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FINANCIAL INSTRUMENTS - Concentrations of Risk (Details)	12 Months Ended
	Dec. 31, 2011 charterers	Dec. 31, 2010 charterers	Dec. 31, 2009 charterers
Concentration of risks:
Number of charterers	6	6	6
Customer concentration risk | Sales revenue, services, net
Concentration of risks:
Number of significant customers	4
Customer concentration risk | Sales revenue, services, net | Petrobas
Concentration of risks:
Number of charterers	2
Customer concentration risk | Sales revenue, services, net | Petrobas | Minimum
Concentration of risks:
Concentration risk percentage	30.00%	30.00%	30.00%
Customer concentration risk | Sales revenue, services, net | DUSUP
Concentration of risks:
Number of charterers	1
Customer concentration risk | Sales revenue, services, net | Pertamina
Concentration of risks:
Number of charterers	1
Customer concentration risk | Sales revenue, services, net | Qatar Gas Transport Company
Concentration of risks:
Number of charterers	1
Supplier Concentration Risk [Member] | Samsung
Concentration of risks:
Number of newbuildings	9

X

- Definition

Concentration Risk, Number of Newbuilds

+ References

No definition available.

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- Definition

Concentration Risk, Number of Significant Customers

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- Definition

Number of Charterers

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13531-108611



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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