v3.26.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2026
Aug. 03, 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 001-41951  
Entity Registrant Name AMERICAN HEALTHCARE REIT, INC.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 47-2887436  
Entity Address, Address Line One 18191 Von Karman Avenue  
Entity Address, Address Line Two Suite 300  
Entity Address, City or Town Irvine  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 92612  
City Area Code 949  
Local Phone Number 270-9200  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   217,998,775
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001632970  
Current Fiscal Year End Date --12-31  
Title of 12(b) Security Common Stock, $0.01 par value per share  
Trading Symbol AHR  
Security Exchange Name NYSE