CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]
Net sales	$ 368.9	$ 344.5	$ 715.7	$ 683.9
Cost of goods and services sold	247.1	233.6	487.5	461.3
Gross profit	121.8	110.9	228.2	222.6
Research and development	9.9	9.5	19.9	18.6
Selling, general and administrative expenses	57.5	59.7	113.9	118.7
Other expense (income) (Note 11)	0.3	(0.8)	1.0	(0.6)
Operating profit	54.1	42.5	93.4	85.9
Loss on debt extinguishment	0	0	0	0.2
Interest expense	4.2	4.1	8.2	8.7
Interest income	0.5	0.4	0.9	1.0
Income before income taxes	50.4	38.8	86.1	78.0
Income tax expense	14.0	10.3	23.8	18.9
Equity in net income of affiliated companies	1.2	1.7	2.4	2.8
Net income	$ 37.6	$ 30.2	$ 64.7	$ 61.9
Net income per share:
Basic (in dollars per share)	$ 0.53	$ 0.44	$ 0.92	$ 0.90
Diluted (in dollars per share)	$ 0.52	$ 0.43	$ 0.89	$ 0.88
Weighted average shares outstanding:
Basic (in shares)	70.8	69.5	70.7	69.2
Diluted (in shares)	72.4	70.8	72.4	70.6
Dividends declared per share	$ 0.10	$ 0.10	$ 0.20	$ 0.19