Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 28, 2012 store country	Jul. 30, 2011	Jul. 28, 2012 store country	Jul. 30, 2011	Jan. 28, 2012
Component of Operating Other Cost and Expense [Line Items]
Number of Stores	1,544		1,544
Number of Countries in which Entity Operates	2		2
Operating Cycle			52 or 53 weeks
Fiscal Period			P53W		P52W
Current Quarter Period	P13W	P13W
Current Quarter Year To Date Period			P26W	P26W
Distribution and Outbound Transportation Costs	$ 39.6	$ 37.0	$ 81.3	$ 77.1
Advertising Expense	$ 21.7	$ 16.8	$ 46.1	$ 38.2