Long-Term Debt - 2014 Second Lien Credit Agreement (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Mar. 31, 2016 |
Oct. 06, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Debt Instrument [Line Items] | |||||
| Prepayment penalty, amount | $ 4,900 | $ 0 | $ 0 | ||
| Loss on debt extinguishment | $ 11,876 | $ 16,102 | $ 23,414 | ||
| 2014 Second Lien Credit Agreement | Line of Credit | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, prepayment of principle | $ 252,800 | $ 243,500 | |||
| Discount write-off and issuance costs | 8,300 | ||||
| Accrued interest paid | $ 65 | ||||
| Prepayment penalty percentage | 3.00% | ||||
| Prepayment penalty, amount | $ 7,300 | ||||
| Loss on debt extinguishment | 8,300 | ||||
| Accrued interest | $ 1,300 | ||||