Product Warranty and Recall Campaigns - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Dec. 31, 2019
Product Information
Liability for recall campaigns	$ 29.8	$ 40.5	$ 36.4
Operating Expense
Product Information
Supplier recoveries		$ 28.0
Battery For Electric Motorcycles
Product Information
Unlimited Warranty, Period	5 years
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