Summary of Significant Accounting Policies Revenue Recognition (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Summary of Significant Accounting Policies [Abstract]      
Shipping and Handling Revenue $ 15.8 $ 13.2 $ 8.9
Sales Return Reserve 5.4 4.9  
Gift Card Liability, Current 23.2 22.9  
Revenue Recognition, Gift Cards, Breakage $ 3.5 $ 2.6 $ 2.3