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Other Noncurrent Liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Other Liabilities Disclosure [Abstract]

Summary of Other Noncurrent Liabilities

	December 31,
	2019				2020
	(In thousands)
Reserve for uncertain tax positions	$	4,053			$	1,717
OPEB		1,129				985
Insurance claims and expenses		665				653
Other		413				425
Total	$	6,260			$	3,780

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Tabular disclosure of other noncurrent liabilities.

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