Fair value of securities pledged.

No definition available.

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- Definition

Percentage of concentration risk

+ References

No definition available.

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- Definition

Percentage of increase decrease in market value of financial assets at FVTPL.

+ References

No definition available.

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- Definition

Percentage of stock loan invested in listed equity.

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No definition available.

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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.

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No definition available.

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- Definition

The gain (loss) recognised in profit or loss on hedge ineffectiveness. [Refer: Gain (loss) on hedge ineffectiveness]

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- Definition

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

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- Definition

The profit (loss) before tax expense or income. [Refer: Profit (loss)]

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Financial risk management objectives and policies - Additional Information (Detail) - HKD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of financial assets that are either past due or impaired [line items]
Profit Loss Before Tax	$ 1,361,698,473	$ 1,331,176,555	$ 1,001,420,217
Derivative financial instrument charged to profit or loss	484,760,273	54,008,047
Ariana Capital Investment Limited [member] \| Derivative Financial Assets [member]
Disclosure of financial assets that are either past due or impaired [line items]
Credit risk exposure of derivative financial instruments	$ 1,305,256,317	$ 969,894,519
Investment F [member] \| Unlisted Equity Shares And Unlisted Debt Securities [Member]
Disclosure of financial assets that are either past due or impaired [line items]
Concentration risk percentage	0.00%	65.00%
Investment H [Member] \| Unlisted Equity Shares And Unlisted Debt Securities [Member]
Disclosure of financial assets that are either past due or impaired [line items]
Concentration risk percentage	97.00%	28.00%
Listed Equity Shares [Member] \| Bank of Qingdao Co Ltd [member]
Disclosure of financial assets that are either past due or impaired [line items]
Stock Loan Percent	81.00%	100.00%
Price Risk [member]
Disclosure of financial assets that are either past due or impaired [line items]
Percentage Of Increase Decrease In Market Value Of Financial Assets At FVTPL	5.00%	5.00%
Profit Loss Before Tax	$ 43,073,000	$ 52,770,000
Price Risk [member] \| Unlisted Equity Shares And Unlisted Debt Securities [Member]
Disclosure of financial assets that are either past due or impaired [line items]
Percentage Of Increase Decrease In Market Value Of Financial Assets At FVTPL	5.00%	5.00%
Profit Loss Before Tax	$ 27,922,000	$ 86,531,000
Credit risk [member]
Disclosure of financial assets that are either past due or impaired [line items]
Fair value of securities pledged	$ 3,781,638,616	$ 3,089,570,978