Other noncurrent liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Other noncurrent liabilities

Summary of Other Noncurrent Liabilities

	December 31,		March 31,
	2022		2023
	(In thousands)
Reserve for uncertain tax positions	$	2,714	$	2,714
OPEB		637		607
Insurance claims and expenses		625		535
Other		303		349
Total	$	4,279	$	4,205