Equity Investments (Summary of Investment in Joint Venture, Income Statement Data) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Net sales	$ 1,233.1	$ 1,106.6	$ 936.9
Gross profit	449.1	405.6	333.1
Net earnings	202.9	183.2	(99.1)
WAVE [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	458.2	430.8	343.3
Gross profit	231.1	244.5	194.7
Net earnings	$ 163.7	$ 184.6	$ 137.8