Retirement Benefits (Schedule of Net Perioodic Benefit Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Pension Plans, Defined Benefit [Member]
Service cost	$ 1,527	$ 1,165	$ 4,284	$ 3,502
Interest cost	1,911	2,025	5,768	6,071
Expected return on plan assets	(2,685)	(2,398)	(8,102)	(7,192)
Amortization of: Net actuarial (gain) loss	457	298	1,383	892
Amortization of: Prior service cost (benefit)	17	16	50	49
Net periodic retirement pension (beneift) cost	1,227	1,106	3,383	3,322
Contributions paid	1,989	607	7,246	3,239
United States Pension Plans of US Entity, Defined Benefit [Member]
Service cost	1,273	883	3,487	2,648
Interest cost	1,393	1,454	4,177	4,362
Expected return on plan assets	(2,046)	(1,752)	(6,136)	(5,256)
Amortization of: Net actuarial (gain) loss	344	131	1,031	393
Amortization of: Prior service cost (benefit)	19	19	56	56
Net periodic retirement pension (beneift) cost	983	735	2,615	2,203
Contributions paid	1,550	150	4,550	450
Foreign Pension Plans, Defined Benefit [Member]
Service cost	254	282	797	854
Interest cost	518	571	1,591	1,709
Expected return on plan assets	(639)	(646)	(1,966)	(1,936)
Amortization of: Net actuarial (gain) loss	113	167	352	499
Amortization of: Prior service cost (benefit)	(2)	(3)	(6)	(7)
Net periodic retirement pension (beneift) cost	244	371	768	1,119
Contributions paid	439	457	2,696	2,789
Other Postretirement Benefit Plans, Defined Benefit [Member]
Service cost	18	17	54	52
Interest cost	311	449	933	1,348
Amortization of: Net actuarial (gain) loss	(17)	22	(51)	68
Amortization of: Prior service cost (benefit)	(40)	(137)	(119)	(412)
Net periodic retirement pension (beneift) cost	272	351	817	1,056
Contributions paid	$ 490	$ 673	$ 1,833	$ 1,966