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Net Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Interest income	$ 108,361	$ 65,195	$ 283,027	$ 179,871
Interest expense	88,124	48,406	225,883	130,145
Total net interest income	20,237	16,789	57,144	49,726
Senior unsecured notes
Senior unsecured notes	3,001	1,620	6,303	4,852
Subordinated debentures
Subordinated debentures	1,081	1,078	3,225	3,063
Residential loans
Interest income	16,237	11,574	39,723	40,817
Consolidated SLST | VIE, Primary Beneficiary
Interest income	11,002	8,370	28,284	25,543
Interest expense	7,375	5,957	19,928	18,238
Residential loans held in securitization trusts
Interest income	31,833	24,183	88,866	74,041
Total residential loans
Interest income	59,072	44,127	156,873	140,401
Investment securities available for sale
Investment securities available for sale	44,431	17,203	112,785	27,862
Multi-family loans
Interest income	2,646	2,712	7,957	7,890
Other
Other	2,212	1,153	5,412	3,718
Repurchase agreements
Interest expense	52,326	24,169	133,059	54,084
Financing VIEs
Interest expense	23,435	15,582	62,462	49,908
Non-Agency RMBS Re-Securitization
Interest expense	906	0	906	0
Total collateralized debt obligations
Interest expense	$ 31,716	$ 21,539	$ 83,296	$ 68,146

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- Definition

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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