Restructuring And Thailand Flood Related Charges, Net Of Insurance (Schedule Of Accrued Restructuring Balances) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 4,009	$ 3,684
Restructuring Charges	4,515	6,959
Cash Payment	(6,024)	(6,305)
Non-Cash Activity	(355)	(105)
Foreign Exchange Adjustments	164	(224)
Ending Balance	2,309	4,009
2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	4,858
Cash Payment	(2,668)
Non-Cash Activity	(355)
Foreign Exchange Adjustments	18
Ending Balance	1,853
2010 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	2,476
Restructuring Charges	(322)	5,825
Cash Payment	(2,189)	(3,353)
Foreign Exchange Adjustments	89	4
Ending Balance	54	2,476
2009 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1,533	3,684
Restructuring Charges	(21)	1,134
Cash Payment	(1,167)	(2,952)
Non-Cash Activity		(105)
Foreign Exchange Adjustments	57	(228)
Ending Balance	402	1,533
Severance [Member] | 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	2,386
Cash Payment	(2,215)
Foreign Exchange Adjustments	18
Ending Balance	189
Severance [Member] | 2010 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1,767
Restructuring Charges	(503)	4,164
Cash Payment	(1,317)	(2,401)
Foreign Exchange Adjustments	87	4
Ending Balance	34	1,767
Severance [Member] | 2009 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		1,099
Restructuring Charges		134
Cash Payment		(1,235)
Foreign Exchange Adjustments		2
Lease Facility Costs [Member] | 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,958
Cash Payment	(294)
Ending Balance	1,664
Lease Facility Costs [Member] | 2010 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		494
Cash Payment		(494)
Lease Facility Costs [Member] | 2009 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1,506	2,472
Restructuring Charges		99
Cash Payment	(1,161)	(835)
Foreign Exchange Adjustments	57	(230)
Ending Balance	402	1,506
Other Exit Costs [Member] | 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	514
Cash Payment	(159)
Non-Cash Activity	(355)
Other Exit Costs [Member] | 2010 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	709
Restructuring Charges	181	1,167
Cash Payment	(872)	(458)
Foreign Exchange Adjustments	2
Ending Balance	20	709
Other Exit Costs [Member] | 2009 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	27	113
Restructuring Charges	(21)	901
Cash Payment	(6)	(882)
Non-Cash Activity		(105)
Ending Balance		$ 27