Long-Term Debt - Schedule of Contractual Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Long-Term Debt Maturity Schedule | ||
| 2017 | $ 232,750 | |
| 2018 | 253 | |
| 2019 | 253 | |
| 2020 | 118,077 | |
| 2021 | 0 | |
| Thereafter | 0 | |
| Total debt | 351,333 | |
| Debt Instrument [Line Items] | ||
| Aggregate unamortized debt financing costs | 2,363 | $ 5,243 |
| Credit Agreement | Term loan facility due November 2017 | ||
| Debt Instrument [Line Items] | ||
| Principal amount classified as long-term | $ 232,800 |