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Residential Consumer Loans - Schedule of Classifications and Carrying Value of Residential Consumer Loans (Details) - USD ($) $ in Thousands		Sep. 30, 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]
Fair value of loans	[1]	$ 16,783,281	$ 11,077,823
Securitized Jumbo Loans | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans		13,079,486	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]
Fair value of 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]
Fair value of loans		16,783,281	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]
Fair value of loans		3,703,795	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]
Fair value of loans		13,079,486	10,064,276
Servicer advance investments, at fair value | Securitized Jumbo Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans		13,079,486	8,819,554
Servicer advance investments, at fair value | Securitized Jumbo Loans | Held-for-sale at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans		0	0
Servicer advance investments, at fair value | Securitized Jumbo Loans | Held-for-investment at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans		13,079,486	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]
Fair value of loans		1,248,236	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]
Fair value of loans		1,248,236	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]
Fair value of loans		0	1,244,722
Unsecuritized Jumbo Loans | Servicer advance investments, at fair value
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans		2,455,559	1,013,547
Unsecuritized Jumbo Loans | 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]
Fair value of loans		2,455,559	1,013,547
Unsecuritized Jumbo Loans | 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]
Fair value of loans		$ 0	$ 0
[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 September 30, 2025 and December 31, 2024, assets of consolidated VIEs totaled $18,284,133 and $14,654,942, respectively. At September 30, 2025 and December 31, 2024, liabilities of consolidated VIEs totaled $17,164,811 and $13,620,239, respectively. See Note 16 for further discussion.

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