v2.4.0.6
Summary of Significant Accounting Policies Foreign Currency (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Trading Activity, Gains and Losses, Net [Line Items]      
Foreign Currency Transaction Gain (Loss), before Tax $ 0.5 $ (7.6) $ 5.7