Quarterly report pursuant to Section 13 or 15(d)

Internally Developed Software - Components of Internally Developed Software (Details)

v3.19.3
Internally Developed Software - Components of Internally Developed Software (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Internally developed software $ 94,255 $ 70,410
Less: accumulated amortization (40,930) (32,201)
Internally developed software, net $ 53,325 $ 38,209
Internally developed software    
Property, Plant and Equipment [Line Items]    
Estimated Useful Life 5 years