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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest income recognized:
Interest income recognized on a cash basis	$ 0.2	$ 1.0	$ 0.7	$ 1.6
Retail
Interest income recognized:
Interest income recognized on a cash basis		0.1		0.1
Customer Retail | Fleet
Interest income recognized:
Interest income recognized on a cash basis	$ 0.2	$ 0.9	0.6	1.4
Customer Retail | Owner/Operator
Interest income recognized:
Interest income recognized on a cash basis			$ 0.1	$ 0.1