Equity Investment (Summary of Investment in Joint Venture, Income Statement Data) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule of Equity Method Investments [Line Items]
Net sales	$ 325.4	$ 321.0	$ 635.6	$ 603.6
Gross profit	124.0	117.9	236.1	220.1
Net earnings	60.2	52.2	107.5	96.6
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] | Partnership Interest Member
Schedule of Equity Method Investments [Line Items]
Net sales	116.1	129.0	225.6	239.4
Gross profit	70.1	61.3	132.4	116.1
Net earnings	$ 51.6	$ 45.1	$ 95.4	$ 83.3