Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income
Net sales	$ 857.3	$ 794.0
Cost of goods sold	609.6	548.6
Selling and administrative expenses	139.7	124.1
Research and development expenses	12.8	11.3
Other income, net	(1.5)	(0.6)
Earnings before interest and income taxes	96.7	110.6
Interest expense, net	6.6	8.4
Earnings before income taxes from continuing operations	90.1	102.2
Income tax expense	28.6	33.7
Income from continuing operations	61.5	68.5
Discontinued operations:
Income before income taxes	0.5	0.0
Income tax expense	0.2	0.0
Income from discontinued operations	0.3	0.0
Net income	$ 61.8	$ 68.5
Basic earnings per share attributable to common shares:
(Loss) income from continuing operations (in dollars per share)	$ 0.95	$ 1.06
Loss from discontinued operations (in dollars per share)	0.00	0.00
Basic (loss) earnings per share (in dollars per share)	0.95	1.06
Diluted earnings per share attributable to common shares:
(Loss) income from continuing operations (in dollars per share)	0.94	1.05
Loss from discontinued operations (in dollars per share)	0.00	0.00
Diluted (loss) earnings per share (in dollars per share)	$ 0.94	$ 1.05
Average shares outstanding (in thousands):
Basic (in shares)	64,353	64,018
Diluted (in shares)	64,848	64,876
Dividends declared and paid	$ 22.7	$ 19.5
Dividends declared and paid per share (in dollars per share)	$ 0.35	$ 0.30
Comprehensive Income
Net (loss) income	$ 61.8	$ 68.5
Other comprehensive income (loss):
Foreign currency translation	11.4	10.2
Accrued post-retirement benefit liability, net of tax	0.4	0.4
Other, net of tax	(0.1)	(0.2)
Other comprehensive income	11.7	10.4
Comprehensive income	$ 73.5	$ 78.9