v3.26.1
Cover - shares
6 Months Ended
May 31, 2026
Jul. 13, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Period End Date May 31, 2026  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Registrant Name IRON HORSE ACQUISITION II CORP.  
Entity Central Index Key 0002051985  
Entity File Number 001-43021  
Entity Tax Identification Number 98-1885362  
Entity Incorporation, State or Country Code E9  
Current Fiscal Year End Date --11-30  
Entity Current Reporting Status Yes  
Entity Shell Company true  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Address, Address Line One 851 Broken Sound Parkway NW  
Entity Address, Address Line Two Suite 230  
Entity Address, City or Town Boca Raton  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 33487  
City Area Code (310)  
Local Phone Number 290-5383  
Entity Common Stock, Shares Outstanding   29,320,000
Units, each consisting of one ordinary share and one right    
Document Information [Line Items]    
Title of 12(b) Security Units, each consisting of one ordinary share and one right  
Trading Symbol IRHOU  
Security Exchange Name NASDAQ  
Ordinary Share, par value $0.0001 per share    
Document Information [Line Items]    
Title of 12(b) Security Ordinary Share, par value $0.0001 per share  
Trading Symbol IRHO  
Security Exchange Name NASDAQ  
Right-each right entitles the holder thereof to receive one-tenth (1/10) of an ordinary share    
Document Information [Line Items]    
Title of 12(b) Security Right-each right entitles the holder thereof to receive one-tenth (1/10) of an ordinary share  
Trading Symbol IRHOR  
Security Exchange Name NASDAQ