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Debt (Schedule of Obligations Under Debt Arrangements) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jan. 25, 2023	Dec. 31, 2022	May 17, 2022
Debt Instrument [Line Items]
Principal	$ 3,593,349		$ 3,506,284
Unamortized Premium, Discount and Debt Issuance Costs	47,077		42,130
Net Value	3,546,272		3,464,154
5.625% senior unsecured notes due 2024
Debt Instrument [Line Items]
Principal	0		341,135
Unamortized Premium, Discount and Debt Issuance Costs	0		1,249
Net Value			339,886
5.875% Alkali senior secured notes due 2042(2)
Debt Instrument [Line Items]
Principal	400,000
Term Loan
Debt Instrument [Line Items]
Net Value	0
Credit Facility \| Revolving Credit Facility \| Revolving Loan
Debt Instrument [Line Items]
Principal	133,600		205,400
Unamortized Premium, Discount and Debt Issuance Costs	0		0
Net Value	133,600		205,400
Unamortized debt issuance costs	$ 6,700		2,600
Senior Notes \| 5.625% senior unsecured notes due 2024
Debt Instrument [Line Items]
Interest rate	5.625%
Senior Notes \| 6.500% senior unsecured notes due 2025
Debt Instrument [Line Items]
Principal	$ 534,834		534,834
Unamortized Premium, Discount and Debt Issuance Costs	2,672		3,265
Net Value	$ 532,162		531,569
Interest rate	6.50%
Senior Notes \| 6.250% senior unsecured notes due 2026
Debt Instrument [Line Items]
Principal	$ 339,310		339,310
Unamortized Premium, Discount and Debt Issuance Costs	2,113		2,481
Net Value	$ 337,197		336,829
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	4,239		4,956
Net Value	$ 977,006		976,289
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	6,871		7,621
Net Value	$ 672,489		671,739
Interest rate	7.75%
Senior Notes \| 5.875% Alkali senior secured notes due 2042(2)
Debt Instrument [Line Items]
Principal	$ 425,000		425,000
Unamortized Premium, Discount and Debt Issuance Costs	22,178		22,558
Net Value	$ 402,822		402,442
Interest rate	5.875%			5.875%
2030 Notes \| Senior Notes
Debt Instrument [Line Items]
Principal	$ 500,000		0
Unamortized Premium, Discount and Debt Issuance Costs	9,004		0
Net Value	$ 490,996		$ 0
Interest rate		8.875%