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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

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