Goodwill and Intangible Assets (Amortization) (Details) - USD ($) $ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Amortization of finite-lived intangible assets | ||
| 2017 | $ 1,315 | |
| 2018 | 5,075 | |
| 2019 | 4,959 | |
| 2020 | 4,053 | |
| 2021 | 2,196 | |
| Thereafter | 8,077 | |
| Intangible assets, net | $ 25,675 | $ 23,120 |