Investments in Unconsolidated Affiliates (Summary of Investment in Joint Venture, Income Statement Data) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Equity Method Investments [Line Items]
Net sales	$ 386.6	$ 347.3	$ 1,078.0	$ 982.9
Gross profit	164.1	141.4	437.7	377.5
Net earnings	76.9	69.5	202.7	177.0
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Partnership Interest [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	122.6	117.8	374.5	343.4
Gross profit	72.5	68.5	225.3	200.9
Net earnings	$ 52.9	$ 49.1	$ 165.1	$ 144.5