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Stock Based Compensation (Summary Of The Activity For Non-Employee Directors Stock Unit Awards) (Details) (Non-Employee Director Stock Unit Awards [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Jan. 29, 2012
years
Jan. 30, 2011
years
Jan. 31, 2010
years
Jan. 25, 2009
years
Non-Employee Director Stock Unit Awards [Member]
       
Number of Units        
Beginning balance 30 35 41  
Stock units granted 18 30 35  
Stock units vested (30) (35) (41)  
Stock units forfeited           
Ending balance 18 30 35 41
Recorded Liability        
Beginning balance $ 2,414 $ 1,389 $ 633  
Change in liability 1,459 1,024 756  
Ending balance 3,873 2,414 1,389 633
Weighted Averaged Grant Date Fair Value (per unit)        
Beginning balance $ 16.43 $ 16.18 $ 13.81  
Stock units granted $ 27.60 $ 16.43 $ 16.18  
Stock units vested $ 16.43 $ 16.18    
Ending balance $ 27.60 $ 16.43 $ 16.18 $ 13.81
Aggregate Unrecognized Compensation        
Beginning balance 269 232 239  
Ending balance $ 216 $ 269 $ 232 $ 239
Period Over Which Expected to be Recognized (in years)        
Beginning balance, years 0.4 0.4 0.4 0.4
Ending balance, years 0.4 0.4 0.4 0.4