Principles of Consolidation - Summary of Redwood's Interest in Third-Party Variable Interest Entity's (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Real estate securities	[1]	$ 358,882	$ 377,411
Other assets | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		235,447	242,055
Other assets | Senior | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		9,960	3,572
Other assets | Subordinate | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		215,908	228,083
Other assets | Total Mortgage-Backed Securities | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		225,868	231,655
Other assets | Excess MSR | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		$ 9,579	$ 10,400

[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, 2022 and December 31, 2021, assets of consolidated VIEs totaled $10,250,802 and $10,661,081, respectively. At March 31, 2022 and December 31, 2021, liabilities of consolidated VIEs totaled $9,202,156 and $9,619,347, respectively. See Note 4 for further discussion.