v3.25.4
Significant Accounting Policies - Summary of Principal Market and the Principal Market Prices for Portfolio Cryto Assets Comprised Majority of Trust Assets (Detail) - Fair Value Measured at Net Asset Value Per Share [Member]
Dec. 31, 2025
$ / shares
Bitcoin [Member] | Crypto.com [Member]  
Accounting Policies [Line Items]  
Principal Market Price $ 87,544
Ethereum [Member] | Crypto.com [Member]  
Accounting Policies [Line Items]  
Principal Market Price 2,971.94
XRP [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price 1.83
Solana [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price 123.96
Cardano [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price 0.33
Avalanche [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price 12.33
Chainlink [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price 12.24
Polkadot [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price 1.78
Sui [Member] | Coinbase [Member]  
Accounting Policies [Line Items]  
Principal Market Price $ 1.4