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Derivative Instruments - Schedule of Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Forward Interest Rate Swaps Designated in Hedging Relationship (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 27, 2014
Jun. 28, 2014
Dec. 31, 2013
Sep. 28, 2013
Jun. 29, 2013
Dec. 31, 2012
Derivatives And Hedging Activities [Line Items]            
Total accumulated other comprehensive gains (losses) $ (3,691) $ (8,092) $ (9,781) $ (9,987) $ (9,595) $ (10,325)
Forward Interest Rate Swap Contracts [Member]
           
Derivatives And Hedging Activities [Line Items]            
Unrealized loss on forward interest rate swap hedging, Gross (1,224)     0    
Unrealized loss on forward interest rate swap hedging, Income tax benefit (443)     0    
Total accumulated other comprehensive gains (losses) $ (781)     $ 0