Retirement Benefits ( Schedule Of Costs Of Retirement Plans) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Pension Costs [Member] | United States [Member]
Service cost	$ 858	$ 911	$ 2,575	$ 2,735
Interest cost	1,412	1,222	4,235	3,667
Expected return on plan assets	(1,673)	(1,189)	(5,020)	(3,569)
Amortization of Transition obligation
Amortization of Net actuarial loss	78	173	234	437
Amortization of Prior service cost (benefit)	19	(65)	56	(195)
Curtailment loss		165		165
Net periodic retirement pension cost	694	1,217	2,080	3,240
Contributions	1,290	940	1,290	940
Pension Costs [Member] | United Kingdom [Member]
Service cost	118	92	350	292
Interest cost	527	483	1,556	1,518
Expected return on plan assets	(572)	(505)	(1,688)	(1,591)
Amortization of Transition obligation
Amortization of Net actuarial loss	165	127	487	398
Net periodic retirement pension cost	238	197	705	617
Contributions	466	392	1,406	1,318
Pension Costs [Member] | Japan [Member]
Service cost	107	97	321	292
Interest cost	45	58	133	178
Expected return on plan assets	(65)	(59)	(195)	(179)
Amortization of Transition obligation		21		64
Amortization of Net actuarial loss	62	54	185	165
Amortization of Prior service cost (benefit)	(2)	(2)	(6)	(6)
Settlement loss		50		50
Net periodic retirement pension cost	147	219	438	564
Contributions			2,250	913
Pension Costs [Member] | Switzerland [Member]
Service cost	48		48
Interest cost	12		12
Expected return on plan assets	(12)		(12)
Amortization of Transition obligation
Net periodic retirement pension cost	48		48
Contributions	36		36
Other Postretirement Benefit Costs [Member]
Service cost	23	30	69	90
Interest cost	494	519	1,481	1,560
Amortization of Net actuarial loss	32	48	96	142
Amortization of Prior service cost (benefit)	(218)	(313)	(653)	(937)
Net periodic retirement pension cost	331	284	993	855
Contributions	$ 879	$ 609	$ 2,473	$ 2,075