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Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Jun. 23, 2025 | Dec. 31, 2024 | Jan. 18, 2024 | Oct. 07, 2020
--- | --- | --- | --- | --- | ---
Assets: |  |  |  |  |
Pension plans |  |  | $ 3,936 |  |
7.00% senior notes due 2027 |  |  |  |  |
Liabilities: |  |  |  |  |
Stated interest rate (as a percent) |  | 7.00% | 7.00% |  |
Face Value |  |  | $ 400,000 |  |
Fair Value |  |  | $ 400,500 |  |
6.875% senior notes due 2029 |  |  |  |  |
Liabilities: |  |  |  |  |
Stated interest rate (as a percent) | 6.875% |  | 6.875% |  | 6.875%
Face Value | $ 350,000 |  | $ 350,000 |  | $ 350,000
Fair Value | $ 353,500 |  | $ 347,813 |  |
8.250% senior notes due 2032 |  |  |  |  |
Liabilities: |  |  |  |  |
Stated interest rate (as a percent) | 8.25% |  | 8.25% | 8.25% |
Face Value | $ 450,000 |  | $ 450,000 | $ 450,000 |
Fair Value | $ 471,375 |  | 464,063 |  |
7.125% senior notes due 2033 |  |  |  |  |
Liabilities: |  |  |  |  |
Stated interest rate (as a percent) | 7.125% | 7.125% |  |  |
Face Value | $ 450,000 | $ 450,000 |  |  |
Fair Value | 455,625 |  |  |  |
Recurring basis | Exchange-Traded Derivatives |  |  |  |  |
Assets: |  |  |  |  |
Cash Collateral Netting | 14,578 |  | 21,943 |  |
Recurring basis | Total estimated fair value |  |  |  |  |
Assets: |  |  |  |  |
Pension plans |  |  | 3,936 |  |
Total assets | 34,871 |  | 37,781 |  |
Recurring basis | Total estimated fair value | Forward derivative contracts |  |  |  |  |
Assets: |  |  |  |  |
Derivative assets | 17,067 |  | 13,710 |  |
Liabilities: |  |  |  |  |
Derivative liabilities | (4,540) |  | (6,105) |  |
Recurring basis | Total estimated fair value | Exchange-Traded Derivatives |  |  |  |  |
Assets: |  |  |  |  |
Exchange-traded/cleared derivative instruments | 17,804 |  | 20,135 |  |
Recurring basis | Total estimated fair value | Level 1 |  |  |  |  |
Assets: |  |  |  |  |
Pension plans |  |  | 3,936 |  |
Total assets | 3,226 |  | 2,128 |  |
Recurring basis | Total estimated fair value | Level 1 | Exchange-Traded Derivatives |  |  |  |  |
Assets: |  |  |  |  |
Exchange-traded/cleared derivative instruments | 3,226 |  | (1,808) |  |
Recurring basis | Total estimated fair value | Level 2 |  |  |  |  |
Assets: |  |  |  |  |
Total assets | 17,067 |  | 13,710 |  |
Recurring basis | Total estimated fair value | Level 2 | Forward derivative contracts |  |  |  |  |
Assets: |  |  |  |  |
Derivative assets | 17,067 |  | 13,710 |  |
Liabilities: |  |  |  |  |
Derivative liabilities | $ (4,540) |  | $ (6,105) |  |

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