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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
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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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