v3.25.4
Financial Instruments And Risks- Summary of Liquidity Risk (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities ¥ 111,479,681 ¥ 133,961,523 ¥ 249,842,652
Payable to platform investors [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 721,558 985,761 1,569,367
Borrowings [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 51,937,587 39,713,410 37,506,884
Customer deposit [Member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 3,963,791    
Bond payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities     2,209,274
Accounts and other payables and contract liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 2,833,692 2,791,832 6,118,819
Payable to investors of consolidated structured entities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 43,789,210 81,649,762 182,729,954
Lease liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 311,234 427,075 797,682
Convertible promissory notes payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 7,140,026 7,086,065 7,018,086
Optionally convertible promissory notes [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities     8,546,138
Financial assets sold under repurchase agreements [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 782,583 1,307,618 3,346,448
Financing guarantee contracts [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 68,017,023 54,903,487 68,502,938
Repayable on demand [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 2,753,164 2,540,295 3,358,863
Repayable on demand [member] | Payable to platform investors [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 721,558 985,761 1,569,367
Repayable on demand [member] | Borrowings [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 71,938 142,342  
Repayable on demand [member] | Customer deposit [Member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 469,093    
Repayable on demand [member] | Accounts and other payables and contract liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 1,489,870 1,358,823 1,742,145
Repayable on demand [member] | Payable to investors of consolidated structured entities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities   53,369 47,351
Repayable on demand [member] | Lease liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 705    
Repayable on demand [member] | Financing guarantee contracts [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 68,017,023 54,903,487 68,502,938
Not later than three months [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 90,582,460 105,319,335 190,775,225
Not later than three months [member] | Borrowings [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 49,819,385 36,685,617 37,506,884
Not later than three months [member] | Customer deposit [Member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 3,494,698    
Not later than three months [member] | Bond payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities     2,209,274
Not later than three months [member] | Accounts and other payables and contract liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 1,343,822 1,433,009 4,376,674
Not later than three months [member] | Payable to investors of consolidated structured entities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 34,900,519 65,571,670 134,267,908
Not later than three months [member] | Lease liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 189,663 270,393 471,722
Not later than three months [member] | Convertible promissory notes payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 51,790 51,028 50,177
Not later than three months [member] | Optionally convertible promissory notes [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities     8,546,138
Not later than three months [member] | Financial assets sold under repurchase agreements [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 782,583 1,307,618 3,346,448
Later than one year and not later than two years [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 17,572,240 16,872,745 44,779,374
Later than one year and not later than two years [member] | Borrowings [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 2,046,264 1,926,278  
Later than one year and not later than two years [member] | Payable to investors of consolidated structured entities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 8,343,092 14,776,713 44,477,983
Later than one year and not later than two years [member] | Lease liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 94,648 118,726 251,214
Later than one year and not later than two years [member] | Convertible promissory notes payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 7,088,236 51,028 50,177
Later than two years and not later than three years [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 571,579 9,226,018 3,989,225
Later than two years and not later than three years [member] | Borrowings [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 0 959,173  
Later than two years and not later than three years [member] | Payable to investors of consolidated structured entities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 545,599 1,247,265 3,871,121
Later than two years and not later than three years [member] | Lease liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 25,980 35,571 67,927
Later than two years and not later than three years [member] | Convertible promissory notes payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 0 6,984,009 50,177
Later than three years and not later than four years [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 238 3,130 6,939,965
Later than three years and not later than four years [member] | Payable to investors of consolidated structured entities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities 0 745 65,591
Later than three years and not later than four years [member] | Lease liabilities [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities ¥ 238 ¥ 2,385 6,819
Later than three years and not later than four years [member] | Convertible promissory notes payable [member]      
Disclosure of maturity analysis for non-derivative financial liabilities [line items]      
Financial liabilities     ¥ 6,867,555