Long-Term Debt (Schedule Of Long-Term Debt And Weighted Average Interest) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total principal	$ 342,023	$ 346,829
Deferred financing costs	(13,475)	(14,149)
Total long-term debt	328,548	332,680
Less current portion	(4,937)	(8,468)
Long-term portion	323,611	324,212
Credit agreement - Goldman [Member]
Debt Instrument [Line Items]
Total principal	$ 339,509	$ 343,875
Weighted-average interest rate	11.56%	11.44%
UniCredit Term Loans [Member]
Debt Instrument [Line Items]
Total principal	$ 2,514	$ 2,954
Weighted-average interest rate	3.06%	3.21%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	11.49%	10.89%