Investment Securities Available For Sale, at Fair Value - Schedule of Realized Gain or Loss Activity (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Debt Securities, Available-for-sale [Line Items]
Sales Proceeds	$ 24,772	$ 25,367
Realized Gains	0	0
Realized Losses	(1,035)	(1,076)
Net Realized Gains (Losses)	(1,035)	(1,076)
CMBS
Debt Securities, Available-for-sale [Line Items]
Sales Proceeds	24,772	24,772
Realized Gains	0	0
Realized Losses	(1,035)	(1,035)
Net Realized Gains (Losses)	$ (1,035)	(1,035)
ABS
Debt Securities, Available-for-sale [Line Items]
Sales Proceeds		595
Realized Gains		0
Realized Losses		(41)
Net Realized Gains (Losses)		$ (41)