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Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement Of Cash Flows [Abstract]        
Cash $ 10,507 $ 8,052 $ 2,263 $ 3,657
Restricted cash 138,682 63,824 54,164 46,484
Total cash and restricted cash $ 149,189 $ 71,876 $ 56,427 $ 50,141