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Technology platform-based income - Summary of Remaining Performance Obligations of Long Term Contracts (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2022
Dec. 31, 2021
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 the year ¥ 18,911,239 ¥ 30,764,730
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 the year 11,330,057 20,908,676
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 the year 5,643,999 8,131,102
Expected to be recognized over 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 the year ¥ 1,937,183 ¥ 1,724,952