Retirement Benefits (Schedule of Net Perioodic Benefit Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Pension Plans, Defined Benefit [Member]
Service cost	$ 614	$ 697	$ 2,083	$ 2,103
Interest cost	1,722	2,016	5,194	6,070
Expected return on plan assets	(3,207)	(3,413)	(9,647)	(10,268)
Amortization of: Net (gains) losses	385	146	1,159	439
Amortization of: Prior service (benefit) cost	96	96	288	288
Net periodic retirement pension (benefit) cost	(390)	(458)	(923)	(1,368)
Contributions paid	212	143	740	1,365
United States Pension Plans of US Entity, Defined Benefit [Member]
Service cost	424	504	1,522	1,513
Interest cost	1,309	1,489	3,935	4,475
Expected return on plan assets	(2,535)	(2,662)	(7,612)	(7,994)
Amortization of: Net (gains) losses	323	99	969	297
Amortization of: Prior service (benefit) cost	96	96	288	288
Net periodic retirement pension (benefit) cost	(383)	(474)	(898)	(1,421)
Contributions paid	84	0	84	0
Foreign Pension Plans, Defined Benefit [Member]
Service cost	190	193	561	590
Interest cost	413	527	1,259	1,595
Expected return on plan assets	(672)	(751)	(2,035)	(2,274)
Amortization of: Net (gains) losses	62	47	190	142
Amortization of: Prior service (benefit) cost	0	0	0	0
Net periodic retirement pension (benefit) cost	(7)	16	(25)	53
Contributions paid	128	143	656	1,365
Other Postretirement Benefit Plans, Defined Benefit [Member]
Service cost	5	7	16	22
Interest cost	263	308	787	925
Amortization of: Net (gains) losses	39	(18)	117	(54)
Amortization of: Prior service (benefit) cost	(40)	(40)	(119)	(119)
Net periodic retirement pension (benefit) cost	267	257	801	774
Contributions paid	$ 588	$ 570	$ 1,809	$ 1,471