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v3.25.1

Income Tax Expense - Summary of Deferred Tax (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2024 USD ($)
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | ¥ (35,059) | $ (4,887) | ¥ (39,294) | ¥ 41,250 |
Deferred tax liabilities |  | (65,056) |  | (65,089) |  | $ (9,068)
Deferred tax assets |  | 410,728 |  | 426,377 |  | 57,254
Net deferred tax assets |  | 345,672 |  | 361,288 |  | 48,186
Accelerated depreciation [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | 43,698 | 6,091 | 44,492 | 16,472 |
Deferred tax liabilities |  | (34,108) |  | (77,806) |  | (4,755)
Interest receivable [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | 0 | 0 | 3,033 | 363 |
Deferred tax liabilities |  | 0 |  | 0 |  | 0
PRC withholding tax on dividend income [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) | [1] | (15,541) | (2,166) | (14,457) | (11,458) |
Deferred tax liabilities | [1] | (64,717) |  | (64,717) |  | (9,021)
Effect of change in residual value and impairment of property, plant and equipment [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | (2,142) | (299) | (66,774) | 4,273 |
Deferred tax assets |  | 724 |  | 2,866 |  | 101
Write-down of inventories [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | 1,512 | 211 | 7,617 | 9,253 |
Deferred tax assets |  | 38,632 |  | 37,120 |  | 5,385
Impairment losses on trade receivables [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | 25,114 | 3,501 | 355 | 282 |
Deferred tax assets |  | 32,540 |  | 7,426 |  | 4,536
Accruals [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | (65,540) | (9,120) | (2,505) | (48,841) |
Deferred tax assets |  | 166,623 |  | 232,048 |  | 23,227
Deferred income [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | 46,211 | 6,442 | 23,416 | (41,348) |
Deferred tax assets |  | 126,107 |  | 79,896 |  | 17,579
Others [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | 44,230 | 6,149 | (7,325) | (4,421) |
Deferred tax assets |  | 79,871 |  | 31,854 |  | 11,134
Losses available for offsetting against future taxable income [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax benefits/(expenses) |  | (112,601) | $ (15,696) | (27,146) | ¥ 116,675 |
Net deferred tax assets |  | ¥ 0 |  | ¥ 112,601 |  | $ 0
[1] | The movement of PRC withholding tax on dividend income is as follows:

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