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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Changes in Carrying Value of Goodwill | The changes in the carrying value of goodwill for the years ended December 31, 2024 and 2023, were as follows:
|  | Surfactants Segment |  |  | Polymer Segment |  |  | Specialty Products Segment |  |  | Total |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Balance as of January 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 29,781 |  |  | $ | 28,137 |  |  | $ | 73,166 |  |  | $ | 71,747 |  |  | $ | 483 |  |  | $ | 483 |  |  | $ | 103,430 |  |  | $ | 100,367 |
Accumulated impairment loss |  |  | (5,505 | ) |  |  | (4,445 | ) |  |  | — |  |  |  | — |  |  |  | (483 | ) |  |  | — |  |  |  | (5,988 | ) |  |  | (4,445 | )
Goodwill, net |  |  | 24,276 |  |  |  | 23,692 |  |  |  | 73,166 |  |  |  | 71,747 |  |  |  | 0 |  |  |  | 483 |  |  |  | 97,442 |  |  |  | 95,922 |
Goodwill impairment |  |  | — |  |  |  | (1,060 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (483 | ) |  |  | — |  |  |  | (1,543 | )
Foreign currency translation |  |  | (3,305 | ) |  |  | 1,644 |  |  |  | (2,769 | ) |  |  | 1,419 |  |  |  | — |  |  |  | — |  |  |  | (6,074 | ) |  |  | 3,063 |
Balance as of December 31 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  | 26,476 |  |  |  | 29,781 |  |  |  | 70,397 |  |  |  | 73,166 |  |  |  | 483 |  |  |  | 483 |  |  |  | 97,356 |  |  |  | 103,430 |
Accumulated impairment loss |  |  | (5,505 | ) |  |  | (5,505 | ) |  |  | — |  |  |  | — |  |  |  | (483 | ) |  |  | (483 | ) |  |  | (5,988 | ) |  |  | (5,988 | )
Goodwill, net |  | $ | 20,971 |  |  | $ | 24,276 |  |  | $ | 70,397 |  |  | $ | 73,166 |  |  | $ | — |  |  | $ | — |  |  | $ | 91,368 |  |  | $ | 97,442 |
Components of Other Intangible Assets and Changes in Gross Carrying Values | The following table presents the components of other intangible assets, all of which have finite lives, as of December 31, 2024 and 2023. The year-over-year changes in gross carrying values resulted from the effects of foreign currency translation.
|  | Gross Carrying Value |  |  | Accumulated Amortization |
|  | December 31 |  |  | December 31 |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Other Intangible Assets: |  |  |  |  |  |  |  |  |  |  |  |
Patents |  | $ | 7,411 |  |  | $ | 7,411 |  |  | $ | 7,095 |  |  | $ | 7,063 |
Non-compete agreements |  |  | 329 |  |  |  | 401 |  |  |  | 329 |  |  |  | 401 |
Trademarks |  |  | 11,567 |  |  |  | 11,662 |  |  |  | 7,749 |  |  |  | 6,705 |
Customer lists/relationships |  |  | 45,341 |  |  |  | 49,157 |  |  |  | 18,415 |  |  |  | 16,257 |
Know-how (1) |  |  | 29,086 |  |  |  | 29,543 |  |  |  | 17,473 |  |  |  | 15,177 |
Total |  | $ | 93,734 |  |  | $ | 98,174 |  |  | $ | 51,061 |  |  | $ | 45,603 |
(1) Know-how includes intellectual property rights covering proprietary information, written formulae, trade secrets or secret processes, inventions and devel opmental products (whether patentable or not), discoveries, improvements, compositions, manufacturing processes, manuals, specifications and technical data.
Estimated Amortization Expense for Identifiable Intangibles Assets | Estimated amortization expense for identifiable intangibles assets for each of the five succeeding fiscal years is as follows:
(In thousands) |  |  |
For year ended 12/31/25 |  | $ | 6,265 |
For year ended 12/31/26 |  |  | 6,053 |
For year ended 12/31/27 |  |  | 6,053 |
For year ended 12/31/28 |  |  | 4,453 |
For year ended 12/31/29 |  |  | 3,422 |

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