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Treasury Stock (Details 1) (USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended 12 Months Ended
Oct. 29, 2011
Oct. 30, 2010
Jan. 29, 2011
Summary of treasury stock repurchases      
Shares repurchased 2,329,472 7,134 7,134
Total cost $ 63,988 $ 144  
Average price per share $ 27.47 $ 20.24