VALUE OF UNFAVOURABLE TIME CHARTERS (Details)	Nov. 30, 2015 contract
Reverse acquisition [Member]
Unfavourable contract amortisation schedule [Line Items]
Number of unfavourable time charter contracts	5

[Line Items] for Unfavourable contract amortisation schedule [Table]

No definition available.

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