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Net Interest Income - Summary of Net Interest Income (Detail) - CNY (¥)
¥ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of net interest income [line items]      
Interest income ¥ 1,267,815 ¥ 820,843 ¥ 364,385
Total net interest income 18,981,376 14,174,231 7,750,460
Loans originated by consolidated trust plans [member]      
Disclosure of net interest income [line items]      
Interest income 25,869,521 21,229,806 10,640,860
Interest expense (10,216,770) (8,400,992) (4,283,151)
Total net interest income 15,652,751 12,828,814 6,357,709
Loans originated by microloan lending companies and consumer finance company [member]      
Disclosure of net interest income [line items]      
Interest income 4,023,755 1,535,023 1,395,961
Interest expense (695,130) (189,606) (3,210)
Total net interest income ¥ 3,328,625 ¥ 1,345,417 ¥ 1,392,751