Senior Secured Notes Senior Secured Notes (Details) - USD ($) |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2010 |
|---|---|---|---|
| Debt Redemption Percentage | |||
| Debt Instrument, Unamortized Discount | $ (6,589,000) | ||
| Senior secured notes, net | 307,808,000 | $ 309,569,000 | |
| Senior Secured Notes | |||
| Debt Redemption Percentage | |||
| Debt Instrument, Face Amount | 307,808,000 | 309,569,000 | |
| Debt Instrument, Unamortized Discount | (6,589,000) | (6,828,000) | |
| Senior Notes, Current | 0 | 0 | |
| Senior secured notes, net | 307,808,000 | 309,569,000 | |
| Senior Secured Notes | First Lien Notes | |||
| Debt Redemption Percentage | |||
| Debt Instrument, Face Amount | 273,175,000 | 275,175,000 | $ 385,000,000.0 |
| Senior Secured Notes | Second Lien Notes | |||
| Debt Redemption Percentage | |||
| Debt Instrument, Face Amount | 2,198,000 | 2,198,000 | $ 104,900,000.0 |
| Senior Secured Notes | New Second Lien Notes | |||
| Debt Redemption Percentage | |||
| Debt Instrument, Face Amount | $ 39,024,000 | $ 39,024,000 |