Pension And Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2020

Defined Benefit Plan [Abstract]

Schedule of Pension and Postretirement Benefit Costs

The following table details pension and postretirement benefit costs included in the accompanying consolidated statements of income. The service cost component of net periodic pension cost (benefit) is recorded in operating expenses in the consolidated statements of income while the remaining components are recorded in “Other income (expense) – net.”

	Three months ended				Nine months ended
	September 30,				September 30,
	2020		2019		2020		2019
Pension cost:
Service cost - benefits earned during the period	$	257	$	260	$	772	$	743
Interest cost on projected benefit obligation	421		463		1,265		1,520
Expected return on assets	(888)		(905)		(2,667)		(2,636)
Amortization of prior service credit	(28)		(28)		(85)		(85)
Actuarial (gain) loss	—		1,888		—		4,019
Net pension (credit) cost	$	(238)	$	1,678	$	(715)	$	3,561
Postretirement cost:
Service cost – benefits earned during the period	$	14	$	19	$	40	$	55
Interest cost on accumulated postretirement benefit obligation	104		185		312		557
Expected return on assets	(44)		(57)		(133)		(169)
Amortization of prior service credit	(583)		(425)		(1,747)		(1,277)
Net postretirement (credit) cost	$	(509)	$	(278)	$	(1,528)	$	(834)
Combined net pension and postretirement (credit) cost	$	(747)	$	1,400	$	(2,243)	$	2,727