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Financial Risk Management Objectives and Policies - Summary of Information about Credit Risk on Trade Receivables using Provision Matrix (Detail)
¥ in Thousands, $ in Thousands
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Disclosure of provision matrix [line items]      
Financial assets ¥ 14,275,698 $ 2,009,643 ¥ 11,772,588
Expected credit loss ¥ 54,894 $ 7,728 ¥ 33,247
Trade receivables [member]      
Disclosure of provision matrix [line items]      
Expected credit loss rate 4.80% 4.80% 2.10%
Expected credit loss ¥ 54,894   ¥ 33,247
Trade receivables [member] | Cost [member]      
Disclosure of provision matrix [line items]      
Financial assets 1,148,682   1,549,462
Current [member] | Trade receivables [member] | Cost [member]      
Disclosure of provision matrix [line items]      
Financial assets ¥ 521,234   ¥ 1,138,365
Days past due 0- 90 days [member] | Trade receivables [member]      
Disclosure of provision matrix [line items]      
Expected credit loss rate 0.10% 0.10% 0.20%
Expected credit loss ¥ 294   ¥ 500
Days past due 0- 90 days [member] | Trade receivables [member] | Cost [member]      
Disclosure of provision matrix [line items]      
Financial assets ¥ 350,376   ¥ 216,355
Days Past due 91-180 days [member] | Trade receivables [member]      
Disclosure of provision matrix [line items]      
Expected credit loss rate 0.80% 0.80% 0.20%
Expected credit loss ¥ 753   ¥ 124
Days Past due 91-180 days [member] | Trade receivables [member] | Cost [member]      
Disclosure of provision matrix [line items]      
Financial assets ¥ 97,382   ¥ 80,132
Days past due 181-365 days [member] | Trade receivables [member]      
Disclosure of provision matrix [line items]      
Expected credit loss rate 2.20% 2.20% 0.60%
Expected credit loss ¥ 2,067   ¥ 372
Days past due 181-365 days [member] | Trade receivables [member] | Cost [member]      
Disclosure of provision matrix [line items]      
Financial assets ¥ 93,015   ¥ 63,477
Days past due greater than 365 days [member] | Trade receivables [member]      
Disclosure of provision matrix [line items]      
Expected credit loss rate 59.70% 59.70% 63.10%
Expected credit loss ¥ 51,780   ¥ 32,251
Days past due greater than 365 days [member] | Trade receivables [member] | Cost [member]      
Disclosure of provision matrix [line items]      
Financial assets ¥ 86,675   ¥ 51,133