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Taxes Payable (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Tax Payable [Abstract] |  |
Income Tax payable | $ 7,610 | $ 7,610
Current tax payable | 2,440 | 2,440
Tax payable, noncurrent | $ 5,170 | $ 5,170
Income tax liability of installment, description | An election is available for the U.S. shareholders of a foreign company to pay the tax liability in installments over a period of eight years with 8% of net tax liability in the first five years, 15% in the sixth year, 20% in the seventh year, and 25% in the eighth year. | An election is available for the U.S. shareholders of a foreign company to pay the tax liability in installments over a period of eight years with 8% of net tax liability in the first five years, 15% in the sixth year, 20% in the seventh year, and 25% in the eighth year.

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