Long-Term Debt (Schedule Of Long-Term Debt And Weighted Average Interest) (Details) - USD ($) $ in Thousands		Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total principal		$ 193,757	$ 188,961
Deferred financing costs		(9,651)	(9,998)
Total long-term debt		184,106	178,963
Less current portion		(10,530)	(3,157)
Long-term portion		173,576	175,806
Credit Agreement - Macquarie [Member]
Debt Instrument [Line Items]
Total principal		$ 168,725	$ 170,000
Weighted-average interest rate		7.03%	7.22%
Credit Agreements - CPL [Member]
Debt Instrument [Line Items]
Total principal		$ 1,469	$ 1,966
Weighted-average interest rate		2.76%	3.13%
UniCredit Loan [Member]
Debt Instrument [Line Items]
Total principal	[1]	$ 1,547	$ 1,983
Weighted-average interest rate	[1]	2.13%	2.47%
UniCredit Agreement [Member]
Debt Instrument [Line Items]
Total principal		$ 7,400
Weighted-average interest rate		2.60%
Financing Obligation - CDR Land Lease [Member]
Debt Instrument [Line Items]
Total principal		$ 14,616	$ 15,012
Weighted-average interest rate		13.48%	14.88%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate		7.29%	7.06%

[1] CRM assumed the UniCredit loan to CCB in February 2020.