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Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Other Current Assets [Member]    
Summary of Derivative Instruments [Abstract]    
Derivative assets $ 176 $ 333
Other Current Liabilities [Member]    
Summary of Derivative Instruments [Abstract]    
Derivative liabilities 42  
Foreign Exchange Contract [Member]    
Summary of Derivative Instruments [Abstract]    
Average notional amount $ 9,621