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Deferred Tax Liabilities - Summary of Deferred Tax Liabilites (Detail)
 12 Months Ended
Dec. 31, 2022
HKD ($)
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]  
Beginning balance $ 0
Ending balance 25,785,453
Intangible assets other than goodwill [member]  
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]  
Beginning balance 0
Acquisitions of subsidiaries (note 34) 27,681,459
Deferred tax credit to profit or loss during the year (Note 9) (1,896,006)
Ending balance $ 25,785,453