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v3.22.1

Income Tax Expense - Summary of Deferred Tax (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2021 USD ($)
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax liabilities |  | ¥ (65,544) |  | ¥ (112,456) |  | $ (10,367)
Deferred tax assets |  | 398,174 |  | 400,198 |  | 62,980
Reconciliation of deferred tax (expense) income [member] |  | (16,483) | $ (2,607) | (12,408) | ¥ 14,274 |
Reconciliation of deferred tax (expense) income [member] |  | 332,630 |  | 287,742 |  | 52,613
Accelerated depreciation [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax liabilities |  | (138,770) |  | (100,802) |  | (21,950)
Reconciliation of deferred tax (expense) income [member] |  | (37,968) | (6,006) | (55,882) | (17,366) |
Interest receivable [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax liabilities |  | (3,396) |  | (1,937) |  | (537)
Reconciliation of deferred tax (expense) income [member] |  | (1,459) | (231) | (293) | 608 |
PRC withholding tax on dividend income [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax liabilities | [1] | (65,544) |  | (112,456) |  | (10,367)
Reconciliation of deferred tax (expense) income [member] | [1] | (14,529) | (2,298) | (36,255) | (30,721) |
Impairment of property, plant and equipment [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 5,138 |  | 6,210 |  | 812
Reconciliation of deferred tax (expense) income [member] |  | (1,072) | (170) | (438) | (9,295) |
Write-down of inventories [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 20,250 |  | 22,628 |  | 3,203
Reconciliation of deferred tax (expense) income [member] |  | (2,378) | (376) | 4,225 | 2,343 |
Allowance for doubtful account receivables [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 6,789 |  | 8,056 |  | 1,074
Reconciliation of deferred tax (expense) income [member] |  | (1,267) | (200) | (2,021) | 4,900 |
Accruals [member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 283,427 |  | 298,766 |  | 44,830
Reconciliation of deferred tax (expense) income [member] |  | (15,339) | (2,426) | 48,149 | 46,108 |
Deferred income [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 97,828 |  | 108,942 |  | 15,474
Reconciliation of deferred tax (expense) income [member] |  | (11,114) | (1,758) | 1,211 | 12,232 |
Others [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 43,606 |  | 24,441 |  | 6,897
Reconciliation of deferred tax (expense) income [member] |  | 19,235 | 3,042 | (4,998) | 5,465 |
Losses available for offsetting against future taxable income |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Reconciliation of deferred tax (expense) income [member] |  | 23,072 |  | 0 | 0 | 3,650
Effect of change in residual value of property, plant and equipment [Member] |  |  |  |  |  |
Disclosure of deferred tax assets and liabilities [Line Items] |  |  |  |  |  |
Deferred tax assets |  | 60,230 |  | 33,894 |  | $ 9,527
Reconciliation of deferred tax (expense) income [member] |  | ¥ 26,336 | $ 4,166 | ¥ 33,894 | ¥ 0 |
[1] | The movement of PRC withholding tax on dividend income is as follows:

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