Regulatory Requirement - Regulatory Capital and Capital Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Virtu Americas LLC
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	$ 536,647	$ 621,253
Regulatory Capital Requirement	1,194	2,917
Excess Regulatory Capital	535,453	618,336
Virtu ITG Canada Corp
Public Utilities, General Disclosures [Line Items]
Deposit funds for trade	400	400
Virtu ITG Canada Corp \| Canada
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	15,482	12,944
Regulatory Capital Requirement	198	196
Excess Regulatory Capital	15,284	12,748
Virtu Financial Canada ULC \| Canada
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	200	2,486
Regulatory Capital Requirement	198	196
Excess Regulatory Capital	2	2,290
Virtu ITG Europe Limited
Public Utilities, General Disclosures [Line Items]
Deposit funds for trade	100	200
Virtu ITG Europe Limited \| Ireland
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	79,087	57,459
Regulatory Capital Requirement	39,331	32,106
Excess Regulatory Capital	39,756	25,353
Virtu Financial Ireland Limited \| Ireland
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	107,293	94,528
Regulatory Capital Requirement	47,872	41,038
Excess Regulatory Capital	59,421	53,490
Virtu ITG UK Limited \| United Kingdom
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	1,142	1,290
Regulatory Capital Requirement	830	910
Excess Regulatory Capital	312	380
Virtu ITG Australia Limited \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	32,186	30,606
Regulatory Capital Requirement	7,164	12,729
Excess Regulatory Capital	25,022	17,877
Virtu ITG Hong Kong Limited
Public Utilities, General Disclosures [Line Items]
Capital settlement	30	30
Virtu ITG Hong Kong Limited \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	4,514	4,290
Regulatory Capital Requirement	529	625
Excess Regulatory Capital	3,985	3,665
Virtu ITG Singapore Pte Limited \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	897	796
Regulatory Capital Requirement	74	76
Excess Regulatory Capital	$ 823	$ 720

Amount of net capital in excess of minimum required net capital, calculated under Aggregate Indebtedness Standard.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Rule 15c3-1
-Number 240
-Section 15c3-1

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Minimum amount of net capital required to be maintained by broker-dealer and its subsidiary, calculated under Aggregate Indebtedness Standard.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Rule 15c3-1
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Amount of net capital of broker-dealer.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
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The amount of deposits held by branches of foreign institutions.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65207-112826

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The amount of reserves held by branches of foreign institutions.

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