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Fair Value of Bitcoin - Summary of changes in quantity of Bitcoin and the respective fair value (Detail) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2023 USD ($) NUMBER | Sep. 30, 2023 USD ($) | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) NUMBER | Dec. 31, 2022 USD ($) NUMBER | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) NUMBER | Dec. 31, 2023 USD ($) NUMBER | Dec. 31, 2022 USD ($) NUMBER | Dec. 31, 2021 USD ($) NUMBER
Fair Value Disclosures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investment Owned ,Balance | NUMBER |  |  |  | 632,041.52945742 |  |  |  | 644,809.96863835 | 632,041.52945742 | 644,809.96863835 | 607,039.48515191
Bitcoin contributed | NUMBER |  |  |  |  |  |  |  |  | 0 | 0 | 50,738.88950472
Bitcoin distributed for Sponsor's Fee, related party | NUMBER |  |  |  |  |  |  |  |  | (12,515.60028722) | (12,768.43918093) | (12,968.40601828)
Investment Owned ,Balance | NUMBER | 619,525.9291702 |  |  |  | 632,041.52945742 |  |  |  | 619,525.9291702 | 632,041.52945742 | 644,809.96863835
Investment Owned ,Balance |  |  |  | $ 10,464,263 |  |  |  | $ 29,576,053 | $ 10,464,263 | $ 29,576,053 | $ 17,716,478
Bitcoin contributed |  |  |  |  |  |  |  |  | 0 | 0 | 1,905,227
Bitcoin distributed for Sponsor's Fee, related party |  |  |  |  |  |  |  |  | (360,561) | (360,683) | (615,420)
Net change in unrealized appreciation (depreciation) on investment in Bitcoin | $ 9,555,222 | $ (2,134,266) | $ 1,131,742 | 7,475,264 | $ (1,874,275) | $ 347,631 | $ (17,156,233) | (284,294) | 16,027,962 | (18,967,171) | 10,099,600
Net realized gain on investment in Bitcoin | 78,005 | $ 52,764 | $ 52,169 | $ 35,868 | 21,558 | $ 31,890 | $ 67,520 | $ 95,096 | 218,806 | 216,064 | 470,168
Investment Owned ,Balance | $ 26,350,470 |  |  |  | $ 10,464,263 |  |  |  | $ 26,350,470 | $ 10,464,263 | $ 29,576,053

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