Segment Results (Reconciliation of Total Consolidated Operating Income to Earnings Before Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Segment Reporting [Abstract]
Total consolidated operating income	$ 70.2	$ 63.2
Interest expense	8.7	5.1
Other non-operating (income), net	(2.4)	(1.3)
Earnings before income taxes	$ 63.9	$ 59.4

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details