Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

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, 2018 and 2017, were as follows:

(In thousands)	Surfactants Segment						Polymer Segment					Specialty Products Segment				Total
	2018			2017			2018			2017		2018		2017		2018			2017
Balance as of January 1
Goodwill	$	22,627		$	22,958		$	5,475		$	5,334	$	483	$	483	$	28,585		$	28,775
Accumulated impairment loss		(3,467	)		(3,467	)		—			—		—		—		(3,467	)		(3,467	)
Goodwill, net		19,160			19,491			5,475			5,334		483		483		25,118			25,308
Goodwill acquired		—			—			—			—		—		—		—			—
Goodwill measurement period adjustment (a)		—			(120	)		—			—		—		—		—			(120	)
Foreign currency translation		(2,106	)		(211	)		(58	)		141		—		—		(2,164	)		(70	)
Balance as of December 31
Goodwill		20,521			22,627			5,417			5,475		483		483		26,421			28,585
Accumulated impairment loss		(3,467	)		(3,467	)		—			—		—		—		(3,467	)		(3,467	)
Goodwill, net	$	17,054		$	19,160		$	5,417		$	5,475	$	483	$	483	$	22,954		$	25,118

(a) See Note 20 for information regarding the goodwill acquired in a business combination.

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, 2018 and 2017.  The year-over-year changes in gross carrying values mainly resulted from the effects of foreign currency translation.

(In thousands)	Gross Carrying Value				Accumulated Amortization
	December 31				December 31
	2018		2017		2018		2017
Other Intangible Assets:
Patents	$	6,947	$	6,947	$	4,492	$	3,893
Non-compete agreements		387	$	453		173	$	113
Trademarks		3,800		4,087		1,929		1,870
Customer lists		10,750		12,150		4,356		4,299
Supply contract		2,113		2,476		1,189		774
Know-how (a)		7,900		8,043		5,514		4,669
Total	$	31,897	$	34,156	$	17,653	$	15,618

(a) 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 12/31/19	$	3,428
For year ended 12/31/20		3,296
For year ended 12/31/21		1,967
For year ended 12/31/22		1,321
For year ended 12/31/23		1,321