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Employee Benefit Plans - Change in Plan Assets (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
Change in Plan Assets  
Plan assets at January 1, 2020 $ 8,784
Actual return 285
Employer contribution 0
Benefit paid (431)
Effect of exchange rate changes (477)
Plan assets at June 30, 2020 $ 8,161