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Stock-Based Compensation (Tables)
3 Months Ended
Apr. 28, 2012
Stock-Based Compensation [Abstract]  
Weighted Average Assumptions Relating To The Valuation Of Stock Options
       
    Thirteen Weeks  
    Ended  
    April 30, 2011  
Weighted average fair value of grants $ 6.70  
Expected volatility   66 %
Expected term (years)   4.5  
Risk-free interest rate   2.0 %
Expected dividend yield   1.5 %
Summary Of Stock Option Activity
         
        Weighted Average
  Number of Shares     Exercise Price
Outstanding, beginning of period 6,303,378   $ 13.09
Granted    
Exercised (764,493 )   6.43
Canceled or expired (76,921 )   14.65
Outstanding, end of period 5,461,964     14.00
Exercisable at April 28, 2012 3,915,276     14.34
Summary Of Restricted Stock Activity
         
        Weighted Average
        Grant Date Fair
  Number of Shares     Value
Unvested, beginning of period 2,107,951   $ 11.36
Granted 1,445,910     15.01
Vested (279,851 )   13.30
Canceled (58,970 )   12.20
Unvested, end of period 3,215,040     12.79
Summary Of Performance-Based Restricted Stock Unit Activity
         
        Weighted Average
        Grant Date Fair
  Number of Units     Value
Unvested, beginning of period   $
Granted 689,096     15.01
Vested    
Canceled (2,700 )   15.01
Unvested, end of period 686,396     15.01