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Income Tax Expense - Summary of Income Tax Expense (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥)
Current income tax |  |  |  |
Current year | ¥ 77,923 | $ 10,862 | ¥ 66,493 | ¥ 61,374
Under provision in respect of prior years | 151 | 21 | 27,837 | 27,406
Deferred tax |  |  |  |
Movement in temporary differences | 17,384 | 2,423 | (14,837) | (41,147)
(Over)/under provision in respect of prior years | 17,675 | 2,464 | 54,131 | (103)
Withholding tax |  |  |  |
Income tax expense recognized in profit or loss | 15,665 | 2,184 | 14,872 | 11,535
Consolidated income tax expense reported in the statement of profit or loss | ¥ 128,798 | $ 17,954 | ¥ 148,496 | ¥ 59,065

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