Fair Value of Financial Assets and Liabilities - (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets:
Cash and cash equivalents	$ 101,816	$ 188,493
Marketable securities:
U.S. Treasury obligations	64,958	40,159
Total assets	166,774	228,652
Level 1
Assets:
Cash and cash equivalents	101,816	188,493
Marketable securities:
U.S. Treasury obligations	64,958	40,159
Total assets	$ 166,774	$ 228,652