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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. 29, 2013
USD ($)
Jun. 30, 2012
USD ($)
Jun. 29, 2013
USD ($)
Jun. 30, 2012
USD ($)
Dec. 31, 2012
USD ($)
Jun. 29, 2013
Foreign Exchange Forward [Member]
Euro/US Dollar [Member]
EUR (€)
Dec. 31, 2012
Foreign Exchange Forward [Member]
Euro/US Dollar [Member]
EUR (€)
Jun. 29, 2013
Foreign Exchange Forward [Member]
Pound/US Dollar [Member]
GBP (£)
Dec. 31, 2012
Foreign Exchange Forward [Member]
Pound/US Dollar [Member]
GBP (£)
Derivative [Line Items]                  
Change in gains (losses) from foreign exchange derivatives $ (862) $ 3,476 $ 719 $ 1,441          
Gain (loss) on net foreign currency assets 400 (3,556) (1,279) (1,863)          
Foreign exchange loss (462) (80) (560) (422)          
Notional balance of outstanding contracts versus the dollar           39,544 37,598 666 3,810
Net fair value of outstanding contracts $ (170)   $ (170)   $ 18