Goodwill and Other Intangible Assets (Tables)

12 Months Ended

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 developmental 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