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Financial Instruments - Additional Information (Detail)
6 Months Ended
Jul. 02, 2011
USD ($)
Jul. 02, 2011
Foreign Exchange Forward
USD ($)
Jul. 02, 2011
Foreign Exchange Forward
Currency, British Pound Sterling
GBP (£)
Jul. 02, 2011
Foreign Exchange Forward
Currency, Euro
EUR (€)
Derivative [Line Items]        
Forward contracts to sell British Pounds     £ 29,000,000  
Forward contracts to purchase Euro Dollars       32,400,000
Fair value of the forward contracts   400,000    
Fair value of interest rate swaps (2,500,000)      
Change in fair value of interest rate swaps $ (300,000)