Long-Term Debt (Schedule Of Long-Term Debt And Weighted Average Interest) (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total principal		$ 204,119	$ 188,961
Deferred financing costs		(10,090)	(9,998)
Total long-term debt		194,029	178,963
Less current portion		(10,572)	(3,157)
Long-term portion		183,457	175,806
Credit Agreement - Macquarie [Member]
Debt Instrument [Line Items]
Total principal		$ 179,525	$ 170,000
Weighted-average interest rate		7.16%	7.22%
Credit Agreements - CPL [Member]
Debt Instrument [Line Items]
Total principal		$ 1,591	$ 1,966
Weighted-average interest rate		3.65%	3.13%
UniCredit Loan [Member]
Debt Instrument [Line Items]
Total principal	[1]	$ 1,861	$ 1,983
Weighted-average interest rate	[1]	2.24%	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		$ 13,742	$ 15,012
Weighted-average interest rate		13.97%	14.88%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate		7.49%	7.06%

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