Marketable Securities - Summary of Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Marketable Securities [Line Items]
Amortized Cost	$ 492,767	$ 520,286
Unrealized Gains	6	1
Unrealized Losses	(3,216)	(658)
Fair Value	489,557	519,629
U.S. Treasury Securities
Marketable Securities [Line Items]
Amortized Cost	167,060	186,700
Unrealized Gains	6
Unrealized Losses	(397)	(45)
Fair Value	166,669	186,655
US Government Corporations and Agencies Securities [Member]
Marketable Securities [Line Items]
Amortized Cost	89,615	79,657
Unrealized Gains
Unrealized Losses	(1,162)	(125)
Fair Value	88,453	79,532
Corporate Securities
Marketable Securities [Line Items]
Amortized Cost	236,092	253,929
Unrealized Gains		1
Unrealized Losses	(1,657)	(488)
Fair Value	$ 234,435	$ 253,442

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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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).

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