Retirement Benefits (Components Of Net Periodic Benefit Cost For Defined Benefit Plans And Other Postretirement Plans) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 486,000	$ 460,000
Interest cost	1,092,000	1,132,000
Expected return on plan assets	(1,211,000)	(1,198,000)
Net amortization	1,591,000	1,081,000
Net periodic benefit cost	1,958,000	1,475,000
Non-U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	342,000	202,000
Interest cost	557,000	574,000
Expected return on plan assets	(257,000)	(277,000)
Net amortization	83,000	110,000
Net periodic benefit cost	725,000	609,000
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	190,000.000	173,000.000
Interest cost	229,000.000	259,000.000
Net amortization	(37,000.000)	(39,000.000)
Net periodic benefit cost	$ 382,000.000	$ 393,000.000