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Share-based compensation
6 Months Ended
Aug. 03, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share-based compensation Share-based compensation
Signet recorded share-based compensation expense of $4.3 million and $8.3 million for the 13 and 26 weeks ended August 3, 2019 related to the Omnibus Plan and Share Saving Plans ($6.4 million and $8.2 million for the 13 and 26 weeks ended August 4, 2018).