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Shareholders' Equity - Earnings Per Share (Details)
3 Months Ended 6 Months Ended
Jul. 30, 2011
Jul. 31, 2010
Jul. 30, 2011
Jul. 31, 2010
Class of Stock [Line Items]        
Weighted Average Number Diluted Shares Outstanding Adjustment     0 0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Other Than Stock Options and Restricted Stock Awards, Amount 0 0 0 0
Stock Options [Member]
       
Class of Stock [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1,800,000 1,000,000 1,400,000 800,000
Restricted Stock [Member]
       
Class of Stock [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 300,000