Other Noncurrent Liabilities (Tables)

9 Months Ended

Sep. 30, 2019

Other Liabilities Disclosure [Abstract]

Summary of Other Noncurrent Liabilities

	December 31,		September 30,
	2018		2019
	(In thousands)
Reserve for uncertain tax positions	$	7,312	$	7,312
OPEB		1,519		1,409
Insurance claims and expenses		621		621
Other		463		438
Total	$	9,915	$	9,780