Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2021	Mar. 29, 2020
Disaggregation of Revenue
Total revenue	$ 1,422,507	$ 1,298,244
Motorcycles and Related Products
Disaggregation of Revenue
Motorcycles revenue	1,232,107	1,099,788
Motorcycles and Related Products \| Motorcycles
Disaggregation of Revenue
Motorcycles revenue	1,016,334	899,365
Motorcycles and Related Products \| Parts & Accessories
Disaggregation of Revenue
Motorcycles revenue	149,859	134,685
Motorcycles and Related Products \| General Merchandise
Disaggregation of Revenue
Motorcycles revenue	50,323	49,160
Motorcycles and Related Products \| Licensing
Disaggregation of Revenue
Motorcycles revenue	5,512	8,029
Motorcycles and Related Products \| Other
Disaggregation of Revenue
Motorcycles revenue	10,079	8,549
Financial services
Disaggregation of Revenue
Financial Services	190,400	198,456
Financial services \| Interest income
Disaggregation of Revenue
Financial Services	159,814	170,001
Financial services \| Other
Disaggregation of Revenue
Financial Services	$ 30,586	$ 28,455

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