v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Jul. 24, 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 001-42509  
Entity Registrant Name STRATEGY INC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 51-0323571  
Entity Address, Address Line One 1850 Towers Crescent Plaza  
Entity Address, City or Town Tysons Corner  
Entity Address, State or Province VA  
Entity Address, Postal Zip Code 22182  
City Area Code 703  
Local Phone Number 848-8600  
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 Central Index Key 0001050446  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Amendment Flag false  
10.00% Series A Perpetual Strife Preferred Stock    
Document Information [Line Items]    
Title of 12(b) Security 10.00% Series A Perpetual Strife Preferred Stock, $0.001 par value per share  
Trading Symbol STRF  
Security Exchange Name NASDAQ  
Variable Rate Series A Perpetual Stretch Preferred Stock    
Document Information [Line Items]    
Title of 12(b) Security Variable Rate Series A Perpetual Stretch Preferred Stock, $0.001 par value per share  
Trading Symbol STRC  
Security Exchange Name NASDAQ  
8.00% Series A Perpetual Strike Preferred Stock    
Document Information [Line Items]    
Title of 12(b) Security 8.00% Series A Perpetual Strike Preferred Stock, $0.001 par value per share  
Trading Symbol STRK  
Security Exchange Name NASDAQ  
10.00% Series A Perpetual Stride Preferred Stock    
Document Information [Line Items]    
Title of 12(b) Security 10.00% Series A Perpetual Stride Preferred Stock, $0.001 par value per share  
Trading Symbol STRD  
Security Exchange Name NASDAQ  
Class A Common Stock    
Document Information [Line Items]    
Title of 12(b) Security Class A common stock, $0.001 par value per share  
Trading Symbol MSTR  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   364,585,501
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   19,640,250