Income taxes (Tables)

3 Months Ended

Mar. 31, 2024

Income taxes

Schedule of Income Taxes

	Three months ended
	March 31,
	2023		2024
	(In thousands)
Expected tax expense (benefit), at U.S. federal statutory   income tax rate of 21%	$	(949)	$	1,744
Rate differences on equity in earnings (losses) of Kronos,   net of dividends		2,305		(782)
U.S. state income taxes and other, net		65		26
Income tax expense	$	1,421	$	988
Comprehensive provision (benefit) for income taxes allocable to:
Net income (loss)	$	1,421	$	988
Additional paid-in capital		(92)		—
Other comprehensive income (loss):
Currency translation		(443)		(1,320)
Pension plans		104		101
Other		(34)		(8)
Total	$	956	$	(239)