Retirement Benefits (Components Of Net Periodic Benefit Cost For Defined Benefit Plans And Other Postretirement Plans) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 399	$ 311	$ 1,319	$ 1,249
Interest cost	1,116	1,114	3,380	3,393
Expected return on plan assets	(1,171)	(1,081)	(3,567)	(3,297)
Net amortization	1,261	1,047	3,423	3,301
Net periodic benefit cost	1,605	1,391	4,555	4,646
Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	207	173	620	357
Interest cost	587	519	1,756	1,071
Expected return on plan assets	(278)	(80)	(837)	(163)
Net amortization	111	72	334	148
Net periodic benefit cost	627	684	1,873	1,413
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	173	130	519	390
Interest cost	259	259	778	778
Net amortization	(39)	(87)	(117)	(262)
Net periodic benefit cost	$ 393	$ 302	$ 1,180	$ 906