Retirement Plans (Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan, Service Cost	$ 0.5	$ 0.4
Defined Benefit Plan, Interest Cost	5.0	5.0
Defined Benefit Plan, Expected Return on Plan Assets	(6.2)	(6.0)
Amortization of actuarial net loss	0.8	0.9
Net periodic benefit cost	$ 0.1	$ 0.3	$ 0.4	$ 1.0
Pension Plan [Member]
Defined Benefit Plan, Service Cost			1.5	1.2
Defined Benefit Plan, Interest Cost			15.0	15.0
Defined Benefit Plan, Expected Return on Plan Assets			(18.5)	(17.9)
Amortization of actuarial net loss			$ (2.4)	$ (2.7)