CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net sales	$ 1,839.9	$ 1,717.4	$ 1,599.1
Cost of Goods and Services Sold	1,234.2	1,172.0	1,086.2
Gross profit	605.7	545.4	512.9
Research and development	38.9	40.3	39.1
Selling, general and administrative expenses	272.7	262.9	246.0
Other (income) expense	(2.5)	1.9	2.0
Operating profit	296.6	240.3	225.8
Interest expense	8.5	8.4	7.8
Interest income	(3.8)	(2.1)	(1.3)
Other nonoperating expense (income)	0.1	(6.7)	(3.1)
Income before income taxes	291.8	240.7	222.4
Income tax expense	59.0	41.4	80.9
Equity in net income of affiliated companies	(8.9)	(7.6)	(9.2)
Net income	$ 241.7	$ 206.9	$ 150.7
Net income per share:
Basic (in dollars per share)	$ 3.27	$ 2.80	$ 2.04
Diluted (in dollars per share)	$ 3.21	$ 2.74	$ 1.99
Weighted average shares outstanding:
Basic (in shares)	74.0	73.9	73.9
Diluted (in shares)	75.4	75.4	75.8