v3.25.3

Debt Securities and Other Investments - Schedule of Investments In Debt Securities and Beneficial Interests (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024	Jun. 30, 2025	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Debt securities held-to-maturity at amortized cost, net of allowance for credit losses of $0
Gross unrealized losses	$ (2,218)	$ (2,934)
Other investments, at fair value
Basis	21,428	29,916
Gross unrealized gains	0	0
Gross unrealized losses	(2,953)	0
Fair value	18,475	29,916
Total investments, basis	477,984	479,429
Total investments, gross unrealized gains	10,996	2,356
Total investments, gross unrealized losses	(40,504)	(32,095)
Total investments, fair value	448,475	449,690
Commercial mortgage-backed securities, at fair value
Mortgage-Backed Securities, At Fair Value
Basis	273,388	245,540
Gross unrealized gains	758	1,074
Gross unrealized losses	(101)	0
Fair value	274,044	246,614
RMBS Available-for-Sale, at Fair Value
Mortgage-Backed Securities, At Fair Value
Basis		68,226
Gross unrealized gains	492	273
Gross unrealized losses	(448)	(6,330)
Fair value	49,307	62,169
Debt securities
Debt securities held-to-maturity at amortized cost, net of allowance for credit losses of $0
HTM, allowance for expected credit losses	0	0
Basis	42,520	46,043
Gross unrealized gains	1	8
Gross unrealized losses	(1,379)	(2,104)
Fair value	41,142	43,947
Investment in beneficial interests
Mortgage-Backed Securities, At Fair Value
Debt securities, available-for-sale, allowance for credit loss	0	9,082	$ 9,082	$ 9,082	$ 9,082	$ 6,880
Basis	91,385	89,704
Gross unrealized gains	9,745	1,001
Gross unrealized losses	(35,623)	(23,661)
Fair value	65,507	67,044
Debt securities held-to-maturity at amortized cost, net of allowance for credit losses of $0
HTM, allowance for expected credit losses	0
Residential mortgage-backed securities
Mortgage-Backed Securities, At Fair Value
Basis	183,168	203,973
Gross unrealized gains	10,238	1,282
Gross unrealized losses	(37,450)	(32,095)
Fair value	$ 155,956	$ 173,160

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Rithm Property Trust Inc. 10-Q