Pension Plan (Tables)

12 Months Ended

Dec. 31, 2023

Retirement Benefits [Abstract]

Reconciliation of Defined Benefit Pension Plan

The following table shows the reconciliation of the defined benefit pension plan as of December 31, 2023 and 2022:

	2023			2022
	(000s)
Change in plan assets:
Fair value of plan assets at beginning of year	$	96,627		$	127,360
Actual return (loss) on plan assets		8,779			(23,674	)
Benefits paid		(6,417	)		(6,448	)
Administrative expenses		(574	)		(611	)
Fair value of plan assets at end of year	$	98,415		$	96,627
Change in benefit obligation:
Benefit obligation at beginning of year	$	87,277		$	116,034
Service cost		803			607
Interest cost		4,118			2,836
Benefits paid		(6,417	)		(6,448	)
Actuarial (gain) loss		(156	)		(25,752	)
Benefit obligation at end of year	$	85,625		$	87,277
Amounts recognized in the Consolidated Balance Sheet:
Other noncurrent assets	$	12,790		$	9,350
Total amounts recognized at end of year	$	12,790		$	9,350

Components of Net Periodic Pension Cost (Benefit)

	2023			2022			2021
	(000s)
Components of net periodic cost (benefit)
Service cost	$	803		$	607		$	546
Interest cost		4,118			2,836			2,493
Expected return on plan assets		(4,195	)		(4,335	)		(4,490	)
Net periodic cost	$	726		$	(892	)	$	(1,451	)

Measurement Dates

	2023	2022
Measurement Dates
Benefit obligations	12/31/2023	12/31/2022
Fair value of plan assets	12/31/2023	12/31/2022

Weighted-average Assumptions for Net Periodic Benefit Cost

	2023			2022
Weighted average assumptions as of December 31
Discount rate		4.71	%		4.91	%
Rate of compensation increase		4.00	%		4.00	%

Weighted Average Assumptions

	2023			2022			2021
Weighted-average assumptions for net periodic benefit    cost calculations
Discount rate		4.91	%		2.52	%		2.08	%
Expected long-term rate of return on plan assets		4.50	%		3.50	%		3.50	%
Rate of compensation increase		4.00	%		4.00	%		4.00	%

Market Values of Our Pension Plan Assets

The market values of our pension plan assets at December 31, 2023 and 2022, reported using net asset value as a practical expedient, by asset category are as follows (in thousands):

	2023		2022
Equities:
U.S. Large Cap	$	5,423	$	5,301
U.S. Mid Cap		1,480		1,451
U.S. Small Cap		1,491		1,452
International Developed		3,943		3,867
Emerging Markets		2,540		2,426
Fixed income:
Core Fixed Income		17,492		17,074
Long Duration Fixed Income		65,289		64,277
Cash/Currency:
Cash Equivalents		757		779
Total market value	$	98,415	$	96,627

Estimated Future Benefit

There will be benefit payments under this plan beyond 2033.

Estimated Future Benefit Payments (000s)
2024	$	6,752
2025		6,745
2026		6,714
2027		6,671
2028		6,601
2029-2033		31,330
Total	$	64,813

Plan Assets

	2023			2022
Plan Assets
Asset Category
Equity securities		15	%		15	%
Fixed income securities		84	%		84	%
Other		1	%		1	%
Total		100	%		100	%

Asset Allocation Policy and Ranges Established in accordance with Overall Risk and Return Objectives of Portfolio

The following asset allocation policy and ranges have been established in accordance with the overall risk and return objectives of the portfolio:

	As of 12/31/2023			Permitted Range
Total Equity		15	%	10-30%
Total Fixed Income		84	%	70-90%
Other		1	%	0-10%