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Additional Financial Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Other Income and Expenses [Abstract] |  |  |
FX gains (losses) | $ 4,234 | $ 31 | $ (478)
PIK Note impairment | 0 | 0 | (84,314)
Litigation settlement | 0 | 0 | 4,495
Remeasurement gain (loss) on financial instrument | 0 | 0 | 3,849
Income from Tax credit, Investments and Government refunds | 1,597 | 1,039 | 519
Income from sale of intangible assets | 3,477 | 5,518 | 0
Others | 227 | 801 | 1,012
Total | 9,535 | $ 7,389 | $ (74,917)
Legal settlement | 4,200 |  |
IP settlement from third parties | $ 300 |  |

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