Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Consolidated Results of Operation of Company with Acquired Business (Detail)

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Acquisitions - Consolidated Results of Operation of Company with Acquired Business (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 27, 2014
Sep. 28, 2013
Business Acquisition [Line Items]        
Sales $ 179,442 $ 89,681 $ 494,956 $ 234,481
Net Income 17,080 7,155 37,731 20,877
Basic earnings per share $ 0.79 $ 0.34 $ 1.74 $ 1.00
Diluted earnings per share $ 0.75 $ 0.32 $ 1.67 $ 0.95
Peco, Inc [Member]
       
Business Acquisition [Line Items]        
Sales   93,517   280,714
Net Income   7,230   23,034
Basic earnings per share   $ 0.35   $ 1.10
Diluted earnings per share   $ 0.33   $ 1.05
Sales 179,442 93,517 494,956 280,714
Net Income $ 17,080 $ 7,230 $ 37,731 $ 23,034
Basic earnings per share $ 0.79 $ 0.35 $ 1.74 $ 1.10
Diluted earnings per share $ 0.75 $ 0.33 $ 1.67 $ 1.05