Other noncurrent liabilities (Tables)

6 Months Ended

Jun. 30, 2022

Other noncurrent liabilities

Summary of Other Noncurrent Liabilities

	December 31,		June 30,
	2021		2022
	(In thousands)
Reserve for uncertain tax positions	$	1,724	$	1,724
OPEB		787		702
Insurance claims and expenses		632		590
Other		347		327
Total	$	3,490	$	3,343