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Significant Accounting Policies - Schedule of Unobservable Inputs, Including the Trust’s Assumptions (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Assets |  |
Investment in bitcoin | $ 3,305,394 | $ 4,352,648
Level 1 [Member] |  |
Assets |  |
Investment in bitcoin | 3,305,394 | 4,352,648
Level 2 [Member] |  |
Assets |  |
Investment in bitcoin |  |
Level 3 [Member] |  |
Assets |  |
Investment in bitcoin |  |

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