Risk and Uncertainties (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Exchange Traded Products [Member] | Coinshares International Limited [Member] | ||
| Risk and Uncertainties (Details) [Line Items] | ||
| Digital assets | $ 1,145.4 | $ 1,191.0 |