Debt - Debt Extinguishment - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
Dec. 31, 2016 |
|
| Debt Instrument [Line Items] | |||
| Loss on debt extinguishment | $ (30) | $ (5,341) | |
| Master Trust Notes | |||
| Debt Instrument [Line Items] | |||
| Debt extinguishment costs | $ 49,200 | 103,800 | |
| Weighted average contractual interest rate (as a percent) | 5.69% | 6.72% | |
| Loss on debt extinguishment | $ (5,300) | ||