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Creations and Redemptions of Shares - Investment Owned Balanced Contract Payable (Details) $ in Thousands | Sep. 30, 2024 USD ($)
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Equity [Abstract] |
Bitcoin payable | $ 0

X
- Definition Investment owned balanced contract payable. + References No definition available. + Details
Name: | btc_InvestmentOwnedBalancedContractPayable
Namespace Prefix: | btc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration