Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net sales	$ 425.2	$ 386.6	$ 1,232.5	$ 1,078.0
Cost of goods sold	246.7	222.5	728.3	640.3
Gross profit (loss)	178.5	164.1	504.2	437.7
Selling, general and administrative expenses	90.1	77.6	252.1	223.1
Loss related to change in fair value of contingent consideration	0.1	0.2	0.5	0.6
(Gain) loss on sales and impairment of fixed assets, net	(0.9)	0.2	(0.8)	0.3
Equity (earnings) from unconsolidated affiliates, net	(28.0)	(25.2)	(86.5)	(78.7)
Operating income	117.2	111.3	338.9	292.4
Interest expense	8.2	10.5	25.3	30.6
Other non-operating (income), net	(0.5)	(3.0)	(1.9)	(9.3)
Earnings before income taxes	109.5	103.8	315.5	271.1
Income tax expense	23.2	26.9	72.3	68.4
Net earnings	86.3	76.9	243.2	202.7
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(0.9)	0.3	0.9	(0.9)
Derivative (loss), net	0.0	(5.7)	(1.8)	(5.0)
Pension and postretirement adjustments	0.6	(1.0)	1.9	(2.3)
Total other comprehensive (loss) income, net of tax	(0.3)	(6.4)	1.0	(8.2)
Total comprehensive income	$ 86.0	$ 70.5	$ 244.2	$ 194.5
Net earnings per share of common stock:
Basic	$ 2	$ 1.76	$ 5.6	$ 4.63
Diluted	$ 1.98	$ 1.75	$ 5.56	$ 4.61
Average number of common shares outstanding:
Basic	43.2	43.7	43.4	43.8
Diluted	43.6	43.9	43.7	44.0