Net Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Interest income	$ 140,901	$ 90,775	$ 270,636	$ 174,666
Interest expense	104,454	71,731	201,091	137,759
Total net interest income	36,447	19,044	69,545	36,907
Senior unsecured notes
Senior unsecured notes	4,928	1,676	9,545	3,302
Subordinated debentures
Subordinated debentures	955	1,071	1,905	2,144
Residential loans
Interest income	7,639	11,798	18,658	23,486
Consolidated SLST \| VIE, Primary Beneficiary
Interest income	11,890	9,154	22,630	17,281
Interest expense	8,429	6,752	15,393	12,553
Residential loans held in securitization trusts
Interest income	45,977	30,101	89,218	57,032
Total residential loans
Interest income	65,506	51,053	130,506	97,799
Investment securities available for sale
Investment securities available for sale	71,492	35,450	132,541	68,354
Multi-family loans
Interest income	2,176	2,669	4,756	5,311
Other
Other	1,727	1,603	2,833	3,202
Repurchase agreements
Interest expense	56,022	41,580	108,513	80,733
Residential loan securitizations
Interest expense	32,855	20,652	63,180	39,027
Non-Agency RMBS Re-Securitization
Interest expense	1,265	0	2,555	0
Total collateralized debt obligations
Interest expense	$ 42,549	$ 27,404	$ 81,128	$ 51,580

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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