Pension Plan (Tables)

12 Months Ended

Dec. 31, 2022

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, 2022 and 2021:

	2022			2021
	(000s)
Change in plan assets:
Fair value of plan assets at beginning of year	$	127,360		$	131,685
Actual return (loss) on plan assets		(23,674	)		2,771
Benefits paid		(6,448	)		(6,389	)
Administrative expenses		(611	)		(707	)
Fair value of plan assets at end of year	$	96,627		$	127,360
Change in benefit obligation:
Benefit obligation at beginning of year	$	116,034		$	123,237
Service cost	$	607		$	546
Interest cost	$	2,836		$	2,493
Benefits paid	$	(6,448	)	$	(6,389	)
Actuarial (gain) loss	$	(25,752	)	$	(3,853	)
Benefit obligation at end of year	$	87,277		$	116,034
Amounts recognized in the Consolidated Balance Sheet:
Other non-current assets	$	9,350		$	11,327
Total amounts recognized at end of year	$	9,350		$	11,327

Components of Net Periodic Pension Cost (Benefit)

	2022			2021			2020
	(000s)
Components of net periodic cost (benefit)
Service cost	$	607		$	546		$	615
Interest cost		2,836			2,493			3,357
Expected return on plan assets		(4,335	)		(4,490	)		(5,261	)
Net periodic cost	$	(892	)	$	(1,451	)	$	(1,289	)

Measurement Dates

	2022	2021
Measurement Dates
Benefit obligations	12/31/2022	12/31/2021
Fair value of plan assets	12/31/2022	12/31/2021

Weighted-average Assumptions for Net Periodic Benefit Cost

	2022			2021
Weighted average assumptions as of December 31
Discount rate		4.91	%		2.52	%
Rate of compensation increase		4.00	%		4.00	%

Weighted Average Assumptions

	2022			2021			2020
Weighted-average assumptions for net periodic benefit    cost calculations
Discount rate		2.52	%		2.08	%		2.94	%
Expected long-term rate of return on plan assets		3.50	%		3.50	%		4.50	%
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, 2022 and December 31, 2021, reported using net asset value as a practical expedient, by asset category are as follows:

	2022		2021
Equities:
U.S. Large Cap	$	5,301	$	7,306
U.S. Mid Cap	$	1,451	$	2,014
U.S. Small Cap	$	1,452	$	1,913
International Developed	$	3,867	$	5,062
Emerging Markets	$	2,426	$	3,152
Fixed income:
Core Fixed Income	$	17,074	$	22,904
Long Duration Fixed Income	$	64,277	$	84,277
Cash/Currency:
Cash Equivalents	$	779	$	732
Total market value	$	96,627	$	127,360

Estimated Future Benefit

There will be benefit payments under this plan beyond 2032.

Estimated Future Benefit Payments (000s)
2023	$	6,804
2024		6,831
2025		6,819
2026		6,781
2027		6,732
2028-2032		32,152
Total	$	66,119

Plan Assets

	2022			2021
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 12/31/2022			Permitted Range
Total Equity		15	%	10-30%
Total Fixed Income		84	%	70-90%
Other		1	%	0-10%