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Summary of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Accounting Policies [Abstract]        
Cash and cash equivalents $ 393,130 $ 134,942    
Restricted cash 5,402 1,279    
Total cash, cash equivalents and restricted cash $ 398,532 $ 136,221 $ 40,139 $ 7,624