Restructuring Charges (Schedule Of Components Of Restructuring Charges) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 2,542
Facility lease costs	2,462
Other exit costs	3,301
Total restructuring charges	8,305	$ 1,049
Americas [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	1,564
Facility lease costs	2,462
Other exit costs	3,099
Total restructuring charges	7,125
Europe [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	472
Facility lease costs	0
Other exit costs	202
Total restructuring charges	674
Asia [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	506
Facility lease costs	0
Other exit costs	0
Total restructuring charges	506
2015 [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	2,542
Facility lease costs	2,462
Other exit costs	3,301
Total restructuring charges	8,305
2015 [Member] | Americas [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	1,564
Facility lease costs	2,462
Other exit costs	3,099
Total restructuring charges	7,125
2015 [Member] | Europe [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	472
Facility lease costs	0
Other exit costs	202
Total restructuring charges	674
2015 [Member] | Asia [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	506
Facility lease costs	0
Other exit costs	0
Total restructuring charges	$ 506
2014 [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		876
Other exit costs		3
Total restructuring charges		879
2014 [Member] | Americas [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		827
Other exit costs		0
Total restructuring charges		827
2014 [Member] | Asia [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		49
Other exit costs		3
Total restructuring charges		$ 52
2013 [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs			$ 2,202
Facility lease costs			142
Other exit costs			3,246
Total restructuring charges			5,590
2013 [Member] | Americas [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs			2,202
Facility lease costs			142
Other exit costs			2,118
Total restructuring charges			4,462
2013 [Member] | Asia [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs			0
Facility lease costs			0
Other exit costs			1,128
Total restructuring charges			$ 1,128