v3.26.3
Fair Value - Schedule of Additional Items Measured on a Recurring Basis at Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Liabilities        
Total Liabilities $ 2,766,122 $ 4,507,440 $ 5,149,480 $ 2,948,821
Coinshares International Limited [Member]        
Assets        
Total Assets   5,262,407 5,878,817  
Liabilities        
Total Liabilities   4,675,814 5,391,546  
Coinshares International Limited [Member] | Fair Value, Inputs, Level 1 [Member]        
Assets        
Total Assets   4,008,462 4,477,855  
Liabilities        
Total Liabilities   4,675,814 5,391,546  
Coinshares International Limited [Member] | Fair Value, Inputs, Level 2 [Member]        
Assets        
Total Assets   1,253,945 1,400,962  
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | Fair Value, Inputs, Level 3 [Member]        
Assets        
Total Assets    
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | Digital assets - held for operations [Member]        
Assets        
Total Assets   3,974,713 4,466,678  
Coinshares International Limited [Member] | Digital assets - held for operations [Member] | Fair Value, Inputs, Level 1 [Member]        
Assets        
Total Assets   3,974,713 4,466,678  
Coinshares International Limited [Member] | Digital assets - held for operations [Member] | Fair Value, Inputs, Level 2 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Digital assets - held for operations [Member] | Fair Value, Inputs, Level 3 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Digital assets - held as treasury [Member]        
Assets        
Total Assets   33,354 15,249  
Coinshares International Limited [Member] | Digital assets - held as treasury [Member] | Fair Value, Inputs, Level 1 [Member]        
Assets        
Total Assets   33,354 11,177  
Coinshares International Limited [Member] | Digital assets - held as treasury [Member] | Fair Value, Inputs, Level 2 [Member]        
Assets        
Total Assets   4,072  
Coinshares International Limited [Member] | Digital assets - held as treasury [Member] | Fair Value, Inputs, Level 3 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Digital asset ETPs [Member]        
Assets        
Total Assets   1,145,428 1,190,998  
Coinshares International Limited [Member] | Digital asset ETPs [Member] | Fair Value, Inputs, Level 1 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Digital asset ETPs [Member] | Fair Value, Inputs, Level 2 [Member]        
Assets        
Total Assets   1,145,428 1,190,998  
Coinshares International Limited [Member] | Digital asset ETPs [Member] | Fair Value, Inputs, Level 3 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Digital asset receivables, net [Member]        
Assets        
Total Assets   108,517 205,892  
Coinshares International Limited [Member] | Digital asset receivables, net [Member] | Fair Value, Inputs, Level 1 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Digital asset receivables, net [Member] | Fair Value, Inputs, Level 2 [Member]        
Assets        
Total Assets   108,517 205,892  
Coinshares International Limited [Member] | Digital asset receivables, net [Member] | Fair Value, Inputs, Level 3 [Member]        
Assets        
Total Assets    
Coinshares International Limited [Member] | Prepaid and Other Current Assets – Cash Settled Digital Asset Futures [Member]        
Assets        
Total Assets [1]   395    
Coinshares International Limited [Member] | Prepaid and Other Current Assets – Cash Settled Digital Asset Futures [Member] | Fair Value, Inputs, Level 1 [Member]        
Assets        
Total Assets [1]   395    
Coinshares International Limited [Member] | Prepaid and Other Current Assets – Cash Settled Digital Asset Futures [Member] | Fair Value, Inputs, Level 2 [Member]        
Assets        
Total Assets [1]      
Coinshares International Limited [Member] | Prepaid and Other Current Assets – Cash Settled Digital Asset Futures [Member] | Fair Value, Inputs, Level 3 [Member]        
Assets        
Total Assets [1]      
Coinshares International Limited [Member] | XBT Certificate Liabilities [Member]        
Liabilities        
Total Liabilities   2,465,007 3,695,537  
Coinshares International Limited [Member] | XBT Certificate Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]        
Liabilities        
Total Liabilities   2,465,007 3,695,537  
Coinshares International Limited [Member] | XBT Certificate Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]        
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | XBT Certificate Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]        
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | XBT CS Physical Certificate Liabilities [Member]        
Liabilities        
Total Liabilities   1,279    
Coinshares International Limited [Member] | XBT CS Physical Certificate Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]        
Liabilities        
Total Liabilities   1,279    
Coinshares International Limited [Member] | XBT CS Physical Certificate Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]        
Liabilities        
Total Liabilities      
Coinshares International Limited [Member] | XBT CS Physical Certificate Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]        
Liabilities        
Total Liabilities      
Coinshares International Limited [Member] | CS Physical Certificate Liabilities [Member]        
Liabilities        
Total Liabilities   2,041,154 1,453,943  
Coinshares International Limited [Member] | CS Physical Certificate Liabilities [Member] | Fair Value, Inputs, Level 1 [Member]        
Liabilities        
Total Liabilities   2,041,154 1,453,943  
Coinshares International Limited [Member] | CS Physical Certificate Liabilities [Member] | Fair Value, Inputs, Level 2 [Member]        
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | CS Physical Certificate Liabilities [Member] | Fair Value, Inputs, Level 3 [Member]        
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | Digital asset payables [Member]        
Liabilities        
Total Liabilities   168,374 241,705  
Coinshares International Limited [Member] | Digital asset payables [Member] | Fair Value, Inputs, Level 1 [Member]        
Liabilities        
Total Liabilities   168,374 241,705  
Coinshares International Limited [Member] | Digital asset payables [Member] | Fair Value, Inputs, Level 2 [Member]        
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | Digital asset payables [Member] | Fair Value, Inputs, Level 3 [Member]        
Liabilities        
Total Liabilities    
Coinshares International Limited [Member] | Trade and Other Payables – Cash Settled Digital Asset Futures [Member]        
Liabilities        
Total Liabilities     361  
Coinshares International Limited [Member] | Trade and Other Payables – Cash Settled Digital Asset Futures [Member] | Fair Value, Inputs, Level 1 [Member]        
Liabilities        
Total Liabilities     $ 361  
[1] Represents the value of cash settled digital asset futures.