Interest Income Recognized on Cash Basis for Finance Receivables that are on Non-Accrual Status (Detail) - Financial Services - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest income recognized:
Interest income recognized on a cash basis	$ 0.5	$ 0.7	$ 1.2	$ 2.3
Retail
Interest income recognized:
Interest income recognized on a cash basis				0.1
Customer Retail | Fleet
Interest income recognized:
Interest income recognized on a cash basis	0.4	0.6	1.0	2.0
Customer Retail | Owner/Operator
Interest income recognized:
Interest income recognized on a cash basis	$ 0.1	$ 0.1	$ 0.2	$ 0.2