Net Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Interest income	$ 160,633	$ 108,361	$ 431,268	$ 283,027
Interest expense	124,047	88,124	325,137	225,883
Total net interest income	36,586	20,237	106,131	57,144
Senior unsecured notes
Senior unsecured notes	7,615	3,001	17,160	6,303
Subordinated debentures
Subordinated debentures	966	1,081	2,871	3,225
Investment securities available for sale
Investment securities available for sale	87,565	44,431	220,106	112,785
Residential loans
Interest income	9,036	16,237	27,694	39,723
Consolidated SLST \| VIE, Primary Beneficiary
Interest income	14,306	11,002	36,936	28,284
Interest expense	11,199	7,375	26,592	19,928
Residential loans held in securitization trusts
Interest income	43,392	31,833	132,609	88,866
Total Residential loans
Interest income	66,734	59,072	197,239	156,873
Residential loans held for sale
Interest income	2,149	0	2,149	0
Multi-family loans
Interest income	2,090	2,646	6,846	7,957
Other
Other	2,095	2,212	4,928	5,412
Repurchase agreements and warehouse facilities
Interest expense	71,550	52,326	180,063	133,059
Residential loan securitizations
Interest expense	31,478	23,435	94,657	62,462
Non-Agency RMBS Re-Securitization
Interest expense	1,239	906	3,794	906
Total collateralized debt obligations
Interest expense	$ 43,916	$ 31,716	$ 125,043	$ 83,296

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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