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Derivative Financial Instruments (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Canada
   
Forward contracts designated as cash flow hedges    
U.S. dollar forward contracts purchased, total notional amount $ 41.5  
U.S. dollar forward contracts outstanding 41.5 52.3
U.S. dollar forward contracts outstanding, maximum remaining maturity period (in months) 11 months  
Europe
   
Forward contracts designated as cash flow hedges    
U.S. dollar forward contracts purchased, total notional amount 148.9  
U.S. dollar forward contracts outstanding $ 90.0 $ 71.6
U.S. dollar forward contracts outstanding, maximum remaining maturity period (in months) 11 months