Pension Plan

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Pension Plan

Pension Plan

Net periodic pension cost consists of the following: 

	Three Months Ended March 31,
	2018			2017
Service cost	$	169		$	151
Interest cost on projected benefit obligation	701			693
Expected return on plan assets	(1,354		)	(1,325		)
Net amortization and deferral	672			793
Net periodic pension cost	$	188		$	312

We do not expect to make any pension contributions during 2018.