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Event occurring after the reporting period - Additional Information (Detail)
¥ in Thousands, $ in Thousands, kr in Millions
Sep. 05, 2023
USD ($)
Aug. 22, 2023
USD ($)
Jul. 13, 2023
USD ($)
Aug. 22, 2023
SEK (kr)
Jun. 30, 2023
CNY (¥)
Jun. 30, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Disclosure of non-adjusting events after reporting period [line items]              
Total cash consideration         ¥ 149,230 $ 20,580 ¥ 146,730
Events after Reporting Period [Member] | LMR Partners Limited              
Disclosure of non-adjusting events after reporting period [line items]              
Purchase of convertible notes $ 40,000   $ 30,000        
Events after Reporting Period [Member] | Charge Amps              
Disclosure of non-adjusting events after reporting period [line items]              
Total cash consideration   $ 66,400   kr 724      
Proportion of ownership interest in subsidiary   100.00%