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Earnings And Dividends Per Share - Additional Information (Detail) (Stock Options and Restricted Stock [Member])
In Thousands, unless otherwise specified
9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Stock Options and Restricted Stock [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 3,446 10,992