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Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | $ 26,421 | $ 28,585
Accumulated impairment loss, Beginning Balance |  | (3,467) | (3,467)
Goodwill net, Beginning Balance |  | 22,954 | 25,118
Goodwill acquired | [1] | 3,497 |
Foreign currency translation |  | (365) | (2,164)
Goodwill, Ending Balance |  | 29,553 | 26,421
Accumulated impairment loss, Ending Balance |  | (3,467) | (3,467)
Goodwill net, Ending Balance |  | 26,086 | 22,954
Surfactants Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | 20,521 | 22,627
Accumulated impairment loss, Beginning Balance |  | (3,467) | (3,467)
Goodwill net, Beginning Balance |  | 17,054 | 19,160
Goodwill acquired | [1] | 3,497 |
Foreign currency translation |  | (354) | (2,106)
Goodwill, Ending Balance |  | 23,664 | 20,521
Accumulated impairment loss, Ending Balance |  | (3,467) | (3,467)
Goodwill net, Ending Balance |  | 20,197 | 17,054
Polymer Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | 5,417 | 5,475
Goodwill net, Beginning Balance |  | 5,417 | 5,475
Foreign currency translation |  | (11) | (58)
Goodwill, Ending Balance |  | 5,406 | 5,417
Goodwill net, Ending Balance |  | 5,406 | 5,417
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
[1] | See Note 21 for information regarding the goodwill acquired in a business combination.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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