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Convertible Bond and Derivative Financial Liability - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 19, 2019
Jan. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]        
Convertible debt rate of interest 2.00%      
Debt instrument face value $ 15,000,000      
Convertible bond conversion basis     99.44 American Depositary Shares (“ADSs”) per US$1,000 principal  
Common Class A [Member] | Convertible Debt [Member]        
Debt Instrument [Line Items]        
Debt instrument conversion price per share   $ 8.08    
Debt instrument minimum amount eligible for conversion $ 10,000,000      
Stock issued during the period shares conversion of convertible securities   1,856,436   1,856,436
Common Class A [Member] | Convertible Debt [Member] | ADR [Member]        
Debt Instrument [Line Items]        
Debt instrument conversion price per share $ 99.44