Quarterly report pursuant to Section 13 or 15(d)

Internally Developed Software (Details)

v3.19.2
Internally Developed Software (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Property, Plant and Equipment [Line Items]          
Internally developed software $ 85,993   $ 85,993   $ 70,410
Less: accumulated amortization (37,934)   (37,934)   (32,201)
Internally developed software, net 48,059   48,059   $ 38,209
Amortization expense $ 3,110 $ 1,846 $ 5,733 $ 3,539  
Internally developed software          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     5 years