Fair Value Measurements - Schedule of Fair Value and Amortized Cost of Investments in Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	$ 318,963
Unrealized Gain	4
Unrealized Loss	(62)
Fair Value	318,905
Money Market Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	115,410	$ 5,508
Unrealized Gain
Unrealized Loss
Fair Value	115,410	$ 5,508
US Treasuries
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	24,056
Unrealized Gain	1
Unrealized Loss	(4)
Fair Value	24,053
Government Treasury and Agency Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	7,606
Unrealized Loss	(6)
Fair Value	7,600
Corporate Securities and Commercial Paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	171,891
Unrealized Gain	3
Unrealized Loss	(52)
Fair Value	$ 171,842