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Other Payables And Accruals - Summary of detailed information about other payables and accruals (Detail) - HKD ($)
Dec. 31, 2022
Dec. 31, 2021
Jan. 01, 2021
Disclosure Of Detailed Information About Accrued Expenses And Other Liabilities [Line Items]      
Accruals and other payables $ 114,718,709 $ 91,594,587  
Contract liabilities 17,077,186 630,962 $ 47,270,998
Current accrued expenses and other current liabilities $ 131,795,895 $ 92,225,549