Quarterly report pursuant to Section 13 or 15(d)

Internally Developed Software, Net (Details)

v3.10.0.1
Internally Developed Software, Net (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Internally developed software $ 63,953   $ 63,953   $ 46,342
Less: accumulated amortization (29,876)   (29,876)   (24,168)
Internally developed software, net 34,077   34,077   $ 22,174
Amortization expense $ 2,169 $ 1,391 $ 5,708 $ 3,791  
Internally developed software          
Estimated Useful Life     5 years