Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operations and Disposal Groups [Abstract]
Disposal Group, Including Discontinued Operation, Revenue									$ 40.9	$ 1,275.0	$ 1,265.9
Disposal Group, Including Discontinued Operation, Costs of Goods Sold									40.2	1,264.7	1,259.8
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)									0.7	10.3	6.1
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax									(0.5)	1.4	(6.7)
Discontinued Operation, Tax Effect of Discontinued Operation									0.2	(0.7)	2.4
(Loss) income from discontinued operations, net of tax	$ 0	$ (0.2)	$ (0.2)	$ 0.1	$ (0.5)	$ (1.8)	$ (0.2)	$ 3.2	$ (0.3)	$ 0.7	$ (4.3)