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Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | $ 14,969 | $ 15,193
Accumulated impairment loss, Beginning Balance | (3,467) | (3,467)
Goodwill net, Beginning Balance | 11,502 | 11,726
Foreign currency translation | (237) | (224)
Goodwill, Ending Balance | 14,732 | 14,969
Accumulated impairment loss, Ending Balance | (3,467) | (3,467)
Goodwill net, Ending Balance | 11,265 | 11,502
Surfactants Segment [Member] |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 9,025 | 9,107
Accumulated impairment loss, Beginning Balance | (3,467) | (3,467)
Goodwill net, Beginning Balance | 5,558 | 5,640
Foreign currency translation | (156) | (82)
Goodwill, Ending Balance | 8,869 | 9,025
Accumulated impairment loss, Ending Balance | (3,467) | (3,467)
Goodwill net, Ending Balance | 5,402 | 5,558
Polymer Segment [Member] |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 5,461 | 5,603
Goodwill net, Beginning Balance | 5,461 | 5,603
Foreign currency translation | (81) | (142)
Goodwill, Ending Balance | 5,380 | 5,461
Goodwill net, Ending Balance | 5,380 | 5,461
Specialty Products Segment [Member] |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 483 | 483
Goodwill net, Beginning Balance | 483 | 483
Goodwill, Ending Balance | 483 | 483
Goodwill net, Ending Balance | $ 483 | $ 483

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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