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, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Schedule of Equity Method Investments [Line Items]
Net sales	$ 425.2	$ 386.6	$ 1,232.5	$ 1,078.0
Gross profit	178.5	164.1	504.2	437.7
Net earnings	86.3	76.9	243.2	202.7
Partnership Interest [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	125.9	122.6	390.0	374.5
Gross profit	76.6	72.5	238.4	225.3
Net earnings	$ 57.9	$ 52.9	$ 179.6	$ 165.1