Defined Benefit Pension and Other Postretirement Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Contribution made to Pension Plan			$ 8.4	$ 11.0
Expected contribution to pensions plans during remainder of fiscal year			2.8
Net cost to sponsor unfunded and non-qualified supplemental executive retirement plans	$ 0.7	$ 0.6	$ 2.0	$ 2.3