Leases - Schedule of Cash Flow Information Related to Lease Liabilities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee Disclosure [Abstract]
Cash paid for amounts included in the measurement of lease liabilities, Operating cash flows from operating leases	$ 91.5	$ 95.9	$ 90.3
Cash paid for amounts included in the measurement of lease liabilities, Operating cash flows from finance leases	0.1	0.1	0.1
Cash paid for amounts included in the measurement of lease liabilities, Financing cash flows from finance leases	1.8	1.9	1.6
Operating lease assets obtained in exchange for new operating lease liabilities	58.9	66.2	59.2
Finance lease assets obtained in exchange for new finance lease liabilities	$ 1.5	$ 2.8	$ 0.0