COMPONENTS OF QUARTERLY AND YEAR TO DATE NET PERIODIC BENEFIT COSTS (Tables)

6 Months Ended

Jun. 30, 2023

Retirement Benefits [Abstract]

Schedule of Components of 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   June 30,				Six Months Ended   June 30,
	2023		2022		2023		2022
Qualified Pension Plan
Service cost, benefits earned during the period	$	—	$	—	$	—	$	—
Interest cost on projected benefit obligation	397		284		793		566
Expected return on plan assets	(594)		(708)		(1,190)		(1,421)
Amortization of unrecognized transition obligation	—		—		—		—
Amortization of unrecognized prior service cost	—		—		—		—
Amortization of unrecognized net loss	5		—		11		—
Net periodic pension benefit	$	(192)	$	(424)	$	(386)	$	(855)
Supplemental Pension Plan
Service cost, benefits earned during the period	$	—	$	—	$	—	$	—
Interest cost on projected benefit obligation	11		9		23		17
Expected return on plan assets	—		—		—		—
Amortization of unrecognized prior service cost	—		—		—		—
Amortization of unrecognized net loss	2		4		4		9
Net periodic supplemental pension cost	$	13	$	13	$	27	$	26
Postretirement Plan, Medical and Life
Service cost, benefits earned during the period	$	—	$	—	$	—	$	—
Interest cost on projected benefit obligation	1		1		2		2
Expected return on plan assets	—		—		—		—
Amortization of unrecognized prior service cost	—		—		—		—
Amortization of unrecognized net loss	4		7		9		16
Net periodic postretirement, medical and life benefit	$	5	$	8	$	11	$	18