Long-Term Debt - Note Payable to Contran - Additional Information (Detail) (Kronos Worldwide, Inc., Contran, USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended
Feb. 28, 2013	Jun. 30, 2013
Debt Instrument [Line Items]
Promissory Note, maximum capacity	$ 290.0
Payment of Principal Amount		$ 5.0
Percentage of average interest rate, during period		7.375%
Percentage of average interest rate		7.375%
Term loan maturity date	Jun. 30, 2018
LIBOR
Debt Instrument [Line Items]
Interest rate terms		(with LIBOR no less than 1%) plus 5.125%
Debt instrument interest rate		5.125%
Base Rate
Debt Instrument [Line Items]
Interest rate terms		rate (as defined in the agreement) plus 4.125%
Debt instrument interest rate		4.125%

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Topic 210

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-Paragraph 2, 4

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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- Definition

Amount of the required periodic payments applied to principal.

+ References

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- Definition

The effective interest rate at the end of the reporting period.

+ References

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-SubTopic 10

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- Definition

The effective interest rate during the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

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