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Financial Instruments and Risk Management (Effect of mark to market hedge derivative instruments on Condensed Consolidated Statements of Income) (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 04, 2015
Jun. 28, 2014
Jul. 04, 2015
Jun. 28, 2014
Foreign Exchange Contract | Selling, General and Administrative Expenses [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amounts of Gain Recognized in Income $ (5,046) $ (322) $ 1,576 $ 372