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Employee Benefit Plans - Schedule of Aggregate Fair Value of Asset and Supplemental Asset Mix (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Defined Benefit Plan Disclosure [Line Items] |  |
CMRT asset value | $ 722.8 | $ 726.4
CMRT fair value input | 100.00% | 100.00%
CMRT asset mix | 100.00% | 100.00%
Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT fair value input | 79.00% | 82.00%
Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT fair value input | 4.00% | 1.00%
Level 3 Inputs |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT fair value input | 17.00% | 17.00%
Domestic Equities, Principally Publicly Traded |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT asset mix | 53.00% | 43.00%
International Equities, Publicly Traded |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT asset mix |  | 2.00%
Fixed Income Securities, Publicly Traded |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT asset mix | 35.00% | 12.00%
Privately Managed Limited Partnerships |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT asset mix | 11.00% | 8.00%
Other Assets |  |
Defined Benefit Plan Disclosure [Line Items] |  |
CMRT asset mix | 1.00% | 35.00%

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

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- Definition Fair value of CMRT plan assets attributable to the defined benefit pension plans to which two or more participating affiliates contribute. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Actual allocation percentage of CMRT plan assets according to the asset category (domestic equities, international equities, fixed income securities, privately managed limited partnerships, other). + References No definition available. + Details
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Namespace Prefix: | vhi_
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- Definition Actual allocation percentage of CMRT plan assets according to the fair value input level from the fair value hierarchy (Level I, Level 2 or Level 3). + References No definition available. + Details
Name: | vhi_PercentageOfCombinedMasterRetirementTrustFairValueInputs
Namespace Prefix: | vhi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant