Pension And Other Postretirement Benefit Plans (Schedule Of Components Of Net Pension And Postretirement Periodic Benefit Cost (Income)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	$ 3,313	$ 3,313
Interest cost	137	160	225
Prior service cost	(158)	(158)	0
Defined Benefit Plan, Amortization of Gains (Losses)	(8)	0	0
Benefits paid	(210)	9
Benefit obligation at end of year	2,737	3,313	3,313
Funded status	(2,737)	(3,313)
Accrued postretirement obligation	2,737	3,313
Net pension and postretirement periodic benefit cost (income)	(29)	2	225
U.S. Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	261,255	227,207
Service cost	0	0	(159)
Interest cost	11,930	12,099	11,762
Expected return on plan assets	(10,367)	(10,753)	(11,210)
Prior service cost	0	0	264
Defined Benefit Plan, Amortization of Gains (Losses)	(3,553)	(2,252)	(891)
Benefits paid	(9,810)	(8,752)
Transition asset	0	0	0
Curtailment gain	44	0	0
Subtotal - defined benefit plan	5,160	3,598	1,548
Benefit obligation at end of year	286,188	261,255	227,207
Funded status	(121,121)	(118,356)
Subtotal defined contribution plan	0	0	34
Net pension and postretirement periodic benefit cost (income)	5,160	3,598	1,582
Non U.S. Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	48,889	45,683
Service cost	0	172	0
Interest cost	1,997	2,292	2,144
Expected return on plan assets	(2,148)	(2,406)	(2,095)
Prior service cost	0	0	0
Defined Benefit Plan, Amortization of Gains (Losses)	(659)	(675)	(536)
Benefits paid	(3,347)	(2,779)
Transition asset	(136)	(138)	(132)
Curtailment gain	15	0	0
Subtotal - defined benefit plan	387	595	453
Benefit obligation at end of year	52,439	48,889	45,683
Funded status	(5,894)	(6,535)
Subtotal defined contribution plan	0	0	0
Net pension and postretirement periodic benefit cost (income)	$ 387	$ 595	$ 453