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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 26, 2021	Sep. 27, 2020
Disaggregation of Revenue
Total revenue	$ 1,365,310	$ 1,165,684	$ 4,319,875	$ 3,329,155
Motorcycles and Related Products
Disaggregation of Revenue
Motorcycles revenue	1,160,618	964,029	3,724,225	2,733,091
Motorcycles and Related Products \| Motorcycles
Disaggregation of Revenue
Motorcycles revenue	885,626	684,344	2,931,669	2,030,448
Motorcycles and Related Products \| Parts & Accessories
Disaggregation of Revenue
Motorcycles revenue	204,506	209,808	577,035	513,201
Motorcycles and Related Products \| General Merchandise
Disaggregation of Revenue
Motorcycles revenue	49,424	49,356	155,378	136,321
Motorcycles and Related Products \| Licensing
Disaggregation of Revenue
Motorcycles revenue	8,481	8,894	22,865	21,826
Motorcycles and Related Products \| Other
Disaggregation of Revenue
Motorcycles revenue	12,581	11,627	37,278	31,295
Financial Services
Disaggregation of Revenue
Financial Services	204,692	201,655	595,650	596,064
Financial Services \| Interest income
Disaggregation of Revenue
Financial Services	174,103	174,464	501,645	512,726
Financial Services \| Other
Disaggregation of Revenue
Financial Services	$ 30,589	$ 27,191	$ 94,005	$ 83,338