Debt - Redemption of Prior Notes Narrative (Details) - USD ($) |
9 Months Ended | |||||
|---|---|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Feb. 07, 2020 |
Jan. 31, 2020 |
Dec. 31, 2019 |
Oct. 17, 2016 |
|
| Debt Instrument [Line Items] | ||||||
| Stated interest rate | 9.25% | |||||
| Redemption premium | $ 75,000,000.0 | $ 0 | ||||
| Other Deductions Net | ||||||
| Debt Instrument [Line Items] | ||||||
| Write off of deferred debt issuance cost | $ 34,300,000 | |||||
| 12.00%/13.00% Senior PIK Toggle Notes due 2022 | Senior Notes | ||||||
| Debt Instrument [Line Items] | ||||||
| Aggregate principal amount | $ 500,000,000.0 | |||||
| Cash interest rate, stated percentage | 12.00% | |||||
| PIK interest rate, stated percentage | 13.00% | |||||
| 9.250% Notes due 2024 | Notes Payable to Banks | ||||||
| Debt Instrument [Line Items] | ||||||
| Aggregate principal amount | $ 750,000,000.0 | |||||
| Stated interest rate | 9.25% | |||||
| Principal amount repurchased | $ 500,000 | |||||
| 10.00% Notes due 2024 | Notes Payable to Banks | ||||||
| Debt Instrument [Line Items] | ||||||
| Aggregate principal amount | $ 120,000,000.0 | |||||
| Stated interest rate | 10.00% | |||||