Long-Term Debt (Schedule Of Long-Term Debt And Weighted Average Interest) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total principal	$ 189,179	$ 193,811
Deferred financing costs	(7,695)	(9,261)
Total long-term debt	181,484	184,550
Less current portion	(3,958)	(10,718)
Long-term portion	177,526	173,832
Credit Agreement - Macquarie [Member]
Debt Instrument [Line Items]
Total principal	$ 166,600	$ 168,300
Weighted-average interest rate	6.70%	6.72%
Credit Agreements - CPL [Member]
Debt Instrument [Line Items]
Total principal	$ 207	$ 1,296
Weighted-average interest rate	2.12%	2.61%
UniCredit Term Loans [Member]
Debt Instrument [Line Items]
Total principal	$ 6,994	$ 1,502
Weighted-average interest rate	2.55%	2.05%
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	$ 15,378	$ 15,313
Weighted-average interest rate	11.44%	13.70%
Total Principal [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	6.89%	7.03%

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount (premium).

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Weighted average interest rate of debt outstanding.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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