Accounts Payable and Accrued Liabilities - Additional Information (Detail) $ in Millions	3 Months Ended
Mar. 31, 2016 USD ($)
Kronos Worldwide, Inc.
Accounts Payable And Accrued Liabilities [Line Items]
Workforce reduction costs paid	$ 0.6

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Name:	us-gaap_PaymentsForRestructuring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration