COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS

COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS

The components of net periodic expense for the Corporation’s pension and other benefit plans for the periods indicated are as follows (in thousands):

	Three Months Ended   March 31,
	2018			2017
Qualified Pension Plan
Service cost, benefits earned during the period	$	—		$	—
Interest cost on projected benefit obligation	385			403
Expected return on plan assets	(826		)	(785		)
Amortization of unrecognized transition obligation	—			—
Amortization of unrecognized prior service cost	—			—
Amortization of unrecognized net loss	43			58
Net periodic pension benefit	$	(398	)	$	(324	)
Supplemental Pension Plan
Service cost, benefits earned during the period	$	—		$	—
Interest cost on projected benefit obligation	12			12
Expected return on plan assets	—			—
Amortization of unrecognized prior service cost	—			—
Amortization of unrecognized net loss	2			1
Net periodic supplemental pension cost	$	14		$	13
Postretirement Plan, Medical and Life
Service cost, benefits earned during the period	$	—		$	—
Interest cost on projected benefit obligation	3			4
Expected return on plan assets	—			—
Amortization of unrecognized prior service cost	(55		)	(55		)
Amortization of unrecognized net loss	28			29
Net periodic postretirement, medical and life benefit	$	(24	)	$	(22	)