XML 93 R80.htm IDEA: XBRL DOCUMENT v3.8.0.1
Commitments and Contingencies - Summary of Product Warranty Accrual Activity (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Commitments and Contingencies Disclosure [Abstract]        
Beginning of period $ 18.9 $ 16.1 $ 16.0 $ 16.4
Additions 1.1 2.8 10.4 8.8
Usage (2.2) (3.3) (8.6) (9.6)
End of period $ 17.8 $ 15.6 $ 17.8 $ 15.6