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Organization and Summary of Accounting Policies - Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Apr. 11, 2019 | Jun. 30, 2018
--- | --- | --- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | $ 2,634.1 |  |  |
Senior secured term loan | Secured Debt | Carrying Amount |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | 1,370.0 | $ 1,530.7 |  |
Senior secured term loan | Secured Debt | Fair Value | Fair Value, Inputs, Level 2 |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | $ 1,359.7 | 1,530.7 |  |
6.750% senior unsecured notes due 2025 | Senior Notes |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Debt instrument, stated rate (percent) | 6.75% |  |  | 6.75%
6.750% senior unsecured notes due 2025 | Senior Notes | Carrying Amount |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | $ 185.0 | 370.0 |  |
6.750% senior unsecured notes due 2025 | Senior Notes | Fair Value | Fair Value, Inputs, Level 2 |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | $ 183.4 | 371.9 |  |
10.000% senior unsecured notes due 2027 | Senior Notes |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Debt instrument, stated rate (percent) | 10.00% |  | 10.00% |
10.000% senior unsecured notes due 2027 | Senior Notes | Carrying Amount |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | $ 320.0 | 545.0 |  |
10.000% senior unsecured notes due 2027 | Senior Notes | Fair Value | Fair Value, Inputs, Level 2 |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Long-term debt | $ 326.8 | $ 577.0 |  |

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