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Trade and Other Payables - Summary of Trade and Other Current Payables (Parenthetical) (Detail)
¥ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Disclosure Of Detailed Information About Trade And Other Payables [line items]      
Bills payable ¥ 3,730,333 $ 519,994 ¥ 3,248,066
Bottom of range [member]      
Disclosure Of Detailed Information About Trade And Other Payables [line items]      
Trade payables settlement term 60 days    
Top of range [member]      
Disclosure Of Detailed Information About Trade And Other Payables [line items]      
Trade payables settlement term 90 days    
Joint ventures [member]      
Disclosure Of Detailed Information About Trade And Other Payables [line items]      
Bills payable ¥ 30,100 4,200 4,000
Other related parties [member]      
Disclosure Of Detailed Information About Trade And Other Payables [line items]      
Bills payable ¥ 597,100 $ 83,200 ¥ 435,300