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Income Tax Expense - Summary of Income Tax Expense (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Current income tax |  |  |  |
Current year | ¥ 180,254 | $ 27,854 | ¥ 193,878 | ¥ 209,448
Over provision in respect of prior years | (124) | (19) | (6,985) | (729)
Deferred tax |  |  |  |
Movement in temporary differences | 12,543 | 1,938 | (14,274) | (2,052)
Over provision in respect of prior years | (135) | (20) |  |
Consolidated income tax expense reported in the statement of profit or loss | ¥ 192,538 | $ 29,753 | ¥ 172,619 | ¥ 206,667

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