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NON-CONSOLIDATED VARIABLE INTEREST ENTITIES (VIEs) AND SERVICING ASSETS - Key Economic Assumptions Used in Determining Fair Value at Time of Sale of Loans (Details) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Weighted Average [Member] | Conventional Loan [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 6.80% | 7.30% | 7.40%
Discount rate | 9.50% | 9.50% | 9.70%
Weighted Average [Member] | Conventional Non Conforming Mortgage Loans [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 6.20% | 6.00% | 6.00%
Discount rate | 11.40% | 12.60% | 12.50%
Weighted Average [Member] | Government-guaranteed mortgage loans [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 6.70% | 6.60% | 6.70%
Discount rate | 11.50% | 11.50% | 11.70%
Maximum [Member] | Conventional Loan [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 20.60% | 16.90% | 18.40%
Discount rate | 9.50% | 10.00% | 10.00%
Maximum [Member] | Conventional Non Conforming Mortgage Loans [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 8.00% | 9.00% | 21.90%
Discount rate | 12.50% | 14.00% | 14.50%
Maximum [Member] | Government-guaranteed mortgage loans [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 17.10% | 18.00% | 18.30%
Discount rate | 11.50% | 11.50% | 12.00%
Minimum [Member] | Conventional Loan [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 2.10% | 2.40% | 3.40%
Discount rate | 9.50% | 9.50% | 9.50%
Minimum [Member] | Conventional Non Conforming Mortgage Loans [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 2.80% | 2.10% | 3.60%
Discount rate | 11.00% | 11.00% | 11.50%
Minimum [Member] | Government-guaranteed mortgage loans [Member] |  |  |
Assumption For Fair Value On Securitization Date Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities [Line Items] |  |  |
Constant prepayment rate | 3.00% | 3.80% | 4.80%
Discount rate | 11.50% | 11.50% | 11.50%

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- Definition Discount rate which is used to value residual cash flows generated by financial assets of the securitization, asset-backed financing arrangement, or similar transfer for initial fair value measurement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-3 + Details
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