v3.25.2
Cover Page - shares
 6 Months Ended
Jun. 30, 2025
Jul. 31, 2025
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-42655  
Entity Registrant Name Galaxy Digital Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 87-0836313  
Entity Address, Address Line One 300 Vesey Street  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10282  
City Area Code 212  
Local Phone Number 390-9216  
Title of 12(b) Security Class A Common Stock, $0.001 Par Value  
Trading Symbol GLXY  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Amendment Flag false  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001859392  
Current Fiscal Year End Date --12-31  
Class A Common Stock    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   172,401,243
Class B Common Stock    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   203,885,332