Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended			9 Months Ended				12 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2012 Domestic Tax Authority [Member]	Sep. 30, 2012 Foreign Tax Authority	Jun. 30, 2012 Foreign Tax Authority	Sep. 30, 2013 Foreign Tax Authority	Sep. 30, 2012 Foreign Tax Authority	Sep. 30, 2013 Minimum	Sep. 30, 2013 Maximum	Dec. 31, 2012 Tax Year 2007 to 2012 [Member] Foreign Tax Authority	Sep. 30, 2013 Tax Year 2013 [Member] Foreign Tax Authority	Sep. 30, 2013 Tax Year 2013 [Member] Foreign Tax Authority
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount					$ 112.7	$ 0.5	$ 17.7	$ 7.0	$ 18.2
Foreign income taxed at a lower effective rate	(3.1)	(26.8)	(4.1)	(36.9)
Statutes of limitation, period										3 years	5 years
Income Tax Contingency, Potential Assessment												44.5
Unrecognized Tax Benefits, Interest on Income Taxes Expense													0.3	1.0
Income tax expense (benefit)	14.6	(13.6)	6.6	(185.2)
Income (loss) from continuing operations before income tax	$ 41.0	$ 41.6	$ 33.6	$ (53.1)
Effective tax rate	35.60%		19.60%