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Other Current Assets (Tables)
9 Months Ended
Sep. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of other current assets net book value The following table shows the breakdown in other current assets net book value for the presented periods:
September 30, 2021December 31, 2020
(in thousands)
Prepayments to suppliers$8,151 $5,613 
Other debtors4,785 5,991 
Prepaid expenses10,249 9,801 
Net book value at end of period$23,185 $21,405