Summary of Goodwill by Reporting Unit (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 01, 2014		May 03, 2014	May 04, 2013
Goodwill [Line Items]
Beginning balance	$ 24.6		$ 26.8	$ 24.6
Acquisition	2.2	[1]
Ending balance	26.8		26.8	24.6
US
Goodwill [Line Items]
Beginning balance	24.6		23.2
Acquisition	(1.4)	[1]
Ending balance	23.2		23.2
Other
Goodwill [Line Items]
Beginning balance			3.6
Acquisition	3.6	[1]
Ending balance	$ 3.6		$ 3.6

[1] See Note 18 for additional discussion of the goodwill recorded by the Company during Fiscal 2014.