XML 69 R59.htm IDEA: XBRL DOCUMENT
v3.21.1

Other Income, Net - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disclosure Other Income Net Additional Information Detail [Line Items] |  |
Infrastructure reimbursement | $ 6.2 | $ 19.1
Kronos Worldwide, Inc. |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |
Gain on insurance settlement related to property damage claim |  | 1.5
City Of Henderson |  |
Disclosure Other Income Net Additional Information Detail [Line Items] |  |
Infrastructure reimbursement | $ 6.2 | $ 19.1

X
- Definition Disclosure Other Income Net Additional Information Detail [Line Items] + References No definition available. + Details
Name: | vhi_DisclosureOtherIncomeNetAdditionalInformationDetailLineItems
Namespace Prefix: | vhi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gain (loss) on insurance settlement. + References No definition available. + Details
Name: | vhi_GainLossOnInsuranceSettlement
Namespace Prefix: | vhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Infrastructure development cost reimbursed. + References No definition available. + Details
Name: | vhi_InfrastructureDevelopmentCostReimbursed
Namespace Prefix: | vhi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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