Reportable Segments and Geographic Information - Segment Information By Geographical Locations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 743,784	$ 847,382	$ 904,132
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	644,224	757,594	838,446
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	4,811	11,137	15,355
Thailand
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	94,749	78,651	50,331
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	99,560	89,788	65,686
Motorcycles
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	3,264,054	4,572,678	4,968,646
Motorcycles | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	2,043,851	2,971,223	3,159,049
Motorcycles | EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	589,943	743,385	893,589
Motorcycles | Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	99,219	210,381	230,211
Motorcycles | Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	137,815	156,644	161,370
Motorcycles | Australia and New Zealand
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	107,891	117,525	147,561
Motorcycles | Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Motorcycles revenue	285,335	373,520	376,866
Financial Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Financial Services revenue	790,323	789,111	748,229
Financial Services | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Financial Services revenue	757,730	754,535	712,898
Financial Services | Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Financial Services revenue	20,353	22,799	23,120
Financial Services | Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Financial Services revenue	3,940	3,342	3,800
Financial Services | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Financial Services revenue	$ 8,300	$ 8,435	$ 8,411