Discontinued Operations (Schedule of Operating Results) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales	$ 0.0	$ 8.5	$ 52.3
Income before taxes	0.0	0.7	3.8
Income tax provision	0.0	0.0	0.2
Income from operations of discontinued operations	0.0	0.7	3.6
Gain (loss) on sale of business and impairment/write-down, net of tax	0.0	3.9	(13.6)
Income (loss) from Discontinued Operations, net of tax	$ 0.0	$ 4.6	$ (10.0)