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Significant Accounting Policies - Summary of Trust's Assets Accounted at Fair Value (Details) - Investments in Crypto Assets, at Fair Value - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Assets | $ 3,367,647 | $ 3,762,723
Level 1 |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Assets | 3,367,647 | 3,762,723
Level 2 |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Assets | 0 | 0
Level 3 |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |
Assets | $ 0 | $ 0

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