Restructuring (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	$ 5,644
European Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 9,000
Employee Severance [Member] | European Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		8,700
Payments for Restructuring	5,514
Lease Charges [Member] | European Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 300
European Leases and Equipment Write-Off [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	$ 130