Income Taxes (Schedule of Provision (Benefit) for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
U.S. federal tax	$ 29.2	$ 31.3	$ 52.2
U.S. state and local tax	(0.1)	1.7	6.0
Non-U.S. tax	28.1	20.6	13.6
Total current	57.2	53.6	71.8
Deferred:
U.S. federal tax	(13.4)	(2.8)	(13.8)
U.S. state and local tax	1.3	(0.4)	(2.3)
Non-U.S. tax	(2.8)	1.1	(12.3)
Total deferred	(14.9)	(2.1)	(28.4)
Total provision for income taxes	42.3	51.5	43.4
Excess tax benefits from share-based compensation	$ 1.2	$ 0.9	$ 0.8