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Summary Of Company's Asset Impairments (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Jan. 28, 2012
Oct. 29, 2011
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Restructuring and Impairment Costs [Line Items]          
Intangible asset impairment     $ 44.9 $ 37.8  
Property, equipment and other asset impairments     8.8 11.2 1.5
Total 81.2 81.2 53.7 81.2 1.5
United States
         
Restructuring and Impairment Costs [Line Items]          
Property, equipment and other asset impairments     5.7 3.2  
Total     5.7 28.9  
CANADA
         
Restructuring and Impairment Costs [Line Items]          
Property, equipment and other asset impairments     0.4 1.1  
Total     0.4 1.3  
Australia
         
Restructuring and Impairment Costs [Line Items]          
Property, equipment and other asset impairments     0.2 0.5  
Total     0.2 0.6  
Europe
         
Restructuring and Impairment Costs [Line Items]          
Intangible asset impairment     44.9 37.8  
Property, equipment and other asset impairments     2.5 6.4  
Total     $ 47.4 $ 50.4