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Loans To Customers - Summary of Loans To Customers (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Less: Provision for impairment losses        
Allowance account for credit losses of financial assets ¥ (630,848) ¥ (688,378) ¥ (401,626) ¥ (252,324)
Loans and advances to customers 214,972,110 119,825,814    
Loans and receivables, category [member]        
Disclosure of financial assets [line items]        
Interest receivable 2,963,210 2,321,117    
Less: Provision for impairment losses        
Allowance account for credit losses of financial assets (2,753,871) (989,205)    
Loans Originated By Consolidated Trust Plans [Member] | Loans and receivables, category [member]        
Disclosure of financial assets [line items]        
Loans originated by microloan lending companies and consumer finance company 202,175,185 112,253,099    
Loans originated by microloan lending and consumer finance company [Member] | Loans and receivables, category [member]        
Disclosure of financial assets [line items]        
Loans originated by microloan lending companies and consumer finance company 12,587,586 6,240,803    
Financial instruments not credit-impaired [member] | 12-month expected credit losses [member] | Loans and receivables, category [member]        
Less: Provision for impairment losses        
Allowance account for credit losses of financial assets (1,860,245) (480,854)    
Financial instruments not credit-impaired [member] | Lifetime expected credit losses [member] | Loans and receivables, category [member]        
Less: Provision for impairment losses        
Allowance account for credit losses of financial assets (312,280) (195,339)    
Financial instruments credit-impaired [member] | Lifetime expected credit losses [member] | Loans and receivables, category [member]        
Less: Provision for impairment losses        
Allowance account for credit losses of financial assets ¥ (581,346) ¥ (313,012)