Employee Benefits Plans

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Employee Benefit Plans

(10)Employee Benefit Plans

Components of Net Periodic Expense

The components of net periodic expense were as follows (in thousands):

	Defined Benefit Pension Plan						Supplemental Non-qualified Defined Benefit Plans					Non-pension Defined Benefit Postretirement Healthcare Plan
Three Months Ended March 31,	2023			2022			2023		2022			2023			2022
Service cost	$	614		$	982		$	914	$	(392	)	$	381		$	492
Interest cost		4,381			2,705			369		208			594			321
Expected return on plan assets		(4,672	)		(4,631	)		-		-			(56	)		(31	)
Net amortization of prior service costs		(17	)		(17	)		-		-			10			(72	)
Recognized net actuarial loss (gain)		498			1,523			8		69			(3	)		16
Net periodic expense (benefit)	$	804		$	562		$	1,291	$	(115	)	$	926		$	726

Plan Contributions

Contributions to the Defined Benefit Pension Plan are cash contributions made directly to the Pension Plan Trust account. Contributions to the Postretirement Healthcare and Supplemental Plans are made in the form of benefit payments. Contributions made in the first three months of 2023 and anticipated contributions for 2023 and 2024 are as follows (in thousands):

	Contributions Made		Additional Contributions		Contributions
	Three Months Ended March 31, 2023		Anticipated for 2023		Anticipated for 2024
Defined Benefit Pension Plan	$	-	$	-	$	-
Non-pension Defined Benefit Postretirement Healthcare Plan	$	1,230	$	3,690	$	4,556
Supplemental Non-qualified Defined Benefit and Defined Contribution Plans	$	558	$	1,673	$	2,410