Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Cash and cash equivalents	$ 45,634	$ 71,369	$ 62,085
Restricted cash	13,400	12,917	12,836
Restricted cash-non current	6,189	18,609	30,270
Total Cash, cash equivalents and restricted cash per statement of cash flows	$ 65,223	$ 102,895	$ 105,191