Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 261.5	$ 258.0
Cost of products sold	187.2	190.1
Gross profit	74.3	67.9
Selling expense	9.5	8.6
Research and development expense	3.2	3.3
General expense	27.4	25.6
Total nonmanufacturing expenses	40.1	37.5
Restructuring and impairment expense	0.1	0.0
Operating profit	34.1	30.4
Interest expense	6.9	7.8
Other income (expense), net	0.6	(0.6)
Income from continuing operations before income taxes and income from equity affiliates	27.8	22.0
Provision for income taxes	5.3	4.4
Loss from equity affiliates, net of income taxes	0.0	(0.2)
Income from continuing operations	22.5	17.4
Net income	$ 22.5	$ 17.4
Net income per share - basic:
Income per share from continuing operations (in dollars per share)	$ 0.72	$ 0.57
Net income per share - basic (in dollars per share)	0.72	0.57
Net income per share – diluted:
Income per share from continuing operations (in dollars per share)	0.72	0.56
Net income per share - diluted (in dollars per share)	$ 0.72	$ 0.56
Weighted average shares outstanding:
Basic (in shares)	30,712,300	30,620,600
Diluted (in shares)	30,910,000.0	30,716,700