Schedule of Minimum Cash Lease Payments (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities
Cash outflows for operating leases	$ 69.6	$ 69.3
Cash outflows for finance leases - operating activities	1.2	1.4
Cash outflows for finance leases - financing activities	3.5	3.6
Non-cash amount of right-of-use assets obtained in exchange for:
Operating lease liability additions, net of write-offs	$ 9.5	$ 11.8