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Derivative Instruments - Financial Information Related to Hedging of Net Assets Included in Consolidated Statement of Earnings (Detail)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2014
USD ($)
Jun. 29, 2013
USD ($)
Jun. 28, 2014
USD ($)
Jun. 29, 2013
USD ($)
Dec. 31, 2013
USD ($)
Jun. 28, 2014
Foreign Exchange Forward [Member]
Euro/US Dollar [Member]
EUR (€)
Dec. 31, 2013
Foreign Exchange Forward [Member]
Euro/US Dollar [Member]
EUR (€)
Jun. 28, 2014
Foreign Exchange Forward [Member]
Pound/US Dollar [Member]
GBP (£)
Dec. 31, 2013
Foreign Exchange Forward [Member]
Pound/US Dollar [Member]
GBP (£)
Derivative [Line Items]                  
Change in gains (losses) from foreign exchange derivatives $ 516 $ (862) $ 541 $ 719          
Gain (loss) on net foreign currency assets (473) 400 (790) (1,279)          
Foreign exchange gain (loss) 43 (462) (249) (560)          
Notional balance of outstanding contracts versus the dollar           36,600 41,021 835 0
Net fair value of outstanding contracts $ 70   $ 70   $ 33