Finance Receivables - Schedule of Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Financing Receivable, Recorded Investment, Past Due
Financing receivable	$ 7,725,515	$ 7,689,477	$ 8,412,081
Financing receivable, nonaccrual	451	526	96
Current
Financing Receivable, Recorded Investment, Past Due
Financing receivable	7,470,518	7,371,031	8,170,936
Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	254,997	318,446	241,145
31-60 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	151,945	182,215	149,305
61-90 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	55,636	69,975	50,009
Greater than 90 Days Past Due and Still Accruing
Financing Receivable, Recorded Investment, Past Due
Financing receivable	46,965	65,730	41,735
Retail finance receivables
Financing Receivable, Recorded Investment, Past Due
Financing receivable	6,593,043	6,681,106	6,993,930
Financing receivable, nonaccrual	0	0	0
Retail finance receivables | Current
Financing Receivable, Recorded Investment, Past Due
Financing receivable	6,342,019	6,368,447	6,753,883
Retail finance receivables | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	251,024	312,659	240,047
Retail finance receivables | 31-60 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	150,788	178,752	148,590
Retail finance receivables | 61-90 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	54,983	69,257	49,790
Retail finance receivables | Greater than 90 Days Past Due and Still Accruing
Financing Receivable, Recorded Investment, Past Due
Financing receivable	45,253	64,650	41,667
Wholesale finance receivables
Financing Receivable, Recorded Investment, Past Due
Financing receivable	1,132,472	1,008,371	1,418,151
Financing receivable, nonaccrual	451	526	96
Wholesale finance receivables | Current
Financing Receivable, Recorded Investment, Past Due
Financing receivable	1,128,499	1,002,584	1,417,053
Wholesale finance receivables | Total Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	3,973	5,787	1,098
Wholesale finance receivables | 31-60 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	1,157	3,463	715
Wholesale finance receivables | 61-90 Days Past Due
Financing Receivable, Recorded Investment, Past Due
Financing receivable	653	718	219
Wholesale finance receivables | Greater than 90 Days Past Due and Still Accruing
Financing Receivable, Recorded Investment, Past Due
Financing receivable	$ 1,712	$ 1,080	$ 68