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VESSELS (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($) Vessel	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) Vessel
VESSELS [Abstract]
Number of vessels | Vessel	27		24
Residual value	$ 4,000
Estimated useful life	25 years
Schedule of Vessels [Line Items]
Total	$ 1,697,597		$ 1,612,940
Less Accumulated Depreciation	(693,251)		(650,255)
Vessels, Net	1,004,346		962,685
Dry-docking charges	1,430	$ 5,610
Vessels [Member]
Schedule of Vessels [Line Items]
Total	1,611,436		1,530,245
Drydocking [Member]
Schedule of Vessels [Line Items]
Total	$ 86,161		$ 82,695

X

- Definition

Refers to expenditure incurred in vessel dry-docking.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Amount before accumulated depreciation of vessels used in the normal conduct of business and not intended for resale.

+ References

No definition available.

+ Details

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- Definition

Carrying amount at the balance sheet date of vessels used in the normal conduct of business and not intended for resale, net of accumulated depreciation on vessels.

+ References

No definition available.

+ Details

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X

- Definition

The number of vessels under the operational management at of the balance sheet date.

+ References

No definition available.

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.14)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- References

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- Definition

The estimated or actual value of the asset at the end of its useful life or when it is no longer serviceable (cannot be used for its original purpose).

+ References

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Details

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- Details

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