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Fair Value of Bitcoin - Additional Information (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 USD ($) Bitcoin $ / shares | Dec. 31, 2024 USD ($) Bitcoin $ / shares | Jan. 10, 2024 Bitcoin
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Trust held net closing balance of bitcoin | Bitcoin | 38,468.0468 | 40,289.1335 | 0
CME CF Bitcoin |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Fair value of bitcoins acquired | $ | $ 3,358,857,898,000 | $ 3,776,314,581 |
Bitcoin index price per share | $ / shares | $ 87,315.53 | $ 93,730.35 |
Lukka Prime Rate |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Fair value of bitcoins acquired | $ | $ 3,367,646,692,000 | $ 3,762,723,445 |
Bitcoin index price per share | $ / shares | $ 87,544 | $ 93,393.01 |

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