CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Net sales	$ 355.9	$ 341.8	$ 1,071.6	$ 1,025.7
Cost of goods and services sold	246.0	236.3	733.5	697.6
Gross profit	109.9	105.5	338.1	328.1
Research and development	9.6	9.6	29.5	28.2
Selling, general and administrative expenses	56.0	56.1	169.9	174.9
Other expense (income) (Note 11)	0.3	0.1	1.3	(0.5)
Operating profit	44.0	39.7	137.4	125.5
Loss on debt extinguishment	0	0	0	0.2
Interest expense	4.5	4.4	12.7	13.1
Interest income	1.8	0.4	2.7	1.4
Income before income taxes	41.3	35.7	127.4	113.6
Income tax expense	11.7	10.6	35.5	29.5
Equity in net income of affiliated companies	1.4	1.7	3.8	4.6
Net income	$ 31.0	$ 26.8	$ 95.7	$ 88.7
Net income per share:
Basic (in dollars per share)	$ 0.44	$ 0.38	$ 1.35	$ 1.28
Diluted (in dollars per share)	$ 0.43	$ 0.37	$ 1.32	$ 1.25
Weighted average shares outstanding:
Basic (in shares)	71.0	69.8	70.8	69.4
Diluted (in shares)	72.6	71.4	72.5	70.9
Dividends declared per share	$ 0.11	$ 0.10	$ 0.31	$ 0.29