Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - Motorcycles - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Total other intangible assets	$ 9,629
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,979	$ 12,837	$ 7,234
Accumulated Amortization	(3,350)	(2,240)	(1,236)
Total other intangible assets	$ 9,629	$ 10,597	$ 5,998