XML 55 R44.htm IDEA: XBRL DOCUMENT
v3.21.2

Stockholders' Equity - Equity Offering (Details) - Public Offering $ / shares in Units, $ in Millions | 1 Months Ended
--- | ---
Feb. 28, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number of shares issued and sold (in shares) | shares | 10,974,600
Offering price per share (in dollars per share | $ / shares | $ 102.00
Proceeds from the Offering | $ 1,091.5
Underwriting discounts and commissions | 26.9
Offering expenses | $ 1.1

X
- Definition Sale Of Stock, Offering Expenses + References No definition available. + Details
Name: | chgg_SaleOfStockOfferingExpenses
Namespace Prefix: | chgg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sale Of Stock, Underwriting Discounts And Commissions + References No definition available. + Details
Name: | chgg_SaleOfStockUnderwritingDiscountsAndCommissions
Namespace Prefix: | chgg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=chgg_PublicOfferingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |