Summary of Financial Services Lease Revenues by Lease Type (Detail) - Financial Services - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Entity Wide Information Revenue From External Customer [Line Items]
Finance lease revenues	$ 341.8	$ 271.5	$ 184.1
Operating lease revenues	660.7	736.9	788.8
Total lease revenues	$ 1,002.5	$ 1,008.4	$ 972.9