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Property and Equipment, Net (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Property, Plant and Equipment [Abstract]          
Depreciation and amortization expense $ 1,893 $ 2,002 $ 6,047 $ 4,397  
Software in progress $ 139   139   $ 1,485
Property, Plant and Equipment, Disposals     $ 1,961