Restructuring Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Sep. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0.5	$ 3.1	$ 1.7	$ 3.1
Loss on write-down of assets held for sale	4.4	$ 15.4	8.4	$ 22.5
Level 3
Restructuring Cost and Reserve [Line Items]
Loss on write-down of assets held for sale			8.4
Carrying value of assets held for sale	$ 12.7		$ 12.7		$ 11.4