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Financial Instruments and Fair Value Measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Fair Value, Measurements, Recurring [Member]    
Financial assets carried at fair value:    
Forward currency asset contracts $ 423 $ 370
Total financial assets carried at fair value 423 370
Financial liabilities carried at fair value:    
Earn-out consideration 10,406 18,672
Total financial liabilities carried at fair value 10,406 $ 18,672
Fair Value, Inputs, Level 2 [Member]    
Financial assets carried at fair value:    
Forward currency asset contracts 423  
Total financial assets carried at fair value 423  
Fair Value, Inputs, Level 3 [Member]    
Financial liabilities carried at fair value:    
Earn-out consideration 10,406  
Total financial liabilities carried at fair value $ 10,406