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INCOME TAXES (Details)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Foreign tax exemption expiration date	2035-03-31

X

- Definition

The expiration date for the foreign tax exemption.

+ References

No definition available.

+ Details

Name:	fro_ForeignTaxExemptionExpirationDate
Namespace Prefix:	fro_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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