Lease Accounting - Schedule of Minimum Cash Lease Payments (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash paid for amounts included in the measurement of lease liabilities
Cash outflows for operating leases	$ 67.2	$ 68.5
Cash outflows for finance leases - operating activities	1.7	1.4
Cash outflows for finance leases - financing activities	3.8	3.7
Non-cash amount of right-of-use assets obtained in exchange for:
Operating lease liability additions, net	57.7	40.7
Finance lease liability additions, net	$ 0.0	$ 27.0