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Ordinary dividends - Additional Information (Detail) - $ / shares | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Forecast [Member] |  |
Disclosure of Dividends [line items] |  |
Dividend payable date | Jul. 09, 2021 |
Interim period amount [member] |  |
Disclosure of Dividends [line items] |  |
Interim dividend per ordinary share | $ 0.125 | $ 0.1
Previous period final amount [member] |  |
Disclosure of Dividends [line items] |  |
Final dividend per share |  | $ 0.14

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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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- Definition Disclosure of Dividends [line items] + References No definition available. + Details
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- Definition Dividend payable date. + References No definition available. + Details
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- Definition Interim dividends ordinary shares per share. + References No definition available. + Details
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- Details
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- Details
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- Details
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Period Type: |