Internally Developed Software - Amortization Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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| Research and Development [Abstract] | ||||
| Amortization expense | $ 2,800 | $ 2,169 | $ 8,533 | $ 5,708 |
| X | ||||||||||
- Definition Amount of expense for amortization of capitalized computer software costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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