Retirement Benefits ( Schedule Of Costs Of Retirement Plans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Pension Costs [Member]
Service cost	$ 1,170	$ 1,080
Interest cost	2,023	1,967
Expected return on plan assets	(2,397)	(2,292)
Amortization of: Net actuarial (gains) losses	298	299
Amortization of: Net prior service (benefit) cost	17	17
Net periodic (beneift) cost	1,111	1,071
Contributions	2,031	2,702
Pension Costs [Member] | United States Pension Plans of US Entity, Defined Benefit [Member]
Service cost	883	858
Interest cost	1,454	1,412
Expected return on plan assets	(1,752)	(1,673)
Amortization of: Net actuarial (gains) losses	131	78
Amortization of: Net prior service (benefit) cost	19	19
Net periodic (beneift) cost	735	694
Contributions	150	0
Pension Costs [Member] | Foreign Pension Plans, Defined Benefit [Member]
Service cost	287	222
Interest cost	569	555
Expected return on plan assets	(645)	(619)
Amortization of: Net actuarial (gains) losses	167	221
Amortization of: Net prior service (benefit) cost	(2)	(2)
Net periodic (beneift) cost	376	377
Contributions	1,881	2,702
Other Postretirement Benefit Costs [Member]
Service cost	17	23
Interest cost	449	493
Amortization of: Net actuarial (gains) losses	23	32
Amortization of: Net prior service (benefit) cost	(137)	(218)
Net periodic (beneift) cost	352	330
Contributions	$ 501	$ 777