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ACCOUNTING POLICIES 3 (Details) | 12 Months Ended
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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 | 3 fro_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 |

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- Definition Average period over which market price of scrap per ton is calculated up to delivery date + References No definition available. + Details
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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 No definition available. + Details
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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 + Details
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