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Segment Reporting - Operating Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | $ 444,011 | $ 491,429 | $ 1,356,876 | $ 1,472,982
Surfactants [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 290,830 | 318,486 | 921,124 | 987,957
Polymers [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | 134,726 | 152,955 | 377,703 | 420,332
Specialty Products [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net Sales | $ 18,455 | $ 19,988 | $ 58,049 | $ 64,693

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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