Other Income, Net - Schedule of Components of Other Income (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Interest income and other:
Interest and dividends	$ 4.8	$ 1.1
Securities transactions, net	0.1	(0.2)
Total	4.9	0.9
Currency transactions, net	5.4	(1.5)
Insurance recoveries	1.7
Other, net	1.1	$ 0.6
Total	$ 13.1