v3.26.3
Certificate Liabilities - Schedule of Fair Value of the Certificate Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
CoinShares XBT Provider      
Total XBT Certificate Liabilities $ 1,358,004 $ 2,465,007  
CoinShares Physical      
Total CS Physical certificate liabilities 1,406,792 2,041,154  
CoinShares XBT Provider Physical      
Total XBT CS Physical Certificate Liabilities 1,326 1,279  
Coinshares International Limited [Member]      
CoinShares XBT Provider      
Total XBT Certificate Liabilities   2,465,007 $ 3,695,537
CoinShares Physical      
Total CS Physical certificate liabilities   2,041,154 1,453,943
CoinShares XBT Provider Physical      
Total XBT CS Physical Certificate Liabilities   1,279
CoinShares XBTP - Bitcoin [Member]      
CoinShares XBT Provider      
Total XBT Certificate Liabilities 1,042,940 1,768,572  
CoinShares XBTP - Bitcoin [Member] | Coinshares International Limited [Member]      
CoinShares XBT Provider      
Total XBT Certificate Liabilities   1,768,572 2,675,425
CoinShares XBTP - Ethereum [Member]      
CoinShares XBT Provider      
Total XBT Certificate Liabilities 315,064 696,435  
CoinShares XBTP - Ethereum [Member] | Coinshares International Limited [Member]      
CoinShares XBT Provider      
Total XBT Certificate Liabilities   696,435 1,020,112
CoinShares Physical - Bitcoin [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities 882,116 1,222,197  
CoinShares Physical - Bitcoin [Member] | Coinshares International Limited [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities   1,222,197 773,007
CoinShares Physical - Staked Ethereum [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities 195,192 291,152  
CoinShares Physical - Staked Ethereum [Member] | Coinshares International Limited [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities   291,152 278,318
CoinShares Physical - Staked Solana [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities 111,714 189,058  
CoinShares Physical - Staked Solana [Member] | Coinshares International Limited [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities   189,058 127,568
CoinShares Physical - XRP [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities 125,444 226,084  
CoinShares Physical - XRP [Member] | Coinshares International Limited [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities   226,084 144,313
CoinShares Physical - Other [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities 92,326 112,663  
CoinShares Physical - Other [Member] | Coinshares International Limited [Member]      
CoinShares Physical      
Total CS Physical certificate liabilities   112,663 130,737
CS XBTP Physical Staked Solana [Member]      
CoinShares XBT Provider Physical      
Total XBT CS Physical Certificate Liabilities 542 613  
CS XBTP Physical Staked Solana [Member] | Coinshares International Limited [Member]      
CoinShares XBT Provider Physical      
Total XBT CS Physical Certificate Liabilities   613
CS XBTP Physical Other [Member]      
CoinShares XBT Provider Physical      
Total XBT CS Physical Certificate Liabilities $ 784 666  
CS XBTP Physical Other [Member] | Coinshares International Limited [Member]      
CoinShares XBT Provider Physical      
Total XBT CS Physical Certificate Liabilities   $ 666