CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash Flows from Operating Activities:
Net Income	$ 31,549	$ 15,302	$ 42,221
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation	26,391	18,898	21,020
Amortization of Deferred Charges and Other Assets	8,954	6,569	9,878
Deferred Benefit for Income Taxes	0	(1,982)	(3,845)
Gain on Dry Bulk Transaction	(18,844)	0	0
Impairment Loss	0	25,430	2,899
Non-Cash Stock Based Compensation	1,801	2,341	1,834
Equity in Net Loss(Income) of Unconsolidated Entities	410	(9,282)	(6,959)
Distributions from Unconsolidated Entities	750	3,000	3,000
(Gain) Loss on Sale of Assets	0	(42)	2,209
Loss (Gain) on Sale of Investments	747	(213)	(980)
Loss on Foreign Currency Exchange	3,051	8,196	0
Changes in:
Deferred Drydocking Charges	(6,803)	(2,516)	(15,960)
Accounts Receivable	(1,290)	4,737	1,649
Inventories and Other Current Assets	(1,200)	(1,287)	704
Other Assets	669	1,337	(913)
Accounts Payable and Accrued Liabilities	3,133	3,906	6,059
Other Long-Term Liabilities	(3,045)	2,195	(135)
Net Cash Provided by Operating Activities	46,273	64,387	62,681
Cash Flows from Investing Activities:
Principal payments received under Direct Financing Leases	5,583	5,522	7,763
Capital Improvements to Vessels and Other Assets	(109,631)	(123,146)	(80,303)
Proceeds from Sale of Assets	0	3,853	5,020
Purchase of Marketable Securities	(74)	(11,008)	14,796
Proceeds from Sale of Marketable Securities	2,413	9,615	3,529
Investment in Unconsolidated Entities	(2,545)	(4,949)	(6,250)
Acquisition of Unconsolidated Entity	7,092	0	0
Net Increase in Restricted Cash Account	(8,907)	0	0
Proceeds from Sale of Unconsolidated Entity	526	0	0
Proceeds from Note Receivables	4,735	5,167	1,082
Net Cash Used In Investing Activities	(100,808)	(114,946)	(83,995)
Cash Flows from Financing Activities:
Common Stock Repurchase	0	(5,231)	0
Proceeds from Issuance of Debt	135,330	153,476	41,617
Repayment of Debt	(66,498)	(108,029)	(14,175)
Additions to Deferred Financing Charges	(1,788)	(1,155)	(235)
Common Stock Dividends Paid	(10,981)	(11,882)	(14,479)
Net Cash Provided by Financing Activities	56,063	27,179	12,728
Net Increase (Decrease) in Cash and Cash Equivalents	1,528	(23,380)	(8,546)
Cash and Cash Equivalents at Beginning of Period	19,909	43,289	51,835
Cash and Cash Equivalents at End of Period	$ 21,437	$ 19,909	$ 43,289