Residential Consumer Loans - Schedule of Classifications and Carrying Value of Residential Consumer Loans (Details) - USD ($) $ in Thousands		Dec. 31, 2025	Dec. 31, 2024
Held-for-sale at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans	[1]	$ 17,935,761	$ 11,077,823
Securitized Loans | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		14,843,747	8,819,554
Securitized Re-Performing Loans | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans			1,244,722
Servicer advance investments, at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		17,935,761	11,077,823
Servicer advance investments, at fair value | Held-for-sale at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		3,092,014	1,013,547
Servicer advance investments, at fair value | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		14,843,747	10,064,276
Servicer advance investments, at fair value | Securitized Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		14,843,747	8,819,554
Servicer advance investments, at fair value | Securitized Loans | Held-for-sale at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		0	0
Servicer advance investments, at fair value | Securitized Loans | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		14,843,747	8,819,554
Servicer advance investments, at fair value | Securitized Re-Performing Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		0	1,244,722
Servicer advance investments, at fair value | Securitized Re-Performing Loans | Held-for-sale at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		0	0
Servicer advance investments, at fair value | Securitized Re-Performing Loans | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		0	1,244,722
Unsecuritized HEI | Servicer advance investments, at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		3,092,014	1,013,547
Unsecuritized HEI | Servicer advance investments, at fair value | Held-for-sale at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		3,092,014	1,013,547
Unsecuritized HEI | Servicer advance investments, at fair value | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total Residential Consumer Loans		$ 0	$ 0

[1] Our consolidated balance sheets include assets of 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, 2025 and 2024, assets of consolidated VIEs totaled $18,927,094 and $14,654,942, respectively. At December 31, 2025 and 2024, liabilities of consolidated VIEs totaled $17,850,175 and $13,620,239, respectively. See Note 15 for further discussion.