Goodwill and Intangible Assets (Amortization expense) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
|
| Amortization expense | ||||
| Amortization of intangible assets | $ 1,238 | $ 403 | $ 2,172 | $ 728 |