Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Goodwill [Roll Forward] | ||
| Goodwill, beginning balance | $ 88,959 | $ 88,989 |
| Additions | 56,992 | 0 |
| Disposals | (577) | (30) |
| Goodwill, ending balance | $ 145,374 | $ 88,959 |