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Other Current Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
VAT receivable $ 10,945 $ 9,348
Income tax receivable 8,137 4,716
Prepaid and other current assets 4,349 3,155
Total other current assets $ 23,431 $ 17,219