CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	$ 1,509.1	$ 1,399.8	$ 1,421.4
Cost of goods and services sold	1,008.0	944.0	973.6
Gross profit	501.1	455.8	447.8
Research and development	36.8	34.1	37.3
Selling, general and administrative expenses	239.8	233.0	228.7
Other expense (income) (Note 14)	27.7	60.1	(0.2)
Operating profit	196.8	128.6	182.0
Interest expense	8.1	14.1	16.5
Interest income	1.1	1.6	3.5
Income before income taxes	189.8	116.1	169.0
Income tax expense	54.4	26.3	47.2
Equity in net income of affiliated companies	8.2	5.8	5.3
Net income	$ 143.6	$ 95.6	$ 127.1
Net income per share:
Basic (in dollars per share)	$ 1.96	$ 1.33	$ 1.79
Diluted (in dollars per share)	$ 1.91	$ 1.30	$ 1.75
Weighted average shares outstanding:
Basic (in shares)	73.3	72.0	70.9
Diluted (in shares)	75.0	73.8	72.8
Dividends declared per share (in dollars per share)	$ 0.5	$ 0.46	$ 0.41