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ACCOUNTING POLICIES 3 (Details)	12 Months Ended
	Dec. 31, 2014 recycling_market	Dec. 31, 2012
Significant Acquisitions and Disposals [Line Items]
Average period over which market price of scrap per ton is calculated	10 years
Number of Recycling Markets	3fro_NumberOfRecyclingMarkets
Profit share expense percentage (in hundredths)	20.00%fro_ProfitShareExpensePercentage	25.00%fro_ProfitShareExpensePercentage
Vessel [Member]
Significant Acquisitions and Disposals [Line Items]
Estimated remaining economic useful life	P25Y
Property, Plant and Equipment, Other Types [Member]
Significant Acquisitions and Disposals [Line Items]
Estimated remaining economic useful life	P5Y

X

- Definition

Average period over which market price of scrap per ton is calculated up to delivery date

+ References

No definition available.

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- Definition

Number of Recycling Markets used to calculate the market price of scrap per tonne

+ References

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X

- Definition

Represents the percentage used to calculate profit share expenses, which are amounts due to Ship Finance based on this percentage of the excess of vessel revenues earned by the Company over the base hire paid to Ship Finance for chartering in the vessels.

+ References

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- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 35

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6539997&loc=d3e1205-110223

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