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Trust Expenses and Other Agreements (Details)	9 Months Ended
Trust Expenses and Other Agreements (Details)	Sep. 30, 2025
Trust Expenses And Other Agreements Abstract
Sponsor Fee Terms	The Trust pays the Sponsor a unified fee (the “Sponsor Fee”) of 0.20% of average daily net assets that accrues daily and pays monthly. Prior to February 21, 2024, the Sponsor Fee was 0.25% of average daily net assets. Effective for the period from March 12, 2024, through November 24, 2024, the Sponsor agreed to waive the entire Sponsor Fee for the first $1.5 billion of the Trust’s net assets. Effective for the period from November 25, 2024 through January 10, 2026, the Sponsor will waive the entire Sponsor Fee for the first $2.5 billion of the Trust’s assets. If the Trust’s assets exceed $2.5 billion prior to January 10, 2026, the Sponsor Fee charged on assets over $2.5 billion will be 0.20% of average daily net assets. After January 10, 2026, the Sponsor Fee will be 0.20% of average daily net assets. The Sponsor has agreed to pay all operating expenses (except for litigation expenses and other extraordinary expenses) out of the Sponsor Fee. The Sponsor from time to time will sell bitcoin, which may be facilitated by one or more liquidity providers and/or the Bitcoin Custodians, in such quantity as is necessary to permit payment of the Sponsor Fee and Trust expenses and liabilities not assumed by the Sponsor.