Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income (loss) from continuing operations before tax [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 12.9	$ (72.2)	$ (75.2)
Domestic Tax Authority [Member]
Income (loss) from continuing operations before tax [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	45.5	(22.4)	(73.6)
Foreign Tax Authority [Member]
Income (loss) from continuing operations before tax [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ (32.6)	$ (49.8)	$ (1.6)