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Derivative Instruments - Financial Information Related to Cash Flow Hedges (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Derivative [Line Items]        
Unrealized gains (losses) on hedging transactions, Gross $ (1,312) $ (5,261) $ 448 $ (8,599)
Unrealized losses on hedging transactions, (Income) tax expense (benefit) (305) (1,315) 103 (2,407)
Unrealized losses on hedging transactions, Net (1,007) (3,946) 345 (6,192)
Cash Flow Hedging [Member]
       
Derivative [Line Items]        
Unrealized gains (losses) on hedging transactions, Gross     448 (8,599)
Unrealized losses on hedging transactions, (Income) tax expense (benefit)     103 (2,407)
Unrealized losses on hedging transactions, Net     $ 345 $ (6,192)