Goodwill and Intangible Assets (Amortization) (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Amortization of finite-lived intangible assets | ||
| Remainder of 2019 | $ 5,355 | |
| 2020 | 6,051 | |
| 2021 | 3,457 | |
| 2022 | 3,243 | |
| 2023 | 3,183 | |
| Thereafter | 4,100 | |
| Intangible assets, net | $ 25,389 | $ 20,651 |