Pension Plans (Details 2) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Contributions made to the plan	$ 1.9	$ 1.9
U.S. Plan
Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Contributions made to the plan	0.9	0.8
Foreign Plan
Defined Contribution Pension And Other Postretirement Plans Disclosure [Line Items]
Contributions made to the plan	$ 1.0	$ 1.1