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Bank Borrowings - Summary of currency analysis of bank borrowings (Detail) - HKD ($)
Dec. 31, 2022
Dec. 31, 2021
Disclosure of detailed information about borrowings [line items]    
Borrowings $ 160,479,101 $ 388,870,500
Hong Kong Dollars [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings 0 116,000,000
United States Dollars [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings 156,309,551 272,870,500
Euro [Member]    
Disclosure of detailed information about borrowings [line items]    
Borrowings $ 4,169,550 $ 0