v3.26.3
COVER - shares
 9 Months Ended
Sep. 30, 2026
Nov. 09, 2026
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2026  
Document Transition Report false  
Entity File Number 000-56783  
Entity Registrant Name Rithm Perpetual Life Residential Trust  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 39-7059385  
Entity Address, Address Line One 799 Broadway  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10003  
City Area Code (212)  
Local Phone Number 850-7770  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Shell Company false  
Entity Central Index Key 0002081628  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2026  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Common, Beneficial Interest    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   8,370,369
Class J Par Value    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   7,966,175
Class E Par Value    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   404,194