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Long-Term Debt - Valhi Contran Credit Facility - Additional Information (Detail) (VALHI, INC., Contran, USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015
VALHI, INC. | Contran |
Debt Instrument [Line Items] |
Net borrowings | $ 5.5 us-gaap_ProceedsFromLongTermLinesOfCredit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = vhi_ContranMember
Percentage of average interest rate | 4.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = vhi_ContranMember
Percentage of average interest rate, during period | 4.25%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = vhi_ContranMember
Amount available for borrowing | $ 45.8 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = vhi_ContranMember

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- Details
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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The effective interest rate during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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