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Property and Equipment (Detail) (USD $)
In Thousands
Jul. 30, 2011
Jan. 29, 2011
Jul. 31, 2010
Property, Plant and Equipment [Line Items]      
Property and equipment, at cost $ 1,478,208 $ 1,432,802 $ 1,393,899
Less: Accumulated depreciation (842,668) (789,682) (736,768)
Property and equipment, net $ 635,540 $ 643,120 $ 657,131