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Inventories - Summary of Inventories (Detail)
¥ in Thousands, $ in Thousands
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Classes of current inventories [abstract]      
Raw materials ¥ 2,339,933 $ 336,589 ¥ 2,111,881
Work in progress 24,312 3,497 25,169
Finished goods 2,573,510 370,188 3,071,586
Total inventories at the lower of cost and net realizable value ¥ 4,937,755 $ 710,274 ¥ 5,208,636