Investments in Unconsolidated Affiliates (Summary of Investment in Joint Venture, Income Statement Data) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule of Equity Method Investments [Line Items]
Net sales	$ 365.1	$ 325.4	$ 691.4	$ 635.6
Gross profit	149.3	124.0	273.6	236.1
Net earnings	65.9	60.2	125.8	107.5
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Partnership Interest Member
Schedule of Equity Method Investments [Line Items]
Net sales	126.1	116.1	251.9	225.6
Gross profit	71.1	70.1	147.8	132.4
Net earnings	$ 55.2	$ 51.6	$ 112.2	$ 95.4