Pension Plan

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Pension Plan

Pension Plan

Net periodic pension cost consists of the following: 

	Three Months Ended March 31,
	2021		2020
Service cost	$	248	$	179
Interest cost on projected benefit obligation	451		639
Expected return on plan assets	(1,289)		(1,255)
Net amortization and deferral	832		705
Net periodic pension cost	$	242	$	268

We do not expect to make any pension contributions during 2021. Non-service cost of $0.1 million for the three months ended March 31, 2020 is included in other expense in the consolidated condensed statements of comprehensive income (loss). Non-service pension cost was immaterial for the three months ended March 31, 2021.