Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Summary of Acquired Intangible Assets (Detail)

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Intangible Assets - Summary of Acquired Intangible Assets (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jul. 04, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets    
Weighted average life 8 years  
Gross carrying amount $ 146,983 $ 122,005
Accumulated amortization $ 32,753 27,014
Patents    
Finite-Lived Intangible Assets    
Weighted average life 6 years  
Gross carrying amount $ 2,146 2,146
Accumulated amortization $ 1,171 1,077
Non-compete Agreement    
Finite-Lived Intangible Assets    
Weighted average life 5 years  
Gross carrying amount $ 2,600 0
Accumulated amortization $ 238 0
Trade Names    
Finite-Lived Intangible Assets    
Weighted average life 9 years  
Gross carrying amount $ 10,230 8,304
Accumulated amortization $ 1,748 1,288
Completed and Unpatented Technology    
Finite-Lived Intangible Assets    
Weighted average life 7 years  
Gross carrying amount $ 24,079 18,107
Accumulated amortization $ 5,584 4,396
Backlog and Customer Relationships    
Finite-Lived Intangible Assets    
Weighted average life 12 years  
Gross carrying amount $ 107,928 93,448
Accumulated amortization $ 24,012 $ 20,253