Retirement Plans and Related Post Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2018

SERP

Reconciliation of Beginning and Ending Balances of Projected Benefit Obligation

The reconciliation of the beginning and ending balances of the projected benefit obligation of the plans for the years ended December 31 is as follows:

(In thousands)	2018		2017
Funded Status
Projected Benefit Obligation
Beginning of the Year — January 1	$	25,141	$	21,533
Service Cost	200		186
Interest Cost	899		897
Actuarial (Gain) Loss	(3,922)		2,873
Benefits Paid	(348)		(348)
End of the Year — December 31	$	21,970	$	25,141

Assumptions Used to Calculate the Post Retirement Benefit Obligation

The assumptions used to calculate the projected benefit obligation as of December 31 are as follows:

	2018	2017
Discount Rate	4.20%	3.60%
Future Average Compensation Increases	2.00%	2.00% - 3.00%

Summary of the Components of Net Periodic Cost

The following table summarizes the components of the net periodic cost for the years ended December 31:

(In thousands)	2018		2017		2016
Net Periodic Cost
Service Cost — Benefits Earned During Period	$	200	$	186	$	173
Interest Cost	899		897		901
Amortization of Prior Service Cost	386		387		413
Amortization of Losses	629		369		343
Net Periodic Cost	$	2,114	$	1,839	$	1,830

Assumptions Used to Determine the Net Periodic Cost

The assumptions used to determine the net periodic cost are as follows:

	2018	2017	2016
Discount Rate	3.60%	4.20%	4.45%
Future Average Compensation Increases	2.00% - 3.00%	3.00% - 5.00%	3.00% - 5.00%

SERP Medical

Reconciliation of Beginning and Ending Balances of Projected Benefit Obligation

The reconciliation of the beginning and ending balances of the accumulated postretirement benefit obligation for the years ended December 31, is as follows:

(In thousands)	2018		2017
Funded Status
Accumulated Postretirement Benefit Obligation
Beginning of the Year — January 1	$	1,307	$	1,021
Service Cost	16		7
Interest Cost	46		41
Actuarial (Gain) Loss	(162)		307
Benefits Paid	(71)		(69)
End of the Year — December 31	$	1,136	$	1,307

Assumptions Used to Calculate the Post Retirement Benefit Obligation

The assumptions used to calculate the accumulated post-retirement benefit obligation as of December 31 are as follows:

	2018	2017
Discount Rate	4.20%	3.60%

Summary of the Components of Net Periodic Cost

The following table summarizes the components of the net periodic cost for the years ended December 31 as follows:

(In thousands)	2018		2017		2016
Net Periodic Cost
Service Cost — Benefits Earned During Period	$	16	$	7	$	5
Interest Cost	46		41		40
Amortization of Prior Service Cost	16		16		24
Amortization of Losses	59		31		22
Net Periodic Cost	$	137	$	95	$	91

Assumptions Used to Determine the Net Periodic Cost

The assumptions used to determine the net periodic cost are as follows:

	2018	2017	2016
Discount Rate	3.60%	4.20%	4.45%
Future Average Healthcare Benefit Increases	5.38%	5.50%	5.72%