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Acquisitions of Subsidiaries - Summary of reserve or gain arising on acquisition (Parenthetical) (Detail)	Feb. 28, 2022
AMTD Digital [Member]
Disclosure of detailed information about business combination [line items]
Percentage of non controlling interest recognized at acquisition date	2.91%

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- Definition

Percentage of non controlling interest recognized at acquisition date.

+ References

No definition available.

+ Details

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Namespace Prefix:	amtd_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: