Restructuring Charges (Schedule Of Accrued Restructuring Balances) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 717	$ 2,309
Restructuring charges	7,084	2,200
Cash Payment	(4,997)	(3,790)
Non-Cash Activity	(1,690)
Foreign Exchange Adjustments	(23)	(2)
Ending Balance	1,091	717
2013 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5,590
Cash Payment	(3,387)
Non-Cash Activity	(1,224)
Foreign Exchange Adjustments	(26)
Ending Balance	953
2012 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	704
Restructuring charges	1,596	1,793
Cash Payment	(1,697)	(1,097)
Non-Cash Activity	(466)
Foreign Exchange Adjustments	1	8
Ending Balance	138	704
2011 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	13	1,853
Restructuring charges	(102)	272	4,858
Cash Payment	87	(2,102)
Foreign Exchange Adjustments	2	(10)
Ending Balance		13	1,853
2010 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		54
Restructuring charges		48
Cash Payment		(102)
2009 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		402
Restructuring charges		87
Cash Payment		(489)
Severance [Member] | 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,202
Cash Payment	(2,003)
Foreign Exchange Adjustments	(79)
Ending Balance	120
Severance [Member] | 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	538
Restructuring charges	660	1,529
Cash Payment	(1,262)	(998)
Foreign Exchange Adjustments	98	7
Ending Balance	34	538
Severance [Member] | 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		189
Restructuring charges		408
Cash Payment		(611)
Foreign Exchange Adjustments		14
Severance [Member] | 2010 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		34
Restructuring charges		(4)
Cash Payment		(30)
Lease Facility Costs [Member] | 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	142
Cash Payment	(139)
Foreign Exchange Adjustments	(3)
Lease Facility Costs [Member] | 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	798	55
Cash Payment	(328)	(54)
Non-Cash Activity	(466)
Foreign Exchange Adjustments	(4)	(1)
Lease Facility Costs [Member] | 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	13	1,664
Restructuring charges	(102)	(153)
Cash Payment	87	(1,474)
Foreign Exchange Adjustments	2	(24)
Ending Balance		13
Lease Facility Costs [Member] | 2009 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		402
Restructuring charges		87
Cash Payment		(489)
Other Exit Costs [Member] | 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,246
Cash Payment	(1,245)
Non-Cash Activity	(1,224)
Foreign Exchange Adjustments	56
Ending Balance	833
Other Exit Costs [Member] | 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	166
Restructuring charges	138	209
Cash Payment	(107)	(45)
Foreign Exchange Adjustments	(93)	2
Ending Balance	104	166
Other Exit Costs [Member] | 2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		17
Cash Payment		(17)
Other Exit Costs [Member] | 2010 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		20
Restructuring charges		52
Cash Payment		$ (72)