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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Jan. 01, 2013
Jan. 03, 2012
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 250,000,000 250,000,000
Common stock, shares issued 87,812,022 85,863,313
Treasury stock, shares 34,414,222 31,196,128
Preferred stock
    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Junior participating cumulative preferred stock
    
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 150,000 150,000
Preferred stock, shares issued 0 0