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Credit Impairment Losses - Summary of Credit Impairment Losses (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of credit impairment losses [abstract]      
Financing guarantee contracts ¥ 2,933,903 ¥ 772,614 ¥ 120,961
Loans to customers 2,441,111 744,893 (63,240)
Accounts and other receivables and contract assets 991,903 1,499,344 794,116
Financial assets at amortized cost 272,909 18,193 1,010,867
Others 3,901 144 41
Credit impairment losses ¥ 6,643,727 ¥ 3,035,188 ¥ 1,862,745