Pension Plans (Tables)

6 Months Ended

Jun. 30, 2021

Pension Plan [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Pension and Postretirement Benefit (Income) Expense

Net periodic pension expense (benefit) reflected in other gains and (losses), net in the accompanying condensed consolidated statements of operations included the following components for the respective periods (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2021		2020		2021		2020
Interest cost	$	478	$	675	$	950	$	1,351
Expected return on plan assets		(1,028)		(1,054)		(2,047)		(2,109)
Amortization of net actuarial loss		295		281		584		563
Net settlement loss		566		—		566		—
Total net periodic pension expense (benefit)	$	311	$	(98)	$	53	$	(195)