Principles of Consolidation - Summary of Redwood's Interest in Third-Party Variable Interest Entity's (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Variable Interest Entity [Line Items]
Real estate securities	[1]	$ 240,475	$ 377,411
Real estate securities | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		144,468	242,055
Real estate securities | Senior | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		145	3,572
Real estate securities | Subordinate | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		137,241	228,083
Real estate securities | Total Mortgage-Backed Securities | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		137,386	231,655
Real estate securities | Excess MSR | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Real estate securities		$ 7,082	$ 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 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.