Significant Accounting Policies - Summary of the Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Cash and cash equivalents	$ 204,404	$ 107,180	$ 110,082	$ 31,004
Restricted cash	397	656	2,657	3,475
Cash and cash equivalents and restricted cash	204,801	107,836	112,739	$ 34,479
Net increase (decrease) in cash and cash equivalents and restricted cash	$ 96,965	$ (4,903)	$ 78,260