Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2023

The following tables provide the components of net periodic benefit costs for the three and nine-month periods ended September 30, 2023 and 2022:


	Employees'		Select Executive		Postretirement
	Pension		Retirement		Benefit
	Plan		Plan		Plans
Net Periodic Benefit Cost
For the Three Months Ended September 30, 2023:
Service Cost 1	$	398	$	143	$	14
Interest Cost 2	524		85		82
Expected Return on Plan Assets 2	(854)		—		—
Amortization of Prior Service Cost 2	16		9		26
Amortization of Net Loss (Gain) 2	30		18		(88)
Net Periodic Cost	$	114	$	255	$	34

Plan Contributions During the Period	$	—	$	99	$	28

For the Three Months Ended September 30, 2022:
Service Cost 1	$	469	$	208	$	23
Interest Cost 2	360		57		61
Expected Return on Plan Assets 2	(1,078)		—		—
Amortization of Prior Service Cost 2	19		11		27
Amortization of Net Loss (Gain) 2	550		53		(39)
Net Periodic Cost	$	320	$	329	$	72

Plan Contributions During the Period	$	—	$	116	$	43

Net Periodic Benefit Cost
For the Nine Months Ended September 30, 2023:
Service Cost 1	$	1,195	$	428	$	42
Interest Cost 2	1,573		244		249
Expected Return on Plan Assets 2	(2,562)		—		—
Amortization of Prior Service Cost 2	47		29		78
Amortization of Net Loss (Gain) 2	89		55		(265)
Net Periodic Cost	$	342	$	756	$	104

Plan Contributions During the Period	$	—	$	325	$	75

Estimated Future Contributions in the Current Fiscal Year	$	—	$	108	$	25

For the Nine Months Ended September 30, 2022:
Service Cost 1	$	1,408	$	626	$	68
Interest Cost 2	1,079		169		185
Expected Return on Plan Assets 2	(3,235)		—		—
Amortization of Prior Service Cost 2	58		33		80
Amortization of Net Loss (Gain) 2	550		159		(117)
Net Periodic (Benefit) Cost	$	(140)	$	987	$	216

Plan Contributions During the Period	$	—	$	347	$	131

Footnotes:

1. Included in Salaries and Employee Benefits on the Consolidated Statements of Income

2. Included in Other Operating Expense on the Consolidated Statements of Income