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Share-based compensation
3 Months Ended
Apr. 30, 2016
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 for the 13 weeks ended April 30, 2016, related to the Omnibus Plan and Share Saving Plans (13 weeks ended May 2, 2015: $3.3 million).