Schedule of Minimum Cash Lease Payments (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Contractual cash payments included in the measurement of lease liabilities
Cash outflows for operating leases	$ 209.3	$ 201.4
Cash outflows for finance leases - operating activities	4.1	4.5
Cash outflows for finance leases - financing activities	10.8	11.0
Non-cash amount of leased assets obtained in exchange for:
Operating lease liability additions, net of write-offs	$ 78.5	$ 109.1