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POOL REVENUES (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Revenues [Abstract] |  |  |
Pool earnings allocated on a net basis | $ 0 fro_PoolEarningsAllocatedOnNetBasis | $ 0 fro_PoolEarningsAllocatedOnNetBasis | $ 35.9 fro_PoolEarningsAllocatedOnNetBasis

X
- Definition Pool earnings allocated on a net basis + References No definition available. + Details
Name: | fro_PoolEarningsAllocatedOnNetBasis
Namespace Prefix: | fro_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_RevenuesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration