Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2020

Retirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures

The net periodic pension cost for the Corporation’s Defined Benefit Pension Plan ("Pension Plan") consisted of the following components:

	Three months ended June 30				Six months ended June 30
	2020		2019		2020		2019
	(in thousands)
Interest cost	$	681	$	815	$	1,362	$	1,630
Expected return on plan assets	(982)		(689)		(1,964)		(1,378)
Net amortization and deferral	465		495		930		990
Net periodic pension cost	$	164	$	621	$	328	$	1,242

The components of the net benefit for the Corporation’s Postretirement Benefits Plan ("Postretirement Plan") consisted of the following components:

	Three months ended June 30				Six months ended June 30
	2020		2019		2020		2019
	(in thousands)
Interest cost	$	11	$	15	$	22	$	30
Net accretion and deferral	(137)		(139)		(274)		(278)
Net periodic benefit	$	(126)	$	(124)	$	(252)	$	(248)