Income Taxes (Schedule of Income Tax Expense (Benefit) by Location) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current
Domestic	$ 0.4	$ 26.8	$ 5.2
Foreign	22.9	17.6	16.2
Total	23.3	44.4	21.4
Deferred
Domestic	(0.6)	(18.8)	(2.9)
Foreign	(3.0)	(1.8)	(0.3)
Total	(3.6)	(20.6)	(3.2)
Total
Domestic	(0.2)	8.0	2.3
Foreign	19.9	15.8	15.9
Total	$ 19.7	$ 23.8	$ 18.2