Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 256.4	$ 260.3	$ 784.3	$ 792.6
Cost of products sold	184.2	195.0	565.2	577.9
Gross profit	72.2	65.3	219.1	214.7
Selling expense	8.6	8.9	25.8	27.2
Research expense	3.1	3.6	10.1	11.8
General expense	24.3	21.3	72.0	66.1
Total nonmanufacturing expenses	36.0	33.8	107.9	105.1
Restructuring and impairment expense	1.6	0.4	2.0	1.4
Operating profit	34.6	31.1	109.2	108.2
Interest expense	6.7	7.3	29.6	20.1
Other income (expense), net	1.7	11.2	(1.6)	10.4
Income from continuing operations before income taxes and income from equity affiliates	29.6	35.0	78.0	98.5
Provision (benefit) for income taxes	3.2	(5.6)	12.8	10.4
Income (loss) from equity affiliates, net of income taxes	1.3	0.3	0.4	(0.5)
Income from continuing operations	27.7	40.9	65.6	87.6
Income (loss) from discontinued operations	0.0	0.1	0.0	(0.3)
Net income	$ 27.7	$ 41.0	$ 65.6	$ 87.3
Net income per share - basic:
Income per share from continuing operations (in dollars per share)	$ 0.90	$ 1.33	$ 2.13	$ 2.85
Income (loss) per share from discontinued operations (in dollars per share)	0	0	0	(0.01)
Net income per share - basic (in dollars per share)	0.90	1.33	2.13	2.84
Net income per share – diluted:
Income per share from continuing operations (in dollars per share)	0.90	1.33	2.12	2.84
Income (loss) per share from discontinued operations (in dollars per share)	0	0	0	(0.01)
Net income per share - diluted (in dollars per share)	$ 0.90	$ 1.33	$ 2.12	$ 2.83
Weighted average shares outstanding:
Diluted (in shares)	30,831,900	30,722,800	30,804,700	30,683,100
Basic (in shares)	30,662,800	30,569,600	30,648,400	30,541,600