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Debt (Schedule of Obligations Under Debt Arrangements) (Details) - USD ($)	Dec. 31, 2024	Jul. 19, 2024	Dec. 31, 2023	May 17, 2022	Dec. 17, 2020	Jan. 16, 2020	Dec. 11, 2017
Debt Instrument [Line Items]
Principal	$ 4,189,987,000		$ 3,823,215,000
Unamortized Premium, Discount and Debt Issuance Costs	69,737,000		58,751,000
Net Value	4,120,250,000		3,764,464,000
Senior Secured Credit Facility \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal	291,000,000		298,300,000
Unamortized Premium, Discount and Debt Issuance Costs	0		0
Net Value	$ 291,000,000		298,300,000
6.250% senior unsecured notes due 2026 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	6.25%						6.25%
Principal	$ 0		339,310,000
Unamortized Premium, Discount and Debt Issuance Costs	0		1,746,000
Net Value	$ 0		337,564,000
8.000% senior unsecured notes due 2027 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	8.00%	8.00%			8.00%
Principal	$ 406,245,000		981,245,000
Unamortized Premium, Discount and Debt Issuance Costs	933,000		3,549,000
Net Value	$ 405,312,000	$ 150,000,000	977,696,000
7.750% senior unsecured notes due 2028 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	7.75%	7.75%				7.75%
Principal	$ 679,360,000		679,360,000
Unamortized Premium, Discount and Debt Issuance Costs	4,622,000		6,121,000
Net Value	$ 674,738,000	$ 150,000,000	673,239,000
8.250% senior unsecured notes due 2029 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	8.25%
Principal	$ 600,000,000		600,000,000
Unamortized Premium, Discount and Debt Issuance Costs	13,993,000		17,202,000
Net Value	$ 586,007,000		582,798,000
8.875% senior unsecured notes due 2030 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	8.875%
Principal	$ 500,000,000		500,000,000
Unamortized Premium, Discount and Debt Issuance Costs	7,015,000		8,342,000
Net Value	$ 492,985,000		491,658,000
7.875% Senior Unsecured Notes Due 2032 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	7.875%
Principal	$ 700,000,000		0
Unamortized Premium, Discount and Debt Issuance Costs	11,476,000		0
Net Value	$ 688,524,000		0
8.000% Senior Unsecured Notes Due 2033 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	8.00%
Principal	$ 600,000,000		0
Unamortized Premium, Discount and Debt Issuance Costs	10,706,000		0
Net Value	589,294,000		0
5.875% Alkali senior secured notes due 2042
Debt Instrument [Line Items]
Principal	$ 400,000,000
5.875% Alkali senior secured notes due 2042 \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	5.875%
Principal	$ 413,382,000		425,000,000	$ 425,000,000
Unamortized Premium, Discount and Debt Issuance Costs	20,992,000		21,791,000
Net Value	392,390,000		403,209,000
Accrued Liabilities	13,100,000		11,600,000
Revolving Loan \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Unamortized debt issuance costs included in other long term assets	$ 7,900,000		$ 5,700,000