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Income Taxes (Income before Income Tax, Domestic and Foreign) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Income Tax Disclosure [Abstract]        
Income (loss) before income taxes $ 29.3 $ 20.2 $ 43.5 $ 23.7