Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Revenues	$ 521.0	$ 507.6	$ 1,518.8	$ 1,496.2
Costs and Expenses:
Cost of providing services and products sold	341.0	325.7	986.5	959.9
Selling, general and administrative	118.4	118.0	352.9	356.8
Research and development costs	2.0	2.3	6.3	8.7
Depreciation	22.2	19.7	64.3	60.5
Amortization	1.4	1.4	4.0	5.1
Restructuring Charges	4.3	1.4	5.4	9.0
Asset Impairment Charges	0.4	0	1.5	88.6
Total costs and expenses	489.7	468.5	1,420.9	1,488.6
Operating Income (Loss)	31.3	39.1	97.9	7.6
Other income (expense), net	2.5	0.8	4.8	2.9
Interest expense	(2.9)	(2.8)	(8.7)	(10.8)
Income (Loss) before Income Taxes	30.9	37.1	94.0	(0.3)
Income tax (benefit) expense	2.7	6.8	13.6	1.7
Income (Loss) from continuing operations	28.2	30.3	80.4	(2.0)
Income (Loss) from Discontinued Operations, net of tax	5.7	(2.4)	2.0	70.6
Net Income	$ 33.9	$ 27.9	$ 82.4	$ 68.6
Basic Earnings Per Common Share:
Continuing operations	$ 0.27	$ 0.27	$ 0.77	$ (0.02)
Discontinued operations	$ 0.06	$ (0.02)	$ 0.02	$ 0.62
Basic Earnings per Common Share	$ 0.33	$ 0.25	$ 0.79	$ 0.60
Diluted Earnings Per Common Share:
Continuing operations	$ 0.26	$ 0.26	$ 0.74	$ (0.02)
Discontinued operations	$ 0.05	$ (0.02)	$ 0.02	$ 0.62
Diluted Earnings per Common Share	$ 0.31	$ 0.24	$ 0.76	$ 0.60
Weighted Average Common Shares Outstanding
Basic	103.0	111.2	104.1	114.2
Diluted	107.9	115.5	109.1	114.2
Common Stock, Dividends, Per Share, Declared	$ 0.06	$ 0.05	$ 0.18	$ 0.10