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Trade receivables - Summary of Trade Receivables (Detail)
¥ in Thousands, $ in Thousands
Jun. 30, 2023
CNY (¥)
Jun. 30, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Dec. 31, 2021
CNY (¥)
Disclosure of Trade Receivables [Abstract]        
Trade receivables ¥ 200,737   ¥ 152,256  
Allowance for expected credit loss (19,017)   (22,252) ¥ (2,470)
Total ¥ 181,720 $ 25,060 ¥ 130,004