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Goodwill - Additional Information (Detail) - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of information for cash-generating units [line items]      
Impairment loss recognised in profit or loss, goodwill ¥ 6.7 ¥ 129.0 ¥ 0.0
Growth Rate [Member]      
Disclosure of information for cash-generating units [line items]      
Impairment loss recognised in profit or loss, goodwill   ¥ 126.0