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Segment Reporting (Tables) | 6 Months Ended
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Jun. 30, 2018
Segment Reporting [Abstract] |
Operating Segment | The Company has three reportable segments: Surfactants, Polymers and Specialty Products. Net sales by segment for the three and six months ended June 30, 2018 and 2017, were as follows:
(In thousands) |  | Three Months Ended June 30 |  |  | Six Months Ended June 30 |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Segment Net Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Surfactants |  | $ | 356,884 |  |  | $ | 329,334 |  |  | $ | 715,824 |  |  | $ | 651,937 |
Polymers |  |  | 140,867 |  |  |  | 141,187 |  |  |  | 262,800 |  |  |  | 267,797 |
Specialty Products |  |  | 22,115 |  |  |  | 24,580 |  |  |  | 40,577 |  |  |  | 43,636 |
Total |  | $ | 519,866 |  |  | $ | 495,101 |  |  | $ | 1,019,201 |  |  | $ | 963,370 |
Reconciliation of Segment Information to Consolidated Financial Statements | Segment operating income and reconciliations of segment operating income to consolidated income before income taxes for the three and six months ended June 30, 2018 and 2017, are summarized below:
(In thousands) |  | Three Months Ended June 30 |  |  | Six Months Ended June 30 |
|  | 2018 |  |  | 2017(2) |  |  | 2018 |  |  | 2017(2) |
Segment Operating Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Surfactants |  | $ | 34,218 |  |  | $ | 31,164 |  |  | $ | 74,469 |  |  | $ | 69,535 |
Polymers |  |  | 19,458 |  |  |  | 21,283 |  |  |  | 36,352 |  |  |  | 42,708 |
Specialty Products |  |  | 4,240 |  |  |  | 5,451 |  |  |  | 3,890 |  |  |  | 6,737 |
Segment operating income |  |  | 57,916 |  |  |  | 57,898 |  |  |  | 114,711 |  |  |  | 118,980 |
Business restructuring |  |  | (273 | ) |  |  | (586 | ) |  |  | (631 | ) |  |  | (1,372 | )
Unallocated corporate expenses (1) |  |  | (12,958 | ) |  |  | (18,179 | ) |  |  | (29,740 | ) |  |  | (32,245 | )
Consolidated operating income |  |  | 44,685 |  |  |  | 39,133 |  |  |  | 84,340 |  |  |  | 85,363 |
Interest expense, net |  |  | (2,672 | ) |  |  | (2,863 | ) |  |  | (5,823 | ) |  |  | (5,855 | )
Other, net |  |  | 484 |  |  |  | 793 |  |  |  | 1,644 |  |  |  | 1,885 |
Consolidated income before income taxes |  | $ | 42,497 |  |  | $ | 37,063 |  |  | $ | 80,161 |  |  | $ | 81,393 |
| (1) | Unallocated corporate expenses primarily comprise corporate administrative expenses (e.g., corporate finance, legal, human resources, information systems, deferred compensation and environmental remediation) that are not included in segment operating income and not used to evaluate segment performance. |
(2) The 2017 data has been immaterially changed from the amounts originally reported as a result of the Company’s first quarter 2018 adoption of ASU No. 2017-7, Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.

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- Definition Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599 + Details
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