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Income Taxes (Details 1) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Sources of income before income taxes      
Domestic $ 5.6 $ (42.6) $ 11.1
Foreign 89.6 95.2 59.6
Income before income taxes $ 95.2 $ 52.6 $ 70.7