Real Estate Securities - Fair Values of Real Estate Securities by Collateral Type and Entity (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Trading		$ 108,329	$ 170,619
Available-for-sale		132,146	206,792
Total Real Estate Securities	[1]	$ 240,475	$ 377,411

[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 December 31, 2022 and 2021, assets of consolidated VIEs totaled $9,257,291 and $10,661,081, respectively. At December 31, 2022 and 2021, liabilities of consolidated VIEs totaled $8,270,276 and $9,619,347, respectively. See Note 4 for further discussion.