v3.26.1
Cover Page - shares
6 Months Ended
Jun. 30, 2026
Aug. 10, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 000-55580  
Entity Registrant Name HIGHLANDS REIT, INC.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 81-0862795  
Entity Address, Address Line One 1 South Dearborn Street  
Entity Address, Address Line Two 20th Floor  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60603  
City Area Code 312  
Local Phone Number 583-7990  
Title of 12(g) Security Common Stock  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   722,651,178
Entity Central Index Key 0001661458  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
No Trading Symbol Flag true