Regulatory Requirement - Regulatory Capital and Capital Requirements (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Virtu Americas LLC
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	$ 612,161	$ 561,242
Regulatory Capital Requirement	10,436	1,000
Excess Regulatory Capital	601,725	560,242
Virtu Canada Corp \| Canada
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	17,635
Regulatory Capital Requirement	176
Excess Regulatory Capital	17,459
Virtu Canada Corp \| Canada
Public Utilities, General Disclosures [Line Items]
Regulatory Capital		15,133
Regulatory Capital Requirement		182
Excess Regulatory Capital		14,951
Virtu Europe Trading Limited \| Ireland
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	95,656	86,656
Regulatory Capital Requirement	34,548	28,283
Excess Regulatory Capital	61,108	58,373
Virtu Financial Ireland Limited \| Ireland
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	184,097	122,901
Regulatory Capital Requirement	84,722	64,951
Excess Regulatory Capital	99,375	57,950
Virtu ITG UK Limited \| United Kingdom
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	2,183	2,218
Regulatory Capital Requirement	995	1,011
Excess Regulatory Capital	1,188	1,207
Virtu ITG Australia Limited \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	47,630	35,511
Regulatory Capital Requirement	22,382	13,262
Excess Regulatory Capital	25,248	22,249
Virtu ITG Hong Kong Limited \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	9,929	8,200
Regulatory Capital Requirement	394	586
Excess Regulatory Capital	9,535	7,614
Virtu ITG Singapore Pte Limited \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	1,089	1,062
Regulatory Capital Requirement	213	218
Excess Regulatory Capital	876	844
Virtu Financial Singapore Pte. Ltd. \| Asia Pacific
Public Utilities, General Disclosures [Line Items]
Regulatory Capital	329,961	278,288
Regulatory Capital Requirement	229,758	198,100
Excess Regulatory Capital	$ 100,203	$ 80,188

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
-Name Rule 15c3-1
-Number 240
-Section 15c3-1
-Publisher SEC

+ Details

Name:	srt_ExcessNetCapitalAt1500Percent
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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
-Name Rule 15c3-1
-Number 240
-Section 15c3-1
-Publisher SEC

+ Details

Name:	srt_MinimumNetCapitalRequired1
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of net capital of broker-dealer.

+ References

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

+ Details

Name:	srt_NetCapital
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesGeneralDisclosuresLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=virt_VirtuAmericasLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuCanadaCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_CA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuITGCanadaCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuEuropeTradingLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_IE
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuFinancialIrelandLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuITGUKLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=country_GB
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuITGAustraliaLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=srt_AsiaPacificMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuITGHongKongLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuITGSingaporePteLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=virt_VirtuFinancialSingaporePteLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: