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SECURED FINANCING - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Repurchase Agreements: |  |  |
Netted amounts | $ 58,975,232 | $ 62,201,543 | [1]
Repurchase agreements, weighted average remaining maturities | 43 days | 44 days |
Repurchase agreements weighted average rate | 5.55% | 5.70% |
Repurchase agreement amount | $ 2,700,000 |  |
Remaining capacity of repurchase agreement | 1,900,000 |  |
Fair value of collateral received for reverse repurchase agreements | 2,400,000 | $ 2,300,000 |
Fair value of securities sold | 2,100,000 | 2,100,000 |
Other secured financing | $ 600,000 | 500,000 | [1]
Debt weighted average interest rate | 8.07% |  |
Secured financings and interest rate swaps - collateral held, estimated fair value | $ 64,300,000 | 68,200,000 |
Secured financings and interest rate swaps - collateral held, accrued interest | 275,500 | $ 279,500 |
Line of Credit | Mortgage Servicing Rights Committed Credit Facility |  |  |
Repurchase Agreements: |  |  |
Credit facility, maximum borrowing capacity | $ 1,300,000 |  |
Minimum |  |  |
Repurchase Agreements: |  |  |
Debt instrument, maturity | 10 months |  |
Maximum |  |  |
Repurchase Agreements: |  |  |
Debt instrument, maturity | 2 years |  |
[1] | (1)Derived from the audited consolidated financial statements at December 31, 2023.

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