Marketable securities (Tables)

3 Months Ended

Mar. 31, 2024

Marketable securities

Schedule of Marketable Securities

	Fair value			Cost or
	measurement	Market		amortized		Unrealized
	level	value		cost		loss, net
		(In thousands)
December 31, 2023
Current assets - Fixed income securities	2	$	53,149	$	53,181		(32)
Noncurrent assets - Valhi common stock	1	$	18,194	$	24,347	$	(6,153)
March 31, 2024
Current assets - Fixed income securities	2	$	29,662	$	29,676	$	(14)
Noncurrent assets - Valhi common stock	1	$	20,577	$	24,347	$	(3,770)