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Hedges Included in Consolidated Statements of Income (Detail) (Foreign exchange contracts not designated as hedging, Fair Value Hedging, Other income (expense), net, Foreign Exchange Contract, USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Foreign exchange contracts not designated as hedging | Fair Value Hedging | Other income (expense), net | Foreign Exchange Contract
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (Loss) on Derivatives Recognized in Income $ 1,269 $ 955