CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 339.4	$ 316.3
Cost of goods and services sold	227.7	215.2
Gross profit	111.7	101.1
Research and development	9.1	8.3
Selling, general and administrative expenses	59.1	51.3
Restructuring and other items (Note 2)	0.2	(0.2)
Operating profit	43.3	41.7
Loss on debt extinguishment	0.2	0
Interest expense	4.6	4.3
Interest income	0.6	0.4
Income before income taxes	39.1	37.8
Income tax expense	8.6	9.8
Equity in net income of affiliated companies	1.2	1.2
Net income	$ 31.7	$ 29.2
Net income per share:
Basic (in dollars per share)	$ 0.92	$ 0.86
Diluted (in dollars per share)	$ 0.90	$ 0.81
Weighted average shares outstanding:
Basic (in shares)	34.5	33.9
Diluted (in shares)	35.1	37.1
Dividends declared per share (in dollars per share)	$ 0.19	$ 0.18