Retirement Benefits (Schedule of Amounts Expected to be Amortized from Accumulated Other Comprehensive Income (Loss) and Reported as a Component of Net Periodic Benefit Cost During the Next Fiscal Year) (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2016 USD ($)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	$ 383
Net actuarial (gains) losses	2,387
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	383
Net actuarial (gains) losses	1,854
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	0
Net actuarial (gains) losses	$ 533