Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating Activities
Net loss	$ (55,166)	$ (29,219)
Adjustments to reconcile net loss to net cash provided by operating activities :
Depreciation and amortization	59,657	76,853
Loss on change in value of interest swap contract	916	1,467
Amortization and write-off of deferred financing costs	4,371	3,916
Allowance for doubtful accounts	256	500
Stock-based compensation	1,999	5,187
Non-cash interest costs	762
Drydocking expenditures	(7,864)	(8,450)
Net loss on vessel held for sale		5,154
Income from non-consolidated joint ventures		(56)
Changes in operating assets and liabilities:
(Increase) decrease in charter hire receivable	(6,083)	206
(Increase) in fuel and other inventories	(2,803)	(3,156)
(Increase) in prepaid expenses and other current assets	(4,025)	(1,557)
Decrease (increase) in other assets and deferred charges		(2,500)
Increase in accounts payable and accrued expenses	16,696	612
Decrease in voyages in progress	(182)	(752)
Increase (decrease) in advances from/to affiliates, net	(1,077)	1,075
Net cash provided by operating activities	7,457	49,280
Investing Activities
Net proceeds from sale of vessel		2,645
Vessel acquisitions / capital improvement costs	(30,369)	(60,263)
Payments from restricted cash	6,337	2,500
Payments to restricted cash		(400)
Repayment of loan made to non-consolidated joint venture		390
Investment in non-consolidated joint venture	(1,053)	(728)
Net cash used in investing activities	(25,085)	(55,856)
Financing Activities
Repayment of debt obligations	(12,312)	(47,988)
Proceeds from credit facilities	14,554	25,000
Payment of deferred financing costs	(3,946)	(4,106)
Payment to terminate interest swap contract		(3,014)
Proceeds of repayment of loan from non-controlling interests	1,194
Proceeds from private offering of Preference Shares	10,817
Proceeds from non-controlling interest's capital contributions		1,797
Acquisition of treasury stock	(248)	(686)
Net cash provided by (used in) financing activities	10,059	(28,997)
Effect of exchange rate changes on cash	606	471
Net decrease in cash and cash equivalents	(6,963)	(35,102)
Cash and cash equivalents - beginning of period	18,976	51,040
Cash and cash equivalents - end of period	12,013	15,938
Supplemental cash flow information:
Interest paid, inclusive of amounts capitalized	$ 23,234	$ 18,779