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Goodwill and Other Intangible Assets - Schedule of Changes in Carrying Value of Goodwill (Detail) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | $ 100,367,000 | $ 100,654,000
Accumulated impairment loss, Beginning Balance |  | (4,445,000) | (3,467,000)
Goodwill net, Beginning Balance |  | 95,922,000 | 97,187,000
Goodwill acquired | [1] |  | 1,792,000
Goodwill impairment |  | (1,543,000) | (978,000)
Foreign currency translation |  | 3,063,000 | (2,079,000)
Goodwill, Ending Balance |  | 103,430,000 | 100,367,000
Accumulated impairment loss, Ending Balance |  | (5,988,000) | (4,445,000)
Goodwill net, Ending Balance |  | 97,442,000 | 95,922,000
Surfactants Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | 28,137,000 | 25,689,000
Accumulated impairment loss, Beginning Balance |  | (4,445,000) | (3,467,000)
Goodwill net, Beginning Balance |  | 23,692,000 | 22,222,000
Goodwill acquired | [1] |  | 1,792,000
Goodwill impairment |  | (1,060,000) | (978,000)
Foreign currency translation |  | 1,644,000 | 656,000
Goodwill, Ending Balance |  | 29,781,000 | 28,137,000
Accumulated impairment loss, Ending Balance |  | (5,505,000) | (4,445,000)
Goodwill net, Ending Balance |  | 24,276,000 | 23,692,000
Polymer Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | 71,747,000 | 74,482,000
Goodwill net, Beginning Balance |  | 71,747,000 | 74,482,000
Foreign currency translation |  | 1,419,000 | (2,735,000)
Goodwill, Ending Balance |  | 73,166,000 | 71,747,000
Goodwill net, Ending Balance |  | 73,166,000 | 71,747,000
Specialty Products Segment [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance |  | 483,000 | 483,000
Goodwill net, Beginning Balance |  | 483,000 | 483,000
Goodwill impairment |  | (483,000) |
Goodwill, Ending Balance |  | 483,000 | 483,000
Accumulated impairment loss, Ending Balance |  | $ (483,000) |
Goodwill net, Ending Balance |  |  | $ 483,000
[1] | See Note 20, Acquisitions, of the notes to the Company’s consolidated financial statements (included in Item 8 of this Form 10-K) for information regarding the goodwill acquired in a business combination.

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