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Share-based compensation	6 Months Ended
Share-based compensation	Aug. 01, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	Share-based compensation Signet recorded share-based compensation expense of $3.8 million and $7.1 million for the 13 and 26 weeks ended August 1, 2015, respectively, related to the Omnibus Plan and Share Saving Plans (13 and 26 weeks ended August 2, 2014: $4.0 million and $7.2 million, respectively).