v3.26.3
Basic and Diluted Earnings (Loss) per Common Share - Computation of Basic and Diluted Loss per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Numerator - Basic and Diluted:        
Net income (loss) $ 19,532,972 $ 2,785,024 $ (1,229,326) $ 8,588,500
Dividends on preferred stock (419,556) (139,898) (1,049,744) (198,040)
Deemed contribution related to preferred stock repurchases 5,517 0 5,517 0
Net income (loss) attributable to common stockholders of Strategy 19,118,933 2,645,126 (2,273,553) 8,390,460
Dividends on STRK Stock 28,041 0   0
Net income (loss) - Diluted $ 19,157,093 $ 2,655,838 $ (2,273,553) $ 8,422,442
Denominator - Basic and Diluted:        
Weighted average common shares outstanding - Basic (in shares) 400,148 284,376 362,441 272,143
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible preferred stock (in shares) 1,402 0   0
Weighted average common shares outstanding - Diluted (in shares) 428,049 315,393 362,441 303,986
Earnings (loss) per common share:        
Basic (loss) earnings per common share (in dollars per share) [1] $ 47.78 $ 9.30 $ (6.27) $ 30.83
Diluted (loss) earnings per common share (in dollars per share) [1] $ 44.75 $ 8.42 $ (6.27) $ 27.71
Stock options        
Effect of dilutive shares on weighted average common shares outstanding:        
Share-based payment arrangements (in shares) 2,074 3,419   3,704
Restricted stock units        
Effect of dilutive shares on weighted average common shares outstanding:        
Share-based payment arrangements (in shares) 157 655   769
Performance Shares [Member]        
Effect of dilutive shares on weighted average common shares outstanding:        
Share-based payment arrangements (in shares) 59 503   508
Employee stock purchase plan        
Effect of dilutive shares on weighted average common shares outstanding:        
Share-based payment arrangements (in shares) 0 0   2
Class A Common Stock        
Denominator - Basic and Diluted:        
Weighted average common shares outstanding - Basic (in shares) 380,508 264,736 342,801 252,503
Class B Common Stock        
Denominator - Basic and Diluted:        
Weighted average common shares outstanding - Basic (in shares) 19,640 19,640 19,640 19,640
2027 Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 0 $ 0   $ 286
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 0 0   1,315
2028 Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 1,882 $ 1,871   $ 5,626
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 5,513 5,513   5,513
2029 Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 650 $ 1,296   $ 3,899
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 2,231 4,462   4,462
2030A Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 1,602 $ 1,592   $ 4,786
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 5,342 5,342   5,342
2030B Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 893 $ 890   $ 2,154
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 4,614 4,614   3,719
2031 Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 1,387 $ 1,378   $ 4,145
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 2,594 2,594   2,594
2032 Convertible Notes        
Numerator - Basic and Diluted:        
Interest expense on Convertible Notes, net of tax $ 3,705 $ 3,685   $ 11,086
Effect of dilutive shares on weighted average common shares outstanding:        
Convertible Notes (in shares) 3,915 3,915   3,915
[1] Basic and fully diluted earnings (loss) per common share for class A and class B common stock are the same.