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Business Segment Information - Additional Information (Detail) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2016 USD ($)
Segment Reporting Information [Line Items] |
Contract related intangible asset impairment | $ 5.1
Business interruption insurance proceeds | 2.0
Real Estate Management And Development |
Segment Reporting Information [Line Items] |
Contract related intangible asset impairment | 5.1
Chemicals |
Segment Reporting Information [Line Items] |
Business interruption insurance proceeds | $ 2.0
Kronos Worldwide, Inc. |
Segment Reporting Information [Line Items] |
Direct controlling interest in subsidiary | 50.00%
Indirect controlling interest in subsidiary | 30.00%
NL |
Segment Reporting Information [Line Items] |
Total controlling interest | 83.00%
LandWell |
Segment Reporting Information [Line Items] |
Direct controlling interest in subsidiary | 27.00%
Indirect controlling interest in subsidiary | 50.00%
BMI |
Segment Reporting Information [Line Items] |
Total controlling interest | 63.00%

X
- Definition The net amount (to the extent disclosed within this portion of the income statement) by which an insurance settlement exceeds incremental costs incurred from the event causing an interruption of business, plus the insurance award for earnings lost from the event, such as a natural catastrophe, explosion or fire. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6365675&loc=d3e16285-107787 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Controlling interest in subsidiary held directly by parent. + References No definition available. + Details
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- Definition Controlling interest in subsidiary held indirectly through controlled subsidiary of parent. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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