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Financial Assets at Fair Value Through Profit or Loss - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
IFRS Statement [Line Items] |  |  |
Other current assets | $ 35,368 | $ 18,559 |
Income tax liabilities | 13,466 | 2,903 |
Financial assets at fair value through profit or loss, category [member] |  |  |
IFRS Statement [Line Items] |  |  |
Reclassification into financial assets at fair value through profit or loss | $ 472 | $ 3,732 | $ 2,032

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