Other noncurrent liabilities (Tables)

6 Months Ended

Jun. 30, 2023

Other noncurrent liabilities

Summary of Other Noncurrent Liabilities

	December 31,		June 30,
	2022		2023
	(In thousands)
Reserve for uncertain tax positions	$	2,714	$	2,714
OPEB		637		604
Insurance claims and expenses		625		553
Other		303		305
Total	$	4,279	$	4,176