Goodwill and Intangible Assets (Goodwill) (Details) $ in Thousands |
9 Months Ended |
|---|---|
|
Sep. 30, 2017
USD ($)
| |
| Business Combination - Goodwill | |
| Balance at beginning of the period | $ 16,809 |
| Current period acquisitions | 4,785 |
| Foreign currency translation adjustment | 261 |
| Balance at end of the period | $ 21,855 |