Servicing Investments - Schedule of Components of Servicing Investments (Details) - USD ($) $ in Thousands		Mar. 31, 2026	Dec. 31, 2025
Net Investment Income [Line Items]
Mortgage servicing rights	[1]	$ 299,696	$ 302,230
Servicer advance investments, at fair value
Net Investment Income [Line Items]
Mortgage servicing rights		219,923	231,227
Excess MSRs, at fair value
Net Investment Income [Line Items]
Mortgage servicing rights		39,991	37,971
MSRs
Net Investment Income [Line Items]
Mortgage servicing rights		$ 39,782	$ 33,032

[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, 2026 and December 31, 2025, assets of consolidated VIEs totaled $22,076,415 and $18,927,094, respectively. At March 31, 2026 and December 31, 2025, liabilities of consolidated VIEs totaled $20,784,429 and $17,850,175, respectively. See Note 16 for further discussion.