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Treasury Shares - Summary of Treasury shares (Detail) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement [Line Items]      
Beginning balance ¥ 5,560,104    
Beginning balance, Shares   1,231,150,560  
Repurchase of ordinary shares 82,665 ¥ 5,560,104  
Issuance of ordinary shares for share-based payment, Shares     1,231,150,560
Ending balance 5,642,769 5,560,104  
Ending balance, Shares     1,231,150,560
Treasury shares [member]      
Statement [Line Items]      
Beginning balance ¥ 5,560,104 ¥ 2 ¥ 2
Beginning balance, Shares 59,287,314 35,644,803 35,644,803
Repurchase of ordinary shares ¥ 82,665 ¥ 5,560,104
Repurchase of ordinary shares, Shares 1,447,513 53,507,241  
Retirement of ordinary shares   ¥ (2)  
Retirement of ordinary shares, Shares   (35,644,803)  
Issuance of ordinary shares for share-based payment, Shares   8,000,000  
Exercise of share-based payment, Shares (3,223,040) (2,219,927) (0)
Ending balance ¥ 5,642,769 ¥ 5,560,104 ¥ 2
Ending balance, Shares 57,511,787 59,287,314 35,644,803