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Long-Term Debt - Kronos Term Loan - Additional Information (Detail) (USD $) | 12 Months Ended | 1 Months Ended | 3 Months Ended | 6 Months Ended | 1 Months Ended | 12 Months Ended | 7 Months Ended |  | 1 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Feb. 28, 2014 Contran Subsequent Event | Feb. 28, 2014 2014 Term Loan Subsequent Event | Feb. 28, 2014 2014 Term Loan U.S. wholly-owned subsidiaries Subsequent Event | Feb. 28, 2014 2014 Term Loan Canadian first-tier European subsidiaries Subsequent Event | Jun. 30, 2012 Kronos Worldwide, Inc. | Dec. 31, 2011 Kronos Worldwide, Inc. | Feb. 28, 2013 Kronos Worldwide, Inc. Contran | Dec. 31, 2013 Kronos Worldwide, Inc. Contran | Jul. 30, 2013 Kronos Worldwide, Inc. Term Loan | Dec. 31, 2012 Kronos Worldwide, Inc. Term Loan | Feb. 28, 2014 Kronos Worldwide, Inc. 2014 Term Loan Subsequent Event | Feb. 28, 2014 Kronos Worldwide, Inc. 2014 Term Loan Remaining Proceeds Available For Use Subsequent Event | Feb. 28, 2014 Kronos Worldwide, Inc. 2014 Term Loan Libor Rate Subsequent Event | Feb. 28, 2014 Kronos Worldwide, Inc. 2014 Term Loan Base Rate Subsequent Event | Jul. 31, 2013 Kronos Worldwide, Inc. Principal Prepayment Term Loan | Feb. 28, 2013 Kronos Worldwide, Inc. Principal Prepayment Term Loan | Jul. 31, 2013 Kronos Worldwide, Inc. Prepayment Funded By Borrowings Principal Prepayment Term Loan
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of Principal Amount |  |  |  | $ 170,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000 | $ 290,000,000 |
Pre Tax Interest Charge | (8,900,000) | (7,200,000) | (3,100,000) |  |  |  |  | 7,200,000 | 200,000 |  |  |  |  |  |  |  |  | 2,300,000 | 6,600,000 |
Cash used for payment of term loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000,000 | 100,000,000 | 50,000,000
Borrowing from Contran for prepayment of term loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 190,000,000 |
Percentage of average interest rate, during period |  |  |  |  |  |  |  |  |  |  | 7.375% | 6.80% |  |  |  |  |  |  |  |
Unamortized discount balance |  |  |  |  |  |  |  |  |  |  |  |  | 5,500,000 |  |  |  |  |  |  |
Principal amount of promissory note |  |  |  |  |  |  |  |  |  |  |  |  |  | 350,000,000 |  |  |  |  |  |
Percentage of loan issued to principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 99.50% |  |  |  |  |  |
Borrowings under credit facility during the period |  |  |  |  |  |  |  |  |  |  |  |  |  | 348,250,000 | 172,800,000 |  |  |  |  |
Minimum LIBOR rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |
Debt instrument, Variable rate spread |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.75% | 2.75% |  |  |
Quarterly principal repayments |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  | 875,000 |  |  |  |  |  |
Quarterly principle repayments, commencing date |  |  |  |  |  |  |  |  |  |  |  |  |  | Jun. 30, 2014 |  |  |  |  |  |
Loans maturity period |  |  |  |  |  |  |  |  |  | Jun. 30, 2018 |  |  |  | Feb. 28, 2020 |  |  |  |  |  |
Long term debt prepayments terms |  |  |  |  |  |  |  |  |  |  |  |  |  | Voluntary principal prepayments are permitted at any time, provided that a call premium of 1% of the principal amount of such prepayment applies to any voluntary prepayment made on or before February 2015 (there is no prepayment penalty applicable to any voluntary prepayment after February 2015) |  |  |  |  |  |
Call premium percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |
Voluntary prepayment, earliest date |  |  |  |  |  |  |  |  |  |  |  |  |  | Feb. 28, 2015 |  |  |  |  |  |
Term Loan Collateralized Priority |  |  |  |  |  | 100.00% | 65.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Loan pledged as collateral from wholly-owned subsidiary |  |  |  |  | 395,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum amount of debt default for using customary default provisions |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates. + 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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