Finance Receivables - Changes In Allowance For Credit Losses On Finance Receivables (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 339,379	$ 390,936
Provision for credit losses	28,822	(22,474)
Charge-offs	(41,804)	(34,589)
Recoveries	14,076	12,360
Balance, end of period	340,473	346,233
Retail
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	326,320	371,738
Provision for credit losses	28,614	(22,449)
Charge-offs	(41,804)	(34,589)
Recoveries	14,076	12,360
Balance, end of period	327,206	327,060
Wholesale
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	13,059	19,198
Provision for credit losses	208	(25)
Charge-offs	0	0
Recoveries	0	0
Balance, end of period	$ 13,267	$ 19,173