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LOANS - Additional Data On Residential Mortgage Loans (Details) - Residential Mortgage Loans $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) point | Dec. 31, 2023 USD ($) point
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance | $ 19,364,991 | $ 16,611,204
Minimum |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance | $ 1 | $ 1
Interest rate | 2.00% | 2.00%
FICO score at loan origination | point | 549 | 549
Loan-to-value ratio at loan origination | 3.00% | 3.00%
Maximum |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance | $ 4,396 | $ 4,396
Interest rate | 13.25% | 13.25%
FICO score at loan origination | point | 850 | 850
Loan-to-value ratio at loan origination | 100.00% | 100.00%
Weighted Average |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance | $ 475 | $ 477
Interest rate | 5.87% | 5.63%
FICO score at loan origination | point | 757 | 758
Loan-to-value ratio at loan origination | 69.00% | 68.00%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 29 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479851/948-310-S99-1 + Details
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- Definition This is the result of the principal amount outstanding of total loans managed or securitized less securitized loans and loans that are in the process of being securitized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (a) -Paragraph 4 -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481326/860-20-50-4 + Details
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