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Cash Equivalents and Marketable Securities - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 300,386	$ 322,831
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	230,594	206,960
Unrealized Gains	6	296
Unrealized Losses	(540)	(49)
Aggregate Fair Value	230,060	207,207
Cash and cash equivalents	300,386	322,831
Cash and cash equivalents and available-for-sale securities, amortized cost	491,848	487,538
Cash and cash equivalents and available-for-sale securities	491,314	487,785
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,479	21,489
Unrealized Gains	0	0
Unrealized Losses	0	0
Aggregate Fair Value	10,479	21,489
U.S. treasury debt securities
Debt Securities, Available-for-sale [Line Items]
Unrealized Gains	2	80
Unrealized Losses	(206)	(2)
Cash and cash equivalents and available-for-sale securities, amortized cost	54,809	51,731
Cash and cash equivalents and available-for-sale securities	54,605	51,809
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	161,792	147,715
Unrealized Gains	3	214
Unrealized Losses	(334)	(47)
Aggregate Fair Value	161,461	147,882
Foreign government debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,014	1,025
Unrealized Gains	1	2
Unrealized Losses	0	0
Aggregate Fair Value	5,015	1,027
Money market funds
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	259,754	265,578
Cash and cash equivalents, aggregate fair value	259,754	265,578
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	259,754	265,578
Cash and cash equivalents, aggregate fair value	259,754	265,578
Cash Equivalents
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	261,254	280,578
Cash and cash equivalents, aggregate fair value	261,254	280,578
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	261,254	280,578
Cash and cash equivalents, aggregate fair value	$ 261,254	$ 280,578

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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).

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