v3.26.1
Amortized Cost Basis of Finance Receivables for Other Than Insignificant Term Extensions and Payment Delays for Customers in Financial Difficulty (Detail) - Customer Retail - Customers Experiencing Financial Difficulty - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Financing Receivable, Modified [Line Items]      
Amortized Cost Basis $ 2.9 $ 73.8 $ 7.3
Annualized % of total retail portfolio 0.20% 1.80% 0.20%
Fleet      
Financing Receivable, Modified [Line Items]      
Amortized Cost Basis $ 2.9 $ 73.8 $ 7.1
Owner/Operator      
Financing Receivable, Modified [Line Items]      
Amortized Cost Basis     $ 0.2