Retirement Benefits (Schedule of Net Perioodic Benefit Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Pension Plans, Defined Benefit [Member]
Service cost	$ 697	$ 1,135	$ 2,103	$ 3,400
Interest cost	2,016	2,218	6,070	6,631
Expected return on plan assets	(3,413)	(3,213)	(10,268)	(9,607)
Amortization of: Net actuarial (gain) loss	146	249	439	738
Amortization of: Prior service (benefit) cost	96	18	288	53
Curtailment (gain) loss	0	(915)	0	(915)
Net periodic retirement pension (beneift) cost	(458)	(508)	(1,368)	300
Contributions paid	143	276	1,365	2,743
United States Pension Plans of US Entity, Defined Benefit [Member]
Service cost	504	872	1,513	2,616
Interest cost	1,489	1,602	4,475	4,815
Expected return on plan assets	(2,662)	(2,432)	(7,994)	(7,299)
Amortization of: Net actuarial (gain) loss	99	83	297	248
Amortization of: Prior service (benefit) cost	96	19	288	56
Curtailment (gain) loss	0	0	0	0
Net periodic retirement pension (beneift) cost	(474)	144	(1,421)	436
Contributions paid	0	100	0	400
Foreign Pension Plans, Defined Benefit [Member]
Service cost	193	263	590	784
Interest cost	527	616	1,595	1,816
Expected return on plan assets	(751)	(781)	(2,274)	(2,308)
Amortization of: Net actuarial (gain) loss	47	166	142	490
Amortization of: Prior service (benefit) cost	0	(1)	0	(3)
Curtailment (gain) loss	0	(915)	0	(915)
Net periodic retirement pension (beneift) cost	16	(652)	53	(136)
Contributions paid	143	176	1,365	2,343
Other Postretirement Benefit Plans, Defined Benefit [Member]
Service cost	7	11	22	35
Interest cost	308	358	925	1,074
Amortization of: Net actuarial (gain) loss	(18)	(50)	(54)	(150)
Amortization of: Prior service (benefit) cost	(40)	(40)	(119)	(119)
Net periodic retirement pension (beneift) cost	257	279	774	840
Contributions paid	$ 570	$ 481	$ 1,471	$ 1,849