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Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Classes Of Share Capital [Line Items] |  |  |
Dividend per share distributed to owners | $ 0 | $ 0 | $ 0.08
Dividends distributed | $ 0 | $ 0 | $ 1,106
Bottom of range [Member] |  |  |
Disclosure Of Classes Of Share Capital [Line Items] |  |  |
Intended percentage of net post-tax audited consolidated profits attributable to shareholders to pay for cash dividends | 25.00% |  |

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- Definition Intended percentage of net post-tax audited consolidated profits attributable to shareholders to pay for cash dividends. + References No definition available. + Details
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- Definition The amount of dividends paid by the entity on ordinary shares. [Refer: Ordinary shares [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2020-01-01 -Paragraph 16A -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2020-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of dividends paid per ordinary share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 34 -IssueDate 2020-01-01 -Paragraph 16A -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=34&code=ifrs-tx-2020-en-r&anchor=para_16A_f&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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