XML 50 R41.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Business Segment Information - Holding Percentage of Subsidiaries (Detail) | Sep. 30, 2022
--- | ---
Chemicals |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 81.00%
Component Products |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 87.00%
Real Estate Management And Development | BMI |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 63.00%
Real Estate Management And Development | LandWell | Aggregate General And Limited Interests |
Segment Reporting Information [Line Items] |
Controlling interest in subsidiary | 77.00%

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

X
- Definition Minority interest controlling percentage in subsidiary by parent. + References No definition available. + Details
Name: | vhi_MinorityInterestControllingPercentageInSubsidiaryByParent
Namespace Prefix: | vhi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=vhi_ChemicalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=vhi_ComponentProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=vhi_RealEstateManagementAndDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=vhi_BasicManagementIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=vhi_LandWellMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PartnerTypeOfPartnersCapitalAccountAxis=vhi_AggregateGeneralAndLimitedInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |