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Restructuring (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
employee
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve $ 382 $ 651 $ 0
Restructuring charge 102 651  
Payments (384)    
Foreign currency fluctuation $ 13    
Q1 2016 Restructuring      
Restructuring Cost and Reserve [Line Items]      
Restructuring charge   651  
Number of employees eliminated | employee 10    
Q2 2016 Restructuring      
Restructuring Cost and Reserve [Line Items]      
Restructuring charge $ 78    
Number of employees eliminated | employee 5    
Employee Termination Costs | Q1 2016 Restructuring      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve $ 380 480 0
Restructuring charge 0 480  
Payments (113)    
Foreign currency fluctuation 13    
Employee Termination Costs | Q2 2016 Restructuring      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve 2 0 0
Restructuring charge 78 0  
Payments (76)    
Foreign currency fluctuation 0    
Other | Q1 2016 Restructuring      
Restructuring Cost and Reserve [Line Items]      
Restructuring Reserve 0 171 $ 0
Restructuring charge 24 $ 171  
Payments (195)    
Foreign currency fluctuation $ 0