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Retirement Plans And Postretirement Benefits (Tables)

12 Months Ended

Dec. 31, 2024

Retirement Benefits, Description [Abstract]

Components Of Consolidated Net Pension Costs Retirement Plans

The components of our consolidated net pension costs are set forth in the following table:

			Year Ended December 31,
			2024												2023												2022
			U.S.						Foreign						U.S.						Foreign						U.S.						Foreign
			(Dollars in thousands)
Service cost			$	960					$	942					$	1,483					$	1,053					$	1,390					$	1,220
Interest cost			4,409						617						4,722						870						3,242						227
Expected return on assets			(4,729)						(1,358)						(4,353)						(1,145)						(3,960)						(640)
Mark-to-market (gain) loss			(1,370)						2,423						(2,513)						4,395						(181)						(7,801)
Net periodic benefit (credit) cost			$	(730)					$	2,624					$	(661)					$	5,173					$	491					$	(6,994)

Reconciliation Of Pension Plans' Benefit Obligations, Fair Value Of Assets Retirement Plans

The reconciliation of the beginning and ending balances of our pension plans’ benefit obligations, fair value of assets, and funded status at December 31, 2024 and 2023 are shown below.

			December 31, 2024												December 31, 2023
			U.S.						Foreign						U.S.						Foreign
			(Dollars in thousands)
Changes in Benefit Obligation:
Net benefit obligation at beginning of period			$	97,322					$	37,481					$	99,993					$	31,065
Service cost			960						942						1,483						1,053
Interest cost			4,409						617						4,722						870
Participant contributions			—						435						—						501
Plan settlements			—						(3,267)						—						(1,609)
Foreign currency exchange changes			—						(2,748)						—						2,983
Actuarial (gain) loss			(3,550)						1,676						1,516						3,694
Benefits paid			(9,686)						(1,091)						(10,392)						(1,076)
Net benefit obligation at end of period			$	89,455					$	34,045					$	97,322					$	37,481
Changes in Plan Assets:
Fair value of plan assets at beginning of period			$	78,396					$	29,981					$	80,006					$	27,708
Actual return on plan assets			2,549						611						8,382						645
Foreign currency exchange rate changes			—						(2,172)						—						2,609
Plan settlements			—						(3,267)						—						(1,609)
Employer contributions			4,385						760						400						1,203
Participant contributions			—						435						—						501
Benefits paid			(9,377)						(1,006)						(10,392)						(1,076)
Fair value of plan assets at end of period			$	75,953					$	25,342					$	78,396					$	29,981
Funded status (underfunded):			$	(13,502)					$	(8,703)					$	(18,926)					$	(7,500)
Amounts recognized in the statement   of financial position:
Other accrued liabilities			$	(286)					$	—					$	(324)					$	(34)
Other long-term obligations			(13,216)						(8,703)						(18,602)						(7,466)
Net amount recognized			$	(13,502)					$	(8,703)					$	(18,926)					$	(7,500)

Assumptions Used To Determine Net Pension Costs And Projected Benefit Obligations

Assumptions used to determine net pension costs and projected benefit obligations are:

Pension Benefit Obligations Key Assumptions			December 31,
			2024						2023
Weighted average assumptions to determine benefit obligations:
Discount rate			4.29		%				3.93		%
Rate of compensation increase			1.69		%				1.70		%

Pension Cost Key Assumptions
Weighted average assumptions to determine net cost:
Discount rate			3.93		%				4.43		%
Expected return on plan assets			5.88		%				5.30		%
Rate of compensation increase			1.70		%				1.71		%

Retirement Plan Weighted Average Asset Allocations

The following table presents our retirement plan weighted average asset allocations at December 31, 2024, by asset category:

			Percentage of Plan Assets  December 31, 2024
			U.S.						Foreign
Equity securities and return seeking assets			20		%				—		%
Fixed income, debt securities, or cash			80		%				100		%
Total			100		%				100		%

Pension Plans With An Accumulated Benefit Obligation In Excess Of Plan Assets

Information for our pension plans with an accumulated benefit obligation in excess of plan assets at December 31, 2024 and 2023 follows:

			2024												2023
			U.S.						Foreign						U.S.						Foreign
			(Dollars in thousands)
Accumulated benefit obligation			$	89,455					$	32,311					$	97,322					$	35,772
Fair value of plan assets			75,953						25,342						78,396						29,981

Pension Plans With Projected Benefit Obligation In Excess Of Plan Assets

Information for our pension plans with a projected benefit obligation in excess of plan assets at December 31, 2024 and 2023 follows:

			2024												2023
			U.S.						Foreign						U.S.						Foreign
			(Dollars in thousands)
Projected benefit obligation			$	89,455					$	34,045					$	97,322					$	37,481
Fair value of plan assets			75,953						25,342						78,396						29,981

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets

The following table presents the changes for those financial instruments classified within Level 3 of the valuation hierarchy for international plan pension assets for the years ended December 31, 2024 and 2023 (dollars in thousands):

			Fixed Insurance Contracts
Balance at December 31, 2022			$	26,685
Gain / contributions / currency impact			2,489
Distributions			(154)
Balance at December 31, 2023			29,020
Gain / contributions / currency impact			(4,241)
Distributions			(137)
Balance at December 31, 2024			$	24,642

Schedule of Allocation of Plan Assets

The fair value of other plan assets by category is summarized below (dollars in thousands):

			December 31, 2024
			Level 1						Level 2						Level 3						Total
U.S. Plan Assets
Cash and cash equivalents			$	696					$	—					$	—					$	696
International Plan Assets
Foreign government bonds			—						700						—						700
Fixed insurance contracts			—						—						24,642						24,642
Total international plan assets			$	—					$	700					$	24,642					$	25,342
U.S. Plan - Investments measured at net asset value																					$	75,257
Total			$	696					$	700					$	24,642					$	101,295
			December 31, 2023
			Level 1						Level 2						Level 3						Total
U.S. Plan Assets
Cash and cash equivalents			$	710					$	—					$	—					$	710
International Plan Assets
Foreign government bonds			$	—					$	961					$	—					$	961
Fixed insurance contracts			—						—						29,020						29,020
Total international plan assets			$	—					$	961					$	29,020					$	29,981
U.S. Plan - Investments measured at net asset value																					$	77,686
Total			$	710					$	961					$	29,020					$	108,377

Schedule of Expected Benefit Payments

Following is our projected future pension plan cash flow by year:

			U.S.						Foreign
			(Dollars in thousands)
Expected contributions in 2025:
Expected employer contributions			$	1,811					$	542
Expected employee contributions			—						—
Estimated future benefit payments reflecting expected future service for the years ending December 31:
2025			$	8,986					$	1,231
2026			8,906						1,827
2027			8,684						1,472
2028			8,476						2,048
2029			8,198						2,468
Next five years			36,215						9,376

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