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Investments in Associated Companies - Summarized Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity in net income of associated companies	$ 10,971	$ 15,333	$ 1,965
Houghton Korea
Equity in net income of associated companies	6,795	11,442	2,644
Nippon Japan
Equity in net income of associated companies	925	1,492	323
Kelko Panama
Equity in net income of associated companies	321	309	425
Primex
Equity in net income of associated companies	$ 2,930	$ 2,090	$ (1,427)

X

- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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