Investment in Associated Companies (Tables)

12 Months Ended

Dec. 31, 2023

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Equity Method Investments

The following table is a summary of equity income in associated companies by investment for the years ending December 31, 2023, 2022 and 2021:

	2023		2022		2021
Houghton Korea	$	11,442	$	2,644	$	3,808
Nippon Japan	1,492		323		461
Kelko Panama	309		425		154
Grindaix (1)	—		—		(37)
Primex	2,090		(1,427)		4,993
Total equity in net income of associated companies	$	15,333	$	1,965	$	9,379

(1)In February 2021, the Company acquired a 38% ownership interest in Grindaix. From that date through September 2021 when the Company purchased the remaining interest of Grindaix, the Company accounted for its 38% interest under the equity method of accounting and recorded equity in net income of associated companies. See Note 2 for additional information.