Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term principal	$ 1,036,735	$ 1,036,735
Debt issuance costs	(1,926)	(2,324)
Unamortized discounts	(1,081)	(1,731)
Total long-term debt	1,033,728	1,032,680
Less: current portion of long-term debt	(175,615)	(39,979)
Long-term debt	858,113	992,701
Variable Rate Term Loans [Member]
Debt Instrument [Line Items]
Long-term principal	761,000	721,000
Fixed Rate Term Loans [Member]
Debt Instrument [Line Items]
Long-term principal	210,000	250,000
Revenue Bonds [Member]
Debt Instrument [Line Items]
Long-term principal	$ 65,735	$ 65,735