v3.26.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2026
Aug. 04, 2026
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-33638  
Entity Registrant Name INTERNATIONAL TOWER HILL MINES LTD  
Entity Incorporation, State or Country Code A1  
Entity Address, Country CA  
Entity Tax Identification Number 98-0668474  
Entity Address, Address Line One 1570 - 200 Burrard Street  
Entity Address, City or Town Vancouver  
Entity Address, State or Province BC  
Entity Address, Postal Zip Code V6C 3L6  
City Area Code 604  
Local Phone Number 683-6332  
Title of 12(b) Security Common Shares, no par value  
Trading Symbol THM  
Security Exchange Name NYSEAMER  
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   261,637,473
Entity Central Index Key 0001134115  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Amendment Flag false