Real Estate Securities - Schedule of Carrying Value of AFS Securities by Type (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]
Allowance for credit losses	$ (11,005)	$ (4,359)	$ (1,066)	$ (839)	$ (854)	$ (921)
AFS	287,347		287,557
Subordinate
Debt and Equity Securities, FV-NI [Line Items]
Amortized cost	271,546		260,381
Gross unrealized gains	30,092		31,334
Gross unrealized losses	(3,286)		(3,092)
Allowance for credit losses	(11,005)		(1,066)
AFS	$ 287,347		$ 287,557