v3.26.1
Document and Entity Information
May 29, 2026
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0000889123
Document Type 8-K
Document Period End Date May 29, 2026
Entity Registrant Name REDWOOD MORTGAGE INVESTORS VIII, L.P.
Entity Incorporation State Country Code CA
Entity File Number 000-27816
Entity Tax Identification Number 94-3158788
Entity Address, Address Line One 155 Bovet Road
Entity Address, Address Line Two Suite 302
Entity Address, City or Town San Mateo
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94402
City Area Code (650)
Local Phone Number 365-5341
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false