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Variable Interest Entities - Narrative (Details) | Dec. 31, 2025 | May 09, 2025 | Apr. 19, 2024
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Disposed of by sale | RFQ-hub |  |  |
Variable Interest Entity [Line Items] |  |  |
Divestiture of joint venture percentage |  | 49.00% | 49.00%
Disposal of minority interest, percentage |  | 2.00% |
JV building microwave communication networks in US and Europe |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership interest | 50.00% |  |
JV building microwave communication networks in US and Asia |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership of equity of JV held be each investor (as a percent) | 12.50% |  |
JV offering derivatives trading technology and execution services |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership interest | 9.80% |  |
JV developing a member-owned equities exchange with the goal of increasing competition |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership interest | 12.70% |  |
JV developing and operating cryptocurrency trading platform |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership interest | 8.50% |  |
JV Growth and expansion of multi-asset request-for-quote communication platform |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership interest |  |  | 51.00%
Disposal of minority interest, percentage |  | 2.00% |

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