XML 76 R53.htm IDEA: XBRL DOCUMENT v3.5.0.2
Income Taxes (Disposal Groups, including Discontinued Operations) (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Income tax expense (benefit) $ 33.1 $ 19.8 $ 18.0