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Property and Equipment - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Property, Plant and Equipment [Abstract]        
Depreciation and amortization $ 4,751 $ 3,435 $ 8,970 $ 6,621
Capitalized computer software, additions $ 5,045 $ 2,836 $ 8,410 $ 5,513