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Inventories - Summary of Inventories (Detail)
¥ in Thousands, $ in Thousands
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Classes of current inventories [abstract]      
Raw materials and consumables ¥ 2,122,239 $ 295,832 ¥ 2,201,886
Work in progress 24,577 3,426 19,423
Finished goods 2,507,632 349,554 2,427,718
Total inventories at the lower of cost and net realizable value ¥ 4,654,448 $ 648,812 ¥ 4,649,027