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Interests in Joint Ventures - Schedule of Description in Material Joint Ventures (Detail) | 12 Months Ended
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Dec. 31, 2023
Interests in Joint Ventures [Line Items] |
Place of incorporation | E9
DHI Holdings (S) Pte Ltd. [Member] |
Interests in Joint Ventures [Line Items] |
Place of incorporation | U0
Percentage of ownership interest held by the Company | 51.00%
Principal activity | Hotel operations, hospitality and VIP services

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- References No definition available. + Details
Name: | amtd_InterestsInJointVenturesLineItems
Namespace Prefix: | amtd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Joint Ventures, Ownership Percentage, Parent. + References No definition available. + Details
Name: | amtd_JointVenturesOwnershipPercentageParent
Namespace Prefix: | amtd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Principal activity of entity. + References No definition available. + Details
Name: | amtd_PrincipalActivityOfEntity
Namespace Prefix: | amtd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Two-character EDGAR code representing the state or country of incorporation. + References No definition available. + Details
Name: | dei_EntityIncorporationStateCountryCode
Namespace Prefix: | dei_
Data Type: | dei:edgarStateCountryItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_OwnershipAxis=amtd_DHIHoldingsSPteLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |