Long-Term Debt - Schedule Of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Capital leases and other notes | $ 35,898 | $ 49,926 |
| Unamortized discount and deferred debt costs | (8,795) | (11,169) |
| Total long-term debt | 327,103 | 338,757 |
| Less current portion | 18,738 | 19,582 |
| Total non-current portion of long-term debt | 308,365 | 319,175 |
| 10.75 % Senior Notes due 2023 | ||
| Debt Instrument [Line Items] | ||
| Aggregate principal amount | $ 300,000 | $ 300,000 |