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Leases - Lease Cost and Other Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating lease cost $ 11,091 $ 11,248
Variable lease payments 295 1,466
Cash paid for amounts included in the measurement of operating lease liabilities $ 3,214 $ 3,239