Pension And Other Postretirement Benefits (Schedule Of Amounts Recognized In Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plan Disclosure [Line Items]
Beginning balance, deferred taxes	$ (582)	$ 967
Beginning balance, accumulated other comprehensive income (loss), net of tax	(51,880)
Tax rate adjustments, accumulated other comprehensive income (loss), net of tax	(47,878)	(1,392)	8,296
Impact of currency translation, accumulated other comprehensive income (loss), net of tax	(13,423)	(18,402)	49,907
Ending balance, deferred taxes	(27,492)	(582)	967
Ending balance, accumulated other comprehensive income (loss), net of tax	(159,353)	(51,880)
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance, prior service cost (credit)	431	507
Beginning balance, net (gain) or loss	143,206	139,000
Beginning balance, deferred taxes	(52,313)	(50,965)
Beginning balance, accumulated other comprehensive income (loss), net of tax	91,324	88,542
Net amortization and deferral, prior service cost (credit)	(32)	(67)
Net amortization and deferral, net (gain) or loss	(3,986)	(4,236)
Net amortization and deferral, deferred taxes	1,449	1,529
Net amortization and deferral, accumulated other comprehensive income (loss), net of tax	(2,569)	(2,774)
Settlement, net (gain) or loss	5	20
Settlement, deferred taxes	(2)	(11)
Settlement, accumulated other comprehensive income (loss), net of tax	3	9
Tax rate adjustments, deferred taxes	(58)	344
Tax rate adjustments, accumulated other comprehensive income (loss), net of tax	(58)	344
Actuarial changes in benefit obligation, net (gain) or loss	74,215	8,982
Actuarial changes in benefit obligation, deferred taxes	(26,959)	(3,371)
Actuarial changes in benefit obligation, accumulated other comprehensive income (loss), net of tax	47,256	5,611
Divestiture of businesses, prior service cost (credit)	(148)
Divestiture of businesses, net (gain) or loss	(9,260)
Divestiture of businesses, deferred taxes	3,415
Divestiture of businesses, accumulated other comprehensive income (loss), net of tax	(5,993)
Impact of currency translation, prior service cost (credit)		(9)
Impact of currency translation, net (gain) or loss	77	(560)
Impact of currency translation, deferred taxes	(20)	161
Impact of currency translation, accumulated other comprehensive income (loss), net of tax	57	(408)
Ending balance, prior service cost (credit)	251	431
Ending balance, net (gain) or loss	204,257	143,206
Ending balance, deferred taxes	(74,488)	(52,313)
Ending balance, accumulated other comprehensive income (loss), net of tax	130,020	91,324
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance, prior service cost (credit)	509	587
Beginning balance, initial obligation	364	550
Beginning balance, net (gain) or loss	5,422	7,314
Beginning balance, deferred taxes	(1,873)	(2,639)
Beginning balance, accumulated other comprehensive income (loss), net of tax	4,422	5,812
Net amortization and deferral, prior service cost (credit)	56	(78)
Net amortization and deferral, initial obligation	(110)	(186)
Net amortization and deferral, net (gain) or loss	99	(174)
Net amortization and deferral, deferred taxes	(17)	163
Net amortization and deferral, accumulated other comprehensive income (loss), net of tax	28	(275)
Tax rate adjustments, deferred taxes	(4)	(51)
Tax rate adjustments, accumulated other comprehensive income (loss), net of tax	(4)	(51)
Actuarial changes in benefit obligation, net (gain) or loss	5,047	(1,718)
Actuarial changes in benefit obligation, deferred taxes	(1,882)	654
Actuarial changes in benefit obligation, accumulated other comprehensive income (loss), net of tax	3,165	(1,064)
Divestiture of businesses, prior service cost (credit)	(658)
Divestiture of businesses, initial obligation	(152)
Divestiture of businesses, net (gain) or loss	(3,723)
Divestiture of businesses, deferred taxes	1,450
Divestiture of businesses, accumulated other comprehensive income (loss), net of tax	(3,083)
Ending balance, prior service cost (credit)	(93)	509
Ending balance, initial obligation	102	364
Ending balance, net (gain) or loss	6,845	5,422
Ending balance, deferred taxes	(2,326)	(1,873)
Ending balance, accumulated other comprehensive income (loss), net of tax	$ 4,528	$ 4,422