Deferred Revenue (Detail) (USD $) In Millions, unless otherwise specified	Aug. 02, 2014	May 03, 2014	Feb. 01, 2014	Aug. 03, 2013		Apr. 23, 2013		Feb. 02, 2013
Deferred Revenue Arrangement [Line Items]
Voucher promotions and other	$ 5.8		$ 15.5	$ 6.0
Total deferred revenue	731.5		616.7	573.0
Deferred revenue, current liabilities	211.1		173.0	154.6
Deferred revenue, non-current liabilities	520.4		443.7	418.4
Total deferred revenue	731.5		616.7	573.0
Sterling Jewelers
Deferred Revenue Arrangement [Line Items]
ESP deferred revenue	626.6	619.6	601.2	567.0		563.4		549.7
Zale Jewelry
Deferred Revenue Arrangement [Line Items]
ESP deferred revenue	$ 99.1				[1]		[1]		[1]

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