Deferred Revenue (Detail) (USD $) In Millions, unless otherwise specified	Nov. 01, 2014	Aug. 02, 2014	Feb. 01, 2014	Nov. 02, 2013		Aug. 03, 2013		Feb. 02, 2013
Deferred Revenue Arrangement [Line Items]
Voucher promotions and other	$ 9.4		$ 15.5	$ 8.1
Total deferred revenue	740.4		616.7	572.5
Deferred revenue, current liabilities	221.6		173.0	156.3
Deferred revenue, non-current liabilities	518.8		443.7	416.2
Total deferred revenue	740.4		616.7	572.5
Sterling Jewelers
Deferred Revenue Arrangement [Line Items]
ESP deferred revenue	626.3	626.6	601.2	564.4		567.0		549.7
Zale Jewelry
Deferred Revenue Arrangement [Line Items]
ESP deferred revenue	$ 104.7	$ 99.4			[1]		[1]		[1]

[1] n/a Not applicable as the Acquisition occurred during Fiscal 2015.