Share-based compensation	6 Months Ended
Share-based compensation	Jul. 29, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	Share-based compensation Signet recorded share-based compensation expense of $4.0 million and $6.7 million for the 13 and 26 weeks ended July 29, 2017, respectively, related to the Omnibus Plan and Share Saving Plans (13 and 26 weeks ended July 30, 2016: $5.0 million and $8.8 million).

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.