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Derivative Financial Assets - Summary Of Detailed Information About Financial Instruments (Detail) - HKD ($)	Dec. 31, 2022	Dec. 31, 2021
Disclosure of detailed information about financial instruments [line items]
Derivative financial assets	$ 1,443,134,162	$ 969,894,519
Upside Participation and Profit Distribution Agreements [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial assets	1,305,256,317	969,894,519
Future Settlement Contract [member]
Disclosure of detailed information about financial instruments [line items]
Derivative financial assets	$ 137,877,845	$ 0

X

- Definition

The amount of current derivative financial assets. [Refer: Derivative financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
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-URIDate 2022-03-24

+ Details

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X

- 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.

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- Details

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