Summary of Financial Services Lease Revenues by Lease Type (Detail) - Financial Services - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Entity Wide Information Revenue From External Customer [Line Items]
Finance lease revenues	$ 271.5	$ 184.1	$ 187.0
Operating lease revenues	736.9	788.8	831.6
Total lease revenues	$ 1,008.4	$ 972.9	$ 1,018.6