Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jul. 30, 2011	Jul. 31, 2010	Jul. 30, 2011 Year	Jul. 31, 2010
Expected Amortization Expense [Line Items]
Acquisition of intangible assets, primarily to support the international expansion strategy			$ 33,545,000	$ 1,530,000
Finite-lived intangible assets, amortization expense	$ 700,000	$ 300,000	$ 1,000,000	$ 600,000
Estimated useful life, minimum			15
Estimated useful life, maximum			25
Trademarks
Expected Amortization Expense [Line Items]
Estimated useful life, minimum			15
Estimated useful life, maximum			25