v3.25.2
Stockholders' equity - Non-Controlling Interest (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 27, 2025
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2025
Dec. 31, 2024
Noncontrolling Interest [Line Items]          
Common stock, par value (in dollars per share)   $ 0.01   $ 0.01 $ 0.01
Consideration received on stock sale       $ 205,275,000  
Issuance of common stock   $ 215,275,000      
Non-controlling interest in American Bitcoin Corp.   17,000 $ 22,868,000    
Additional Paid-in Capital          
Noncontrolling Interest [Line Items]          
Issuance of common stock   122,556,000      
Non-controlling interest in American Bitcoin Corp.   $ (913,000) $ (1,354,000)    
American Bitcoin Corp | Additional Paid-in Capital          
Noncontrolling Interest [Line Items]          
Issuance of common stock $ 122,600,000        
American Bitcoin Corp | Private Placement          
Noncontrolling Interest [Line Items]          
Common stock, par value (in dollars per share)   $ 0.0001   $ 0.0001  
Gross proceeds       $ 200,000,000  
No of shares sold and issued 11,002,954        
Gross proceeds in cash and Bitcoin $ 220,100,000        
Consideration received on stock sale 215,300,000        
Aggregate commission 4,800,000        
Crypto assets consideration value 10,000,000        
Crypto asset, exchange rate 104,000        
Non-controlling interest in American Bitcoin Corp. $ 92,700,000        
American Bitcoin Corp | Private Placement | Maximum          
Noncontrolling Interest [Line Items]          
Gross proceeds       $ 250,000,000