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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, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥)
--- | --- | --- | ---
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 15,408,896 | $ 2,147,941 | ¥ 14,275,698
Expected credit loss | ¥ 227,133 | $ 31,661 | ¥ 54,894
Trade receivables [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Expected credit loss rate | 12.60% | 12.60% | 4.80%
Expected credit loss | ¥ 229,694 |  | ¥ 54,894
Trade receivables [member] | Cost [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 1,828,773 |  | 1,549,332
Current [member] | Trade receivables [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Expected credit loss rate | 0.40% | 0.40% |
Expected credit loss | ¥ 2,561 |  |
Current [member] | Trade receivables [member] | Cost [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 653,519 |  | ¥ 921,884
Days past due 0- 90 days [member] | Trade receivables [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Expected credit loss rate | 7.80% | 7.80% | 0.10%
Expected credit loss | ¥ 49,750 |  | ¥ 294
Days past due 0- 90 days [member] | Trade receivables [member] | Cost [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 641,862 |  | ¥ 350,376
Days Past due 91-180 days [member] | Trade receivables [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Expected credit loss rate | 15.70% | 15.70% | 0.80%
Expected credit loss | ¥ 35,500 |  | ¥ 753
Days Past due 91-180 days [member] | Trade receivables [member] | Cost [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 225,739 |  | ¥ 97,382
Days past due 181-365 days [member] | Trade receivables [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Expected credit loss rate | 21.20% | 21.20% | 2.20%
Expected credit loss | ¥ 32,818 |  | ¥ 2,067
Days past due 181-365 days [member] | Trade receivables [member] | Cost [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 154,973 |  | ¥ 93,015
Days past due greater than 365 days [member] | Trade receivables [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Expected credit loss rate | 71.40% | 71.40% | 59.70%
Expected credit loss | ¥ 109,065 |  | ¥ 51,780
Days past due greater than 365 days [member] | Trade receivables [member] | Cost [member] |  |  |
Disclosure of provision matrix [line items] |  |  |
Financial assets | ¥ 152,680 |  | ¥ 86,675

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