Discontinued Operations, Assets Held for Sale and Divestitures (Schedule of Disposal Groups, Including Discontinued Operations (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 1.5
Operating income		(1.6)		5.6
Income on sale of discontinued operations		0.2		5.0
Income from discontinued operations, net of tax		(1.4)	0	10.6
Multiemployer Plans, Withdrawal Obligation	$ 1.0		$ 1.0