Quarterly report pursuant to Section 13 or 15(d)

Fair Value - Fair Value Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail)

v2.4.0.8
Fair Value - Fair Value Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 29, 2013
Dec. 31, 2012
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Interest rate swaps $ (159) $ (218)
Acquisition contingent consideration (746) (814)
Level 1 [Member]
   
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Interest rate swaps      
Acquisition contingent consideration      
Level 2 [Member]
   
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Interest rate swaps (159) (218)
Acquisition contingent consideration      
Level 3 [Member]
   
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]    
Interest rate swaps      
Acquisition contingent consideration $ (746) $ (814)