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Business Segment Information - Holding Percentage of Subsidiaries (Detail) | Mar. 31, 2015
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Chemicals | Kronos Worldwide, Inc. |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 80.00%vhi_MinorityInterestControllingPercentageInSubsidiaryByParent / dei_LegalEntityAxis = vhi_KronosMember / us-gaap_StatementBusinessSegmentsAxis = vhi_ChemicalsMember
Component Products | CompX |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 87.00%vhi_MinorityInterestControllingPercentageInSubsidiaryByParent / dei_LegalEntityAxis = vhi_CompXMember / us-gaap_StatementBusinessSegmentsAxis = vhi_ComponentProductsMember
Waste Management | WCS |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 100.00%vhi_MinorityInterestControllingPercentageInSubsidiaryByParent / dei_LegalEntityAxis = vhi_WcsMember / us-gaap_StatementBusinessSegmentsAxis = vhi_WasteManagementMember
Real Estate Management And Development | BMI |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 63.00%vhi_MinorityInterestControllingPercentageInSubsidiaryByParent / dei_LegalEntityAxis = vhi_BasicManagementMember / us-gaap_StatementBusinessSegmentsAxis = vhi_RealEstateManagementAndDevelopmentMember
Real Estate Management And Development | LandWell | Aggregate General And Limited Interests |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 77.00%vhi_MinorityInterestControllingPercentageInSubsidiaryByParent / dei_LegalEntityAxis = vhi_LandwellMember / us-gaap_PartnerTypeOfPartnersCapitalAccountAxis = vhi_AggregateGeneralAndLimitedInterestsMember / us-gaap_StatementBusinessSegmentsAxis = vhi_RealEstateManagementAndDevelopmentMember

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- Definition Minority interest controlling percentage in subsidiary by parent. + References No definition available. + Details
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