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Real Estate Securities - Fair Values of Real Estate Securities (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Trading		$ 48,041	$ 108,329
Available-for-sale		81,404	132,146
Total Real Estate Securities	[1]	$ 129,445	$ 240,475
[1] Our consolidated balance sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations of these VIEs and liabilities of consolidated VIEs for which creditors do not have recourse to Redwood Trust, Inc. or its affiliates. At September 30, 2023 and December 31, 2022, assets of consolidated VIEs totaled $9,639,117 and $9,257,291, respectively. At September 30, 2023 and December 31, 2022, liabilities of consolidated VIEs totaled $8,635,696 and $8,270,276, respectively. See Note 4 for further discussion.

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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).

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