Investment Securities Available For Sale, at Fair Value - Schedule of Investment Securities Available for Sale in Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Carrying Value	$ 0	$ 23,609
Less Than 12 months, Gross Unrealized Losses	0	(1,966)
Greater Than 12 months, Carrying Value	23,936	36
Greater Than 12 months, Gross Unrealized Losses	(1,827)	(5)
Total, Carrying Value	23,936	23,645
Total Gross Unrealized Losses	(1,827)	(1,971)
Non-Agency RMBS
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Carrying Value	0	23,609
Less Than 12 months, Gross Unrealized Losses	0	(1,966)
Greater Than 12 months, Carrying Value	23,936	36
Greater Than 12 months, Gross Unrealized Losses	(1,827)	(5)
Total, Carrying Value	23,936	23,645
Total Gross Unrealized Losses	$ (1,827)	$ (1,971)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.

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