Financing Receivable, Net - Summary of Activities in Allowance for Credit Losses (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balances	¥ (529,162)	¥ (373,545)	¥ (384,036)
Provision for credit losses	(401,417)	(779,235)	(708,684)
Charge-offs	913,940	1,078,705	815,421
Recoveries from prior charge-offs	(310,225)	(225,426)	(96,246)
Ending balances	¥ (326,864)	(529,162)	(373,545)
ASC 326
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balances		¥ (229,661)
Ending balances			¥ (229,661)

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant