v3.25.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2025
Aug. 08, 2025
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Registrant Name J.P. Morgan Real Estate Income Trust, Inc.  
Entity Central Index Key 0001893262  
Current Fiscal Year End Date --12-31  
Entity File Number 333-265588  
Entity Tax Identification Number 87-3439916  
Entity Address, Address Line One 277 Park Avenue  
Entity Address, Address Line Two 9th Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10172  
City Area Code 212  
Local Phone Number 270-6000  
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 Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Document Quarterly Report true  
Document Transition Report false  
Entity Incorporation, State or Country Code MD  
Class D Shares [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   1,034,829
Class I Shares [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   13,315,169
Class E Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   52,354,005
Class S Shares [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Common Stock Class Y    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   6,717,172
Class T Shares [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0
Class X Shares    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   0