Real Estate Securities - Schedule of Fair Values of Real Estate Securities by Type (Details) - USD ($) $ in Thousands		Dec. 31, 2025	Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Trading		$ 135,459	$ 193,749
AFS		287,557	211,474
Total Real Estate Securities	[1]	$ 423,016	$ 405,223

[1] Our consolidated balance sheets include assets of 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 December 31, 2025 and 2024, assets of consolidated VIEs totaled $18,927,094 and $14,654,942, respectively. At December 31, 2025 and 2024, liabilities of consolidated VIEs totaled $17,850,175 and $13,620,239, respectively. See Note 15 for further discussion.