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) (USD $) In Thousands	12 Months Ended
	Sep. 30, 2011
Pension Plans, Defined Benefit [Member]
Prior service (benefit) cost	$ 66
Net actuarial (gains) losses	1,191
United States Pension Plans of US Entity, Defined Benefit [Member]
Prior service (benefit) cost	75
Net actuarial (gains) losses	524
Foreign Pension Plans, Defined Benefit [Member]
Prior service (benefit) cost	(9)
Net actuarial (gains) losses	$ 667