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Cover
Mar. 03, 2025
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Mar. 03, 2025
Entity File Number 001-13759
Entity Registrant Name REDWOOD TRUST, INC.
Entity Central Index Key 0000930236
Entity Tax Identification Number 68-0329422
Entity Incorporation, State or Country Code MD
Entity Address, Address Line One One Belvedere Place
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Mill Valley
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94941
City Area Code 415
Local Phone Number 389-7373
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol RWT
Security Exchange Name NYSE
Series A Preferred Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security 10% Series A Fixed-Rate Reset Cumulative Redeemable Preferred Stock, par value $0.01 per share
Trading Symbol RWT PRA
Security Exchange Name NYSE
9.125% Senior Notes Due 2029 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 9.125% Senior Notes Due 2029
Trading Symbol RWTN
Security Exchange Name NYSE
9.0% Senior Notes Due 2029 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 9.0% Senior Notes Due 2029
Trading Symbol RWTO
Security Exchange Name NYSE
Percent 9125 Senior Notes Due 2030 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 9.125% Senior Notes Due 2030
Trading Symbol RWTP
Security Exchange Name NYSE