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INTEREST INCOME AND INTEREST EXPENSE (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Interest income |  |  |  |
Agency securities | $ 789,403 | $ 753,007 | $ 2,331,698 | $ 2,043,021
Residential credit securities | 49,863 | 57,229 | 156,754 | 167,451
Residential mortgage loans | 346,031 | 181,965 | 899,867 | 491,398
Commercial investment portfolio | 2,240 | 5,812 | 8,235 | 24,009
Reverse repurchase agreements | 41,804 | 3,472 | 104,600 | 15,350
Total interest income | 1,229,341 | 1,001,485 | 3,501,154 | 2,741,229
Interest expense |  |  |  |
Repurchase agreements | 942,780 | 917,997 | 2,722,304 | 2,457,996
Debt issued by securitization vehicles | 234,299 | 116,962 | 596,128 | 307,715
Participations issued | 17,834 | 11,860 | 57,841 | 33,352
U.S. Treasury securities sold, not yet purchased | 21,027 | 0 | 64,373 | 0
Total interest expense | 1,215,940 | 1,046,819 | 3,440,646 | 2,799,063
Interest income | $ 13,401 | $ (45,334) | $ 60,508 | $ (57,834)

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