Fair Value Measurements - Schedule of Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value Measurements Recurring - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	$ 280,365	$ 293,600
Money Market Funds
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	226,006	78,446
U.S. Treasury Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	52,432	215,154
Certificates of Deposit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	1,927
Level 1
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	280,365	293,600
Level 1 | Money Market Funds
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	226,006	78,446
Level 1 | U.S. Treasury Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	52,432	215,154
Level 1 | Certificates of Deposit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	1,927
Level 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 2 | Money Market Funds
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 2 | U.S. Treasury Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 2 | Certificates of Deposit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 3
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 3 | Money Market Funds
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 3 | U.S. Treasury Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Level 3 | Certificates of Deposit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value
Fair Value
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	280,365	293,600
Fair Value | Money Market Funds
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	226,006	78,446
Fair Value | U.S. Treasury Securities
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	52,432	$ 215,154
Fair Value | Certificates of Deposit
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Assets, Fair Value	$ 1,927