ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accounts payable	$ 16,545	$ 18,554
Payroll and benefits	12,704	12,133
Interest	0	13,020
Due to owners on chartered in vessels	4,753	3,781
Drydock and repair costs	3,823	5,527
Bunkers and lubricants	14,201	9,724
Charter revenues received in advance	10,778	28,085
Insurance	1,009	625
Current portion of derivative liabilities	0	6,166
Vessel expenses	11,268	12,615
Other	24,192	14,513
Accounts Payable and Other Accrued Liabilities, Current	$ 99,273	$ 124,743