REVENUE FROM TIME CHARTERS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013 vessel	Mar. 31, 2012
REVENUE FROM TIME CHARTERS
Voyage revenues	$ 39,676	$ 59,025
Profit sharing revenue	0	0
Future minimum time charter revenue
Remainder of 2013	14,645
2014	$ 3,512
Additional off-hire period	0 days
Offhire period	20 days
Number of vessels excluded from disclosure of future minimum revenue	5

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Represents the additional off-hire days assumed for a vessel, which has a scheduled drydocking.

+ References

No definition available.

+ Details

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- Details

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- Definition

Represents the expected future minimum charter revenue, based on vessels committed to noncancellable time charter contracts during the next fiscal year following the latest fiscal year ended.

+ References

No definition available.

+ Details

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- Definition

Represents the expected future minimum charter revenue, based on vessels committed to noncancellable time charter contracts for the remainder of the fiscal year following the latest fiscal year ended.

+ References

No definition available.

+ Details

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- Definition

Represents the number of vessels in pool arrangements which have been excluded from the disclosure of future minimum revenue.

+ References

No definition available.

+ Details

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- Definition

Represents the assumed offhire days for a vessel which has a scheduled drydocking.

+ References

No definition available.

+ Details

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- Definition

Represents the profit sharing revenue included in time charter revenues.

+ References

No definition available.

+ Details

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- Definition

Revenue from transporting cargo and freight between locations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(d))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-AIR

-Paragraph 4

-IssueDate 2003-05-01

-Chapter 3

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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