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Summary of Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Accounting Policies [Abstract]        
Cash and cash equivalents $ 114,558 $ 241,332    
Restricted cash 2,920 2,920    
Cash, cash equivalents and restricted cash $ 117,478 $ 244,252 $ 615,498 $ 265,648