Marketable securities (Tables)

6 Months Ended

Jun. 30, 2023

Marketable securities

Schedule of Marketable Securities

	Fair value			Cost or
	measurement	Market		amortized		Unrealized
	level	value		cost		gain (loss), net
		(In thousands)
December 31, 2022
Current assets
Fixed income securities	2	$	70,164	$	70,226		(62)
Noncurrent assets
Valhi common stock	1	$	26,350	$	24,347	$	2,003
June 30, 2023
Current assets
Fixed income securities	2	$	95,716	$	96,032	$	(316)
Noncurrent assets
Valhi common stock	1	$	15,391	$	24,347	$	(8,956)