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Leases - Summary of detailed Information About Carrying Amounts of Right-of-use Assets Recognized and Movements During Year (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($)
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | ¥ 342,141 | $ 48,164 | ¥ 344,814 | $ 48,541
Addition | 32,084 | 4,517 | 49,735 | 7,001
Depreciation expenses | (46,071) | (6,486) | (43,129) | (6,071)
Disposal of subsidiary | (22,782) | (3,207) |  |
Disposal | (5,564) | (783) | (3,256) | (458)
Termination | (1,382) | (195) | (6,187) | (871)
Translation difference | 19 | 3 | 164 | 22
Ending balance | 298,445 | $ 42,013 | 342,141 | $ 48,164
Leasehold land [member] |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | 289,065 |  | 304,645 |
Addition | 0 |  | 0 |
Depreciation expenses | (12,282) |  | (12,324) |
Disposal of subsidiary | (22,782) |  |  |
Disposal | (5,564) |  | (3,256) |
Termination | 0 |  | 0 |
Translation difference | 0 |  | 0 |
Ending balance | 248,437 |  | 289,065 |
Building and office space [member] |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | 52,739 |  | 40,118 |
Addition | 31,082 |  | 49,421 |
Depreciation expenses | (33,671) |  | (30,772) |
Disposal of subsidiary | 0 |  |  |
Disposal | 0 |  | 0 |
Termination | (1,382) |  | (6,187) |
Translation difference | 18 |  | 159 |
Ending balance | 48,786 |  | 52,739 |
Office Furniture, Fittings and Equipment [member] |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | 42 |  | 51 |
Addition | 0 |  | 0 |
Depreciation expenses | (7) |  | (14) |
Disposal of subsidiary | 0 |  |  |
Disposal | 0 |  | 0 |
Termination | 0 |  | 0 |
Translation difference | 1 |  | 5 |
Ending balance | 36 |  | 42 |
Motor vehicles [member] |  |  |  |
Disclosure of quantitative information about right-of-use assets [line items] |  |  |  |
Beginning balance | 295 |  | 0 |
Addition | 1,002 |  | 314 |
Depreciation expenses | (111) |  | (19) |
Disposal of subsidiary | 0 |  |  |
Disposal | 0 |  | 0 |
Termination | 0 |  | 0 |
Translation difference | 0 |  | 0 |
Ending balance | ¥ 1,186 |  | ¥ 295 |

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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term that do not meet the definition of investment property. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_53_j&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2023-en-r&anchor=para_47_a&doctype=Standard -URIDate 2023-03-23 + Details
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