting Standards Update 2020-06",
        "label": "Accounting Standards Update 2020-06 [Member]",
        "terseLabel": "Accounting Standards Update 2020-06"
       }
      }
     },
     "localname": "AccountingStandardsUpdate202006Member",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Adjustments To Additional Paid In Capital, Proceeds From Capped Call",
        "label": "Adjustments To Additional Paid In Capital, Proceeds From Capped Call",
        "terseLabel": "Net proceeds from capped call related to conversions and extinguishments of 2023 notes and 2025 notes"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalProceedsFromCappedCall",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_AdobeSystemsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Adobe systems.",
        "label": "Adobe Systems [Member]",
        "terseLabel": "Adobe Systems"
       }
      }
     },
     "localname": "AdobeSystemsMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_AvailableForSaleSecuritiesWeightedAverageMaturity": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Available For Sale Securities, Weighted Average Maturity",
        "label": "Available For Sale Securities, Weighted Average Maturity",
        "terseLabel": "Weighted average maturity"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesWeightedAverageMaturity",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Available-for-sale Securities, Debt Maturities, Year One Through Two, Amortized Cost Basis",
        "label": "Available-for-sale Securities, Debt Maturities, Year One Through Two, Amortized Cost Basis",
        "terseLabel": "Due in 1-2 years, Cost"
       }
      }
     },
     "localname": "AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoAmortizedCostBasis",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Available-for-sale Securities, Debt Maturities, Year One Through Two, Fair Value",
        "label": "Available-for-sale Securities, Debt Maturities, Year One Through Two, Fair Value",
        "terseLabel": "Due in 1-2 years, Fair Value"
       }
      }
     },
     "localname": "AvailableforsaleSecuritiesDebtMaturitiesYearOneThroughTwoFairValue",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_BoardOfDirectorsMemberMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Board Of Directors Member",
        "label": "Board Of Directors Member [Member]",
        "terseLabel": "Board Of Directors Member"
       }
      }
     },
     "localname": "BoardOfDirectorsMemberMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_BusinessCombinationPercentOwnershipAcquired": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Business Combination, Percent Ownership Acquired",
        "label": "Business Combination, Percent Ownership Acquired",
        "terseLabel": "Ownership percent of stock acquired"
       }
      }
     },
     "localname": "BusinessCombinationPercentOwnershipAcquired",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_CappedCallMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Capped Call [Member]",
        "label": "Capped Call [Member]",
        "terseLabel": "Capped Call"
       }
      }
     },
     "localname": "CappedCallMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_CheggServicesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Chegg Services [Member]",
        "label": "Chegg Services [Member]",
        "terseLabel": "Chegg Services"
       }
      }
     },
     "localname": "CheggServicesMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_DebtCovenantTermsAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Covenant Terms [Axis]",
        "label": "Debt Covenant Terms [Axis]",
        "terseLabel": "Debt Covenant Terms [Axis]"
       }
      }
     },
     "localname": "DebtCovenantTermsAxis",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "chgg_DebtCovenantTermsDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "[Domain] for Debt Covenant Terms [Axis]",
        "label": "Debt Covenant Terms [Domain]",
        "terseLabel": "Debt Covenant Terms [Domain]"
       }
      }
     },
     "localname": "DebtCovenantTermsDomain",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Consideration Transferred, Equity Interests Issued And Issuable",
        "label": "Debt Instrument, Consideration Transferred, Equity Interests Issued And Issuable",
        "terseLabel": "Debt conversion, shares issued, value"
       }
      }
     },
     "localname": "DebtInstrumentConsiderationTransferredEquityInterestsIssuedAndIssuable",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_DebtInstrumentConvertibleShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Convertible, Shares",
        "label": "Debt Instrument, Convertible, Shares",
        "terseLabel": "Debt instrument, convertible (in shares)"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleShares",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "chgg_DebtInstrumentConvertibleSharesTerminated": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Convertible, Shares Terminated",
        "label": "Debt Instrument, Convertible, Shares Terminated",
        "terseLabel": "Debt instrument, convertible, shares terminated (in shares)"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleSharesTerminated",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "chgg_DebtInstrumentDebtConversionConsideration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Debt Conversion, Consideration",
        "label": "Debt Instrument, Debt Conversion, Consideration",
        "terseLabel": "Debt conversion, consideration"
       }
      }
     },
     "localname": "DebtInstrumentDebtConversionConsideration",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_DebtInstrumentDebtConversionEquityInstrumentsIssued": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Debt Conversion, Equity Instruments Issued",
        "label": "Debt Instrument, Debt Conversion, Equity Instruments Issued",
        "terseLabel": "Debt conversion, equity instruments issued (in shares)"
       }
      }
     },
     "localname": "DebtInstrumentDebtConversionEquityInstrumentsIssued",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "chgg_DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Debt Conversion, Equity Instruments Issued, Amount",
        "label": "Debt Instrument, Debt Conversion, Equity Instruments Issued, Amount",
        "terseLabel": "Debt conversion, equity instruments issued, amount"
       }
      }
     },
     "localname": "DebtInstrumentDebtConversionEquityInstrumentsIssuedAmount",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Face Amount, Option To Purchase Additional Notes",
        "label": "Debt Instrument, Face Amount, Option To Purchase Additional Notes",
        "terseLabel": "Option to purchase additional notes"
       }
      }
     },
     "localname": "DebtInstrumentFaceAmountOptionToPurchaseAdditionalNotes",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_DebtInstrumentPrincipalAmountExchangedConsiderationTransferred": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Principal Amount Exchanged, Consideration Transferred",
        "label": "Debt Instrument, Principal Amount Exchanged, Consideration Transferred",
        "terseLabel": "Aggregate consideration for principal amount exchanged"
       }
      }
     },
     "localname": "DebtInstrumentPrincipalAmountExchangedConsiderationTransferred",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_DebtInstrumentTransactionAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument Transaction [Axis]",
        "label": "Debt Instrument Transaction [Axis]",
        "terseLabel": "Debt Instrument Transaction [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentTransactionAxis",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "chgg_DebtInstrumentTransactionDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "[Domain] for Debt Instrument Transaction [Axis]",
        "label": "Debt Instrument Transaction [Domain]",
        "terseLabel": "Debt Instrument Transaction [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentTransactionDomain",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_DepreciationTextbookLibrary": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Depreciation, Textbook Library",
        "label": "Depreciation, Textbook Library",
        "terseLabel": "Print textbook depreciation expense"
       }
      }
     },
     "localname": "DepreciationTextbookLibrary",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_ExchangeOfAggregatePrincipalAmountMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Exchange Of Aggregate Principal Amount",
        "label": "Exchange Of Aggregate Principal Amount [Member]",
        "terseLabel": "Exchange Of Aggregate Principal Amount"
       }
      }
     },
     "localname": "ExchangeOfAggregatePrincipalAmountMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_ForeignEntityMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Foreign Entity [Member]",
        "label": "Foreign Entity [Member]",
        "terseLabel": "Foreign Entity"
       }
      }
     },
     "localname": "ForeignEntityMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_GuaranteesAndIndemnificationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Guarantees and indemnifications.",
        "label": "Guarantees And Indemnifications [Abstract]",
        "terseLabel": "Guarantees And Indemnifications [Abstract]"
       }
      }
     },
     "localname": "GuaranteesAndIndemnificationsAbstract",
     "nsuri": "http://www.chegg.com/20210331",
     "xbrltype": "stringItemType"
    },
    "chgg_GuaranteesAndIndemnificationsTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Guarantees and indemnifications.",
        "label": "Guarantees And Indemnifications [Text Block]",
        "terseLabel": "Guarantees and Indemnifications"
       }
      }
     },
     "localname": "GuaranteesAndIndemnificationsTextBlock",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/GuaranteesandIndemnifications"
     ],
     "xbrltype": "textBlockItemType"
    },
    "chgg_IncreaseDecreaseInAccountsReceivableNet": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Accounts Receivable, Net",
        "label": "Increase (Decrease) In Accounts Receivable, Net",
        "terseLabel": "Change in accounts receivable"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsReceivableNet",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_IncreaseDecreaseInContractWithCustomerAssets": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Contract With Customer, Assets",
        "label": "Increase (Decrease) In Contract With Customer, Assets",
        "terseLabel": "Change in contract assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInContractWithCustomerAssets",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_IncreaseDecreaseInContractWithCustomerAssetsPercent": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase Decrease In Contract With Customer Assets Percent",
        "label": "Increase Decrease In Contract With Customer Assets Percent",
        "terseLabel": "Change in contract assets, percent"
       }
      }
     },
     "localname": "IncreaseDecreaseInContractWithCustomerAssetsPercent",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_IncreaseDecreaseinAccountsReceivablePercent": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) in Accounts Receivable, Percent",
        "label": "Increase (Decrease) in Accounts Receivable, Percent",
        "terseLabel": "Change in accounts receivable, percent"
       }
      }
     },
     "localname": "IncreaseDecreaseinAccountsReceivablePercent",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_IncreaseDecreaseinContractwithCustomerLiabilityPercent": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) in Contract with Customer, Liability, Percent",
        "label": "Increase (Decrease) in Contract with Customer, Liability, Percent",
        "terseLabel": "Change in deferred revenue, percent"
       }
      }
     },
     "localname": "IncreaseDecreaseinContractwithCustomerLiabilityPercent",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_OtherIncomeExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherNonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Other Income (Expense)",
        "label": "Other Income (Expense)",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherIncomeExpense",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_PayPalHoldingsInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "PayPal Holdings, Inc.",
        "label": "PayPal Holdings, Inc. [Member]",
        "terseLabel": "PayPal Holdings, Inc."
       }
      }
     },
     "localname": "PayPalHoldingsInc.Member",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_PaymentProcessingFeesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Payment Processing Fees [Member]",
        "label": "Payment Processing Fees [Member]",
        "terseLabel": "Payment Processing Fees"
       }
      }
     },
     "localname": "PaymentProcessingFeesMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_PaymentToPurchasesTextbooks": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Payment to purchases textbooks",
        "label": "Payment To Purchases Textbooks",
        "negatedTerseLabel": "Purchases of textbooks"
       }
      }
     },
     "localname": "PaymentToPurchasesTextbooks",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_PaymentsForInitialPurchasersDiscount": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_ProceedsFromDebtNetOfIssuanceCosts",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Payments For Initial Purchasers Discount",
        "label": "Payments For Initial Purchasers Discount",
        "negatedTerseLabel": "Less initial purchasers\u2019 discount"
       }
      }
     },
     "localname": "PaymentsForInitialPurchasersDiscount",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_PerformanceSharesFinancialAndStrategicPerformanceTargetsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Performance Shares, Financial And Strategic Performance Targets",
        "label": "Performance Shares, Financial And Strategic Performance Targets [Member]",
        "terseLabel": "PSUs with Financial and Strategic Performance Targets"
       }
      }
     },
     "localname": "PerformanceSharesFinancialAndStrategicPerformanceTargetsMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_PerformanceSharesMarketBasedConditionsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Performance Shares, Market Based Conditions",
        "label": "Performance Shares, Market Based Conditions [Member]",
        "terseLabel": "PSUs with Market Based Conditions"
       }
      }
     },
     "localname": "PerformanceSharesMarketBasedConditionsMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_ProceedsFromCappedCall": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Proceeds From Capped Call",
        "label": "Proceeds From Capped Call",
        "terseLabel": "Proceeds from capped call"
       }
      }
     },
     "localname": "ProceedsFromCappedCall",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_ProceedsFromDispositionOfTextbooks": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Proceeds From Disposition Of Textbooks",
        "label": "Proceeds From Disposition Of Textbooks",
        "terseLabel": "Proceeds from disposition of textbooks"
       }
      }
     },
     "localname": "ProceedsFromDispositionOfTextbooks",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_ProceedsFromIssuanceOfEmployeeStockPurchasePlan": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Proceeds From Issuance Of Employee Stock Purchase Plan",
        "label": "Proceeds From Issuance Of Employee Stock Purchase Plan",
        "terseLabel": "Proceeds from common stock issued under stock plans, net"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfEmployeeStockPurchasePlan",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_PublicOfferingMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Public Offering",
        "label": "Public Offering [Member]",
        "terseLabel": "Public Offering"
       }
      }
     },
     "localname": "PublicOfferingMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Related Party Transactions, Number of Board Members Appointed to Board of Directors of Related Party",
        "label": "Related Party Transactions, Number of Board Members Appointed to Board of Directors of Related Party",
        "terseLabel": "Number of board members appointed to board of directors of related party"
       }
      }
     },
     "localname": "RelatedPartyTransactionsNumberofBoardMembersAppointedtoBoardofDirectorsofRelatedParty",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "chgg_RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Related Party Transactions, Number of Board Members Appointed to Chief Executive Officer of Related Party",
        "label": "Related Party Transactions, Number of Board Members Appointed to Chief Executive Officer of Related Party",
        "terseLabel": "Number of board members appointed to Board of Directors of related party"
       }
      }
     },
     "localname": "RelatedPartyTransactionsNumberofBoardMembersAppointedtoChiefExecutiveOfficerofRelatedParty",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "chgg_RequiredMaterialsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Required Materials [Member]",
        "label": "Required Materials [Member]",
        "terseLabel": "Required Materials"
       }
      }
     },
     "localname": "RequiredMaterialsMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Restricted Stock Units (RSUs) And Performance Share Units (PSUs)",
        "label": "Restricted Stock Units (RSUs) And Performance Share Units (PSUs) [Member]",
        "terseLabel": "PSUs and RSUs"
       }
      }
     },
     "localname": "RestrictedStockUnitsRSUsAndPerformanceShareUnitsPSUsMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails",
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease)",
        "label": "Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease)",
        "terseLabel": "Change in total net revenues"
       }
      }
     },
     "localname": "RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecrease",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease), Percent",
        "label": "Revenue from Contract with Customer, Including Assessed Tax, Increase (Decrease), Percent",
        "terseLabel": "Change in total net revenues, percent"
       }
      }
     },
     "localname": "RevenuefromContractwithCustomerIncludingAssessedTaxIncreaseDecreasePercent",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_SaleOfStockOfferingExpenses": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale Of Stock, Offering Expenses",
        "label": "Sale Of Stock, Offering Expenses",
        "terseLabel": "Offering expenses"
       }
      }
     },
     "localname": "SaleOfStockOfferingExpenses",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_SaleOfStockUnderwritingDiscountsAndCommissions": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale Of Stock, Underwriting Discounts And Commissions",
        "label": "Sale Of Stock, Underwriting Discounts And Commissions",
        "terseLabel": "Underwriting discounts and commissions"
       }
      }
     },
     "localname": "SaleOfStockUnderwritingDiscountsAndCommissions",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_SalePriceIsGreaterOrEqual130PercentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale Price Is Greater Or Equal 130 Percent [Member]",
        "label": "Sale Price Is Greater Or Equal 130 Percent [Member]",
        "terseLabel": "Sale Price Is Greater Or Equal 130%"
       }
      }
     },
     "localname": "SalePriceIsGreaterOrEqual130PercentMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_ScheduleOfInterestExpenseRecognizedTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule Of Interest Expense Recognized [Table Text Block]",
        "label": "Schedule Of Interest Expense Recognized [Table Text Block]",
        "terseLabel": "Schedule Of Interest Expense Recognized"
       }
      }
     },
     "localname": "ScheduleOfInterestExpenseRecognizedTableTextBlock",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Consecutive Trading Days Achieving Maximum Average Market Value",
        "label": "Share Based Arrangement By Share Based Payment Award, Consecutive Trading Days Achieving Maximum Average Market Value",
        "terseLabel": "Consecutive trading days achieving maximum average market value"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardConsecutiveTradingDaysAchievingMaximumAverageMarketValue",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardConversionRatio": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Conversion Ratio",
        "label": "Share Based Arrangement By Share Based Payment Award, Conversion Ratio",
        "terseLabel": "Conversion ratio"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardConversionRatio",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Market Value Per Share Price Minimum Threshold",
        "label": "Share Based Arrangement By Share Based Payment Award, Market Value Per Share Price Minimum Threshold",
        "terseLabel": "Market value per share price minimum threshold (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardMarketValuePerSharePriceMinimumThreshold",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Performance Period",
        "label": "Share Based Arrangement By Share Based Payment Award, Performance Period",
        "terseLabel": "Performance period"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardPerformancePeriod",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Stock Issued Based On Achieving Target Levels",
        "label": "Share Based Arrangement By Share Based Payment Award, Stock Issued Based On Achieving Target Levels",
        "terseLabel": "Stock issued based on achieving target levels (in shares)"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardStockIssuedBasedOnAchievingTargetLevels",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value",
        "label": "Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value",
        "terseLabel": "Stock issued as percent of target level of achieving maximum average market value"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValue",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value, Target Level Of Award",
        "label": "Share Based Arrangement By Share Based Payment Award, Stock Issued Percent Of Target Level Of Achieving Maximum Average Market Value, Target Level Of Award",
        "terseLabel": "Target level of award"
       }
      }
     },
     "localname": "ShareBasedArrangementByShareBasedPaymentAwardStockIssuedPercentOfTargetLevelOfAchievingMaximumAverageMarketValueTargetLevelOfAward",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "chgg_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock Issued During Period, Shares, Employee Stock Purchase Plan and Stock Options Exercised",
        "label": "Stock Issued During Period, Shares, Employee Stock Purchase Plan and Stock Options Exercised",
        "terseLabel": "Issuance of common stock upon exercise of stock options and ESPP (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlanandStockOptionsExercised",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "sharesItemType"
    },
    "chgg_StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock Issued During Period, Value, Employee Stock Purchase Plan and Stock Options Exercised",
        "label": "Stock Issued During Period, Value, Employee Stock Purchase Plan and Stock Options Exercised",
        "terseLabel": "Issuance of common stock upon exercise of stock options and ESPP"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlanandStockOptionsExercised",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_StockIssuedRepaymentForConvertibleSeniorNotes": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock Issued, Repayment For Convertible Senior Notes",
        "label": "Stock Issued, Repayment For Convertible Senior Notes",
        "terseLabel": "Issuance of common stock related to repayment of convertible senior notes"
       }
      }
     },
     "localname": "StockIssuedRepaymentForConvertibleSeniorNotes",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_TAPDInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "TAPD, Inc. [Member]",
        "label": "TAPD, Inc. [Member]",
        "terseLabel": "TAPD, Inc."
       }
      }
     },
     "localname": "TAPDInc.Member",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_TechnologyCompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Technology Company",
        "label": "Technology Company [Member]",
        "terseLabel": "Technology Company"
       }
      }
     },
     "localname": "TechnologyCompanyMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_TextbookLibraryGainLossNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Gain and write-down on textbook library",
        "label": "Textbook Library, Gain (Loss), Net",
        "negatedTerseLabel": "Loss (gain) on textbook library, net"
       }
      }
     },
     "localname": "TextbookLibraryGainLossNet",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_TextbookLibraryMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Textbooks [Member]",
        "label": "Textbook Library [Member]",
        "terseLabel": "Textbook Library"
       }
      }
     },
     "localname": "TextbookLibraryMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_TextbookLibraryNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 8.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of amounts paid for textbooks which met the criteria for capitalization, net of related accumulated depreciation, which is expected to be used beyond one year.",
        "label": "Textbook Library Net",
        "terseLabel": "Textbook library, net"
       }
      }
     },
     "localname": "TextbookLibraryNet",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "chgg_TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Trading Price Per 1000 Dollar Principal Amount Less Than 98 Percent [Member]",
        "label": "Trading Price Per 1000 Dollar Principal Amount Less Than 98 Percent [Member]",
        "terseLabel": "Trading Price Per $1,000 Principal Amount Less Than 98%"
       }
      }
     },
     "localname": "TradingPricePer1000DollarPrincipalAmountLessThan98PercentMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_VitalSourceTechnologiesLLCVSTVsCheggMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "VitalSource Technologies LLC (VST) vs. Chegg",
        "label": "VitalSource Technologies LLC (VST) vs. Chegg [Member]",
        "terseLabel": "VitalSource Technologies LLC (VST) vs. Chegg"
       }
      }
     },
     "localname": "VitalSourceTechnologiesLLCVSTVsCheggMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "chgg_ZuoraIncMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Zuora, Inc.",
        "label": "Zuora, Inc. [Member]",
        "terseLabel": "Zuora, Inc."
       }
      }
     },
     "localname": "ZuoraIncMember",
     "nsuri": "http://www.chegg.com/20210331",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]",
        "terseLabel": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "dei_CurrentFiscalYearEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "End date of current fiscal year in the format --MM-DD.",
        "label": "Current Fiscal Year End Date",
        "terseLabel": "Current Fiscal Year End Date"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentFiscalPeriodFocus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.",
        "label": "Document Fiscal Period Focus",
        "terseLabel": "Document Fiscal Period Focus"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "fiscalPeriodItemType"
    },
    "dei_DocumentFiscalYearFocus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.",
        "label": "Document Fiscal Year Focus",
        "terseLabel": "Document Fiscal Year Focus"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentQuarterlyReport": {
     "auth_ref": [
      "r485"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an quarterly report.",
        "label": "Document Quarterly Report",
        "terseLabel": "Document Quarterly Report"
       }
      }
     },
     "localname": "DocumentQuarterlyReport",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r486"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report",
        "terseLabel": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
        "label": "Entity Common Stock, Shares Outstanding",
        "terseLabel": "Entity Common Stock, Shares Outstanding"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "sharesItemType"
    },
    "dei_EntityCurrentReportingStatus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Current Reporting Status",
        "terseLabel": "Entity Current Reporting Status"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Filer Category",
        "terseLabel": "Entity Filer Category"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "filerCategoryItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r488"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).",
        "label": "Entity Interactive Data Current",
        "terseLabel": "Entity Interactive Data Current"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
        "label": "Entity Shell Company",
        "terseLabel": "Entity Shell Company"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business",
        "terseLabel": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r483"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r484"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CoverPage"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "srt_ChiefExecutiveOfficerMember": {
     "auth_ref": [
      "r173"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Chief Executive Officer [Member]",
        "terseLabel": "Chief Executive Officer"
       }
      }
     },
     "localname": "ChiefExecutiveOfficerMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_CounterpartyNameAxis": {
     "auth_ref": [
      "r51",
      "r111"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Counterparty Name [Axis]",
        "terseLabel": "Counterparty Name [Axis]"
       }
      }
     },
     "localname": "CounterpartyNameAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember": {
     "auth_ref": [
      "r120",
      "r127",
      "r194",
      "r308",
      "r309",
      "r310",
      "r321",
      "r322"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cumulative Effect, Period of Adoption, Adjustment [Member]",
        "terseLabel": "Cumulative Effect, Period of Adoption, Adjustment"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionAdjustmentMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_CumulativeEffectPeriodOfAdoptionAxis": {
     "auth_ref": [
      "r120",
      "r127",
      "r194",
      "r308",
      "r309",
      "r310",
      "r321",
      "r322"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cumulative Effect, Period of Adoption [Axis]",
        "terseLabel": "Cumulative Effect, Period of Adoption [Axis]"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CumulativeEffectPeriodOfAdoptionDomain": {
     "auth_ref": [
      "r120",
      "r127",
      "r194",
      "r308",
      "r309",
      "r310",
      "r321",
      "r322"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cumulative Effect, Period of Adoption [Domain]",
        "terseLabel": "Cumulative Effect, Period of Adoption [Domain]"
       }
      }
     },
     "localname": "CumulativeEffectPeriodOfAdoptionDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_EquityMethodInvesteeNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investment, Name [Domain]",
        "terseLabel": "Investment, Name [Domain]"
       }
      }
     },
     "localname": "EquityMethodInvesteeNameDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_LitigationCaseAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Litigation Case [Axis]",
        "terseLabel": "Litigation Case [Axis]"
       }
      }
     },
     "localname": "LitigationCaseAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_LitigationCaseTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Litigation Case [Domain]",
        "terseLabel": "Litigation Case [Domain]"
       }
      }
     },
     "localname": "LitigationCaseTypeDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [
      "r277",
      "r280",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r399",
      "r447",
      "r449"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [
      "r277",
      "r280",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r399",
      "r447",
      "r449"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ProductOrServiceAxis": {
     "auth_ref": [
      "r170",
      "r254",
      "r258",
      "r400",
      "r446",
      "r448"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Product and Service [Axis]",
        "terseLabel": "Product and Service [Axis]"
       }
      }
     },
     "localname": "ProductOrServiceAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ProductsAndServicesDomain": {
     "auth_ref": [
      "r170",
      "r254",
      "r258",
      "r400",
      "r446",
      "r448"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Product and Service [Domain]",
        "terseLabel": "Product and Service [Domain]"
       }
      }
     },
     "localname": "ProductsAndServicesDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [
      "r266",
      "r277",
      "r280",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r399",
      "r447",
      "r449"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Statistical Measurement [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [
      "r266",
      "r277",
      "r280",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r398",
      "r399",
      "r447",
      "r449"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Statistical Measurement [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RepurchaseAgreementCounterpartyNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Counterparty Name [Domain]",
        "terseLabel": "Counterparty Name [Domain]"
       }
      }
     },
     "localname": "RepurchaseAgreementCounterpartyNameDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RestatementAxis": {
     "auth_ref": [
      "r116",
      "r117",
      "r118",
      "r119",
      "r121",
      "r122",
      "r125",
      "r126",
      "r127",
      "r129",
      "r130",
      "r131",
      "r132",
      "r133",
      "r143",
      "r195",
      "r196",
      "r311",
      "r322",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revision of Prior Period [Axis]",
        "terseLabel": "Revision of Prior Period [Axis]"
       }
      }
     },
     "localname": "RestatementAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RestatementDomain": {
     "auth_ref": [
      "r116",
      "r117",
      "r118",
      "r119",
      "r121",
      "r122",
      "r125",
      "r126",
      "r127",
      "r129",
      "r130",
      "r131",
      "r132",
      "r133",
      "r143",
      "r195",
      "r196",
      "r311",
      "r322",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revision of Prior Period [Domain]",
        "terseLabel": "Revision of Prior Period [Domain]"
       }
      }
     },
     "localname": "RestatementDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RevisionOfPriorPeriodReclassificationAdjustmentMember": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revision of Prior Period, Reclassification, Adjustment [Member]",
        "terseLabel": "Revision of Prior Period, Reclassification, Adjustment"
       }
      }
     },
     "localname": "RevisionOfPriorPeriodReclassificationAdjustmentMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScenarioForecastMember": {
     "auth_ref": [
      "r278"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Forecast [Member]",
        "terseLabel": "Forecast"
       }
      }
     },
     "localname": "ScenarioForecastMember",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScenarioUnspecifiedDomain": {
     "auth_ref": [
      "r278"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Scenario [Domain]",
        "terseLabel": "Scenario [Domain]"
       }
      }
     },
     "localname": "ScenarioUnspecifiedDomain",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis": {
     "auth_ref": [
      "r189"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Investment, Name [Axis]",
        "terseLabel": "Investment, Name [Axis]"
       }
      }
     },
     "localname": "ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_StatementScenarioAxis": {
     "auth_ref": [
      "r212",
      "r278",
      "r389"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Scenario [Axis]",
        "terseLabel": "Scenario [Axis]"
       }
      }
     },
     "localname": "StatementScenarioAxis",
     "nsuri": "http://fasb.org/srt/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingStandardsUpdateExtensibleList": {
     "auth_ref": [
      "r121",
      "r122",
      "r123",
      "r124",
      "r191",
      "r192",
      "r193",
      "r194",
      "r195",
      "r196",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r321",
      "r322",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates amendment to accounting standards.",
        "label": "Accounting Standards Update [Extensible List]",
        "terseLabel": "Accounting standards update"
       }
      }
     },
     "localname": "AccountingStandardsUpdateExtensibleList",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "extensibleListItemType"
    },
    "us-gaap_AccountsPayableCurrent": {
     "auth_ref": [
      "r36"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accounts Payable, Current",
        "terseLabel": "Accounts payable"
       }
      }
     },
     "localname": "AccountsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsReceivableNetCurrent": {
     "auth_ref": [
      "r4",
      "r25",
      "r174",
      "r175"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 5.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.",
        "label": "Accounts Receivable, after Allowance for Credit Loss, Current",
        "terseLabel": "Accounts receivable, net of allowance of $169 and $153 at March\u00a031, 2021 and December\u00a031, 2020, respectively",
        "verboseLabel": "Accounts receivable, net"
       }
      }
     },
     "localname": "AccountsReceivableNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedLiabilitiesCurrent": {
     "auth_ref": [
      "r38"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 4.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accrued Liabilities, Current",
        "terseLabel": "Accrued liabilities"
       }
      }
     },
     "localname": "AccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r28",
      "r56",
      "r57",
      "r58",
      "r437",
      "r457",
      "r461"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 4.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "terseLabel": "Accumulated other comprehensive (loss) income"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r55",
      "r58",
      "r59",
      "r116",
      "r117",
      "r119",
      "r336",
      "r452",
      "r453"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "AOCI Attributable to Parent [Member]",
        "terseLabel": "Accumulated Other Comprehensive (Loss) Income"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r26"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 3.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
        "label": "Additional Paid in Capital, Common Stock",
        "terseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [
      "r116",
      "r117",
      "r119",
      "r308",
      "r309",
      "r310"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.",
        "label": "Additional Paid-in Capital [Member]",
        "terseLabel": "Additional Paid-In Capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": {
     "auth_ref": [
      "r121",
      "r122",
      "r123",
      "r124",
      "r191",
      "r192",
      "r193",
      "r194",
      "r195",
      "r196",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r319",
      "r320",
      "r321",
      "r322",
      "r401",
      "r402",
      "r403",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by amendment to accounting standards.",
        "label": "Accounting Standards Update [Axis]",
        "terseLabel": "Adjustments for New Accounting Pronouncements [Axis]"
       }
      }
     },
     "localname": "AdjustmentsForNewAccountingPronouncementsAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt": {
     "auth_ref": [
      "r228"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.",
        "label": "Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt",
        "terseLabel": "Equity component of convertible senior notes, net of issuance costs"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r281",
      "r283",
      "r314",
      "r315"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.",
        "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition",
        "terseLabel": "Share-based compensation expense"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Adjustments to reconcile net loss to net cash provided by operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AgencySecuritiesMember": {
     "auth_ref": [
      "r187"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Securities issued by government sponsored entities.",
        "label": "Agency Securities [Member]",
        "terseLabel": "Agency bonds"
       }
      }
     },
     "localname": "AgencySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AllocatedShareBasedCompensationExpense": {
     "auth_ref": [
      "r283",
      "r300",
      "r313"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "label": "Share-based Payment Arrangement, Expense",
        "verboseLabel": "Share-based compensation expense"
       }
      }
     },
     "localname": "AllocatedShareBasedCompensationExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent": {
     "auth_ref": [
      "r32",
      "r176",
      "r197"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of allowance for credit loss on accounts receivable, classified as current.",
        "label": "Accounts Receivable, Allowance for Credit Loss, Current",
        "terseLabel": "Allowance for doubtful accounts receivable, current"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfDebtDiscountPremium": {
     "auth_ref": [
      "r80",
      "r98",
      "r367"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_InterestExpenseDebt",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.",
        "label": "Amortization of Debt Discount (Premium)",
        "terseLabel": "Amortization of debt discount"
       }
      }
     },
     "localname": "AmortizationOfDebtDiscountPremium",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfFinancingCosts": {
     "auth_ref": [
      "r71",
      "r98",
      "r369"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_InterestExpenseDebt",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of amortization expense attributable to debt issuance costs.",
        "label": "Amortization of Debt Issuance Costs",
        "terseLabel": "Amortization of issuance costs"
       }
      }
     },
     "localname": "AmortizationOfFinancingCosts",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfFinancingCostsAndDiscounts": {
     "auth_ref": [
      "r98",
      "r369"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.",
        "label": "Amortization of Debt Issuance Costs and Discounts",
        "terseLabel": "Amortization of debt discount and issuance costs"
       }
      }
     },
     "localname": "AmortizationOfFinancingCostsAndDiscounts",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "terseLabel": "Total common stock equivalents (in shares)"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of antidilutive security.",
        "label": "Antidilutive Securities [Axis]",
        "terseLabel": "Antidilutive Securities [Axis]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails",
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]",
        "terseLabel": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesNameDomain": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.",
        "label": "Antidilutive Securities, Name [Domain]",
        "terseLabel": "Antidilutive Securities, Name [Domain]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails",
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r107",
      "r159",
      "r162",
      "r168",
      "r190",
      "r333",
      "r337",
      "r357",
      "r417",
      "r435"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets",
        "totalLabel": "Total assets"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets [Abstract]",
        "terseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r6",
      "r8",
      "r48",
      "r107",
      "r190",
      "r333",
      "r337",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Current",
        "totalLabel": "Total current assets"
       }
      }
     },
     "localname": "AssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets, Current [Abstract]",
        "terseLabel": "Current assets"
       }
      }
     },
     "localname": "AssetsCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsFairValueDisclosure": {
     "auth_ref": [
      "r341"
     ],
     "calculation": {
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Fair Value Disclosure",
        "totalLabel": "Total assets measured and recorded at fair value"
       }
      }
     },
     "localname": "AssetsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
     "auth_ref": [
      "r182"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax",
        "terseLabel": "Unrealized Gain"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
     "auth_ref": [
      "r183"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax",
        "negatedTerseLabel": "Unrealized Loss"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": {
     "auth_ref": [
      "r180",
      "r198"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale, Amortized Cost",
        "totalLabel": "Adjusted Cost"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails",
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": {
     "auth_ref": [
      "r185"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One",
        "terseLabel": "Due in 1 year or less, Cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "auth_ref": [
      "r184",
      "r185",
      "r430"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One",
        "terseLabel": "Due in 1 year or less, Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost": {
     "auth_ref": [
      "r186"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.",
        "label": "Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost",
        "terseLabel": "Investments not due at a single maturity date, Cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue": {
     "auth_ref": [
      "r186"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.",
        "label": "Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value",
        "terseLabel": "Investments not due at a single maturity date, Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtSecurities": {
     "auth_ref": [
      "r178",
      "r181",
      "r198",
      "r423"
     ],
     "calculation": {
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale",
        "terseLabel": "Fair Value",
        "totalLabel": "Total, Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsContractualMaturityDetails",
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r284",
      "r303"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]",
        "terseLabel": "Award Type"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis of Accounting, Policy [Policy Text Block]",
        "terseLabel": "Basis of Presentation"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BusinessAcquisitionAcquireeDomain": {
     "auth_ref": [
      "r276",
      "r279"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.",
        "label": "Business Acquisition, Acquiree [Domain]",
        "terseLabel": "Business Acquisition, Acquiree [Domain]"
       }
      }
     },
     "localname": "BusinessAcquisitionAcquireeDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BusinessAcquisitionAxis": {
     "auth_ref": [
      "r276",
      "r279",
      "r325",
      "r326"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by business combination or series of individually immaterial business combinations.",
        "label": "Business Acquisition [Axis]",
        "terseLabel": "Business Acquisition [Axis]"
       }
      }
     },
     "localname": "BusinessAcquisitionAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessAcquisitionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Business Acquisition [Line Items]",
        "terseLabel": "Business Acquisition [Line Items]"
       }
      }
     },
     "localname": "BusinessAcquisitionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessCombinationDisclosureTextBlock": {
     "auth_ref": [
      "r330"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).",
        "label": "Business Combination Disclosure [Text Block]",
        "terseLabel": "Acquisitions"
       }
      }
     },
     "localname": "BusinessCombinationDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/Acquisitions"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets": {
     "auth_ref": [
      "r328"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of assets acquired at the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets",
        "terseLabel": "Acquired assets"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles": {
     "auth_ref": [
      "r327",
      "r328"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of identifiable intangible assets recognized as of the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles",
        "terseLabel": "Intangible assets"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities": {
     "auth_ref": [
      "r328"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities assumed at the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities",
        "terseLabel": "Liabilities assumed"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Business Combinations [Abstract]",
        "terseLabel": "Business Combinations [Abstract]"
       }
      }
     },
     "localname": "BusinessCombinationsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock": {
     "auth_ref": [
      "r2",
      "r115",
      "r155"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for the business description and basis of presentation concepts.  Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity.  Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Business Description and Basis of Presentation [Text Block]",
        "terseLabel": "Background and Basis of Presentation"
       }
      }
     },
     "localname": "BusinessDescriptionAndBasisOfPresentationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CarryingReportedAmountFairValueDisclosureMember": {
     "auth_ref": [
      "r355",
      "r356"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measured as reported on the statement of financial position (balance sheet).",
        "label": "Reported Value Measurement [Member]",
        "terseLabel": "Carrying Amount"
       }
      }
     },
     "localname": "CarryingReportedAmountFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashAndCashEquivalentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash and Cash Equivalents [Abstract]",
        "terseLabel": "Cash and Cash Equivalents [Abstract]"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r3",
      "r33",
      "r100"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash and Cash Equivalents, at Carrying Value",
        "terseLabel": "Cash and cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of cash and cash equivalent balance.",
        "label": "Cash and Cash Equivalents [Axis]",
        "terseLabel": "Cash and Cash Equivalents [Axis]"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashAndCashEquivalentsFairValueDisclosure": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash and Cash Equivalents, Fair Value Disclosure",
        "terseLabel": "Cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash and Cash Equivalents [Member]",
        "terseLabel": "Cash and cash equivalents:"
       }
      }
     },
     "localname": "CashAndCashEquivalentsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r94",
      "r100",
      "r105"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "periodEndLabel": "Cash, cash equivalents and restricted cash, end of period",
        "periodStartLabel": "Cash, cash equivalents and restricted cash, beginning of period",
        "totalLabel": "Total cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]",
        "terseLabel": "Reconciliation of cash, cash equivalents and restricted cash:"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r94",
      "r358"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "totalLabel": "Net increase (decrease) in cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]",
        "terseLabel": "Non-cash investing and financing activities:"
       }
      }
     },
     "localname": "CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashFlowOperatingActivitiesLesseeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Cash Flow, Operating Activities, Lessee [Abstract]",
        "terseLabel": "Cash paid for amounts included in the measurement of lease liabilities:"
       }
      }
     },
     "localname": "CashFlowOperatingActivitiesLesseeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashMember": {
     "auth_ref": [
      "r13"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits.",
        "label": "Cash [Member]",
        "terseLabel": "Cash"
       }
      }
     },
     "localname": "CashMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommercialPaperMember": {
     "auth_ref": [
      "r225"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Unsecured promissory note (generally negotiable) that provides institutions with short-term funds.",
        "label": "Commercial Paper [Member]",
        "terseLabel": "Commercial paper"
       }
      }
     },
     "localname": "CommercialPaperMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r44",
      "r211",
      "r424",
      "r441"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.",
        "label": "Commitments and Contingencies",
        "terseLabel": "Commitments and contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Commitments and Contingencies Disclosure [Abstract]",
        "terseLabel": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r208",
      "r209",
      "r210",
      "r222"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]",
        "terseLabel": "Commitments and Contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [
      "r116",
      "r117"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common Stock, Par or Stated Value Per Share",
        "terseLabel": "Common stock, par value (in dollars per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common Stock, Shares Authorized",
        "terseLabel": "Common stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.",
        "label": "Common Stock, Shares, Issued",
        "terseLabel": "Common stock, shares issued (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r24",
      "r235"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common Stock, Shares, Outstanding",
        "periodEndLabel": "Ending balance (in shares)",
        "periodStartLabel": "Beginning balance (in shares)",
        "terseLabel": "Common stock, shares outstanding (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r24"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Common Stock, Value, Issued",
        "terseLabel": "Common stock, 0.001 par value 400,000,000 shares authorized; 141,317,066 and 129,343,524 shares issued and outstanding at March\u00a031, 2021 and December\u00a031, 2020, respectively"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r62",
      "r64",
      "r65",
      "r69",
      "r427",
      "r444"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
        "totalLabel": "Total comprehensive loss"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock": {
     "auth_ref": [
      "r245"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.",
        "label": "Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]",
        "terseLabel": "Schedule of Accounts Receivable"
       }
      }
     },
     "localname": "ContractWithCustomerAssetAndLiabilityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ContractWithCustomerAssetNetCurrent": {
     "auth_ref": [
      "r242",
      "r244",
      "r255"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.",
        "label": "Contract with Customer, Asset, after Allowance for Credit Loss, Current",
        "terseLabel": "Contract assets"
       }
      }
     },
     "localname": "ContractWithCustomerAssetNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityCurrent": {
     "auth_ref": [
      "r242",
      "r243",
      "r255"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.",
        "label": "Contract with Customer, Liability, Current",
        "terseLabel": "Deferred revenue"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityRevenueRecognized": {
     "auth_ref": [
      "r256"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.",
        "label": "Contract with Customer, Liability, Revenue Recognized",
        "terseLabel": "Contract with customer, liability, revenue recognized"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityRevenueRecognized",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CorporateBondSecuritiesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This category includes information about long-term debt securities that are issued by either a domestic or foreign corporate business entity with a date certain promise of repayment and a return to the holder for the time value of money (for example, variable or fixed interest, original issue discount).",
        "label": "Corporate Bond Securities [Member]",
        "terseLabel": "Corporate debt securities"
       }
      }
     },
     "localname": "CorporateBondSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CostOfRevenue": {
     "auth_ref": [
      "r76",
      "r107",
      "r190",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 1.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate cost of goods produced and sold and services rendered during the reporting period.",
        "label": "Cost of Revenue",
        "terseLabel": "Cost of revenues"
       }
      }
     },
     "localname": "CostOfRevenue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfSalesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing cost of sales.",
        "label": "Cost of Sales [Member]",
        "terseLabel": "Cost of revenues"
       }
      }
     },
     "localname": "CostOfSalesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtConversionConvertedInstrumentSharesIssued1": {
     "auth_ref": [
      "r102",
      "r104"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or payments in the period.",
        "label": "Debt Conversion, Converted Instrument, Shares Issued",
        "terseLabel": "Debt conversion, shares issued (in shares)"
       }
      }
     },
     "localname": "DebtConversionConvertedInstrumentSharesIssued1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_DebtConversionOriginalDebtAmount1": {
     "auth_ref": [
      "r102",
      "r104"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of the original debt being converted in a noncash (or part noncash) transaction. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.",
        "label": "Debt Conversion, Original Debt, Amount",
        "terseLabel": "Debt conversion, converted amount"
       }
      }
     },
     "localname": "DebtConversionOriginalDebtAmount1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Debt Disclosure [Abstract]",
        "terseLabel": "Debt Disclosure [Abstract]"
       }
      }
     },
     "localname": "DebtDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtDisclosureTextBlock": {
     "auth_ref": [
      "r234"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.",
        "label": "Debt Disclosure [Text Block]",
        "verboseLabel": "Convertible Senior Notes"
       }
      }
     },
     "localname": "DebtDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotes"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtInstrumentAxis": {
     "auth_ref": [
      "r18",
      "r20",
      "r21",
      "r418",
      "r419",
      "r432"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
        "label": "Debt Instrument [Axis]",
        "terseLabel": "Debt Instrument [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentConvertibleConversionPrice1": {
     "auth_ref": [
      "r230"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The price per share of the conversion feature embedded in the debt instrument.",
        "label": "Debt Instrument, Convertible, Conversion Price",
        "terseLabel": "Conversion price"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleConversionPrice1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_DebtInstrumentConvertibleConversionRatio1": {
     "auth_ref": [
      "r41",
      "r236",
      "r237",
      "r239"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.",
        "label": "Debt Instrument, Convertible, Conversion Ratio",
        "terseLabel": "Conversion ratio"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleConversionRatio1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.",
        "label": "Debt Instrument, Convertible, Threshold Consecutive Trading Days",
        "terseLabel": "Threshold consecutive trading days"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleThresholdConsecutiveTradingDays1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.",
        "label": "Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger",
        "terseLabel": "Threshold percentage of stock price trigger"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentConvertibleThresholdTradingDays": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.",
        "label": "Debt Instrument, Convertible, Threshold Trading Days",
        "terseLabel": "Threshold trading days"
       }
      }
     },
     "localname": "DebtInstrumentConvertibleThresholdTradingDays",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_DebtInstrumentFaceAmount": {
     "auth_ref": [
      "r368",
      "r371"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LongTermDebtFairValue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face (par) amount of debt instrument at time of issuance.",
        "label": "Debt Instrument, Face Amount",
        "terseLabel": "Face value",
        "verboseLabel": "Principal"
       }
      }
     },
     "localname": "DebtInstrumentFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentInterestRateStatedPercentage": {
     "auth_ref": [
      "r40"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.",
        "label": "Debt Instrument, Interest Rate, Stated Percentage",
        "terseLabel": "Interest rate, stated percentage"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateStatedPercentage",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Debt Instrument [Line Items]",
        "terseLabel": "Debt Instrument [Line Items]"
       }
      }
     },
     "localname": "DebtInstrumentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentNameDomain": {
     "auth_ref": [
      "r42"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
        "label": "Debt Instrument, Name [Domain]",
        "terseLabel": "Debt Instrument, Name [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentRepurchasedFaceAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face (par) amount of the original debt instrument that was repurchased.",
        "label": "Debt Instrument, Repurchased Face Amount",
        "terseLabel": "Repurchased principal amount"
       }
      }
     },
     "localname": "DebtInstrumentRepurchasedFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentTable": {
     "auth_ref": [
      "r42",
      "r112",
      "r236",
      "r238",
      "r239",
      "r240",
      "r367",
      "r368",
      "r371",
      "r431"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table]",
        "terseLabel": "Schedule of Long-term Debt Instruments [Table]"
       }
      }
     },
     "localname": "DebtInstrumentTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet": {
     "auth_ref": [
      "r367",
      "r368",
      "r369",
      "r370",
      "r371"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LongTermDebtFairValue",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt discount (premium).",
        "label": "Debt Instrument, Unamortized Discount (Premium), Net",
        "negatedTerseLabel": "Unamortized debt discount"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscountPremiumNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtPolicyTextBlock": {
     "auth_ref": [
      "r106",
      "r226"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy related to debt. Includes, but is not limited to, debt issuance costs, the effects of refinancings, method of amortizing debt issuance costs and original issue discount, and classifications of debt.",
        "label": "Debt, Policy [Policy Text Block]",
        "terseLabel": "Convertible Senior Notes, net"
       }
      }
     },
     "localname": "DebtPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleTable": {
     "auth_ref": [
      "r187"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-sale [Table]",
        "terseLabel": "Debt Securities, Available-for-sale [Table]"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DeferredFinanceCostsNet": {
     "auth_ref": [
      "r35",
      "r369"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LongTermDebtFairValue",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.",
        "label": "Debt Issuance Costs, Net",
        "negatedTerseLabel": "Unamortized issuance costs"
       }
      }
     },
     "localname": "DeferredFinanceCostsNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeGainLossOnDerivativeNet": {
     "auth_ref": [
      "r339"
     ],
     "calculation": {
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherNonoperatingIncomeExpense",
       "weight": 1.0
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 19.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.",
        "label": "Derivative, Gain (Loss) on Derivative, Net",
        "negatedTerseLabel": "Loss on change in fair value of derivative instruments, net",
        "terseLabel": "Loss on change in fair value of derivative instruments, net"
       }
      }
     },
     "localname": "DerivativeGainLossOnDerivativeNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilities": {
     "auth_ref": [
      "r49",
      "r50",
      "r354"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Liability",
        "terseLabel": "Derivative liability"
       }
      }
     },
     "localname": "DerivativeLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DisaggregationOfRevenueLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Disaggregation of Revenue [Line Items]",
        "terseLabel": "Disaggregation of Revenue [Line Items]"
       }
      }
     },
     "localname": "DisaggregationOfRevenueLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisaggregationOfRevenueTable": {
     "auth_ref": [
      "r254",
      "r258",
      "r259",
      "r260",
      "r261",
      "r262",
      "r263",
      "r264"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation of Revenue [Table]",
        "terseLabel": "Disaggregation of Revenue [Table]"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisaggregationOfRevenueTableTextBlock": {
     "auth_ref": [
      "r254"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation of Revenue [Table Text Block]",
        "terseLabel": "Disaggregation of Revenue"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r316"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement [Text Block]",
        "terseLabel": "Stockholders' Equity"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Share-based Payment Arrangement [Abstract]",
        "terseLabel": "Share-based Payment Arrangement [Abstract]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain": {
     "auth_ref": [
      "r276",
      "r279"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of disposal group.",
        "label": "Disposal Group Name [Domain]",
        "terseLabel": "Disposal Group Name [Domain]"
       }
      }
     },
     "localname": "DisposalGroupsIncludingDiscontinuedOperationsNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DueToOfficersOrStockholdersCurrent": {
     "auth_ref": [
      "r17",
      "r109",
      "r383",
      "r433",
      "r463"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amounts due to recorded owners or owners with a beneficial interest of more than 10 percent of the voting interests or officers of the company. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Due to Officers or Stockholders, Current",
        "terseLabel": "Due to related parties"
       }
      }
     },
     "localname": "DueToOfficersOrStockholdersCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Earnings Per Share [Abstract]"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasicAndDiluted": {
     "auth_ref": [
      "r138"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "label": "Earnings Per Share, Basic and Diluted",
        "terseLabel": "Net loss per share, basic and diluted (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasicAndDiluted",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareBasicLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]",
        "terseLabel": "Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]"
       }
      }
     },
     "localname": "EarningsPerShareBasicLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerSharePolicyTextBlock": {
     "auth_ref": [
      "r106",
      "r140",
      "r141"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.",
        "label": "Earnings Per Share, Policy [Policy Text Block]",
        "terseLabel": "Net Loss Per Share"
       }
      }
     },
     "localname": "EarningsPerSharePolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r140",
      "r141",
      "r142",
      "r145"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "Net Loss Per Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount": {
     "auth_ref": [
      "r301"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cost capitalized for award under share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Amount Capitalized",
        "terseLabel": "Share-based compensation expense capitalized"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]",
        "terseLabel": "Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": {
     "auth_ref": [
      "r302"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition",
        "terseLabel": "Weighted average vesting period for recognition of compensation expense"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions": {
     "auth_ref": [
      "r302"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount",
        "terseLabel": "Unrecognized compensation costs related to restricted stock units"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "An Employee Stock Purchase Plan is a tax-efficient means by which employees of a corporation can purchase the corporation's stock.",
        "label": "Employee Stock [Member]",
        "terseLabel": "Employee stock purchase plan"
       }
      }
     },
     "localname": "EmployeeStockMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r116",
      "r117",
      "r119",
      "r122",
      "r130",
      "r133",
      "r147",
      "r194",
      "r235",
      "r241",
      "r308",
      "r309",
      "r310",
      "r321",
      "r322",
      "r359",
      "r360",
      "r361",
      "r362",
      "r363",
      "r365",
      "r452",
      "r453",
      "r454"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.",
        "label": "Equity Component [Domain]",
        "terseLabel": "Equity Component [Domain]"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal": {
     "auth_ref": [
      "r72",
      "r73",
      "r98"
     ],
     "calculation": {
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherNonoperatingIncomeExpense",
       "weight": 1.0
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of gain (loss) on sale or disposal of an equity method investment.",
        "label": "Equity Method Investment, Realized Gain (Loss) on Disposal",
        "negatedLabel": "Gain on sale of strategic equity investment",
        "negatedTerseLabel": "Gain on sale of strategic equity investment",
        "terseLabel": "Gain on sale of strategic equity investment"
       }
      }
     },
     "localname": "EquityMethodInvestmentRealizedGainLossOnDisposal",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquityMethodInvestmentSoldCarryingAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the entity's equity method investment which has been sold.",
        "label": "Equity Method Investment, Amount Sold",
        "terseLabel": "Consideration received on sale"
       }
      }
     },
     "localname": "EquityMethodInvestmentSoldCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount": {
     "auth_ref": [
      "r188"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investment in equity security without readily determinable fair value.",
        "label": "Equity Securities without Readily Determinable Fair Value, Amount",
        "terseLabel": "Cost method investment"
       }
      }
     },
     "localname": "EquitySecuritiesWithoutReadilyDeterminableFairValueAmount",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Error Corrections and Prior Period Adjustments Restatement [Line Items]",
        "terseLabel": "Error Corrections and Prior Period Adjustments Restatement [Line Items]"
       }
      }
     },
     "localname": "ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EstimateOfFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r354"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measured as an estimate of fair value.",
        "label": "Estimate of Fair Value Measurement [Member]",
        "terseLabel": "Estimated Fair Value"
       }
      }
     },
     "localname": "EstimateOfFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]",
        "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r341",
      "r342",
      "r343",
      "r350"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.",
        "label": "Fair Value, Recurring and Nonrecurring [Table]",
        "terseLabel": "Fair Value, Recurring and Nonrecurring [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock": {
     "auth_ref": [
      "r341",
      "r342",
      "r344"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).",
        "label": "Fair Value Measurements, Nonrecurring [Table Text Block]",
        "terseLabel": "Fair Value Measurements, Nonrecurring"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnNonrecurringBasisTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": {
     "auth_ref": [
      "r347"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Class of asset.",
        "label": "Asset Class [Domain]",
        "terseLabel": "Asset Class [Domain]"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueByAssetClassAxis": {
     "auth_ref": [
      "r341",
      "r350"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by class of asset.",
        "label": "Asset Class [Axis]",
        "terseLabel": "Asset Class [Axis]"
       }
      }
     },
     "localname": "FairValueByAssetClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r267",
      "r268",
      "r269",
      "r270",
      "r271",
      "r272",
      "r273",
      "r275",
      "r342",
      "r390",
      "r391",
      "r392"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
        "label": "Fair Value Hierarchy and NAV [Axis]",
        "terseLabel": "Fair Value Hierarchy and NAV [Axis]"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementBasisAxis": {
     "auth_ref": [
      "r341",
      "r351"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by measurement basis.",
        "label": "Measurement Basis [Axis]",
        "terseLabel": "Measurement Basis [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementBasisAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "auth_ref": [
      "r341",
      "r342",
      "r345",
      "r346",
      "r352"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by measurement frequency.",
        "label": "Measurement Frequency [Axis]",
        "terseLabel": "Measurement Frequency [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementFrequencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosureItemAmountsDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.",
        "label": "Fair Value Measurement [Domain]",
        "terseLabel": "Fair Value Measurement [Domain]"
       }
      }
     },
     "localname": "FairValueDisclosureItemAmountsDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Disclosures [Abstract]",
        "terseLabel": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "localname": "FairValueDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresTextBlock": {
     "auth_ref": [
      "r349"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.",
        "label": "Fair Value Disclosures [Text Block]",
        "terseLabel": "Fair Value Measurement"
       }
      }
     },
     "localname": "FairValueDisclosuresTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurement"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "auth_ref": [
      "r267",
      "r268",
      "r273",
      "r275",
      "r342",
      "r390"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.",
        "label": "Fair Value, Inputs, Level 1 [Member]",
        "terseLabel": "Level 1"
       }
      }
     },
     "localname": "FairValueInputsLevel1Member",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r267",
      "r268",
      "r273",
      "r275",
      "r342",
      "r391"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.",
        "label": "Fair Value, Inputs, Level 2 [Member]",
        "terseLabel": "Level 2"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measurement frequency.",
        "label": "Measurement Frequency [Domain]",
        "terseLabel": "Measurement Frequency [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementFrequencyDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [
      "r267",
      "r268",
      "r269",
      "r270",
      "r271",
      "r272",
      "r273",
      "r275",
      "r390",
      "r391",
      "r392"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
        "label": "Fair Value Hierarchy and NAV [Domain]",
        "terseLabel": "Fair Value Hierarchy and NAV [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsNonrecurringMember": {
     "auth_ref": [
      "r341",
      "r342",
      "r345",
      "r346",
      "r348",
      "r352"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Infrequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, not frequently measured at fair value.",
        "label": "Fair Value, Nonrecurring [Member]",
        "terseLabel": "Fair Value, Measurements, Nonrecurring"
       }
      }
     },
     "localname": "FairValueMeasurementsNonrecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "auth_ref": [
      "r349",
      "r352"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.",
        "label": "Fair Value, Recurring [Member]",
        "terseLabel": "Fair Value, Measurements, Recurring"
       }
      }
     },
     "localname": "FairValueMeasurementsRecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_GainLossOnSaleOfDerivatives": {
     "auth_ref": [
      "r98",
      "r429"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.",
        "label": "Gain (Loss) on Sale of Derivatives",
        "terseLabel": "Gain (loss) in change in fair value"
       }
      }
     },
     "localname": "GainLossOnSaleOfDerivatives",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnSaleOfPropertyPlantEquipment": {
     "auth_ref": [
      "r98"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 16.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.",
        "label": "Gain (Loss) on Disposition of Property Plant Equipment",
        "negatedLabel": "Loss from write-off of property and equipment"
       }
      }
     },
     "localname": "GainLossOnSaleOfPropertyPlantEquipment",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainsLossesOnExtinguishmentOfDebt": {
     "auth_ref": [
      "r98",
      "r232",
      "r233"
     ],
     "calculation": {
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_OtherNonoperatingIncomeExpense",
       "weight": 1.0
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.",
        "label": "Gain (Loss) on Extinguishment of Debt",
        "negatedTerseLabel": "Loss on early extinguishment of debt",
        "terseLabel": "Loss on early extinguishment of debt"
       }
      }
     },
     "localname": "GainsLossesOnExtinguishmentOfDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r78"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
        "label": "General and Administrative Expense",
        "terseLabel": "General and administrative"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpenseMember": {
     "auth_ref": [
      "r70"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing general and administrative expense.",
        "label": "General and Administrative Expense [Member]",
        "terseLabel": "General and administrative"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Goodwill": {
     "auth_ref": [
      "r201",
      "r202",
      "r416"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill",
        "terseLabel": "Goodwill"
       }
      }
     },
     "localname": "Goodwill",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GrossProfit": {
     "auth_ref": [
      "r75",
      "r107",
      "r159",
      "r161",
      "r164",
      "r167",
      "r169",
      "r190",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.",
        "label": "Gross Profit",
        "totalLabel": "Gross profit"
       }
      }
     },
     "localname": "GrossProfit",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember": {
     "auth_ref": [
      "r382",
      "r383"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Family member whom a principal owner or a member of management might control or influence, or by whom they might be controlled or influenced, because of the family relationship.",
        "label": "Immediate Family Member of Management or Principal Owner [Member]",
        "terseLabel": "Immediate Family Member of Management or Principal Owner"
       }
      }
     },
     "localname": "ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": {
     "auth_ref": [
      "r113",
      "r159",
      "r161",
      "r164",
      "r167",
      "r169"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.",
        "label": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest",
        "totalLabel": "Loss before provision for income taxes"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Income Statement [Abstract]",
        "terseLabel": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis": {
     "auth_ref": [
      "r276",
      "r279"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by name of disposal group.",
        "label": "Disposal Group Name [Axis]",
        "terseLabel": "Disposal Group Name [Axis]"
       }
      }
     },
     "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r207"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location [Axis]"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location [Domain]"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r108",
      "r132",
      "r133",
      "r158",
      "r318",
      "r323",
      "r324",
      "r445"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Income Tax Expense (Benefit)",
        "terseLabel": "Provision for income taxes"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxesPaidNet": {
     "auth_ref": [
      "r101"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.",
        "label": "Income Taxes Paid, Net",
        "terseLabel": "Income taxes, net of refunds"
       }
      }
     },
     "localname": "IncomeTaxesPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayable": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.",
        "label": "Increase (Decrease) in Accounts Payable",
        "terseLabel": "Accounts payable"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsReceivable": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.",
        "label": "Increase (Decrease) in Accounts Receivable",
        "negatedLabel": "Accounts receivable"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsReceivable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccruedLiabilities": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.",
        "label": "Increase (Decrease) in Accrued Liabilities",
        "terseLabel": "Accrued liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccruedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInContractWithCustomerLiability": {
     "auth_ref": [
      "r97"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.",
        "label": "Increase (Decrease) in Contract with Customer, Liability",
        "terseLabel": "Change in deferred revenue"
       }
      }
     },
     "localname": "IncreaseDecreaseInContractWithCustomerLiability",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInDeferredRevenue": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.",
        "label": "Increase (Decrease) in Deferred Revenue",
        "terseLabel": "Deferred revenue"
       }
      }
     },
     "localname": "IncreaseDecreaseInDeferredRevenue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Increase (Decrease) in Operating Capital [Abstract]",
        "terseLabel": "Change in assets and liabilities, net of effect of acquisition of business:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingCapitalAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingAssets": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 15.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in operating assets classified as other.",
        "label": "Increase (Decrease) in Other Operating Assets",
        "negatedLabel": "Other assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherOperatingAssets",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingLiabilities": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in operating liabilities classified as other.",
        "label": "Increase (Decrease) in Other Operating Liabilities",
        "terseLabel": "Other liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherOperatingLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInPrepaidExpensesOther": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) of consideration paid in advance for other costs that provide economic benefits in future periods.",
        "label": "Increase (Decrease) in Prepaid Expenses, Other",
        "negatedLabel": "Prepaid expenses and other current assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInPrepaidExpensesOther",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]",
        "terseLabel": "Increase (Decrease) in Stockholders' Equity [Roll Forward]"
       }
      }
     },
     "localname": "IncreaseDecreaseInStockholdersEquityRollForward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IntangibleAssetsNetExcludingGoodwill": {
     "auth_ref": [
      "r203",
      "r204"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 4.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.",
        "label": "Intangible Assets, Net (Excluding Goodwill)",
        "terseLabel": "Intangible assets, net"
       }
      }
     },
     "localname": "IntangibleAssetsNetExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseDebt": {
     "auth_ref": [
      "r80",
      "r231"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the cost of borrowed funds accounted for as interest expense for debt.",
        "label": "Interest Expense, Debt",
        "totalLabel": "Total interest expense"
       }
      }
     },
     "localname": "InterestExpenseDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestExpenseDebtExcludingAmortization": {
     "auth_ref": [
      "r82"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_InterestExpenseDebt",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.",
        "label": "Interest Expense, Debt, Excluding Amortization",
        "terseLabel": "Contractual interest expense"
       }
      }
     },
     "localname": "InterestExpenseDebtExcludingAmortization",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeExpenseNet": {
     "auth_ref": [
      "r428"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 1.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net amount of operating interest income (expense).",
        "label": "Interest Income (Expense), Net",
        "verboseLabel": "Interest expense, net"
       }
      }
     },
     "localname": "InterestIncomeExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeExpenseNonoperatingNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_OtherNonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net amount of nonoperating interest income (expense).",
        "label": "Interest Income (Expense), Nonoperating, Net",
        "terseLabel": "Interest income"
       }
      }
     },
     "localname": "InterestIncomeExpenseNonoperatingNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r93",
      "r95",
      "r101"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.",
        "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities",
        "terseLabel": "Interest"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentTypeAxis": {
     "auth_ref": [
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r472",
      "r473",
      "r474",
      "r475",
      "r476",
      "r477",
      "r478",
      "r479",
      "r480"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of investments.",
        "label": "Investment Type [Axis]",
        "terseLabel": "Investment Type [Axis]"
       }
      }
     },
     "localname": "InvestmentTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "auth_ref": [
      "r466",
      "r467",
      "r468",
      "r469",
      "r470",
      "r471",
      "r472",
      "r473",
      "r474",
      "r475",
      "r476",
      "r477",
      "r478",
      "r479",
      "r480"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Asset obtained to generate income or appreciate in value.",
        "label": "Investments [Domain]",
        "terseLabel": "Investments [Domain]"
       }
      }
     },
     "localname": "InvestmentTypeCategorizationMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for cash, cash equivalents, investments in debt and equity instruments (including cost and equity investees and related income statement amounts), equity and cost method investments, investments in joint ventures and any other investment.",
        "label": "Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block]",
        "terseLabel": "Cash and Cash Equivalents, and Investment"
       }
      }
     },
     "localname": "InvestmentsInDebtAndEquityInstrumentsCashAndCashEquivalentsUnrealizedAndRealizedGainsLossesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestments"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r37",
      "r107",
      "r163",
      "r190",
      "r334",
      "r337",
      "r338",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
        "label": "Liabilities",
        "totalLabel": "Total liabilities"
       }
      }
     },
     "localname": "Liabilities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r31",
      "r107",
      "r190",
      "r357",
      "r420",
      "r439"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "label": "Liabilities and Equity",
        "totalLabel": "Total liabilities and stockholders' equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities and Equity [Abstract]",
        "terseLabel": "Liabilities and stockholders' equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r39",
      "r107",
      "r190",
      "r334",
      "r337",
      "r338",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "label": "Liabilities, Current",
        "totalLabel": "Total current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities, Current [Abstract]",
        "terseLabel": "Current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesNoncurrent": {
     "auth_ref": [
      "r10",
      "r11",
      "r12",
      "r21",
      "r22",
      "r107",
      "r190",
      "r334",
      "r337",
      "r338",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of obligation due after one year or beyond the normal operating cycle, if longer.",
        "label": "Liabilities, Noncurrent",
        "totalLabel": "Total long-term liabilities"
       }
      }
     },
     "localname": "LiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesNoncurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities, Noncurrent [Abstract]",
        "terseLabel": "Long-term liabilities"
       }
      }
     },
     "localname": "LiabilitiesNoncurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LitigationStatusAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by status of pending, threatened, or settled litigation.",
        "label": "Litigation Status [Axis]",
        "terseLabel": "Litigation Status [Axis]"
       }
      }
     },
     "localname": "LitigationStatusAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LitigationStatusDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Status of pending, threatened, or settled litigation.",
        "label": "Litigation Status [Domain]",
        "terseLabel": "Litigation Status [Domain]"
       }
      }
     },
     "localname": "LitigationStatusDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongTermDebt": {
     "auth_ref": [
      "r21",
      "r229",
      "r419",
      "r436"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt",
        "terseLabel": "Carrying amount"
       }
      }
     },
     "localname": "LongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtFairValue": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.",
        "label": "Long-term Debt, Fair Value",
        "terseLabel": "Convertible senior notes",
        "totalLabel": "Net carrying amount"
       }
      }
     },
     "localname": "LongTermDebtFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermInvestments": {
     "auth_ref": [
      "r34"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 6.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).",
        "label": "Long-term Investments",
        "terseLabel": "Long-term investments"
       }
      }
     },
     "localname": "LongTermInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongtermDebtTypeAxis": {
     "auth_ref": [
      "r42"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of long-term debt.",
        "label": "Long-term Debt, Type [Axis]",
        "terseLabel": "Long-term Debt, Type [Axis]"
       }
      }
     },
     "localname": "LongtermDebtTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongtermDebtTypeDomain": {
     "auth_ref": [
      "r42",
      "r227"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Long-term Debt, Type [Domain]",
        "terseLabel": "Long-term Debt, Type [Domain]"
       }
      }
     },
     "localname": "LongtermDebtTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LossContingenciesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Loss Contingencies [Line Items]",
        "terseLabel": "Loss Contingencies [Line Items]"
       }
      }
     },
     "localname": "LossContingenciesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingenciesTable": {
     "auth_ref": [
      "r211",
      "r212",
      "r213",
      "r216",
      "r217",
      "r218",
      "r221",
      "r223",
      "r224"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Discloses the specific components (such as the nature, name, and date) of the loss contingency and gives an estimate of the possible loss or range of loss, or states that a reasonable estimate cannot be made. Excludes environmental contingencies, warranties and unconditional purchase obligations.",
        "label": "Loss Contingencies [Table]",
        "terseLabel": "Loss Contingencies [Table]"
       }
      }
     },
     "localname": "LossContingenciesTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingencyDamagesSoughtValue": {
     "auth_ref": [
      "r211",
      "r214",
      "r219"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The value (monetary amount) of the award the plaintiff seeks in the legal matter.",
        "label": "Loss Contingency, Damages Sought, Value",
        "terseLabel": "Loss contingency, damages sought, value"
       }
      }
     },
     "localname": "LossContingencyDamagesSoughtValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LossContingencyEstimateOfPossibleLoss": {
     "auth_ref": [
      "r215",
      "r220",
      "r223"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.",
        "label": "Loss Contingency, Estimate of Possible Loss",
        "terseLabel": "Estimate of possible loss"
       }
      }
     },
     "localname": "LossContingencyEstimateOfPossibleLoss",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LossContingencyNewClaimsFiledNumber": {
     "auth_ref": [
      "r214"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The total number of new claims filed pertaining to a loss contingency during the period.",
        "label": "Loss Contingency, New Claims Filed, Number",
        "terseLabel": "Loss contingency, number of arbitration demands filed"
       }
      }
     },
     "localname": "LossContingencyNewClaimsFiledNumber",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_MoneyMarketFundsMember": {
     "auth_ref": [
      "r267"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid securities.",
        "label": "Money Market Funds [Member]",
        "terseLabel": "Money market funds"
       }
      }
     },
     "localname": "MoneyMarketFundsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r94"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "totalLabel": "Net cash provided by (used in) financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]",
        "terseLabel": "Cash flows from financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r94"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "totalLabel": "Net cash used in investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]",
        "terseLabel": "Cash flows from investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r94",
      "r96",
      "r99"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "totalLabel": "Net cash provided by operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Cash flows from operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r1",
      "r60",
      "r63",
      "r67",
      "r99",
      "r107",
      "r121",
      "r125",
      "r126",
      "r127",
      "r128",
      "r132",
      "r133",
      "r136",
      "r159",
      "r161",
      "r164",
      "r167",
      "r169",
      "r190",
      "r357",
      "r425",
      "r442"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS": {
       "order": 2.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net Income (Loss) Attributable to Parent",
        "terseLabel": "Net loss",
        "totalLabel": "Net loss"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY",
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Income (Loss) Attributable to Parent [Abstract]",
        "terseLabel": "Numerator:"
       }
      }
     },
     "localname": "NetIncomeLossAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.",
        "label": "New Accounting Pronouncements, Policy [Policy Text Block]",
        "terseLabel": "Recent Accounting Pronouncements"
       }
      }
     },
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1": {
     "auth_ref": [
      "r102",
      "r103",
      "r104"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.",
        "label": "Noncash or Part Noncash Acquisition, Fixed Assets Acquired",
        "terseLabel": "Accrued purchases of long-lived assets"
       }
      }
     },
     "localname": "NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpense": {
     "auth_ref": [
      "r79"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "label": "Nonoperating Income (Expense)",
        "totalLabel": "Total interest expense, net and other (expense) income, net"
       }
      }
     },
     "localname": "NonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nonoperating Income (Expense) [Abstract]",
        "terseLabel": "Interest expense, net and other (expense) income, net:"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.",
        "label": "Operating Expenses",
        "totalLabel": "Total operating expenses"
       }
      }
     },
     "localname": "OperatingExpenses",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingExpensesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Operating Expenses [Abstract]",
        "terseLabel": "Operating expenses:"
       }
      }
     },
     "localname": "OperatingExpensesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [
      "r159",
      "r161",
      "r164",
      "r167",
      "r169"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net result for the period of deducting operating expenses from operating revenues.",
        "label": "Operating Income (Loss)",
        "totalLabel": "Income from operations"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseCost": {
     "auth_ref": [
      "r375",
      "r377"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 14.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
        "label": "Operating Lease, Cost",
        "terseLabel": "Operating lease expense, net of accretion"
       }
      }
     },
     "localname": "OperatingLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLeaseIncome": {
     "auth_ref": [
      "r146",
      "r378",
      "r379"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.",
        "label": "Operating Lease, Lease Income",
        "terseLabel": "Operating lease income"
       }
      }
     },
     "localname": "OperatingLeaseLeaseIncome",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r373"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "label": "Operating Lease, Liability, Current",
        "negatedTerseLabel": "Current operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r373"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "label": "Operating Lease, Liability, Noncurrent",
        "terseLabel": "Long-term operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r374",
      "r376"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "label": "Operating Lease, Payments",
        "terseLabel": "Operating cash flows from operating leases"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r372"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 7.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "Operating Lease, Right-of-Use Asset",
        "terseLabel": "Right of use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]",
        "terseLabel": "Organization, Consolidation and Presentation of Financial Statements [Abstract]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherAssetsCurrent": {
     "auth_ref": [
      "r47"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of current assets classified as other.",
        "label": "Other Assets, Current",
        "terseLabel": "Other current assets"
       }
      }
     },
     "localname": "OtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r35"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 5.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncurrent assets classified as other.",
        "label": "Other Assets, Noncurrent",
        "terseLabel": "Other assets"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": {
     "auth_ref": [
      "r53",
      "r54",
      "r56"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.",
        "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax",
        "terseLabel": "Change in net unrealized loss on available for sale investments, net of tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax": {
     "auth_ref": [
      "r52"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax",
        "terseLabel": "Change in foreign currency translation adjustments, net of tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r61",
      "r64",
      "r66",
      "r68",
      "r235",
      "r359",
      "r364",
      "r365",
      "r426",
      "r443"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), Net of Tax",
        "totalLabel": "Other comprehensive loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": {
     "auth_ref": [
      "r61",
      "r64",
      "r331",
      "r332",
      "r335"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.",
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent",
        "terseLabel": "Other comprehensive loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]",
        "terseLabel": "Other comprehensive loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherDepreciationAndAmortization": {
     "auth_ref": [
      "r77",
      "r98",
      "r205"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 18.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.",
        "label": "Other Depreciation and Amortization",
        "terseLabel": "Other depreciation and amortization expense"
       }
      }
     },
     "localname": "OtherDepreciationAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesNoncurrent": {
     "auth_ref": [
      "r43"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Noncurrent",
        "terseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLongTermInvestmentsMember": {
     "auth_ref": [
      "r462"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Long-term investments classified as other.",
        "label": "Other Long-term Investments [Member]",
        "terseLabel": "Long-term investments:"
       }
      }
     },
     "localname": "OtherLongTermInvestmentsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherNoncashIncomeExpense": {
     "auth_ref": [
      "r99"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.",
        "label": "Other Noncash Income (Expense)",
        "negatedLabel": "Other non-cash items"
       }
      }
     },
     "localname": "OtherNoncashIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNonoperatingIncomeExpense": {
     "auth_ref": [
      "r81"
     ],
     "calculation": {
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 2.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.",
        "label": "Other Nonoperating Income (Expense)",
        "terseLabel": "Other (expense) income, net",
        "totalLabel": "Other (expense) income, net"
       }
      }
     },
     "localname": "OtherNonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationOtherIncomeExpensesDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDebtIssuanceCosts": {
     "auth_ref": [
      "r92"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_ProceedsFromDebtNetOfIssuanceCosts",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.",
        "label": "Payments of Debt Issuance Costs",
        "negatedTerseLabel": "Less other issuance costs"
       }
      }
     },
     "localname": "PaymentsOfDebtIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation": {
     "auth_ref": [
      "r90"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.",
        "label": "Payment, Tax Withholding, Share-based Payment Arrangement",
        "negatedLabel": "Payment of taxes related to the net share settlement of equity awards"
       }
      }
     },
     "localname": "PaymentsRelatedToTaxWithholdingForShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesGross": {
     "auth_ref": [
      "r86",
      "r329"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.",
        "label": "Payments to Acquire Businesses, Gross",
        "terseLabel": "Initial cash consideration"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesGross",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": {
     "auth_ref": [
      "r86"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.",
        "label": "Payments to Acquire Businesses, Net of Cash Acquired",
        "negatedLabel": "Acquisition of business, net of cash acquired"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireEquityMethodInvestments": {
     "auth_ref": [
      "r86"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.",
        "label": "Payments to Acquire Equity Method Investments",
        "negatedLabel": "Purchase of strategic equity investment"
       }
      }
     },
     "localname": "PaymentsToAcquireEquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireMarketableSecurities": {
     "auth_ref": [
      "r179"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow for purchase of marketable security.",
        "label": "Payments to Acquire Marketable Securities",
        "negatedLabel": "Purchases of investments"
       }
      }
     },
     "localname": "PaymentsToAcquireMarketableSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r87"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "label": "Payments to Acquire Property, Plant, and Equipment",
        "negatedLabel": "Purchases of property and equipment"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PendingLitigationMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Risk of loss associated with the outcome of pending litigation against the entity, for example, but not limited to, litigation in arbitration or within the trial process.",
        "label": "Pending Litigation [Member]",
        "terseLabel": "Pending Litigation"
       }
      }
     },
     "localname": "PendingLitigationMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CommitmentsandContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PortionAtFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r353"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measured at fair value for financial reporting purposes.",
        "label": "Portion at Fair Value Measurement [Member]",
        "terseLabel": "Portion at Fair Value Measurement"
       }
      }
     },
     "localname": "PortionAtFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.",
        "label": "Preferred Stock, Par or Stated Value Per Share",
        "terseLabel": "Preferred stock, par value (in dollars per share)"
       }
      }
     },
     "localname": "PreferredStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.",
        "label": "Preferred Stock, Shares Authorized",
        "terseLabel": "Preferred stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesIssued": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.",
        "label": "Preferred Stock, Shares Issued",
        "terseLabel": "Preferred stock, shares issued (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesOutstanding": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.",
        "label": "Preferred Stock, Shares Outstanding",
        "terseLabel": "Preferred stock, shares outstanding (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockValue": {
     "auth_ref": [
      "r23"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Preferred Stock, Value, Issued",
        "terseLabel": "Preferred stock, 0.001 par value\u00a0\u2013 10,000,000 shares authorized, no shares issued and outstanding"
       }
      }
     },
     "localname": "PreferredStockValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrepaidExpenseCurrent": {
     "auth_ref": [
      "r5",
      "r7",
      "r199",
      "r200"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.",
        "label": "Prepaid Expense, Current",
        "terseLabel": "Prepaid expenses"
       }
      }
     },
     "localname": "PrepaidExpenseCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromConvertibleDebt": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.",
        "label": "Proceeds from Convertible Debt",
        "terseLabel": "Proceeds from exercise of convertible senior notes capped call"
       }
      }
     },
     "localname": "ProceedsFromConvertibleDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromDebtNetOfIssuanceCosts": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.",
        "label": "Proceeds from Debt, Net of Issuance Costs",
        "terseLabel": "Proceeds from issuance of convertible senior notes, net of issuance costs",
        "totalLabel": "Net proceeds"
       }
      }
     },
     "localname": "ProceedsFromDebtNetOfIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfCommonStock": {
     "auth_ref": [
      "r88"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from the additional capital contribution to the entity.",
        "label": "Proceeds from Issuance of Common Stock",
        "terseLabel": "Proceeds from equity offering, net of offering costs"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfDebt": {
     "auth_ref": [
      "r89"
     ],
     "calculation": {
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_ProceedsFromDebtNetOfIssuanceCosts",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.",
        "label": "Proceeds from Issuance of Debt",
        "terseLabel": "Proceeds from issuance of debt"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities": {
     "auth_ref": [
      "r83",
      "r84",
      "r179"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Proceeds from Sale and Maturity of Debt Securities, Available-for-sale",
        "terseLabel": "Maturities of investments"
       }
      }
     },
     "localname": "ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfEquityMethodInvestments": {
     "auth_ref": [
      "r85"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.",
        "label": "Proceeds from Sale of Equity Method Investments",
        "terseLabel": "Proceeds from sale of strategic equity investment"
       }
      }
     },
     "localname": "ProceedsFromSaleOfEquityMethodInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r14",
      "r15",
      "r206",
      "r440"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment, Net",
        "terseLabel": "Property and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyDomain": {
     "auth_ref": [
      "r274",
      "r382",
      "r383"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Domain]",
        "terseLabel": "Related Party"
       }
      }
     },
     "localname": "RelatedPartyDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RelatedPartyTransactionAxis": {
     "auth_ref": [
      "r274",
      "r382",
      "r383",
      "r385"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of related party transaction.",
        "label": "Related Party Transaction [Axis]",
        "terseLabel": "Related Party Transaction [Axis]"
       }
      }
     },
     "localname": "RelatedPartyTransactionAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionDomain": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Transaction between related party.",
        "label": "Related Party Transaction [Domain]",
        "terseLabel": "Related Party Transaction [Domain]"
       }
      }
     },
     "localname": "RelatedPartyTransactionDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RelatedPartyTransactionDueFromToRelatedParty": {
     "auth_ref": [
      "r114",
      "r383"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.",
        "label": "Related Party Transaction, Due from (to) Related Party",
        "terseLabel": "Receivables from related party"
       }
      }
     },
     "localname": "RelatedPartyTransactionDueFromToRelatedParty",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty": {
     "auth_ref": [
      "r382"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.",
        "label": "Related Party Transaction, Expenses from Transactions with Related Party",
        "terseLabel": "Expenses from transactions with related party"
       }
      }
     },
     "localname": "RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyTransactionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Related Party Transaction [Line Items]",
        "terseLabel": "Related Party Transaction [Line Items]"
       }
      }
     },
     "localname": "RelatedPartyTransactionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.",
        "label": "Related Party Transaction, Purchases from Related Party",
        "terseLabel": "Purchases from related party"
       }
      }
     },
     "localname": "RelatedPartyTransactionPurchasesFromRelatedParty",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RelatedPartyTransactionsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Related Party Transactions [Abstract]",
        "terseLabel": "Related Party Transactions [Abstract]"
       }
      }
     },
     "localname": "RelatedPartyTransactionsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": {
     "auth_ref": [
      "r274",
      "r382",
      "r385",
      "r404",
      "r405",
      "r406",
      "r407",
      "r408",
      "r409",
      "r410",
      "r411",
      "r412",
      "r413",
      "r414",
      "r415"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Axis]",
        "terseLabel": "Related Party"
       }
      }
     },
     "localname": "RelatedPartyTransactionsByRelatedPartyAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsDisclosureTextBlock": {
     "auth_ref": [
      "r380",
      "r381",
      "r383",
      "r386",
      "r387"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Related Party Transactions Disclosure [Text Block]",
        "terseLabel": "Related-Party Transactions"
       }
      }
     },
     "localname": "RelatedPartyTransactionsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactions"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RepaymentsOfConvertibleDebt": {
     "auth_ref": [
      "r91"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.",
        "label": "Repayments of Convertible Debt",
        "negatedTerseLabel": "Repayment of convertible senior notes",
        "terseLabel": "Repayments of convertible senior notes"
       }
      }
     },
     "localname": "RepaymentsOfConvertibleDebt",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ResearchAndDevelopmentExpense": {
     "auth_ref": [
      "r317",
      "r482"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.",
        "label": "Research and Development Expense",
        "terseLabel": "Research and development"
       }
      }
     },
     "localname": "ResearchAndDevelopmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ResearchAndDevelopmentExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included.",
        "label": "Research and Development Expense [Member]",
        "terseLabel": "Research and development"
       }
      }
     },
     "localname": "ResearchAndDevelopmentExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r3",
      "r13",
      "r100",
      "r105"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Restricted Cash and Cash Equivalents, Current",
        "terseLabel": "Restricted cash included in other current assets"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Type of cash and cash equivalent. Cash is currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash and Cash Equivalents [Domain]",
        "terseLabel": "Cash and Cash Equivalents [Domain]"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalentsNoncurrent": {
     "auth_ref": [
      "r9",
      "r16",
      "r100",
      "r105",
      "r481"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Restricted Cash and Cash Equivalents, Noncurrent",
        "terseLabel": "Restricted cash included in other assets"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalentsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockUnitsRSUMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.",
        "label": "Restricted Stock Units (RSUs) [Member]",
        "terseLabel": "Restricted Stock Units (RSUs)"
       }
      }
     },
     "localname": "RestrictedStockUnitsRSUMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r27",
      "r241",
      "r311",
      "r438",
      "r456",
      "r461"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 5.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings (Accumulated Deficit)",
        "terseLabel": "Accumulated deficit"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [
      "r116",
      "r117",
      "r119",
      "r122",
      "r130",
      "r133",
      "r194",
      "r308",
      "r309",
      "r310",
      "r321",
      "r322",
      "r452",
      "r454"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Accumulated Deficit"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revenue from Contract with Customer [Abstract]",
        "terseLabel": "Revenue from Contract with Customer [Abstract]"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": {
     "auth_ref": [
      "r156",
      "r157",
      "r160",
      "r165",
      "r166",
      "r170",
      "r171",
      "r172",
      "r253",
      "r254",
      "r400"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 2.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.",
        "label": "Revenue from Contract with Customer, Excluding Assessed Tax",
        "terseLabel": "Net revenues",
        "verboseLabel": "Total net revenues"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerExcludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
      "http://www.chegg.com/role/RevenuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerTextBlock": {
     "auth_ref": [
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r251",
      "r252",
      "r257",
      "r265"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.",
        "label": "Revenue from Contract with Customer [Text Block]",
        "terseLabel": "Revenues"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/Revenues"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueFromRelatedParties": {
     "auth_ref": [
      "r74",
      "r464"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.",
        "label": "Revenue from Related Parties",
        "terseLabel": "Revenue from related parties"
       }
      }
     },
     "localname": "RevenueFromRelatedParties",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SaleOfStockConsiderationReceivedOnTransaction": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash received on stock transaction after deduction of issuance costs.",
        "label": "Sale of Stock, Consideration Received on Transaction",
        "terseLabel": "Proceeds from the Offering"
       }
      }
     },
     "localname": "SaleOfStockConsiderationReceivedOnTransaction",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SaleOfStockNameOfTransactionDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.",
        "label": "Sale of Stock [Domain]",
        "terseLabel": "Sale of Stock [Domain]"
       }
      }
     },
     "localname": "SaleOfStockNameOfTransactionDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.",
        "label": "Sale of Stock, Number of Shares Issued in Transaction",
        "terseLabel": "Number of shares issued and sold (in shares)"
       }
      }
     },
     "localname": "SaleOfStockNumberOfSharesIssuedInTransaction",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SaleOfStockPricePerShare": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.",
        "label": "Sale of Stock, Price Per Share",
        "terseLabel": "Offering price per share (in dollars per share"
       }
      }
     },
     "localname": "SaleOfStockPricePerShare",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.",
        "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]",
        "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]"
       }
      }
     },
     "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": {
     "auth_ref": [
      "r140"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.",
        "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]",
        "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share"
       }
      }
     },
     "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Debt Securities, Available-for-sale [Line Items]",
        "terseLabel": "Debt Securities, Available-for-sale [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfAvailableForSaleSecuritiesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.",
        "label": "Schedule of Available-for-sale Securities Reconciliation [Table Text Block]",
        "terseLabel": "Schedule of Available-for-sale Securities Reconciliation"
       }
      }
     },
     "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": {
     "auth_ref": [
      "r325",
      "r326"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.",
        "label": "Schedule of Business Acquisitions, by Acquisition [Table]",
        "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]"
       }
      }
     },
     "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/AcquisitionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the components of cash, cash equivalents, and investments.",
        "label": "Cash, Cash Equivalents and Investments [Table Text Block]",
        "terseLabel": "Cash, Cash Equivalents and Investments"
       }
      }
     },
     "localname": "ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDebtInstrumentsTextBlock": {
     "auth_ref": [
      "r42",
      "r112",
      "r236",
      "r238",
      "r239",
      "r240",
      "r367",
      "r368",
      "r371",
      "r431"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table Text Block]",
        "terseLabel": "Schedule of Long-term Debt Instruments"
       }
      }
     },
     "localname": "ScheduleOfDebtInstrumentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDebtTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.",
        "label": "Schedule of Debt [Table Text Block]",
        "terseLabel": "Schedule of Debt"
       }
      }
     },
     "localname": "ScheduleOfDebtTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r139"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.",
        "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
        "terseLabel": "Schedule of Earnings Per Share, Basic and Diluted"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable": {
     "auth_ref": [
      "r134",
      "r135",
      "r137",
      "r139",
      "r144"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The table contains disclosure pertaining to an entity's basic earnings per share.",
        "label": "Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]",
        "terseLabel": "Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table]"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicByCommonClassTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable": {
     "auth_ref": [
      "r283",
      "r299",
      "r313"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about amount recognized for award under share-based payment arrangement. Includes, but is not limited to, amount expensed in statement of income or comprehensive income, amount capitalized in statement of financial position, and corresponding reporting line item in financial statements.",
        "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]",
        "terseLabel": "Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]"
       }
      }
     },
     "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock": {
     "auth_ref": [
      "r283",
      "r299",
      "r313"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.",
        "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]",
        "terseLabel": "Stock-Based Compensation Expense for Employees and Non-Employees"
       }
      }
     },
     "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable": {
     "auth_ref": [
      "r118",
      "r125",
      "r126",
      "r129",
      "r130",
      "r132",
      "r133",
      "r143"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule of prior period adjustments to correct an error in previously issued financial statements. The disclosure may include, but is not limited to: (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustment (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. This table can be used to disclose the amounts as previously reported and the effect of the correction or other adjustment on per line item or per share amount basis. This table uses as its line items financial statement line items that are affected by prior period adjustments.",
        "label": "Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]",
        "terseLabel": "Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]"
       }
      }
     },
     "localname": "ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "auth_ref": [
      "r341",
      "r342"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).",
        "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]",
        "terseLabel": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis"
       }
      }
     },
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/FairValueMeasurementTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfInvestmentsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Schedule of Investments [Line Items]",
        "terseLabel": "Schedule of Investments [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfInvestmentsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfInvestmentsTable": {
     "auth_ref": [
      "r465"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A container table for all schedule of investment items. It ties in the \"Legal Entity [Axis]\" to all of its contained line items.",
        "label": "Schedule of Investments [Table]",
        "terseLabel": "Schedule of Investments [Table]"
       }
      }
     },
     "localname": "ScheduleOfInvestmentsTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsStrategicInvestmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.",
        "label": "Schedule of Other Nonoperating Income (Expense) [Table Text Block]",
        "terseLabel": "Schedule of Other Nonoperating Income (Expense)"
       }
      }
     },
     "localname": "ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable": {
     "auth_ref": [
      "r110",
      "r384",
      "r385"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule of quantitative and qualitative information pertaining to related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Schedule of Related Party Transactions, by Related Party [Table]",
        "terseLabel": "Schedule Of Related Party Transactions By Related Party [Table]"
       }
      }
     },
     "localname": "ScheduleOfRelatedPartyTransactionsByRelatedPartyTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/RelatedPartyTransactionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": {
     "auth_ref": [
      "r284",
      "r303"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about share-based payment arrangement.",
        "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]",
        "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock": {
     "auth_ref": [
      "r288"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.",
        "label": "Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]",
        "terseLabel": "Summary of Restricted Stock Unit Activity"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock": {
     "auth_ref": [
      "r294"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.",
        "label": "Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]",
        "terseLabel": "Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions"
       }
      }
     },
     "localname": "ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SellingAndMarketingExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate total amount of expenses directly related to the marketing or selling of products or services.",
        "label": "Selling and Marketing Expense",
        "terseLabel": "Sales and marketing"
       }
      }
     },
     "localname": "SellingAndMarketingExpense",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SellingAndMarketingExpenseMember": {
     "auth_ref": [
      "r70"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing selling and marketing expense.",
        "label": "Selling and Marketing Expense [Member]",
        "terseLabel": "Sales and marketing"
       }
      }
     },
     "localname": "SellingAndMarketingExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySharebasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SeniorLongTermNotes": {
     "auth_ref": [
      "r42"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.",
        "label": "Senior Notes, Noncurrent",
        "terseLabel": "Long-term portion of convertible senior notes, net"
       }
      }
     },
     "localname": "SeniorLongTermNotes",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SeniorNotesCurrent": {
     "auth_ref": [
      "r38"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.",
        "label": "Senior Notes, Current",
        "terseLabel": "Current portion of convertible senior notes, net"
       }
      }
     },
     "localname": "SeniorNotesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SeniorNotesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Bond that takes priority over other debt securities sold by the issuer. In the event the issuer goes bankrupt, senior debt holders receive priority for (must receive) repayment prior to (relative to) junior and unsecured (general) creditors.",
        "label": "Senior Notes [Member]",
        "terseLabel": "Senior Notes",
        "verboseLabel": "Shares related to convertible senior notes"
       }
      }
     },
     "localname": "SeniorNotesMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationConvertibleNotesDetails",
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesCappedCallDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesInterestExpenseRecognizedDetails",
      "http://www.chegg.com/role/ConvertibleSeniorNotesNetCarryingAmountDetails",
      "http://www.chegg.com/role/FairValueMeasurementDebtDetails",
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS": {
       "order": 17.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncash expense for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Noncash Expense",
        "terseLabel": "Share-based compensation expense"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": {
     "auth_ref": [
      "r285"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period",
        "terseLabel": "Vesting period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": {
     "auth_ref": [
      "r289"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period",
        "negatedLabel": "Number of RSUs and PSUs, Canceled (shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r293"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value",
        "terseLabel": "Weighted Average Grant Date Fair Value, Canceled (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r291"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period",
        "terseLabel": "Number of RSUs and PSUs, Granted (shares)",
        "verboseLabel": "Grants in period (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r291"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Weighted Average Grant Date Fair Value, Granted (in dollars per share)",
        "verboseLabel": "Grant date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
     "auth_ref": [
      "r290"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number",
        "periodEndLabel": "Number of RSUs and PSUs Outstanding, Ending (shares)",
        "periodStartLabel": "Number of RSUs and PSUs Outstanding, Beginning (shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]",
        "terseLabel": "Shares Outstanding"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r290"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value",
        "periodEndLabel": "Weighted Average Grant Date Fair Value, Ending balance (in dollars per share)",
        "periodStartLabel": "Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]",
        "terseLabel": "Weighted Average Grant\u00a0Date Fair Value"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": {
     "auth_ref": [
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period",
        "negatedLabel": "Number of RSUs and PSUs, Released (shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Weighted Average Grant Date Fair Value, Released (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": {
     "auth_ref": [
      "r297"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate",
        "terseLabel": "Dividend yield"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": {
     "auth_ref": [
      "r296"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate",
        "terseLabel": "Expected volatility"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": {
     "auth_ref": [
      "r298"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate",
        "terseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails",
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r282",
      "r286"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Award Type [Domain]",
        "terseLabel": "Equity Award"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithFinancialandStrategicPerformanceTargetsDetails",
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquityAdditionalInformationDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofRestrictedStockUnitActivityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationAwardTrancheOneMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "First portion of award under share-based payment arrangement differentiated by vesting feature, including, but not limited to, performance measure or service period.",
        "label": "Share-based Payment Arrangement, Tranche One [Member]",
        "terseLabel": "Threshold Level"
       }
      }
     },
     "localname": "ShareBasedCompensationAwardTrancheOneMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationAwardTrancheThreeMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Third portion of award under share-based payment arrangement differentiated by vesting feature, including, but not limited to, performance measure or service period.",
        "label": "Share-based Payment Arrangement, Tranche Three [Member]",
        "terseLabel": "Maximum Level"
       }
      }
     },
     "localname": "ShareBasedCompensationAwardTrancheThreeMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationAwardTrancheTwoMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Second portion of award under share-based payment arrangement differentiated by vesting feature, including, but not limited to, performance measure or service period.",
        "label": "Share-based Payment Arrangement, Tranche Two [Member]",
        "terseLabel": "Target Level"
       }
      }
     },
     "localname": "ShareBasedCompensationAwardTrancheTwoMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": {
     "auth_ref": [
      "r106",
      "r284",
      "r287"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.",
        "label": "Share-based Payment Arrangement [Policy Text Block]",
        "terseLabel": "Share-based Compensation Expense"
       }
      }
     },
     "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage": {
     "auth_ref": [
      "r285"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of vesting of award under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage",
        "terseLabel": "Vesting percentage"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": {
     "auth_ref": [
      "r295",
      "r312"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term",
        "terseLabel": "Expected term"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails",
      "http://www.chegg.com/role/StockholdersEquitySummaryofAssumptionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShortTermInvestments": {
     "auth_ref": [
      "r19",
      "r421",
      "r422",
      "r434"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.",
        "label": "Short-term Investments",
        "terseLabel": "Short-term investments"
       }
      }
     },
     "localname": "ShortTermInvestments",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
      "http://www.chegg.com/role/FairValueMeasurementFinancialInstrumentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShortTermInvestmentsMember": {
     "auth_ref": [
      "r477",
      "r478",
      "r479",
      "r480"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Investments which are not otherwise included in another category or item that the entity has the intent to sell or dispose of within one year from the date of the balance sheet.",
        "label": "Short-term Investments [Member]",
        "terseLabel": "Short-term investments:"
       }
      }
     },
     "localname": "ShortTermInvestmentsMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r46",
      "r116",
      "r117",
      "r119",
      "r122",
      "r130",
      "r133",
      "r147",
      "r194",
      "r235",
      "r241",
      "r308",
      "r309",
      "r310",
      "r321",
      "r322",
      "r359",
      "r360",
      "r361",
      "r362",
      "r363",
      "r365",
      "r452",
      "r453",
      "r454"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]",
        "terseLabel": "Equity Components [Axis]"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.",
        "label": "Statement [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Cash Flows [Abstract]",
        "terseLabel": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Financial Position [Abstract]",
        "terseLabel": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Comprehensive Income [Abstract]",
        "terseLabel": "Statement of Comprehensive Income [Abstract]"
       }
      }
     },
     "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]",
        "terseLabel": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [
      "r116",
      "r117",
      "r119",
      "r147",
      "r400"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
        "label": "Statement [Table]",
        "terseLabel": "Statement [Table]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r45",
      "r235",
      "r236",
      "r241"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period as a result of the conversion of convertible securities.",
        "label": "Stock Issued During Period, Shares, Conversion of Convertible Securities",
        "terseLabel": "Issuance of common stock upon conversion of 2023 convertible senior notes (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesNewIssues": {
     "auth_ref": [
      "r23",
      "r24",
      "r235",
      "r241"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of new stock issued during the period.",
        "label": "Stock Issued During Period, Shares, New Issues",
        "terseLabel": "Issuance of common stock in connection with equity offering, net of offering costs (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures": {
     "auth_ref": [
      "r23",
      "r24",
      "r235",
      "r241"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.",
        "label": "Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures",
        "terseLabel": "Net share settlement of equity awards (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r46",
      "r235",
      "r241"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The gross value of stock issued during the period upon the conversion of convertible securities.",
        "label": "Stock Issued During Period, Value, Conversion of Convertible Securities",
        "terseLabel": "Issuance of common stock upon conversions of 2023 notes"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueNewIssues": {
     "auth_ref": [
      "r23",
      "r24",
      "r235",
      "r241"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.",
        "label": "Stock Issued During Period, Value, New Issues",
        "terseLabel": "Issuance of common stock in connection with equity offering, net of offering costs"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures": {
     "auth_ref": [
      "r235",
      "r241"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.",
        "label": "Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures",
        "terseLabel": "Net share settlement of equity awards"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockOptionMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contracts conveying rights, but not obligations, to buy or sell a specific quantity of stock at a specified price during a specified period (an American option) or at a specified date (a European option).",
        "label": "Equity Option [Member]",
        "terseLabel": "Options to purchase common stock"
       }
      }
     },
     "localname": "StockOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails",
      "http://www.chegg.com/role/NetLossPerShareSharesExcludedFromComputationOfDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StockRepurchaseProgramAuthorizedAmount1": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of stock repurchase plan authorized.",
        "label": "Stock Repurchase Program, Authorized Amount",
        "terseLabel": "Stock repurchase program, authorized amount"
       }
      }
     },
     "localname": "StockRepurchaseProgramAuthorizedAmount1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount remaining of a stock repurchase plan authorized.",
        "label": "Stock Repurchase Program, Remaining Authorized Repurchase Amount",
        "terseLabel": "Remaining under repurchase program"
       }
      }
     },
     "localname": "StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquitySecuritiesRepurchaseProgramDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r24",
      "r29",
      "r30",
      "r107",
      "r177",
      "r190",
      "r357"
     ],
     "calculation": {
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "label": "Stockholders' Equity Attributable to Parent",
        "periodEndLabel": "Beginning balance",
        "periodStartLabel": "Beginning balance",
        "terseLabel": "Equity",
        "totalLabel": "Total stockholders' equity"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Stockholders' Equity Attributable to Parent [Abstract]",
        "terseLabel": "Stockholders' equity:"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventMember": {
     "auth_ref": [
      "r366",
      "r388"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event [Member]",
        "terseLabel": "Subsequent Event"
       }
      }
     },
     "localname": "SubsequentEventMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventTypeAxis": {
     "auth_ref": [
      "r366",
      "r388"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Axis]",
        "terseLabel": "Subsequent Event Type [Axis]"
       }
      }
     },
     "localname": "SubsequentEventTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeDomain": {
     "auth_ref": [
      "r366",
      "r388"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Domain]",
        "terseLabel": "Subsequent Event Type [Domain]"
       }
      }
     },
     "localname": "SubsequentEventTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/ConvertibleSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsidiarySaleOfStockAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of sale of the entity's stock.",
        "label": "Sale of Stock [Axis]",
        "terseLabel": "Sale of Stock [Axis]"
       }
      }
     },
     "localname": "SubsidiarySaleOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquityEquityOfferingDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Supplemental Cash Flow Information [Abstract]",
        "terseLabel": "Supplemental cash flow data:"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TypeOfAdoptionMember": {
     "auth_ref": [
      "r121",
      "r122",
      "r123",
      "r124",
      "r191",
      "r192",
      "r193",
      "r194",
      "r195",
      "r196",
      "r304",
      "r305",
      "r306",
      "r307",
      "r308",
      "r309",
      "r310",
      "r311",
      "r319",
      "r320",
      "r321",
      "r322",
      "r401",
      "r402",
      "r403",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amendment to accounting standards.",
        "label": "Accounting Standards Update [Domain]",
        "terseLabel": "Type of Adoption [Domain]"
       }
      }
     },
     "localname": "TypeOfAdoptionMember",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationDetails",
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UnderlyingAssetClassAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by underlying asset class.",
        "label": "Underlying Asset Class [Axis]",
        "terseLabel": "Underlying Asset Class [Axis]"
       }
      }
     },
     "localname": "UnderlyingAssetClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_UnderlyingAssetClassDomain": {
     "auth_ref": [
      "r340"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Major types of referenced/underlying asset classes (for example, corporate debt, sovereign debt, and structured finance).",
        "label": "Underlying Asset Class [Domain]",
        "terseLabel": "Underlying Asset Class [Domain]"
       }
      }
     },
     "localname": "UnderlyingAssetClassDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CashandCashEquivalentsandInvestmentsScheduleofAvailableForSaleSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UseOfEstimates": {
     "auth_ref": [
      "r148",
      "r149",
      "r150",
      "r151",
      "r152",
      "r153",
      "r154"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.",
        "label": "Use of Estimates, Policy [Policy Text Block]",
        "terseLabel": "Use of Estimates"
       }
      }
     },
     "localname": "UseOfEstimates",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/BackgroundandBasisofPresentationPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_VestingAxis": {
     "auth_ref": [
      "r303"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by vesting schedule of award under share-based payment arrangement.",
        "label": "Vesting [Axis]",
        "terseLabel": "Vesting [Axis]"
       }
      }
     },
     "localname": "VestingAxis",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VestingDomain": {
     "auth_ref": [
      "r303"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Vesting schedule of award under share-based payment arrangement.",
        "label": "Vesting [Domain]",
        "terseLabel": "Vesting [Domain]"
       }
      }
     },
     "localname": "VestingDomain",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/StockholdersEquity2021PSUGrantswithMarketBasedConditionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).",
        "label": "Weighted Average Number of Shares Outstanding, Basic and Diluted",
        "terseLabel": "Weighted average shares used to compute net loss per share, basic and diluted"
       }
      }
     },
     "localname": "WeightedAverageNumberOfShareOutstandingBasicAndDiluted",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS",
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Weighted Average Number of Shares Outstanding, Diluted [Abstract]",
        "verboseLabel": "Denominator:"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2020-01-31",
     "presentation": [
      "http://www.chegg.com/role/NetLossPerShareComputationofBasicandDilutedNetLossPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    }
   },
   "unitCount": 7
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 201.5-02(24))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(k)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 201.5-02(25))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(k))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(iii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(e),(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(h)(1)(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(k)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21914-107793"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21930-107793"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "27",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e22044-107793"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21711-107793"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 201.5-02(26))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21728-107793"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(4)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1252-109256"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1278-109256"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=121640914&loc=SL77927221-108306"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70191-108054"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(14))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "275",
   "URI": "http://asc.fasb.org/topic&trid=2134479"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(17))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "31",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19)(a)(5))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "42",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4647-111522"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4531-111522"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(aa)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "320",
   "URI": "http://asc.fasb.org/topic&trid=2196928"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "321",
   "URI": "http://asc.fasb.org/extlink&oid=120269885&loc=SL75117539-209714"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(2))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)(3)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)(4)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "05",
   "SubTopic": "10",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "http://asc.fasb.org/topic&trid=2122149"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(20))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "((a)(1),(b))",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14394-108349"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14453-108349"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14472-108349"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(23))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12021-110248"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12053-110248"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=SL5988623-112600"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=51819886&loc=SL6014347-161799"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "50",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "50",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "470",
   "URI": "http://asc.fasb.org/topic&trid=2208564"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121556615&loc=SL49130533-203044"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "606",
   "URI": "http://asc.fasb.org/topic&trid=49130388"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(A)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(B)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(C)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(03)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(n)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(d)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(f)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(4))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "80",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121326096&loc=d3e4534-113899"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b),(f)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iv)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.D.2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.F)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11149-113907"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11178-113907"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "http://asc.fasb.org/topic&trid=2228938"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "730",
   "URI": "http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(4)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "740"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(3)",
   "Topic": "740"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I.7)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=120385591&loc=d3e38679-109324"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "37",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "805",
   "URI": "http://asc.fasb.org/topic&trid=2303972"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(1)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.12)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5708775-113959"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(1)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.17)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=d3e13220-108610"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13476-108611"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28567-108399"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121561866&loc=SL77919311-209978"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=121576215&loc=SL77919372-209981"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "850",
   "URI": "http://asc.fasb.org/topic&trid=2122745"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "910",
   "URI": "http://asc.fasb.org/extlink&oid=119991564&loc=SL119991595-234733"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.L)",
   "Topic": "924",
   "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "926",
   "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "926",
   "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "926",
   "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(5))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(1)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(2)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(10)(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(4))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(5))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(6))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(26))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.10)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.13(h))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(a)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120252992&loc=SL120269850-112803"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(17))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(1)(g))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(19))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(22))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(9))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(d)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121643868&loc=SL117782755-158439"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "29F",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117819544-158441"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-30)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(i)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(ii)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(iii)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(iv)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(h)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(h)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=121641442&loc=d3e19393-158473"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.6-04(12))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.6-07.1(c))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401555&loc=SL114874292-224272"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611133-123010"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.8)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611197-123010"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column B)(Footnote 2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=SL120429264-123010"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column C)(Footnote 2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=SL120429264-123010"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column B))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column C))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.9)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column D))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=120401592&loc=d3e611379-123010"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=120413173&loc=SL116631458-115580"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "985",
   "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756"
  },
  "r483": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r484": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r485": {
   "Name": "Form 10-Q",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "308",
   "Subsection": "a"
  },
  "r486": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1"
  },
  "r487": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r488": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724394-108580"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e557-108580"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=121640130&loc=d3e1436-108581"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(21))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(24))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6787-107765"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(4))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(8))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(7)(c))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(9)(a))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1(e))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1,2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.3)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6801-107765"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.8)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "8",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6812-107765"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>72
<FILENAME>0001364954-21-000048-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001364954-21-000048-xbrl.zip
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M(!^TPYN$KFR"HS]?C7[\\]7HUK;GS]_\Z?.36G]PW@[_6O)Y_[AMSE]W>]T
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MP"['&.4X^8K4_%K@>7+/WV2(J]Z7$#/MIS##2$V)OQGM4-J/C2)PT4QHH:D
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M,BK!N*$F(NZDQ=KA(")9I/3C/,EJ]L2*!HTY56!G4ZTX,\H1)9!V4@LJ*%N
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M#+B-F 6F;,"R*CXE$*F1\U+B$$LH' IVYX'=L6!0BC/N,$F"@:!<.,Z#XM&
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M;H!9K4'E^D8J%S@BGAN4\V&(:!)<=G17&,>+E$$%Q_/"\5@#22V5,(H"LKE
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M*-<I_%;HK=#;4V\@%WJ;A=[.)Y-'DN$D A%1HC>M=.[YHP%3'+645B5!G,.
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M.HHE:$&2[RR= FL$A^@DBB8*2FEN4Z91D_";O<H*A18*+10Z[V@DIX$YRK/
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MOQJAF:O]IE-S_N#-IN7UUY8F '-IIU<C,Q62FXKDKI6UJAJ$>J$ $:F ,1G
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MUL$7K^2@\XGZ16SV+I8FWQR]L8/!*5#T7]L=QY=A^1Z]%U\.NP=M^N[PRV&
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M)EI6SY@*'=#60OMPY:46VB<4VKFN0KF3C&F*M*02\609,MJ!Y')GA(^,<,M
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MSY*[,M(!JY:8"Y<6N-P C"AO:99\T3C(QHR+L0=/G9DPC9+Z!6CF\63KJ9,
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M0(F!,<\MD\@8SQ#!EAGF5((M\**CV6-)?(J<>FZY#EICHQD1+B9"A>"\RFZ
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M)HTUNJ?-7.YO5BFM;"<6BR+/>9,NVU/DNF@A3NJ)3JYM.-LMFA'9HEM,PT4
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MAV>7G3/  E^<^B#"J@Z*;AVP,R4TF00\=3)!F)B+LVGF9]IN]]Q<.PM,='(
M&C;H"W[<+6OIATYWG)\6)X":1U%L?:!G?YK1^(H7-\NKLEH.CRHI/%&UKZ1R
M<[J] J?E[;1X,4R["1MKS'HYC' ZF_F[.KUBX8Y PP=>!'R_L@5)_L.D[\A*
ML_\]>Z8X.X0M-O\^7<WL&>YFK)ZM9N/$ECPTA'VTV9C\4C1^&4Y *?/-<3\O
M3L=V9T0O%WE11$[ZX^Y$'$#SR#@TZJ#I<L+.?[.R<P/9;UBL"<DX75>Y;/MQ
M?UA(UV\%(\(0?I_6R2X.X!9NG)1^Q_-;K!OV,\6NO>6Z1F-/S1F$7B#KPL^#
MP;P8ZGY$#BR';\@F&.QOMGMB3X=K_SE?"+_30Q=H>''ZUTXRI?M,4MUBCN7A
M%1A&_4'!*+\5")^O@B'9J@RE 6()*NQ_W:R,J[6-HL5%EJR\;6?X_>__V(VK
MUO%*;>@6VLWCZM@?_4$,XV[<21>U[3\RX&SVPE8)-]5JY?$,&GC[Y*MT1 EC
M!6**,L1CBL@RHY$A5GGL@2G"JK;R*#QFH%B,#HH](ZLLXY&=JK*WVGRN[=LQ
M^7ZB-:U"]PX R75< N5=VW<HOL[UHS2$$.;631;N\)VF['$&JU]C1XB7UA%A
MM]!06Z6&^O:\AEJ5/@FOJK[Y+3L2U(7AKR#<<[4OJ,O<_,R1=G5,9:'OVA&\
M_3;<?AT-EB8&]T[J?<)!O@#6_4G@(Z'K5#P_&_^<:2=*\4,"/5]H3=&Z<NC#
M*X=.;79@L[(?;3ZIJ4Y*QOUL\C*:^_#;Z9?=;J>U]=>WG=W6:>OP_<G>X39O
M'_[QK7W8_M8Z>\MV/K__T=ZZ',V]L_M7=^?S]DGKZ+UHG6V?MK?^Z+0.]VGK
MS_>T1=^?P7S$ERT8\\5J\MX8QZ66R#HK$1>"(DUB0"%X2PCUR1*QMB%%DZC+
MX2YW+AA8H72,&HY>*APY%AF6C)N "??6:IH\E91)+[PCP=_4);N&HZ>&HWDR
M*8NP=M@*I(4AB.O@D+5&(R=9X-PK;Q59VQ!-=47U]PJAT<IIH=4;\*I<61.V
M*G;3XUBC#( A],?9O?Y?%368'S#$%[#LU:SQ<T=/SU;L]8\ZO?O[>FZ;?%R]
M9[P %GR@LW'A\&_R")2O_XV0PMOS3"KWY^*7'-0%X[;[<1H@,QY.@\SRZ6B\
MXA#TBCB="[$ K[SJ7TG)9ZSJ.5W;S7)IVT6X_TXJ0AYVY@%0%Z(?:K/F#F9-
M>]'+(IB.BNJ(2&0<\<@)&#C"(:8<=<$RPTA.)6.\R02M?&' NKKG0^1\">Z)
M6LXK)>=S]X7P*1@I0;"I$(A[89$U1J'@O 2A3S+BW)N3TB: >^7E?.4TL^H-
M>%6NK E;$W:UKJP)^[B$G5XRU71*0_097 F/Y8NKW! KRPI/Z0AYWIB5>_@P
M;NFGG81S7\<>+_&4^>X$J+:9]],SZ&G"R&-7F;HN+?PZ$P[7)MS-)]"[K6R^
ME>Z:S:_."[#0G$<Y$QMQ@B,R5#$DM(R!NT2BTFL;>/V*^B^W/X*^LW \LPNG
MAKD:YJZ'N0?ZM&J8>S*8.YW!''?,:DL3$DQXQ&ERR/+HD!*:^>B#9+F:#%['
M8G5A;N54ZNH->%6N?&CMW*?*,-[LC3K3$@(?HQ\/.J-.'+[]X;OC$,.[0?_H
MS3SM]')"\NM-/F[]R.5_6+!!.H.HUPYQ335RG"HD'1.:RRAH2BN7?#PO17$R
M.:]!%\[<^ZEQKC3(N2(5<9!+C93\TTC 0%<E+_\D9=E%;\?#28F,,"G+<?3S
MXA?G\YQ??C:S4FIULID%N_ZE=39SG<U<9S-7:D%6))OYMB%LCUY(Z.ZISDM]
MO5BGMQC %<6:,L417<_#OTA&.XQE_9]?R*\WA,JM,**N2NSN3]TC.T5IPV&.
M@#P> VS"TIW3S1[2L//6HODB Z.2Q=%(9J-2CLO$-;8B!,FI-8$G'6\1 'G>
MZ'J@J;59E.IY(<%0G^ :>.?NAX/VX2?6WGU_DL>VM_M7I[W;HE\.WY_L['[#
M[<--?-'%U-[=)WOTWX/VGV]I>]>3]M8?,*;N0>MHF[3.8,9;FV)G]SUM;7U(
MK<Y"T*-1U'(?*7(Z2<2IL4B3X)!WF@<C.7.<KVT(L:Q.07?9V%:E$=CK1@2"
MJ68N"$9)Y,D0K3SC5K*@DM6>\V6&2M9@\0Q@,8^<I%03PC%#Q'B%N H^MP8T
M*&A.=5+6R)B[ 3>Q6%9KP&>"BQ>@M56SMLY/<>>?CY_*NM(?X,.]5+37$IX>
M7"11BJ2D$MQK[:C&N0$781XK@MTRTU!JS'URS#U7^\,JXQSVB"I&$9?PPPH7
MD&7$2^8(8[D=*VT:7>>DO'"A9SAI'BG\X-PR;7WTQ&H.0F^2M+6BM>I"/U>T
MG&,T6!D129(A[JU!N?LB GCGD9M$0#U:VV!-1AYLE]4)*B_2 _;Q4C>$ZSHA
M/,07]N(QEUM,4S#4&Z%X4LH9V("YC=3"I\26FN];8^Y38V[[S8*B125FP;F(
MC"8<<>LDLL8R9+G'3' I?,R*EFYJ\N"LP.I56JNE?D'J,4Z884D==Y1S*K54
M)GC@"^>DU$;7FM:*2_U<TXK&D,"C04&RA$"[!JG7H'/92"@7Q+&@<=:TC*R^
MT+\ 36L%O59OCXZ[_=,8)U%?L_-&($:O47NQ?@JSRE!E(A%1<$.4)C&YQ)(H
M="Y)Z[/$ZF/IQP4-2@O*%?4:B:0<XIPPI!,&(S9PHCT7WG@)&M3E4/6JF:RU
MG^I!M5,TXUHZ#NHTXTPYITS"(->>^N#@YRVTIUJLGUVL%^JE.(!H"N80+*=&
MW$B,C,FG?I1930P6I*B7\N CO]H3=5]/U,JT'=CMCQ9Z.1;Z4FXH^AT$L^A'
M]^"HK*N3E_*D7G>0QE/6K:OA^LGA>C&BBV$74I "*4(DXDYPY&*@2#JIHB=8
M*9_ HJ5-ILERHS26('PKY 6K$:<R%?1JQ'D&Q)DKB(IY0S1E" O'$6?)(.V=
M1M%;0VT4S":\MJ&;C/,7#C@5U3#/9]PNOX"/7!>WZ6-\3;8%*^Z^3;;%<V2!
M-C:'Q3EI:%C7S_WACP?YZ+3L[S[M%%MF8,)EDRS,<#@>YEO".$[[S-O0/Y[F
M>6Y^_%3T2D=8-L:SKO9'_=!)';AK$$>#_O X^B*)L^QO?Z&3_,6LZ2O[FO^\
M?7F!<3?VC>9R[?'XYM(27$K2*9:@#>1O\/7&(Z=_;_>^Q^'H*%LBV[VMZ$:;
MO? 6K)/1Z79O.!J,BV_>V.$!_#W_\W9NN7SJ#2+P[5D,\-V'R<<_;:<WS)UF
MXK J">'MSF1K.?S&6O3?+MQ#]LZ^=%IGL!6<'71:6SFA^Z^CG2T/V\B_1ZVS
M%K^8$+ZSZ\]@##"^?P_;1]MG[3_?'>[\N0W;RA]'K:,]WL[;U>>]L];906J=
M;9-V;ACC!3$^IX%'BT EH,A::I#T,:F$'0U,E.H#\"_0,._Y.%"L#"<^.<.C
M$SJ(&#TFAL0D0K 7$\CSBA3!H\6'A;5I%G]=6-S+PG.AQ,#EYN<W#^;\X)V
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MW)B(M(L426\23<8JA556RS0E]/<:M&K0JD'K :"5O70U:-T3M,@<M%SDGDA
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M\YI._I*%_$*DY8R3KWZO]H0F'HGBF*NH=?* *RDR(UV2%+2__RX$>RY5!9C
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M%%-RU) X]N447B'&]-K.LO_>ZY_DIB815,D-&X,+T:^/M-^$3X;(I+P0C*K
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M2.B#==AQ@:S'&G'A/')*)02.<^18R)1RMP/2%'A9^;0U#M8XN )OO4@\^/Y
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MTFQD&6W\H]UM# ][(WBO,/CES65=F)G"8]L_:'<GJIU3+,>_R;I\)>.RJH@
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MQUDILZ[88S"[PPD*C04L?C_I#48@O"#,65L!WT$'!J-8,K@!AT>#(4@T+#@
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M\@GE<IMNYUR\O)F%96Y=XQ '-QTYJA02DN42R0P<][BVP7X@EY4\@'#:O%P
M=.!@=(?99H*- HK0R?06_@LFK]!1,&;]L9F%5>G:B;S-FM'&K1:T2"?X\>$J
M=YDWD&S9AZ4P:7%(0^R7IRZ*KRJ:1 GH*B@L]T:9J+VFTFJ+G:<\SJ6^#Q+H
M;? M>F%J^/Z"%_[=]OMG,$^O77YW-\7.[J?OV[M[YZVM3P1D628= 5P8DES:
M?+J>(Q<P\&+GI?562DOPVH9>OVG#=BS039#/P:A3G*<B3<]+1OZ<*927BSKM
M=+?: R#J^?NO55:./(9[P=@WV<[6P=G.YC[)^SV*$91\KL2  ?RT(PFEY)T0
MA@2<3U.(.;)R88\/8()!0'QGE.'IM!QW:?1*,. ?@'>Q.XB_Y,][Q^#$=.-P
M0N5S>")_& H:Y5!DY<\/X3\5P<]NULD8I*H80(ZK@<.3??A27N'$GN5+Q_=-
MC:']/HX#@)T/S55&MC_Z/1]C&+SK]XZSD[^3YLOQX-6*:VOK:RZD<PHF^CR+
M+D";D<DX03AB06'$31(HKQ*B(L&JX60YEVL;<OVF CA3#GE97(LPI4XNW9%@
M/<:&-"-?_OJW*KRTB-Q.;UCD=M:U[8?BU[:/3X""%5OM#VW_8/J P86K=]G;
MO3LKF/&KJ\@C4(]Q=+0Q $)00H&9)&02#'^!&\1OU=#[LU% W^[[T3&\6=?'
M0<6?3WLC(!LN7E"(B;<6X);@>!>2,7VW\O8SEQ[$+BAT9Q)?G E1PD#MV.),
M0IJ_[_S]80L1T\BD*1Z7":EXSG3N+)"FLQ(BW+WTFCV7:7^)OI_T,_N?>:VR
M"Y(CD^ L#"KY&%3D*(<VRIR QN6Y&+1!8NSEL,,DW@K:/ [SW'-QKH0HKE<W
M>O!&P-C?YG1=Y0PFL'YELM^46 G@Z&^3(B)ECW+FB^,M)#S]BG4@ZJ/AS5^9
M5R_F9X05"+\RK3-_YN$6"(T6[!V@NJ1*<A]E[GYAL#?6Q2B)DOO<K$V^=-B?
M5M$XB,@!:_\*;@*\X1O;.;5G@[5?+U?6:7?1E8F_.F<WSDQ*]YD9=8>)J3;R
M0L:?(EUO1MVL!.W2MM&NRE :H#Q@B/_G]@52:QNEDE96Q]][93]B\,]?[<:\
MQ7_,,-X/@W:MWC VQ/KR-Q(N4XD+7QX8KN^46/1@52J,[?QU01I.6UM_?FT=
M?R1?M@[A/G]V6L?_/MP^.N#;YU]9:]>3O$W_!<C ==*PB5OO/](O6W]_W7D/
MQ.'])[IW_/8,..PY$ K2.O]TWMKM?-T[^E>N,,9:!_O)4R>B2DA+H =<P4^&
M@0\4E& J ETPEE?D#^ VALW,V#CW.#A".#.:*VN<,X9')Y3*9W@HOEJ1;%JG
MIK$=;9[U;""N;7C?/49[Q0!4"W?[J"Z_A<0@/P1X<O(*."RVF)CD$M=>$@X"
MMI*5U( D'-IO$28X;YBW!X>%XL]LCQZV@3: %3UKC ;5MN'%CD6QNC.7CC=G
MIB&]=A<8U:@RWG8PKM@VN+DTVOUL[3A] N6LK)\YE?\!)M=ID'$7KP_=D]&P
MVK4>=2_JS?UWU,O_*<2H,");[2-5K*SB0E,>9 >#6%'#3MNZ=J>PX9OW5VZ:
MB&<U?_3Z_%V>M#3##L<3E'G=S S-F=>R'5AN6+ATONL,3YTPT+GSW6S$=O&I
M0QN<B"&PUVIO<?*W875H<TJL^_V>&QO89C7:D<M,?M@N20!%:4:=3J.T)QIS
MVKDZ\\)7FLW3E)E5&2]8M94P]M"JS8;!Z/BD\ATFF'1<F8&;!,(.9W#JM_%&
M:KG[>"/XDG,&[P=\LS@Y1Z-P4.V$]3-$MH_+LK[4M*&Y8EA62?TV:/@.S&Z9
MHV(CQP[\%1LP-1?MF:7+%P'TYRR23EE[$/OBBN=%J%02+I]=@W&*S,R=CZ>6
M?BGS_U3E::?[/44V-[OA/U/)'-.7L-/],V\=95^V9-:O5*W:G\ DZ<['?8\5
M-M@D)*(6B%O'D!4N(J!C1AHLC>/T&=2J?3>7#HVE.12HJH)3^2_#2WRJ6P(S
M8[FH$K*J*K2->05H\YVV@'X>N]B_]!$NV#I17WC,);T<Y^+EOT5_V&W_%YY<
M*>E8NTLFY21);EE5;A^IIBUX^NNX\O87+6HKZ3H3]ZL^>TN=6&'$HQ2UK0<K
M\9UO.^?8R42TP S$Q:]<K*IO=8S$K/@YDEO*^Q+Q/.O:7@X#/ZRV[2I5_[KZ
M]@^LV7S;\88[G5Y8;4F8>UQWZ5-QA[K0KV"NQ_&0>K:?<+;I'6;[4<W>BRA/
M5'EJ;^XEN?<H6[D:QF.^6#W >-RUI,LCSN;/5-.E&^,5F,^5T]0[3^<3@]XJ
ML<0[3N7O5[KFW _^GN&+/YP?+X.)U#-6S]ACX]3#;OZ:KUP2ZWTV9:VVKQV5
M?T@QL9=61&7>*[Z8,BC,&\:Y<,IIR2F-.H9DA<-<*QTT=4LH@Y*IQF8WY/^\
MG1*..<E4*U,'Y9Y;8.,Z*/\^WCYZ=YS'TOJ\=]K:_7BZ=[S-=[8VR<[66]*B
M;VGKN'6\=_[I_&H=E.WCO;/MSWO?6UN>?#G:)*VM?[7WSN%96Y_X]NXGMK>[
M1_?HEZ/6;BNU9AO74"<-M52@X)A&/'F-3&(&*>4(3R%A+.4JU@]\HLXT-3JM
MTKLM@DZ!<X>%8H0S[B+7R6BGN% 4:Y8<J]%I==%I6J5)<.PE(11%11+BV''D
M(E'("NTX5A@;JFMTJM%I)=YM 70*.G"9DX3R/PZPB?K,FY(/.MO=>#=T.H_]
M7@#TJ8'IB8")7 "3#]8S[1)BR5K$8W#(8(=1BAY3J84,3F1OOB0NKCPPK430
M\]GXO+_WCH]COV1JG=B3V*^;9-T$<S0R%R/ FR&22RX,EQ18&&%<"!LYK4G8
MJF+=;!<L%1.LE[0 ;A8#UK& C#4!$1I<DE8)FNS:AC%-JN0*]<>IFV M69N3
MMQBGH TS@G-++0T&#!]ECE)M?*I)RTHJ\M2;2C9((B-!V(@<ZS$"&0$NE7+8
M<LV53%8NC;34FKRZFNR5-80:+%.,7#.J/4G&8:P,R\6L0VV75U>=ISZ(%9*3
M:#FR+&6[;!+27DJD(A$N:>>2BL_&+J_$MMM*NQU_'?;Z0U0. \X4NWA0\MES
M>OW52(AZAO>HG?O:N7\,$J&M=R9B$2FQW*3HL&34,>ZDT20MA404R-L%Q)M7
M;*OF"[?SA9W97D))),=,LD@*K8#^8X&L\1HIXAT/(D6?PMJ&Q*+)Y"HUNJWI
M_Y(UU^9-!D,8Q1P<>1:,-H:$Q%AB4DMO'^;(UTK[<*6=^NS!1 %Z*Q&SP2+N
MB$5.<HRB=1I;I5SDK/;97X'2"DNYB,8YSB,7@3GLDG,&U#019],=E;8VMX^L
MN5/WW!CJHV<"*:9!<S61R(%_GMO,2Q4E9M+2YV-N5\(_?T9>1/\DE_;);3O<
M<*8#3MVC_L:N>DQ1J8"$LIAKQ'*#?50>7MEX:F@4-;ZM +[-9HYJ6*#(E4="
M\H X90Y9'A.2QC.EN .'(N,;P4VAKQ?E7[44B+K3_/V9B:(&1R\H89XG+VTP
M7',K7.(46"FIW8F?K;13=\(0+7Q0(* T[^4;G)"F26;'0E% 7AIR=Y?GDK=4
M*^W]S:TQ"H/F)N$\)PR#!V%M=" &+$D=EG%ZH];<AVONU)U(GJNDDD':\AR]
MHPQI6!^DA# \&.,Q]<_'W-;'%U?RRGIB5\4!?H9GE__3ZQXL:7_Z$4Y_O[)[
MU/&:.E[SW.,U&5!J_GA__KB]NYVY8Q6RV=PG,BJ3I$#4<X-XM!89JBE*5#'&
MJ I,"&"0BC8I?7#"6.W[K:[J/F[ IM;:)6CMV876!J*MM,P@'Y)%7&(*6DLP
MHM%X)YG4A(4Z8O,*M/8)(C:UZCY<=5M3@QNL#AP[C<"FYM/K8&NMI!)IQ[ 2
MWE$FS?,QN'5D826O?&T)NIL'L>O/&JXWI]94G2TT,1881R7!3B2F*7>4 U<
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M=LOG:;L?4#!]DVP?[!NMH^%>(4NQ!#^&<023#K8X1.*M%220'%/GZ^R:\6V
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MCSYP3J/!009'$\%6!:)IP0Y=8\>2Y>" [ >CH\0B]X(VX%D!(4 :3!<B">@
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MQ((,BEKL):>Y#P,(7/YW25T>5Z;-PBW=6VO JP%OR=N]->#]#,";MN\BN<0
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M%27,!2. V>4$W@;F5@[F3O>QYSPI0I"@"1S5Z#S25$GDL(V)6FD)PVLO]<,
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M[,AAH$(&;@@RFLNJSKR1+""!G5+6*2:(!"K(5(-N#;H]<W2CFFN3O'%)\!B
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MP>I>@HTK4[N^Z?_18.6J8N4]IV=>N77<P.AWP^A<5J8C@7O.47 ".+ T'-E
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M)F")*#/26 \.OQ+9GU3KXF*>4I:0NZSRW>A&L\IW6N7=S;?[(1"J%9'(<*;
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MGNS+(#C,-D4R&9XW[P+22B=@5SB?8!*$Y,I->/WBQMV$5A7YN(TP!$>P=P:
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M<YHQ$=8:H.I3K 7&ZA4>9895#768YRK%PD4+E<UBDQ<5R%(^5+@4^4 N#GL
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MH@O<UW)J&Q]M!3VQ/7W0J5%-U++,44]BP:;=->I-I*S0<HQ\9E;H':UVGDE
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MPHD=:+^#F &" 1JXX*+$B*M]\'R8LGGP.^4WHE40BD1DVX4_3$5F,?R?H-Q
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M9$./^=1W9&2#[ YA/X5\OD$9#GME@;@,;1),0 ?6! 4:/+[VV51C43@!_/]
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M?ERN]"U:[-H+VE?B1]W2:O::P:22;2H<C:^2;<J<;//4%8N7AQ.UT/DD9CS
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M@:>]$M84[@.5W5E8;N:S@K#B*A1'YW^<'A\8LE8H,-V(3VT+1#!ZD\G9 ><
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M/[[--)X6>C-JU=@OF2Z@M'B1E<(F>LL?$6"%Y[+@V79DGM^9I_#]+/ -:Q6
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M?OTLHC@N'FS\B-@/[-T&,+E6^<++MC+4%G#5:J1JDQD6()^^#'*U0'#PV.9
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MB;S^[[I7+!7UB)1*>"HC7"D[Z)W_7@7$S:57'YHED^>PB,YI\,2FOEV@N%"
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MNX)'Q2OZ2IGB,SC;'N6\Q*F )9+JMUCR&5_<G.(9^O33_P!02P,$%     @
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M$\Z?Z#^%+9>\4*71?T(BBMD@O.8J^B9='C8%NM::(?W.F-;4FFTS_SL78 W
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MB8[R]<X./S+(2SA853<FJJ3P=I[EY\OI<%RZEB_Z,,[S^L5OTL [F23X(K;
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M;6SLO5EW&TF2+OC>OR(G^W4\T_>E3E??H]12I7.5HD925MUYPC'?*$R!@ H
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M>Q@]OLXW4B>KQ[!VD.6NN,,?UHEP?PF3&5HO?_UQ.;],WWXYFR[3'\N7D]6
M?_UQD<XO;NV<'>BP=96[>/;'&)>>@"(P/I# $BX](2GB!:YDVEOJ%7=,FBIK
M_9VH>B3+'3FM=Y#G &WO(TYGJ5>(7]W"]&*U/S8"-=K*LNV3$CM1]6D&[$L5
MOH,(W;4WJR7ZP7AA+4+(+A-*+:!UHSBQ,2NT3F(2P<LH7)4[Z0'Y\%TJ]O'I
MT$;B%6APP_+Z=64SC[BE,@BK2,X^HW&$3HJC'(W>$*RDE G\4MD&_/5&KOB0
M7D$/&MJ?V7" >"MDONPY9KD"YUQP,:%+$K,-:$,)M(FMM@3MY0!&Y)ABE=?_
M3E2GP(/^Q%YA#7@6PN7%Y:04K-EWN'$%-#!GM(^<0/ ,R9L]<4Y3DD)PZ-2Z
MH&65:/3&"$^"*U7442$;YGU:XEQ3? GS*3KJBVM4B5NM-7%*4C2E$\Z=24^8
M%USP& #JN!F[X9P"(WH0=(\)+(OY<O1\S5 DY,N<4UBN#^#/\K,X6]W7KXPE
MIIE&71GB$\=ES21/($=-,G>*>92'S4V2;W&\&R3 G[8)T!30(W8UJ\B\QR6A
M";ZK%Z$)PA:N9R_L.(;_64>E+?C201\]&B$MD/)R4(XK&U$RH//E<B2>2HD_
M<NMMUKB<FE-@S!X/]:$0IHT:!B;*MQOEJRW2@!+:*8T;(Y5$%BDXQS(IU1.M
M\F"<;>+,]K,%;8$;SC*II=PVFU,7S53Q@Z]C#U[-YF_3[]^RAM_-9U/\-JRV
M[/6Q#_.K\"TTK5A$ISTS?+<""\1JCKNYIBRS*A=&K5 ^8O.FOE8J)'!_Q,]]
M(_@5K9M@JGFPO@O4<<[5*^IR5DD1%<Y6=F(3/' 3LR FAUQ"F#.!9!V)"CBU
MVD81JE0E&HX<]QRR'YD;;>3?(R?6^4#[JE,4G5%]A5!92JU@;I5:2R23B8#E
ME@1AK66,"^$:YF0U&6[X,Y+N:IE5E>E>B^._?MZ2T1O\L5)=Q&<?_O[JS=D_
M*]5#O'YZ_3J(NR>R54I/11=EU#[JK*4VS*L,41NMC':,!MN@_N&N*;70R"\0
M_G4^1R9%)-$OL!@O9OG=/"UP(5I%G1ZBAWN?V57Z[4!OR3P;ETR@AJ; 93;!
M6:X32]H+KSA3<M0&?H^27EF2BQKROGIR;:GOFL"M>I^4@_0Q*6ZD0H\GH_]C
M?8K@<7>S_%[9WYY*CQIX-YN,P[B.#JZ?75L+NR>QK8< *I42/B)$"=H L!BS
MUBJ(X".N.X=,IT=-O"B'_Y,JBM@\NK8>=DYA2PV):\&255K8))7W+B3(V>@L
MJ(V6ZGO5L!FD8UC,?#Z;/Y_-YRFL\@Z?3>.[^7@V7Y]GW+!;2^+-K?##E'P4
MH!G1VELBM1,$(ABBM%71&NOT=FII3^$S75!WSG+XG.90C*\W)9+ZS1C\>%(N
MP"[GJWAW+]$,LV")DTX3J=".]Z[4D!&,J6R,"'6";>^&=81KP<&8=2MCH3\%
MU3B)"V%^F>(&%BZD&V \&.J,]P1D+$>$4A+KA"?2:J>5%3K:*H58]R)Z2J3I
M1RW#%&1-(+0&5P(?H.1D)$K 2$T2C4$R!T'+>I5TCER0]7@,Z:B("@$II:-4
MO)RDL]Q4*C>$LCZ]1F_(J<A+6=G5&80& B7;QRD&T1D>K*E#I<[0A\JZ."+A
MAE7OL9,ZRK7:C0FLCD)Y<+%<[Q(A#2<2<,,&0$$FYR %73J7-4ET;G2?N37V
MT:Z7!M;ZK!_I]WSS?0/*YJ:V 9B^XVANH1@^9*:33G;KMH- JVN9N<"RI$ H
M309WU"Q*XJD@(@7F(G!(O(GW])"T>T=X2SWEMI%C[TK],EZ7#;RQ6KU/80*+
MQ3B/U^TK;\5'* N21XEN&$13 C&@5+IW)##/G(F.<=>CX@] .&SX2D>-SH94
M1X].<N.8+V%%YKJX8@$2XK.1^!S0DQ?2.^<5L]M%'$\TUO9XUD+O>CI.?&X3
MA'_&YQZJTO;AEH?HXSCQN0D@<TD#4:P<),KBVUE<D6T4W&5GLLI-F@P\>,9T
MC<^M3)@V:CAV?&[PN)AZ[8B7+!#I+:ZUW@C<5JW2Y<A(J"8UV9].?&XKY7:)
MSVVCF:/'YX*4,4J(1.IR$*V$(#XR3[37UHER@Q&K=.1Z'/&YQS&)ZFMRJ)C>
M)IC^C.GMJ,LF<9N'*&*HF%X:J$T>MW+#2^4A#X9X91R!H)/+6JB@JQ3U?:0Q
MO;USHXW\CQ/3ZYS(V6E)(K!RSYX\L2EQ(C-009,$K4\OIK>56MK']+:1:04K
MY>YB,=P%+B4$(C(3!5(@SD$FFENT]"W5+C7)5SR1>EO'M4+ZTU2%)GZ[*P8T
M ?5GC:ZVVFM4E.D0T0]6HRL!+JJEUD<R"I=4C0CMJN.D2J!R$C:F*D58'DN-
MKO[IT$;B->KSW%D\"+?10&,R1$ETSV74N" ZD4C@N!$RX&@ZU(F2>PPUFUII
MKE7-IC9BKV!Y["D)HZ66)DE+<'J42)O1K'9H5J?,@$7CO'95O)"'77NG"PMZ
M$'2%)>'-;'J^3/.+TI:SV-U7/A6@J0V*B-6-*(A 0'!-N ?);)*,\BJ%EW:!
M>:)F9F>]5.CLNXWIZJ5H@JJF>;D;UG'LR^YJNX<''60^P.IQA2X+$67D 1<Q
M76(SI2*66T>RQ4W-ABBTJ)*I,203[K$LAR)"&U'7B*%/4UP)W\Z6:;.?12N8
MM4!)D*7R?TZ.0"DAQ*.V@C,1$JM2]?46DN%MACY4M'W:T$F^ R2?WY=,MRH\
MN:XU^?*/TG8G+2KF(=XQ6NW4Q*83W<I6I"Y:QI)F/G*T$C3$<I;)53 6$MJ
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MS6?Q,BS/YA_2_,LXK,,/<\9U3P=%]*I<M 9-\!M.HE12@DJ2QB:.=J-V([L
M'"TVNS?-SGJ4<(^7SS?PE$)_5X@6FU).#4#UW=)J+YKANUAU5]1MK?<DY<$H
MH 2WAB$N(S3%==$4DBM)M-4@5&;!B-[ZXPVL^CO:40VD^3;"[3OBY'D)9]S@
MV?0)\4%&AW@B_A_Z0)832+A29II]E"$PZ4PCTW''PX?M"M63S&<]"JS_<+1_
M7X[G*?X*RS0?PV2#R250S')&N%*BV"^> '#<[IAB2CF#!DZSPZ<] SQZ1?8A
MN+[?QH]HQ?G9[%]OQGX.\Z^;8LDVX%J32IL[BT8I-XH NA)$IZ1SEM(KH(U4
MN?/QCUZ1W86V-ZJJOS2'MVGY9K8H'N*'3S#?2LIN%KJ^_8BNH>MW0MHNV!@9
MHU8FSI.748/E(N0L>,F)\-*FT1W@#I?2X9D0NQ_4L\0:Y$4H$1GN#<9G%J46
M H0I:9L@>% H3+4MMT[I$5O/*F7<+]=5%F>YE%X,,(TOQI/+98I;'^V04-%]
MT)ZUTG7:VQ4NK194Q)"E9Z5OM;.H.T^38$$%JO2V!@\8OF.7DZO*^INGKL;\
M=J*A,C<QTDRH@=6)!FYGE"D2@].XH1DK397;S;MA=3WA0DFN ]N*/)_YQ>I
M;N14=L"51DPEH4T*0WS4B2@A138&M'"BQEQWHCE"]X;^F+!]MM5=WA7J7GX'
M:J2%@J 8$'Q!T0A'HQO!E(!'*[-B5"F *D4$OD,QO-)[T,Q=NFXEU@KYP?],
MX_-/N'0^^Y+F<)[>7A9IG.45OQ=GE\M%Z6Y7XNPW,[=>*$=%0#/2(\M9Z?!K
M0D SD.D,"G=@5F6]:POTI):'JEH:F%4WX*XD].QZ^Q[EG%0JX00>9#GZR4"
M@25!:% THTGDJ^POA\$=GF%U:=""<SWIL +S=KZ$-^ Y%8T6J10"+HT././$
MRR"(*0VS-#I@>KM(5D5S[9A<JKA:]:F#"@E9-WHP[0+Z2^G/=3&;/I_ 8IU.
M/V+&&VD5D+ JY!!1&"[[LF4;K1T+Z*]4:6G8&NE0][P5R5-7.\>^^KW.%YDN
MQ[&\#N,OZ4,*EW-44UJL<[%37.=J7_NY.T3Q=?<#UD5L6!1H408B#'A\O="L
M]"9G?,=\,,DZ3VV5<L$5Y_0 VK75(.-V$M$#(46%;7DWLAOU^9K@JUFC[#Z
MQZE6]F 8T8BI'=5Y#-I%BTX\EVQ5ZPD-9*J)\];BQJ68\])QQJH4PSH.W>XI
MB?9HV=9&BS5JK"UGX5]GGXM4-A?6V9GDLR9!"D5DLI2 Y8EDQWA2P@6IJ\0
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M;O2FB0K;1P.D2I4:6 Z(@1*Q2)T@+N%WV<>D0(<0>)5VU<?BRCV>Q_!4::.
M2E<B>T_M%.ZE$>=)@BC%M2E%;#Y:8CW#I=4"3[Y*^M-0=VG-K(V^E=@H8N
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MPYDC:R7).D<TEY6UMDXQF7NAG0@[^E7!;9+H?GV4]^GSU;(6;[I1H!GZ2XX
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M&%HE\[(-R.$MG('Y=RODKI8&*\1CW,"Z*@?S+LU76$=1B:0,1_M/%7.0!T7
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MB4VJ<\4<$1RU<X!9)%9"-D+MY?B>W@CO/NHZ9H1W'UDWF>%VQV1:5_L'60[
M"GGV2M2AM#G6<A_'R29<]*;1;,/YC/">AX]QM'I&F/J^LY@N5#WKP=^]U-9M
MWO,A,A]O\#?'@)PE#L$6 RI&!72\,9!*19Z*K-O=3QT)APS^;@"$/J(>9?!W
M+D':7/=1H*>(WY4,,<H PG#'M2SD2;5Y)ISMX.]>*GIT\'<?^4Y3&E!OQ+A_
M:^Y*B(<M#NCR30W* WHSN%<@$)()DC/+<C&*91>Y%-H7M+9$U"'>52#0Y3N/
M,^6?20G+KT@.Z^K+(N$]SL_%YH/HO\[*6TS+]Y<U64Q>[V))O[>^NC&L,CHO
M".P9=,*ZNB@9B)[\:J-342P)(5V3@V!@/HX](7??A/EN0G8J/#=9DNZYAFRP
M5HCQ (ZY %DG:3V%'=$U69[3C;SQS](IT;A_"#=088. ;AB)_10^U7EAW\LC
MSJ-EBE=19702E"89^N0BZ.)LM D5CTV0V8B?YPWE.8"DA1OZ+68?AL%M_*ZQ
M%*:9@IAKU6X2$8+49-#2\,R4+4*T<65;<#/6H^&<T#X]+.;RFOC+)3FT6$=%
M;3[WUQV?VVFR+*) ,E9N D44%*%"J)N%.)<:LTM2)=T"Y@_0-'WN;S+ +-LH
MKL&A>P]IUW.D.Q#7,BOX('73) <'TV4WC!RAB-'18CT6LHL"PJNZ$D\%(E)&
M8"@L)D3IVH0_$Z#DD<3A-"#I(_\&X*B'Y5FI;3;?YE$'&5A2 M!$8E6*!"&P
M;2EM,E8SG9OL#[Q%R?CQPH":6@XIY@8QZUM<(WW@AU>7^35^P8OEI\KQ+J#>
MD6BSC4X@@G8U?6JS PJD.91L@L&(UMHFCPD=:'M*V!A:%4T>&RXN:I'J9?Y;
M6/T3K[Y/IMC1)Z4TDED+R#*"RD% B,9#2M:BELQQTV;<U2.$/26<#*J$!H_4
M?\5+7(4+HN]5_DAR7F_6'7S!/2)#L#PX!CK4J#*Z4"M]-%B>"]VCQF;3Y%#I
M1-U3@LOPZKBWMKSEHU9]B?KM]S_^6N?MKO^UN/JP!?\N(KS,F^\[9BGKL5\Y
M_#/7$2SOSY$U!!>NL+ L54'OF3,I>FNL53%%>\=[5[\OG[PW5LH8>/$%K.>B
MCKAQX(UQ()TL-D3MK6Z20IFN-W8[*NK;9W?XRHV2M\,S=U5R9^5=6+W'JU^K
MOW%67J4/"_Q2F^##OQ<?/W]\]85.CO>XU?QV3V&2S@I%<K"))5!(41#)78'+
MC),CXJ/7X3%+FX3RDVPTZH/J'T>(S1D70V\O&IO9'W^]?N@YZAP",E(/\0O*
M(R-%V0"I%%6<D2Y:-4NSN,W+BZ',&#M#EZ?W8K_..,7TN3J/[U:A;JIX';ZN
M.QP.S-?E9;4,%P4YE\HB.+,Y*Y1PRG+D0@]O'8>2^V( TR)@\-FW?3@DNR[+
MU<=PN9D4O5B2>08TTGH'M?F[WFQTJ0FK ;VSS(G@T_[*RR' >XN.%U0VTMG@
MLW+[D'[#1JX'DV^FE/^-M$N6](X M:YAV;DJ@GB* ESPIC9&T261H@*>C4[&
M*9>\&QZ%7<E[ >>X&AYPLN]17M#F9V>7WRZ &][-^KQX1C07#['4E?:.%7 U
MK\1\U%)ZYM-^#\+ /O%#U+T@=E3]W@:L/OHMXLZ"[-O\Q7W^-O_Z$]<U<?YV
M\?[#U7KGS)//<IXC-UEK <8:<L:SK5MXF0>1<['1&!NQR:MG$VZ>#<CG@XG;
M0#># /T0F6X3N=][;-=G5Q]P]>Y#N#S[M,G>;I.[OUSNO":/G&).ST%['D 5
M[B$8+VLAM7)*!IY0S"J'VI/!YVD.<T/.;0NQIV(A_\!Z-- EN@UP-S]\':[P
M35BL=FG0("5%LS7<J.QG.B^""@6XD5A,CMGNYP%/RX0>E<"+C9T$]FX;H1LU
MCTA,U%J\MU58YS*DI.L(AI3J>EOK,D1.+F5FKD0=8S2AP9O2'A7/!KCCZNLV
MT/QDI_U-)V]K5/P\)DNQ-;? $].@N$*(FF(:K:)6A"\LC=9X#,C$LX'NY BX
MX_GE^-61A\8LWT[^5Q2K?]S>&;6H)]$M\0Y7'_FY%5DQEAF89,@MPSK.WD4$
MJX2/@EG%L<UVB&8L/4^H3X^..X _8,O@L6-^E'!&6>G H2 3#L& UYEN)9VU
M+=RF[-JL[WV&\T2/ O,D&I]+!^"6_.M)--$5[SP1'S1%RRII!9%D!R(SZ:7*
MGJ3<9-S 32JF[_(;%0C[4P4.5DB+TOJ#!?&=C<O\VT6XO#%*KPM/33>+-6!J
MFL[!([#2UWD=2]&G N(B406%'$(RI3;O*C+Q$@#)N*-DVN8PS=J;V8#WD8;&
MF6.WCWX'WYWVO71D0_?ZSBKW78^$0RN#$ (,<^3Z.,_!,Q/!1HS22"M<Z%;D
MV>=;9QCQ-%?R<@P--6BFW&46MF;&>9***T!N+2@6=ME8&2P6FW7!-OW4-VAX
MWM[=H<IHT!&W(^7ZKNY 3$NG[ =JIO&F#M;-W3H^0K -G* ?B>+()3=80&A%
M1U+-,1(Y"8*0S)BBI'!-<G C:/D1MZ.-DOO(<SP/=W-DT:E&)]_9Y75/)4^.
M\VP81$77G<HL0##60,[.>1.="6K,Q^"[:!S?NSA"F]V<T:-5T< Q>)S4=_]:
M[D@-V:<DBX:$.0#=@*R2RNB/S$=9++.J30M]=QJ?-FH.4\4D9TVM'KZ&>/%*
M8RZ&(.[)PR87FR*\[ #1%":#8;C?9#,:;KY3^<21<Z Z!G0YUZNK\V]3!'Y/
M>!E6B^7F"F8$9,.1" JA^M)9$VG.@/&9>:XT\YW2*/0%-[!!?]K'Q;T4/,]P
M9!B%#-BDLB%H1\<?E^M/F!9E@7EG(%V(ZA&<=$/+?=2,&YP,I*EE*S$/>,,\
M3%SPDF,QB>XY.K44-Q&\8 B>LYBP<,]E%[]UCKJ_)V094_5]I-M(Y6^6*TQA
M?;6[JC1GWF>IP-/%5)LS)9UH-I.OPQB/7&&WR>>]]/TC">.Y!0/JY@YM'R'8
M :..2M';>J5M$"S)XQ%))S#T&^3R) XQ14<\N9A5,%J4+ANE.FGWV[<^W[O^
M,,$/V-#WC8CKR4X=R!CZ1K_Q_>/?X0=J8%^'1XAOX&/[)CG)V&!X+'7S,\'2
M*#I<LD6(+HLH(F?2=HGRYJ'%!V[C89781VH#*V_7Y[LC)":-=)=P2,[6&9\4
M$ 9-U%A+C@82%5BZ)'<ZJ>^';Q[WACU8]LLA!#?P5;J;:G'-3O;:T<4-NM16
M)\4\1%/GB0OA;.UZ+:5+@V@W#=[\YA/4X,&"N]<&FZ[-^OSQ8UA]798;%;/#
M;LMZX L:+,GJRL[>K$">D=Q5QQ17DO[QT<@4G&))9N-9$G?MQGK@JZ:?#.@S
M1\D*<%4<^?1:0RAD9QAY8)$9)(=_5AT>OPZU^*IE[7CMAY8H:K-_/8XY0O"&
M@Y7,6)V<P-CND>*EL^ 0;(_96= #'>.]MCTNV(<X^W-Y01]S0:?=VW"%YY8E
MEZ5AX(L0=<8RW8[:%!#91J4].2BCOK8,R=OSM(09X66*PMQ#6'R]^++(Y#IL
M&.0FV:CK^!<F$RC)(CC&+,5JW 65O,FVW>"4EIR]F,.D6&E0CC<H@V\7ZW^^
M62'^<GF%*UQ?;1CTJ#'QA%!TVK3B&W B!+#%>V<IZK'%S=X8[N+LQ1@FQ<J
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M*%J3J*"@U12_F0R>6T]QIA&&,8M133-K=BP)O%CT/"VZ)9!/,;_W>87KQZ5
M?HH3C&600D2H13;@BPJ@M%6:\9**Z;*!>D;FW(?]%UN>IRTW@_!I9A0?EX$0
M5B@=-=A0 XXL)*DQ.6 AE\0+5ZK1?((9,#^?*1%.96D4C^ $J4*A1?!H#8CH
M,E>&2QE>ID3,(>,WB<;G.24"F<[,I@3&D#"5U8EX00XF:BF]U(;^XV5*Q+!
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MN[8Y(EHCA1*=O-8'OF0VI3N'Z&+90)!]V_IV?UW_%<,:_^L__A]02P,$%
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M"!;$9UFX ZG[\;-SBCMTT8V)0>\RIF.NIZHAAJ7U]Y(T&FL[3N(0(6@;U7K
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MEICTH1\&H9:75CY;3",=O2L=[3IU,&V0FE61-2=R&5%>MB:U\<0 *#Q#[5-
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M#(XZ[MDYG($9:@U(1.%.#">J"V=4,7.Q>Z"Y+CMWV8R1_@^7 ^F2&+<EX1N
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M?K]ER>LJV](S_BRGL;)NE;#+=?PB]9(*J!^UP[P@@O@4$08)8B%$0GB0A%3
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M!<8^K*IUJ??-;W0N_3HG2WZS3:O_H@C)7] PC4,21#!4\26()QDD/&(0>TG
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M,RU?J6>,:Y1/-XYQ+LENLJG*M52&KW"9%^\+.9/A:MT<OWDXP:D?9Q#C0'6
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MDXI5:[(URL93>+QL6^?L(%SD8ET,[6NY6U= JEX#_>.Z^ F8;:*Y<K]Z89O
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MG'F(09Q1E1A#$4QCBF&"0D01I1'U4]N0"B/)<Z,T?6#(=RK;1U^8 6Y&2J/
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MNTE\#G3#+6.'4(Z]@7P9BO8;RH;0.-U>/B=SVLUF0P0.MIY-[W,8!59N>#?
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M)2XKU86P+OED6?')<"S,)@?W"(_,\#MPFU)04F?Y5:[S-5A#W-N,?(<%ZJR
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MY+.]9$3S45[\]YZQ3K1X_+A<_[E++J]K.>>R^&R:ALA="+0@$B=2?Y,RE#&
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M.OU,_H;93=[S4':F,_EAGG KN("]GF\!4D_M5;!G"YN@!"?8:G3JZ;ZX"5H
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M/+5\=8SNZ1H\+&F8"8:!2KBIZ:,(P"H2@%.5*L)53*-HH2<MMIYZ^-I"IQ]
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MV(W%X(J-%QX_<?7&;B-/*SE>N;YGF1I-+U]5>9Q?=BV\EYLR0GE!,Y;%BDE
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M&,D:(L]MC:[+G;HID3429UH*V=_KH]3"YWPE/VWE4[&@H6#2G(YB# 6 +(*
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MA4+'=Z_O;WWS^F_'WWNW@$F^>2L;F^_>[N*>NXG[%@9-0^)4QBJE1 "*DQ#
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M1(G#N_/M_9G:^[>V$"R,B56!DOTYU$00]:[R^N;S'O@U/TS9LT*E:2D/&ES
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M9U_?X*?%<CVQ(A:N,4&N'Y13'IS3""X::Q-'@:(,"(%;K]\+#:)_-!PCU4Z
M\1J7TT5^/L_/:%N>&&:*-;0G%L8S*)T5>,,BY(PRHL]:138@+&Z\?"]0R/Y!
M<;A$.X'$NV68KZ95\.>P%IF@ZQ.I,%KRH@0W$- ["#I()]!(>LZ0^\6M]^\%
M#-4_,(Z2Z\C8>#Y?3]=??YG.\+>SCQ&7$R8MC[3K@>6:<.TM@V"2 ^V\R QU
ML4X.@(G;[]T+"[I?+!PEQRXP\ ;?3ZL0YNO?PD><6(DJ5^='(H]DWR+1;W6
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M[%,42"$"5S98"M 'Q\8U O9#1\?IT6%$.S(^GA '></%++R?!,&=S2*#UKF
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M,7)7"II[Y$IJ0"5K 5@.$'PQ@%AX",FJ8-L4H#=A9^0*T<Z7QXE@TOEBN68
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M!UBY9Y;:.3/>)Y_1:LAE4U\H'41G'/ L4K"RD*O9Q.8\2-6X>;'A,32<"GK
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M3KK"!'WX_X\ #TI GAZJ)SP?? QNNEU"U\X9HLPRQV0A:%?OI]8;^BS:.G1
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M'7CP#SG:G-8[7I@KQ3FRR:BU D7TDZBLA:!DCKR6XJ8F;Q3/$37_5-2FF#I
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MCH"IPS4P/\1&K@BKV1:1@H9D:@EU*AZ"<+$.)B&SKH5-@[?[-5C.=OP]6@=
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MZGF$MCH XMBAP9(%OIG4SNI@(.4Y0M!:DNN!R:)%96,3$_CZ1CT? LB66NL
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M@(R1\?RH&5F(D*(.LI0$&#C=Y9Q,<VV$(3:3-]G$[!]WZK[N$I #L-10\AW
M:E0I HO&!QTS2*$EJ&P#.)\<2"M$4%$QQ8?-0'P=)2"'@*J9W+MSC^Z>Y6-D
M.CAM(1912%Z>Y&6U!Z<\2EF8L_X(^Q[>CBH!.6J[SW1>]7Y"[P [CY[K*U<_
M_9'.K_/-G*N:*+X9DATXG3[F)!T^M:F_*N"3"<"2-L(PC=DT&:TSE,">G*H]
MT; \@FHZ@-Q]VF]6<#XJ1#A3=40!9@O<IU!?1B0X&Q48)I*76EG[>)3T-%A[
MD;*>O*UI0#:M,KI#UTUA AV836G"F1<N%!W)642/)"FZV+V@F%A;S[40)"G1
MQ(@]1U1/UV(+3!V@@@[@M,,(GR$= L5=!FY%92$4B#$C%%:B\-9($9KD0G;0
MTF<]R,2WWBB!GU UR-V<]LG+/[[_Z5;U'B\PT;C (T9GG.:$!%G+A$I=,F7J
MH/N,7##KD#=;*7N< H^DA5-H+9@89(UY+03+!.B(V4DZ6H&;5AR>1(''" 0,
M*? 8(^^YGY,>T5_'3I-(JC[JTW]0J)2.'D*ITTHP>S+"J"![23>P-$$D]Y)Q
M>?DS\X/B( T^/=+[$'%V"XSM0YKR1:8L,QCNB9?(+7@Z+\!+5B8E$M+CM-E8
M:,R9#IM:F8,PLH=DYT;)W<U]V_GFN3?1*K!.>% B:XKTN*1(3Q%+AN%06#S^
MY1YQL(_"EE-)KX/ 9D>RF+EB><X&I$=RVS/%_)[D ))E0?P(K4RS;2:]%V#L
M<ZM,).KNP'(O)8,R*V<217H\$>B#-^#J@WHHQI)9M<Z79@[X211@C%+TT *,
M,5*?^Y895AQ@G,@H=((<50!5N  72%8VH+',.<>Y'G3UG'(!QBBUCB_ &"/C
M^5$SL@R@I)PY6@Z629*=]1$<+QP4]TG03<Z]'Q;MO)("C .PU%#R'<!J7"%
M5K7O.@!/*H.2+(&/]+=.&1:0'#L4PS;GOHX"C$- U4SN';A'.QL"0F$^\T@W
MOS 463">(%(< $X;EU%)(]O4II[&I-5#_.F#Q=TA9&ZGW!@C3(D,A-"ZSM#6
M$%),8)+6Q=$%;NR_=YO-*#4/:[,9(_,.D/-]ZX?A9!&SB&"EMW7)KP-7#,F$
M*X5!&"3/K@5H3J/-9I1Z7VRS&2/K#L#R5(:V<,D\2@,QUH'%=3:#=T74%20I
M&.(DL$:3,?8O#3SJS-7IWGOV$WH'V+F_4KRR]"M>O2N;S:6WHS[.=))9%\6
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MR'0%B%Q :98@ALSI,@C(K U.QR9U'Z^E\$MQ66+*#K0O$52D2,]G$J(K4NO
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M6FW?Z[;]@_H_=53=__IO_Q]02P,$%     @ &X&C4C?K1UMT"   #RL  !0
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M'%1+4V%C"-!D/'0.HMT,7%,,PIQ -T9&L]5I>!7P:_XP\.,D$BDD&+&R3&@
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MT HD,]I!H;SDS%7>U5Q2![2BEBZQ$A2<C!\%\"?X8I04S!U=F'QD!!-4"PQ
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M(G=%0%FN,\"T<:(D#)5FS@$G42<\!:TA =K0PC/<,]@%Y+>'+^PMD;F*\48
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M^FH('<.>SNWFD&=N?19__054=Q7V]']02P,$%     @ &X&C4D'3<'1?!0
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MO-<Q;YB._@%02P$"% ,4    "  ;@:-2['=@S*G. 0!+E14 $0
M    @ $     8VAG9RTR,#(Q,#,S,2YH=&U02P$"% ,4    "  ;@:-2,2+P
MFRL1   ?L@  $0              @ '8S@$ 8VAG9RTR,#(Q,#,S,2YX<V10
M2P$"% ,4    "  ;@:-2&\L2TF8A   Q5@$ %0              @ $RX $
M8VAG9RTR,#(Q,#,S,5]C86PN>&UL4$L! A0#%     @ &X&C4DA2.<R[:
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M9RTR,#(Q,#,S,5]P<F4N>&UL4$L! A0#%     @ &X&C4C?K1UMT"   #RL
M !0              ( !"Q$$ &5X,S$P,3(P,C$M,#-X,S$N:'1M4$L! A0#
M%     @ &X&C4L@8P4YH"   92L  !0              ( !L1D$ &5X,S$P
M,C(P,C$M,#-X,S$N:'1M4$L! A0#%     @ &X&C4D'3<'1?!0  O!H  !0
M             ( !2R($ &5X,S(P,3(P,C$M,#-X,S$N:'1M4$L%!@     *
-  H D@(  -PG!     $!

end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
