Product Warranty and Recall Campaigns - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 29, 2019	Dec. 31, 2018	Sep. 30, 2018
Product Information
Liability for recall campaigns	$ 40.5	$ 73.3	$ 23.9
Operating Expense
Product Information
Supplier recoveries	$ 28.0
Parts & accessories and general merchandise
Product Information
Standard product warranty, period	1 year
All Countries, Excluding Japan | Motorcycles
Product Information
Standard product warranty, period	2 years
Japan | Motorcycles
Product Information
Standard product warranty, period	3 years