The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

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The number of countries in which the entity operates as of balance sheet date.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 49
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-49

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Company Product Offerings Allowing Clients To Trade, Number Of Countries

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Disposal Group, Including Discontinued Operation, Divestiture Of Interest In Joint Venture, Percentage

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Disposal Group, Including Discontinued Operation, Minority Interest, Percentage

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Entity, Number Of Financial Instruments

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Entity, Number Of Venues

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Number Of Non-Operating Segments

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Number of Significant Acquisitions

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[Line Items] for Organization, Consolidation And Presentation Of Financial Statements [Table]

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Organization and Basis of Presentation (Details) instrument in Thousands	9 Months Ended
	Sep. 30, 2025 segment country instrument acquisition venue	May 09, 2025	Apr. 19, 2024
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Number of financial instruments \| instrument	25
Number of venues \| venue	250
Number of countries in which entity operates \| country	40
Company’s product offering in number of counties (over) \| country	50
Number of significant acquisitions \| acquisition	2
Number of operating segments \| segment	2
Number of non-operating segments \| segment	1
Disposed of by sale \| RFQ-hub
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Divestiture of joint venture percentage		49.00%	49.00%
Disposal of minority interest, percentage		2.00%
Virtu Financial
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Ownership interest	57.20%