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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	$ 0fro_PoolEarningsAllocatedOnNetBasis	$ 0fro_PoolEarningsAllocatedOnNetBasis	$ 35.9fro_PoolEarningsAllocatedOnNetBasis

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- Definition

Pool earnings allocated on a net basis

+ References

No definition available.

+ Details

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Namespace Prefix:	fro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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