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 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Business Acquisition [Line Items]        
Sales $ 174,563 $ 70,833 $ 315,514 $ 144,800
Net Income 13,144 5,158 20,651 13,722
Basic earnings per share $ 0.73 $ 0.30 $ 1.15 $ 0.79
Diluted earnings per share $ 0.70 $ 0.28 $ 1.09 $ 0.75
Peco, Inc [Member]
       
Business Acquisition [Line Items]        
Sales   92,286   187,197
Net Income   6,647   15,803
Basic earnings per share   $ 0.38   $ 0.91
Diluted earnings per share   $ 0.37   $ 0.87
Sales 174,563   315,514  
Net Income $ 13,144   $ 20,651  
Basic earnings per share $ 0.73   $ 1.15  
Diluted earnings per share $ 0.70   $ 1.09