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Real Estate Securities - Additional Information (Details) $ in Thousands	Jun. 30, 2023 USD ($) investment	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) investment
Debt and Equity Securities, FV-NI [Line Items]
Number of AFS securities (in investments) | investment	72		79
Number of securities in unrealized loss position | investment	28		38
Number of securities in a continuous unrealized loss position for twelve consecutive months or longer (in investments) | investment	16		1
Gross unrealized losses	$ 7,275		$ 13,127
CECL credit allowance	2,639	$ 2,568	2,540
Residential
Debt and Equity Securities, FV-NI [Line Items]
AFS securities, contractual maturities, less than five years	4,000
Marketable securities, due from five to ten years	4,000
CECL credit allowance	$ 25,615	$ 28,208	$ 28,739

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Number Of Available for Sale Securities

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Amount, before tax, of unrealized loss 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).

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Number of investments in debt securities 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. Includes beneficial interest in securitized financial asset.

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