XML 81 R70.htm IDEA: XBRL DOCUMENT v3.8.0.1
Product Warranties - Product Warranty Activity (Detail) - USD ($)
$ in Millions
6 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Balance at Beginning of Period $ 17.0 $ 5.0
Provisions 8.4 4.6
Standard and Extended Product Warranty Accrual, Additions from Business Acquisition 0.0 9.9
Settlements/ Adjustments (9.6) (4.1)
Balance at End of Period $ 15.8 $ 15.4