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Revenue from contracts with customers - Schedule Of Revenue Recognized (Detail)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Disclosure of performance obligations [abstract]      
Amounts included in contract liabilities ¥ 640,864 $ 90,217 ¥ 544,495