Long-Term Debt (Schedule Of Long-Term Debt And Weighted Average Interest) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total principal	$ 347,923	$ 366,424
Deferred financing costs	(14,837)	(16,844)
Total long-term debt	333,086	349,580
Less current portion	(4,909)	(5,322)
Long-term portion	328,177	344,258
Credit agreement - Goldman [Member]
Debt Instrument [Line Items]
Total principal	$ 344,750	$ 347,375
Weighted-average interest rate	11.15%	8.45%
UniCredit Term Loans [Member]
Debt Instrument [Line Items]
Total principal	$ 3,173	$ 4,661
Weighted-average interest rate	3.25%	3.17%
Financing Obligation - CDR Land Lease [Member]
Debt Instrument [Line Items]
Total principal		$ 14,388
Weighted-average interest rate		15.05%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	11.02%	8.72%