Acquired Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Acquired Intangible Assets [Line Items]
Weighted Average Amortization Period for Amortizable Intangible Asset Acquisitions	9 years
Lease rights
Acquired Intangible Assets [Line Items]
Amortizable	$ 2,276	$ 1,855	$ 978
Weighted Average Amortization Period for Amortizable Intangible Asset Acquisitions	9 years 3 months 18 days	9 years 10 months 24 days	9 years 10 months 24 days
Other
Acquired Intangible Assets [Line Items]
Amortizable	$ 173	$ 46	$ 126
Weighted Average Amortization Period for Amortizable Intangible Asset Acquisitions	5 years	5 years	5 years