Other noncurrent liabilities (Tables)

12 Months Ended

Dec. 31, 2023

Other noncurrent liabilities

Summary of Other Noncurrent Liabilities

	December 31,
	2022		2023
	(In thousands)
Reserve for uncertain tax positions	$	2,714	$	3,707
OPEB		637		524
Insurance claims and expenses		625		579
Other		303		264
Total	$	4,279	$	5,074