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Debt (Schedule of Obligations Under Debt Arrangements) (Details) $ in Thousands | Jun. 30, 2024 USD ($) | May 09, 2024 | Dec. 31, 2023 USD ($) | Jan. 25, 2023 | May 17, 2022
--- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 4,014,590 |  | $ 3,823,215 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 65,196 |  | 58,751 |  |
Net Value | 3,949,394 |  | 3,764,464 |  |
5.875% Alkali senior secured notes due 2042(2) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | 400,000 |  |  |  |
Credit Facility | Revolving Credit Facility | Revolving Loan |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | 134,800 |  | 298,300 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 0 |  | 0 |  |
Net Value | 134,800 |  | 298,300 |  |
Unamortized debt issuance costs | 4,300 |  | 5,700 |  |
Senior Notes | 6.250% senior unsecured notes due 2026 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | 0 |  | 339,310 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 0 |  | 1,746 |  |
Net Value | $ 0 |  | 337,564 |  |
Interest rate | 6.25% |  |  |  |
Senior Notes | 8.000% senior unsecured notes due 2027 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 981,245 |  | 981,245 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 2,888 |  | 3,549 |  |
Net Value | $ 978,357 |  | 977,696 |  |
Interest rate | 8.00% |  |  |  |
Senior Notes | 7.750% senior unsecured notes due 2028 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 679,360 |  | 679,360 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 5,372 |  | 6,121 |  |
Net Value | $ 673,988 |  | 673,239 |  |
Interest rate | 7.75% |  |  |  |
Senior Notes | 5.875% Alkali senior secured notes due 2042(2) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 419,185 |  | 425,000 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 21,395 |  | 21,791 |  |
Net Value | $ 397,790 |  | 403,209 |  |
Interest rate | 5.875% |  |  |  |
Interest rate, limited term percentage |  |  |  |  | 10
Senior Notes | 8.250% Senior Unsecured Notes Due 2029 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 600,000 |  | 600,000 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 15,610 |  | 17,202 |  |
Net Value | $ 584,390 |  | 582,798 |  |
Interest rate | 8.25% |  |  |  |
2030 Notes | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 500,000 |  | 500,000 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 7,678 |  | 8,342 |  |
Net Value | $ 492,322 |  | 491,658 |  |
Interest rate | 8.875% |  |  | 8.875% |
2032 Notes | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal | $ 700,000 |  | 0 |  |
Unamortized Premium, Discount and Debt Issuance Costs | 12,253 |  | 0 |  |
Net Value | $ 687,747 |  | $ 0 |  |
Interest rate | 7.875% | 7.875% |  |  |

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