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Contingencies - Additional Information (Detail) - USD ($) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Site Contingency [Line Items] |  |  |
Environmental and legal losses | $ 21,700,000 |  | $ 20,900,000
Cash outlays related to legal and environmental matters | 600,000 | $ 1,900,000 |
VAT inflation, penalty and interest charges | $ 0 |  |
Wilmington Site [Member] |  |  |
Site Contingency [Line Items] |  |  |
Contribution for future response costs | 5.00% |  |
Payment of environmental response costs | $ 2,500,000 |  |
Minimum [Member] |  |  |
Site Contingency [Line Items] |  |  |
Environmental and legal losses | 21,700,000 |  |
Maximum [Member] |  |  |
Site Contingency [Line Items] |  |  |
Environmental and legal losses | $ 42,400,000 |  |

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- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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