Warranty Deferred Revenue (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Nov. 01, 2014	Nov. 02, 2013		Nov. 01, 2014	Nov. 02, 2013
Sterling Jewelers
Deferred Revenue [Line Items]
ESP deferred revenue, beginning of period	$ 626.6	$ 567.0		$ 601.2	$ 549.7
Plans sold	47.4	40.6		165.5	142.0
Revenue recognized	(47.7)	(43.2)		(140.4)	(127.3)
ESP deferred revenue, end of period	626.3	564.4		626.3	564.4
Zale Jewelry
Deferred Revenue [Line Items]
ESP deferred revenue, beginning of period	99.4		[1]			[1]
Plans acquired			[1]	93.3		[1]
Plans sold	25.4		[1]	44.7		[1]
Revenue recognized	(20.1)		[1]	(33.3)		[1]
ESP deferred revenue, end of period	$ 104.7		[1]	$ 104.7		[1]

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