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Leases - Supplemental Cash Flow and Lease Cost Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating lease cost $ 9,012 $ 8,433
Variable lease cost 2,756 2,765
Total Lease Cost 11,768 11,198
Operating cash flows from operating leases $ 8,863 $ 8,304