Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Detail)

v3.5.0.2
Basis of Presentation (Detail)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 11, 2016
Oct. 01, 2016
USD ($)
Oct. 03, 2015
USD ($)
Oct. 01, 2016
USD ($)
Oct. 03, 2015
USD ($)
Business Acquisition          
Research and development, design and related engineering   $ 22.2 $ 22.5 $ 67.5 $ 66.1
Convertible Class B Stock          
Business Acquisition          
Date of payment of dividend to shareholders       Oct. 11, 2016  
Subsequent Event | Convertible Class B Stock          
Business Acquisition          
Common stock conversion 0.15