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Taxation - Schedule of Components of Income Tax Expenses (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]      
Current income tax expenses ¥ 59,527 ¥ 0 ¥ 0