Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified			6 Months Ended
	Aug. 03, 2013	Feb. 02, 2013	Aug. 03, 2013 US	Aug. 03, 2013 UNITED KINGDOM
Income Taxes [Line Items]
Tax years subject to examination			Tax years ending after November 1, 2008	Tax years ending after January 31, 2010
Unrecognized tax benefits	$ 0	$ 4.5
Accrued interest related to unrecognized tax benefits	$ 0	$ 0.2