Principles of Consolidation - Summary of Redwood's Interest in Third-Party Variable Interest Entity's (Details) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Real estate securities	[1]	$ 243,346	$ 240,475
Other assets | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		140,972	144,468
Other assets | Senior | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		89	145
Other assets | Subordinate | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		134,335	137,241
Other assets | Total Mortgage-Backed Securities | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		134,424	137,386
Other assets | Excess MSR | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		$ 6,548	$ 7,082

[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 March 31, 2023 and December 31, 2022, assets of consolidated VIEs totaled $9,836,956 and $9,257,291, respectively. At March 31, 2023 and December 31, 2022, liabilities of consolidated VIEs totaled $8,729,585 and $8,270,276, respectively. See Note 4 for further discussion.