Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:
Net Income	$ 18,157,000	$ 21,962,000	$ 31,549,000
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	24,930,000	24,975,000	26,391,000
Amortization of Deferred Charges	11,638,000	7,979,000	7,022,000
Amortization of Intangible Assets	5,701,000	3,055,000	1,932,000
Deferred Tax	(12,046,000)	(776,000)
Gain on Dry Bulk Transaction			(18,844,000)
Non-Cash Share Based Compensation	1,420,000	1,216,000	1,801,000
Equity in Net Loss of Unconsolidated Entities	1,661,000	215,000	410,000
Distributions from Unconsolidated Entities			750,000
Loss (Gain) on Sale of Assets	16,000	(16,625,000)
(Gain) Loss on Sale of Investments		(580,000)	747,000
(Gain) Loss on Foreign Currency Exchange	(5,914,000)	(5,506,000)	3,051,000
Changes in:
Deferred Drydocking Charges	(18,176,000)	(11,304,000)	(6,803,000)
Accounts Receivable	2,014,000	(3,533,000)	(1,290,000)
Inventories and Other Current Assets	(767,000)	(2,734,000)	(1,200,000)
Other Assets	840,000	2,121,000	669,000
Accounts Payable and Accrued Liabilities	(9,478,000)	(6,481,000)	3,133,000
Other Long-Term Liabilities	3,779,000	(4,150,000)	(3,045,000)
Net Cash Provided by Operating Activities	23,775,000	9,834,000	46,273,000
Cash Flows from Investing Activities:
Principal payments received under Direct Financing Leases	558,000	3,877,000	5,583,000
Acquisition of Frascati Shops Inc and Tower, LLC		(620,000)
Capital Improvements to Vessels and Other Assets	(32,543,000)	(50,729,000)	(109,631,000)
Proceeds from Sale of Assets		225,315,000
Purchase of Marketable Securities			(74,000)
Proceeds from Sale of Marketable Securities		12,433,000	2,413,000
Investment in Unconsolidated Entities	(3,520,000)	(1,000,000)	(2,545,000)
Acquisition of Unconsolidated Entity			7,092,000
Net Increase in Restricted Cash Account	(499,000)	(1,093,000)	(8,907,000)
Proceeds from Sale of Unconsolidated Entities			526,000
Acquisition of United Ocean Services, LLC, net of cash acquired	(2,475,000)	(112,242,000)
Proceeds from Payments on Note Receivables	5,954,000	4,754,000	4,735,000
Net Cash (Used In) Provided by Investing Activities	(32,525,000)	80,695,000	(100,808,000)
Cash Flows from Financing Activities:
Issuance of Preferred Stock	53,333,000
Proceeds from Issuance of Debt	76,000,000	137,930,000	135,330,000
Repayment of Debt	(108,711,000)	(220,337,000)	(66,498,000)
Additions to Deferred Financing Charges	(2,122,000)	(1,274,000)	(1,788,000)
Dividends Paid	(9,608,000)	(8,417,000)	(10,981,000)
Net Cash Provided by (Used In) Financing Activities	8,892,000	(92,098,000)	56,063,000
Net Increase (Decrease) in Cash and Cash Equivalents	142,000	(1,569,000)	1,528,000
Cash and Cash Equivalents at Beginning of Period	19,868,000	21,437,000	19,909,000
Cash and Cash Equivalents at End of Period	$ 20,010,000	$ 19,868,000	$ 21,437,000