v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Aug. 06, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 000-56611  
Entity Registrant Name North Haven Net REIT  
Entity Incorporation, State or Country Code MD  
Entity Address, Address Line One 1585 Broadway, 33rd Floor  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Tax Identification Number 92-2570735  
Entity Address, Postal Zip Code 10036  
City Area Code 212  
Local Phone Number 761-2340  
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 false  
Entity Shell Company false  
Entity Central Index Key 0001999784  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Class F-S common shares, $0.01 par value per share    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   18,335,160
Class F-I common shares, $0.01 par value per share    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   12,585,783
Class S common shares, $0.01 par value per share    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   23,511,893
Class I common shares, $0.01 par value per share    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   13,538,402
Class E common shares, $0.01 par value per share    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   9,629,971