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Approval of Consolidated Financial Statements - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2023
Disclosure Of Information About Approval Of Consolidated Financial Statements [Abstract] |
Date of approval of financial statements | May 13, 2024

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- Definition The date on which financial statements are authorized for issue. + References No definition available. + Details
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Period Type: | duration

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- Definition Disclosure of information about approval of consolidated financial statements. + References No definition available. + Details
Name: | amtd_DisclosureOfInformationAboutApprovalOfConsolidatedFinancialStatementsAbstract
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Data Type: | xbrli:stringItemType
Balance Type: | na
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