Fair Value Measurements - Schedule of Assets and Liabilities Carried at Fair Value on a Hierarchy Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets, Fair Value Disclosure [Abstract]
Total financial assets	$ 181,300	$ 33,748
Cash Equivalents - Money Market Funds
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents fair value disclosure	181,300	33,748
Level 1
Assets, Fair Value Disclosure [Abstract]
Total financial assets	181,300	33,748
Level 1 | Cash Equivalents - Money Market Funds
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents fair value disclosure	$ 181,300	$ 33,748