Marketable securities (Tables)

3 Months Ended

Mar. 31, 2025

Marketable securities

Schedule of Marketable Securities

	Fair value			Cost or
	measurement	Market		amortized		Unrealized
	level	value		cost		gain (loss), net
		(In thousands)
December 31, 2024
Noncurrent assets - Valhi common stock	1	$	28,015	$	24,347	$	3,668
March 31, 2025
Noncurrent assets - Valhi common stock	1	$	19,463	$	24,347	$	(4,884)