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Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2024

Retirement Benefits [Abstract]

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets

The majority of the Company's defined benefit pension plans have projected benefit obligations in excess of the fair value of plan assets. For these plans, the projected benefit obligations and the fair value of plan assets were as follows as of December 31, 2024 and 2023:

December 31,		2024				2023
		(In thousands)
Projected benefit obligations		$	278,389			$	311,336
Fair value of plans' assets			255,389				285,243

Schedule Of Fair Value Of Plan Assets In Excess Of Benefit Obligations Table Text Block

Certain of the Company's U.K. Plans have fair values of plan assets that exceed the projected benefit obligations. For these plans, and certain Other International Plans, the projected benefit obligations and the fair value of plan assets were as follows as of December 31, 2024 and 2023:

December 31,		2024				2023
		(In thousands)
Projected benefit obligations		$	161,567			$	146,960
Fair value of plans' assets			170,747				157,914

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets

A reconciliation of the beginning and ending balances of the projected benefit obligations and the fair value of plans' assets for the Company's defined benefit pension plans as of the plans' most recent measurement dates is as follows:

Year Ended December 31,		2024				2023
		(In thousands)
Projected Benefit Obligations:
Beginning of measurement period		$	458,296			$	485,573
Service cost			1,531				1,423
Interest cost			23,163				23,915
Employee contributions			22				23
Actuarial gain			(3,504	)			(11,023	)
Plan settlements			(296	)			—
Plan curtailments			48				—
Benefits paid			(49,068	)			(51,232	)
Foreign currency effects			9,764				9,617
End of measurement period			439,956				458,296
Fair Value of Plans' Assets:
Beginning of measurement period			443,157				477,728
Actual return on plans' assets			18,268				2,712
Employer contributions			3,561				3,265
Employee contributions			22				23
Plan settlements			(296	)			—
Benefits paid			(49,068	)			(51,232	)
Foreign currency effects			10,492				10,661
End of measurement period			426,136				443,157
Unfunded Status		$	(13,820	)		$	(15,139	)

Schedule of Net Funded Status

The funded status of the Company's defined benefit pension plans recognized in the Consolidated Balance Sheets at December 31 consisted of:

December 31,		2024				2023
		(In thousands)
U.S. Qualified Plan		$	18,991			$	22,317
Other international plans			2,092				1,688
Subtotal, included in "Accrued pension liabilities"			21,083				24,006
U.K. prepaid pension asset included in "Other noncurrent assets"			(9,176	)			(10,876	)
Other international plans			(4	)			(78	)
Subtotal, included in "Other noncurrent assets"			(9,180	)			(10,954	)
Unfunded status of nonqualified defined benefit deferred pension plans included in "Other accrued liabilities"			201				230
Unfunded status of nonqualified defined benefit pension plans included in "Other noncurrent liabilities"			1,716				1,858
Total underfunded status		$	13,820			$	15,139
Accumulated other comprehensive loss, before income taxes		$	(257,116	)		$	(261,102	)

Schedule of Net Unrecognized Actuarial Gain (loss)

The following tables set forth the changes in accumulated other comprehensive loss during 2024 and 2023 for the Company's defined benefit retirement plans on a combined basis:

		Defined Benefit Pension Plans
		(In thousands)
Net unrecognized actuarial loss, December 31, 2022		$	(256,695	)
Amortization of net loss			12,019
Net loss arising during the year			(13,432	)
Currency translation			(2,993	)
Net unrecognized actuarial loss, December 31, 2023			(261,102	)
Amortization of net loss			12,580
Net loss arising during the year			(4,109	)
Currency translation			(4,484	)
Net unrecognized actuarial loss, December 31, 2024		$	(257,116	)

Schedule of Defined Benefit Plans Disclosures

Net periodic benefit (credit) cost related to all of the Company's defined benefit pension plans recognized in the Company's Consolidated Statements of Operations for the years ended December 31, 2024, 2023, and 2022 included the following components:

Year Ended December 31,		2024				2023				2022
		(In thousands)
Service cost		$	1,531			$	1,423			$	1,219
Interest cost			23,163				23,915				12,903
Expected return on assets			(25,882	)			(27,168	)			(24,600	)
Amortization of actuarial loss			12,580				12,020				10,198
Curtailment loss recognized			48				—				—
Net periodic benefit cost (credit)		$	11,440			$	10,190			$	(280	)

Schedule of Expected Benefit Payments

Over the next ten years, the following benefit payments are expected to be required to be made from the Company's U.S. and U.K. defined benefit pension plans:

Year Ending December 31,		Expected Benefit Payments
		(In thousands)
2025		$	35,188
2026			34,690
2027			34,412
2028			34,586
2029			33,951
2030-2034			157,645

Schedule of Assumptions Used

Certain assumptions used in computing the benefit obligations and net periodic benefit cost for the U.S. and U.K. defined benefit pension plans were as follows:

U.S. Qualified Plan:		2024				2023
Discount rate used to compute benefit obligations			5.57	%			4.94	%
Discount rate used to compute periodic benefit cost			4.94	%			5.13	%
Expected long-term rates of return on plans' assets			5.90	%			6.20	%

U.K. Defined Benefit Plans:		2024				2023
Discount rate used to compute benefit obligations			5.30	%			5.78	%
Discount rate used to compute periodic benefit cost			5.78	%			4.93	%
Expected long-term rates of return on plans' assets			6.20	%			5.40	%

Schedule of Allocation of Plan Assets

Asset allocations at the respective measurement dates, by asset category, for the Company's U.S. and U.K. qualified defined benefit pension plans were as follows:

		U.S. Qualified Plan								U.K. Plans
December 31,		2024				2023				2024				2023
Equity securities			14.7	%			14.6	%			—				—
Fixed income securities			77.9	%			75.8	%			73.6	%			74.1	%
Alternative strategies			4.2	%			4.6	%			25.9	%			24.4	%
Cash, cash equivalents and short-term investment funds			3.2	%			5.0	%			0.4	%			1.5	%
Total asset allocation			100.0	%			100.0	%			100.0	%			100.0	%

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