INTANGIBLE ASSETS OTHER THAN GOODWILL - Amortization Expense (Table) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012
INTANGIBLE ASSETS OTHER THAN GOODWILL [Abstract]
Unfavorable lease terms	$ 342	$ 342
Favorable lease terms charter-out	(5,924)	(4,323)
Total	$ (5,582)	$ (3,981)

The aggregate expense charged against earnings to allocate the cost of acquired intangible assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

No definition available.

Name:	us-gaap_AmortizationOfAcquiredIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration