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- Deferred revenue (Detail) - USD ($)
$ in Millions
Aug. 01, 2015
May. 02, 2015
Jan. 31, 2015
Aug. 02, 2014
May. 03, 2014
Feb. 01, 2014
Deferred Revenue Arrangement [Line Items]            
Voucher promotions and other $ 13.5   $ 22.7 $ 5.8    
Total deferred revenue 837.2   811.9 731.5    
Current liabilities 230.2   248.0 211.1    
Non-current liabilities 607.0   563.9 520.4    
Sterling Jewelers            
Deferred Revenue Arrangement [Line Items]            
ESP deferred revenue 691.4 $ 690.7 668.9 626.6 $ 619.6 $ 601.2
Zale Jewelry            
Deferred Revenue Arrangement [Line Items]            
ESP deferred revenue $ 132.3   $ 120.3 $ 99.1