Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Net sales	$ 325.4	$ 321.0	$ 635.6	$ 603.6
Cost of goods sold	201.4	203.1	399.5	383.5
Gross profit	124.0	117.9	236.1	220.1
Selling, general and administrative expenses	61.9	61.5	124.6	118.6
Loss related to change in fair value of contingent consideration	0.0	6.1	0.0	6.2
Equity (earnings) from joint venture	(24.9)	(21.3)	(45.7)	(39.5)
Operating income	87.0	71.6	157.2	134.8
Interest expense	9.2	5.8	17.9	10.9
Other non-operating (income), net	(2.2)	(1.4)	(4.6)	(2.7)
Earnings before income taxes	80.0	67.2	143.9	126.6
Income tax expense	19.8	15.0	36.4	30.0
Net earnings	60.2	52.2	107.5	96.6
Foreign currency translation adjustments	0.7	(0.9)	0.6	(0.2)
Derivative (loss) gain, net	(0.2)	3.0	(2.4)	13.6
Pension and postretirement adjustments	(0.1)	0.1	0.1	0.7
Total other comprehensive income (loss)	0.4	2.2	(1.7)	14.1
Total comprehensive income	$ 60.6	$ 54.4	$ 105.8	$ 110.7
Net earnings per share of common stock
Basic	$ 1.34	$ 1.12	$ 2.38	$ 2.06
Diluted	$ 1.34	$ 1.11	$ 2.38	$ 2.05
Average number of common shares outstanding:
Basic	44.9	46.6	45.2	46.9
Diluted	45.0	46.7	45.2	47.0