Interest Income Recognized on Cash Basis for Finance Receivables that are on Non-Accrual Status (Detail) - Financial Services - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Interest income recognized:
Interest income recognized on a cash basis	$ 1.2	$ 0.2	$ 2.3	$ 0.7
Customer Retail | Fleet
Interest income recognized:
Interest income recognized on a cash basis	1.1	$ 0.2	2.1	0.6
Customer Retail | Owner/Operator
Interest income recognized:
Interest income recognized on a cash basis	$ 0.1		$ 0.2	$ 0.1