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Income Taxes (Tables)
9 Months Ended
Oct. 01, 2011
Income Taxes [Abstract] 
Summary Of Effective Tax Rate
     Three Months Ended     Nine Months Ended  
     October 1, 2011     October 2, 2010     October 1, 2011     October 2, 2010  

Effective tax rate

     28.8     33.0     29.7     29.8