Long-Term Debt (Schedule Of Long-Term Debt And Weighted Average Interest) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total principal	$ 364,094	$ 366,424
Deferred financing costs	(15,497)	(16,844)
Total long-term debt	348,597	349,580
Less current portion	(5,083)	(5,322)
Long-term portion	343,514	344,258
Credit agreement - Goldman [Member]
Debt Instrument [Line Items]
Total principal	$ 345,625	$ 347,375
Weighted-average interest rate	10.92%	8.45%
UniCredit Term Loans [Member]
Debt Instrument [Line Items]
Total principal	$ 3,758	$ 4,661
Weighted-average interest rate	3.52%	3.17%
Financing Obligation - CDR Land Lease [Member]
Debt Instrument [Line Items]
Total principal	$ 14,711	$ 14,388
Weighted-average interest rate	14.58%	15.05%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	10.97%	8.72%