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Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2022

Marketable Securities [Abstract]

Summary of Marketable Securities

Marketable securities consisted of the following as of the periods presented (in thousands):

						March 31, 2022
						Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Marketable Securities
U.S. Treasury securities						$	196,282					$	1					$	(1,544)					$	194,739
Certificates of deposit						14,273						4						(43)						14,234
Corporate debt securities						32,979						—						(267)						32,712
Commercial paper						14,712						—						(48)						14,664
Asset-backed securities						5,187						—						(9)						5,178
Total marketable securities						$	263,433					$	5					$	(1,911)					$	261,527

    

						December 31, 2021
						Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Marketable Securities
U.S. Treasury securities						$	157,681					$	—					$	(404)					$	157,277
Certificates of deposit						6,495						—						(5)						6,490
Corporate debt securities						36,422						—						(95)						36,327
Commercial papers						11,624						2						(6)						11,620
Asset-backed securities						5,901						1						(7)						5,895
Total marketable securities						$	218,123					$	3					$	(517)					$	217,609

Summary of Marketable Securities in an Unrealized Loss Position

Marketable securities in an unrealized loss position for less than 12 months consisted of the following as of the periods presented (in thousands):

						March 31, 2022												December 31, 2021
						Fair Value						Gross Unrealized Loss						Fair Value						Gross Unrealized Loss
U.S. Treasury securities						$	179,056					$	(1,544)					$	143,590					$	(404)
Certificates of deposit						11,727						(43)						6,490						(5)
Corporate debt securities						31,990						(267)						36,327						(95)
Commercial paper						14,663						(48)						6,984						(6)
Asset-backed securities						5,007						(9)						4,967						(7)
Total						$	242,443					$	(1,911)					$	198,358					$	(517)

Summary of Remaining Contractual Maturities of Marketable Securities

The following summarizes the remaining contractual maturities of the Company’s marketable securities as of March 31, 2022:

			Fair Value
One year or less			$	240,174
Over one year through five years			21,353
Total marketable securities			$	261,527

X

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

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- Definition

Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455

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- Definition

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

+ References

No definition available.

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