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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Income Tax Examination [Line Items]    
Provision (benefit) for income taxes $ 1,041 $ 1,179
Effective Income Tax Rate, Continuing Operations 11.70% 7.10%
Australia Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2012  
Belgium Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2013  
Brazil Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2011  
China Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2013  
France Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2013  
German Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2013  
India Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2013  
Israel Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2012  
Italy Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2011  
Japan Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2012  
Korea Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2012  
Mexican Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2011  
Netherlands Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2011  
Switzerland Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2011  
United Kingdom Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2015  
Uruguay Tax Authority [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2011  
U.S Federal Income Tax [Member] | Minimum [Member] | U.S. Internal Revenue Service [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2003  
U.S Federal Income Tax [Member] | Maximum [Member] | U.S. Internal Revenue Service [Member]    
Income Tax Examination [Line Items]    
Tax years subject to examination 2015