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Share-Based Payments (Tables)
3 Months Ended
May 05, 2012
Share-Based Payments [Abstract]  
Weighted average fair value of the stock option awards granted, weighted average key assumptions
                 
    Thirty-Six Weeks Ended  
    May 5,
2012
    May 7,
2011
 

Expected price volatility

    31     31

Risk-free interest rate

    0.7     1.0

Weighted average expected lives (in years)

    5.3       4.3  

Forfeiture rate

    10     10

Dividend yield

    0     0