Commitments and Contingencies - Future Minimum Operating Lease Commitments (Details) $ in Thousands |
Dec. 31, 2016
USD ($)
|
|---|---|
| Commitments and Contingencies [Abstract] | |
| 2017 | $ 30,376 |
| 2018 | 23,907 |
| 2019 | 17,041 |
| 2020 | 15,164 |
| 2021 | 6,850 |
| Thereafter | 3,095 |
| Total | $ 96,433 |