Summary of Significant Accounting Policies Inventories (Details) (USD $)
In Millions, unless otherwise specified
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Summary of Significant Accounting Policies [Abstract]      
Inventory, Lower of Cost or Market Value Adjustment $ 7.6 $ 9.0  
Inventory, Shrink $ 16.5 $ 18.2 $ 15.0