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Retail Credit Facilitation Service Fees - Summary of Remaining Performance Obligations of Long Term Contracts (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Disclosure of transaction price allocated to remaining performance obligations [line items]    
Aggregate amount of the transaction price allocated to long-term contracts that are partially or fully unsatisfied at the end of each year ¥ 30,764,730 ¥ 33,819,203
Expected to be recognized within one year [member]    
Disclosure of transaction price allocated to remaining performance obligations [line items]    
Aggregate amount of the transaction price allocated to long-term contracts that are partially or fully unsatisfied at the end of each year 20,908,676 22,814,799
Expected to be recognized in one to two years [member]    
Disclosure of transaction price allocated to remaining performance obligations [line items]    
Aggregate amount of the transaction price allocated to long-term contracts that are partially or fully unsatisfied at the end of each year 8,131,102 9,054,717
Expected to be recognized in two to three years [member]    
Disclosure of transaction price allocated to remaining performance obligations [line items]    
Aggregate amount of the transaction price allocated to long-term contracts that are partially or fully unsatisfied at the end of each year ¥ 1,724,952 ¥ 1,949,687