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Acquisitions of Subsidiaries - Summary of Gain Arising on Acquisition (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
The Art Newspaper SA [Member]    
Business Acquisition [Line Items]    
Recognized amounts of net assets acquired $ 21,300  
Less: consideration paid/payable (16,831)  
Total 4,469  
Lofficiel [Member]    
Business Acquisition [Line Items]    
Recognized amounts of net assets acquired   $ 67,648
Less: consideration paid/payable   $ (62,800)
Total $ 4,848