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v3.20.4

Long-Term Debt - 10.000% Senior Unsecured Notes due 2027 (Details) - USD ($) | Apr. 11, 2019 | Dec. 31, 2020 | Jul. 30, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Debt issuance costs and discount, net of issuance premium |  | $ 16,300,000 |  | $ 10,800,000
Senior Notes | 10.000% senior unsecured notes due 2027 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, stated rate | 10.00% | 10.00% |  |
Face value of debt issued | $ 430,000,000.0 |  | $ 115,000,000.0 |
Percentage of debt principal redeemable | 40.00% |  |  |
Percentage of principal |  |  | 100.75% |
Debt issuance costs and discount, net of issuance premium |  |  | $ 1,000,000.0 |
Senior Notes | 10.000% senior unsecured notes due 2027 | Redemption Period One |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price of debt | 110.00% |  |  |
Senior Notes | 10.000% senior unsecured notes due 2027 | Redemption Period Two |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price of debt | 100.00% |  |  |
Senior Notes | 10.000% senior unsecured notes due 2027 | Redemption Period Three |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price of debt | 105.00% |  |  |
Senior Notes | 10.000% senior unsecured notes due 2027 | Redemption Period Four |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price of debt | 102.50% |  |  |
Senior Notes | 10.000% senior unsecured notes due 2027 | Redemption Period Five |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price of debt | 100.00% |  |  |
Senior Notes | 10.000% senior unsecured notes due 2027 | Redemption Period Six |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price of debt | 101.00% |  |  |

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