Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees, order flow fees, and clearance fees.

+ References

No definition available.

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- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
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- Definition

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

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
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-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
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- Definition

Company Product Offerings Allowing Clients To Trade, Number Of Countries

+ References

No definition available.

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- Definition

Entity, Number Of Financial Instruments

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No definition available.

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- Definition

Entity, Number Of Venues

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No definition available.

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- Definition

Number Of Non-Operating Segments

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No definition available.

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- Definition

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

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No definition available.

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Organization and Basis of Presentation (Details) $ / shares in Units, instrument in Thousands, $ in Thousands		12 Months Ended
	Mar. 01, 2019 USD ($) $ / shares	Dec. 31, 2020 USD ($) instrument country segment venue	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Number of financial instruments \| instrument		25
Number of venues \| venue		235
Number of countries in which entity operates \| country		36
Company’s product offering in number of counties (over) \| country		50
Number of operating segments \| segment		2
Number of non-operating segments \| segment		1
Brokerage, exchange, clearance fees and payments for order flow, net		$ 758,843	$ 386,888	$ 376,424
Operations and administrative		$ 94,558	103,642	66,769
Revision of Prior Period, Adjustment
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Brokerage, exchange, clearance fees and payments for order flow, net			102,100	$ 74,600
Operations and administrative			$ 12,600
ITG
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Acquisition value (in dollars per share) \| $ / shares	$ 30.30
Total cash consideration	$ 1,000,000
Virtu Financial
Organization, Consolidation And Presentation Of Financial Statements [Line Items]
Ownership interest		64.10%