Software and Equipment - Net Balances (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Property plant and equipment $ 58,956 $ 48,976
Accumulated amortization and depreciation (32,860) (24,211)
Software and equipment, net 26,096 24,765
Software    
Property, Plant and Equipment [Line Items]    
Property plant and equipment 46,522 38,450
Equipment    
Property, Plant and Equipment [Line Items]    
Property plant and equipment 8,992 7,035
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property plant and equipment $ 3,442 $ 3,491