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Marketable Securities - Schedule of Fair Value and Amortized Cost of Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Marketable Securities [Line Items]
Amortized Cost	$ 640,885	$ 251,424
Unrealized Gains	5	387
Unrealized Losses	(805)	(55)
Fair Value	640,085	251,756
U.S. agency obligations [Member]
Marketable Securities [Line Items]
Amortized Cost	54,122	32,520
Unrealized Gains	0	0
Unrealized Losses	(115)	(10)
Fair Value	54,007	32,510
U.S. treasury securities [Member]
Marketable Securities [Line Items]
Amortized Cost	446,878
Unrealized Gains	0
Unrealized Losses	(443)
Fair Value	446,435
Municipal bonds [Member]
Marketable Securities [Line Items]
Amortized Cost	3,045
Unrealized Gains	0
Unrealized Losses	(1)
Fair Value	3,044
Corporate notes and bonds [Member]
Marketable Securities [Line Items]
Amortized Cost	125,845	155,401
Unrealized Gains	5	360
Unrealized Losses	(246)	(21)
Fair Value	125,604	155,740
Commercial paper [Member]
Marketable Securities [Line Items]
Amortized Cost	10,995	63,503
Unrealized Gains	0	27
Unrealized Losses	0	(24)
Fair Value	$ 10,995	$ 63,506

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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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