XML 68 R52.htm IDEA: XBRL DOCUMENT
v3.19.1

Summary of Significant Accounting Policies - Variable Interest Entities (Details) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2016 party | Mar. 31, 2019 USD ($) joint_venture | Dec. 31, 2018 USD ($)
Variable Interest Entity [Line Items] |  |  |
Number of joint ventures considered as VIEs | joint_venture |  | 3 |
Equity investment, Carrying Amount, Asset |  | $ 19,226 | $ 18,254
Equity investment, Carrying Amount, Liability |  | 0 | 0
Equity investment, Maximum Exposure to Loss |  | 19,226 | 18,254
Equity investment, VIEs' assets |  | $ 56,272 | $ 49,450
JV building microwave communication networks in US and Asia |  |  |
Variable Interest Entity [Line Items] |  |  |
Number of other investors in JV | party | 9 |  |
Ownership of voting shares of JV held be each investor (as a percent) |  | 11.00% |
Ownership of equity of JV held be each investor (as a percent) |  | 11.00% |
JV building microwave communication networks in US and Europe |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership of voting shares (as a percent) |  | 50.00% |
Ownership interest (as a percent) |  | 50.00% |
JV offering derivatives trading technology and execution services |  |  |
Variable Interest Entity [Line Items] |  |  |
Ownership interest (as a percent) |  | 10.00% |

X
- 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 -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of assets reported by an equity method investment of the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33912-111571 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612 + Details
Name: | us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5728-111685 + Details
Name: | us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of the liabilities in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5728-111685 + Details
Name: | us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This item represents the maximum exposure to loss for an equity method investment. + References No definition available. + Details
Name: | virt_EquityMethodInvestmentMaximumExposureToLoss
Namespace Prefix: | virt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of voting equity interests acquired in a joint venture. + References No definition available. + Details
Name: | virt_EquityMethodInvestmentVotingSharesPercentage
Namespace Prefix: | virt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of other investors in a joint venture. + References No definition available. + Details
Name: | virt_NumberOfOtherInvestorsInJointVenture
Namespace Prefix: | virt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage ownership of equity of joint venture held be each investor. + References No definition available. + Details
Name: | virt_PercentageOwnershipOfEquityOfJointVentureHeldByEachInvestor
Namespace Prefix: | virt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage ownership of voting shares of joint venture held be each investor. + References No definition available. + Details
Name: | virt_PercentageOwnershipOfVotingSharesOfJointVentureHeldByEachInvestor
Namespace Prefix: | virt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Variable Interest Entity, Number Of Entities + References No definition available. + Details
Name: | virt_VariableInterestEntityNumberOfEntities
Namespace Prefix: | virt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=virt_JointVentureBuildingMicrowaveCommunicationNetworksInUSAndAsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=virt_JointVentureBuildingMicrowaveCommunicationNetworksInUSAndEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=virt_JointVentureOfferingDerivativesTradingTechnologyAndExecutionServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |