Finance Receivables - Recorded Investment Of Retail and Wholesale Finance Receivables By Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 27, 2021	Dec. 31, 2020	Jun. 28, 2020
Financing Receivable, Recorded Investment
Total	$ 7,247,765	$ 6,833,944	$ 7,391,006
Wholesale
Financing Receivable, Recorded Investment
2021	500,490
2020	38,408	391,151	531,266
2019	26,449	72,048	286,627
2018	11,888	13,443	32,181
2017	4,581	7,887	9,135
2016 & Prior	2,431	2,297	6,031
2015 & Prior		2,923	4,847
Total	584,247	489,749	870,087
Wholesale | Non-Performing
Financing Receivable, Recorded Investment
2021	0
2020	0	0	0
2019	0	0	2,376
2018	0	0	1,774
2017	0	0	107
2016 & Prior	0	0	25
2015 & Prior		0	43
Total	0	0	4,325
Wholesale | Doubtful
Financing Receivable, Recorded Investment
2021	0
2020	0	0	579
2019	0	0	1,009
2018	0	0	188
2017	0	0	0
2016 & Prior	0	0	0
2015 & Prior		0	0
Total	0	0	1,776
Wholesale | Substandard
Financing Receivable, Recorded Investment
2021	0
2020	0	0	944
2019	0	0	966
2018	0	0	53
2017	0	0	0
2016 & Prior	0	0	0
2015 & Prior		0	0
Total	0	0	1,963
Wholesale | Special Mention
Financing Receivable, Recorded Investment
2021	0
2020	0	658	5,345
2019	0	365	5,281
2018	0	31	564
2017	0	0	0
2016 & Prior	0	0	0
2015 & Prior		0	1,805
Total	0	1,054	12,995
Wholesale | Medium Risk
Financing Receivable, Recorded Investment
2021	0
2020	0	1,925	6,690
2019	0	242	3,587
2018	0	0	301
2017	0	0	63
2016 & Prior	0	0	0
2015 & Prior		0	0
Total	0	2,167	10,641
Wholesale | Low Risk
Financing Receivable, Recorded Investment
2021	500,490
2020	38,408	388,568	517,708
2019	26,449	71,441	273,408
2018	11,888	13,412	29,301
2017	4,581	7,887	8,965
2016 & Prior	2,431	2,297	6,006
2015 & Prior		2,923	2,999
Total	$ 584,247	$ 486,528	$ 838,387