Condensed Consolidated Statements of Earnings and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales	$ 321.0	$ 280.0	$ 603.6	$ 531.9
Cost of goods sold	203.1	175.1	383.5	339.5
Gross profit	117.9	104.9	220.1	192.4
Selling, general and administrative expenses	61.5	60.0	118.6	114.2
Loss (gain) related to change in fair value of contingent consideration	6.1	(9.7)	6.2	(9.5)
Equity (earnings) from joint venture	(21.3)	(23.7)	(39.5)	(44.7)
Operating income	71.6	78.3	134.8	132.4
Interest expense	5.8	5.6	10.9	11.3
Other non-operating (income), net	(1.4)	(1.6)	(2.7)	(2.9)
Earnings from continuing operations before income taxes	67.2	74.3	126.6	124.0
Income tax expense	15.0	19.2	30.0	31.4
Earnings from continuing operations	52.2	55.1	96.6	92.6
Loss from disposal of discontinued businesses, net of tax expense of $- ,$- and $-, $1.7	0.0	0.0	0.0	(2.1)
Net loss from discontinued operations	0.0	0.0	0.0	(2.1)
Net earnings	52.2	55.1	96.6	90.5
Other comprehensive income, net of tax:
Foreign currency translation adjustments	(0.9)	0.5	(0.2)	1.1
Derivative gain, net	3.0	1.1	13.6	4.9
Pension and postretirement adjustments	0.1	0.2	0.7	0.4
Total other comprehensive income	2.2	1.8	14.1	6.4
Total comprehensive income	$ 54.4	$ 56.9	$ 110.7	$ 96.9
Earnings per share of common stock, continuing operations:
Basic	$ 1.12	$ 1.15	$ 2.06	$ 1.93
Diluted	1.11	1.14	2.05	1.92
Loss per share of common stock, discontinued operations:
Basic	0	0	0	(0.04)
Diluted	0	0	0	(0.04)
Net earnings per share of common stock:
Basic	1.12	1.15	2.06	1.89
Diluted	$ 1.11	$ 1.14	$ 2.05	$ 1.88
Average number of common shares outstanding:
Basic	46.6	47.7	46.9	47.8
Diluted	46.7	48.1	47.0	48.1