Investments - Schedule of Available-for-sale Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Short-Term Marketable Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	$ 250,448	$ 214,115
Unrealized Gain		4
Unrealized Loss	(1,691)	(123)
Estimated Fair Value	248,757	213,996
Long-Term Marketable Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	140,202	218,163
Unrealized Loss	(3,092)	(1,018)
Estimated Fair Value	137,110	217,145
U.S. Government Debt Securities | Short-Term Marketable Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	210,589	186,752
Unrealized Gain		4
Unrealized Loss	(1,405)	(109)
Estimated Fair Value	209,184	186,647
U.S. Government Debt Securities | Long-Term Marketable Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	140,202	205,472
Unrealized Loss	(3,092)	(974)
Estimated Fair Value	137,110	204,498
Corporate Bonds | Short-Term Marketable Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	39,859	27,363
Unrealized Loss	(286)	(14)
Estimated Fair Value	$ 39,573	27,349
Corporate Bonds | Long-Term Marketable Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost		12,691
Unrealized Loss		(44)
Estimated Fair Value		$ 12,647