Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 177.8	$ 172.8
Cost of sales	134.2	125.4
Gross profit	43.6	47.4
Selling, engineering, general and administrative expenses	31.5	29.6
Acquisition and integration related expenses	0.5	0.5
Restructuring	0.3	1.2
Operating income	11.3	16.1
Interest expense	0.6	0.4
Write off of Deferred Debt Issuance Cost	0.0	0.3
Other income, net	(0.3)	(0.7)
Income from continuing operations before income taxes	11.0	16.1
Income tax expense	3.8	5.7
Income from continuing operations	7.2	10.4
Gain from discontinued operations and disposal, net of income tax expense of $0.1 and $4.4, respectively	0.1	3.2
Net income	$ 7.3	$ 13.6
Basic earnings per share:
Earnings from continuing operations (usd per share)	$ 0.12	$ 0.17
Gain from discontinued operations and disposal, net of tax (usd per share)	0.00	0.05
Net earnings per share (usd per share)	0.12	0.22
Diluted earnings per share:
Earnings from continuing operations (usd per share)	0.12	0.17
Gain from discontinued operations and disposal, net of tax (usd per share)	0.00	0.05
Net earnings per share (usd per share)	$ 0.12	$ 0.22
Weighted average common shares outstanding:
Basic (shares)	59.6	62.1
Diluted (shares)	60.3	63.0
Cash dividends declared per common share (usd per share)	$ 0.07	$ 0.07