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Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2021

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, 2021 and 2020:

December 31,		2021				2020
		(In thousands)
Projected benefit obligations		$	448,487			$	494,273
Fair value of plans' assets			427,670				437,234

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, the projected benefit obligations and the fair value of plan assets were as follows as of December 31, 2021 and 2020:

December 31,		2021				2020
		(In thousands)
Projected benefit obligations		$	281,828			$	267,200
Fair value of plans' assets			312,119				303,957

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,		2021				2020
		(In thousands)
Projected Benefit Obligations:
Beginning of measurement period		$	761,473			$	748,258
Service cost			1,208				1,295
Interest cost			11,321				16,643
Employee contributions			36				35
Actuarial (gain) loss			(10,034	)			49,938
Plan settlements			(249	)			(1,450	)
Plan amendments			(1,663	)			—
Benefits paid			(48,465	)			(55,150	)
Foreign currency effects			16,688				1,904
End of measurement period			730,315				761,473
Fair Value of Plans' Assets:
Beginning of measurement period			741,191				714,017
Actual return on plans' assets			18,490				71,446
Employer contributions			9,892				10,446
Employee contributions			36				35
Plan settlements			(249	)			(1,450	)
Benefits paid			(48,465	)			(55,150	)
Foreign currency effects			18,894				1,847
End of measurement period			739,789				741,191
Overfunded/(Unfunded) Status		$	9,474			$	(20,282	)

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,		2021				2020
		(In thousands)
U.S. Qualified Plan		$	15,181			$	51,645
Other international plans			2,710				2,241
Subtotal, included in "Accrued pension liabilities"			17,891				53,886
U.K. prepaid pension asset included in "Other noncurrent assets"			(30,291	)			(36,757	)
Unfunded status of nonqualified defined benefit deferred pension plans included in "Other accrued liabilities"			293				316
Unfunded status of nonqualified defined benefit pension plans included in "Other noncurrent liabilities"			2,633				2,837
Total (overfunded)/underfunded status		$	(9,474	)		$	20,282
Accumulated other comprehensive loss, before income taxes		$	(251,629	)		$	(264,244	)

Schedule of Net Unrecognized Actuarial Gain (loss)

The following tables set forth the changes in accumulated other comprehensive loss during 2021 and 2020 for the Company's defined benefit retirement plans and post-retirement medical benefits plan on a combined basis:

		Defined Benefit Pension Plans				Post-Retirement Medical Benefits Plan
		(In thousands)
Net unrecognized actuarial (loss) gain, December 31, 2019		$	(268,427	)		$	152
Amortization of net loss (gain)			10,804				(152	)
Net loss arising during the year			(6,510	)			—
Currency translation			(111	)			—
Net unrecognized actuarial loss, December 31, 2020			(264,244	)			—
Amortization of net loss			10,455				—
Net gain arising during the year			4,939				—
Currency translation			(2,779	)			—
Net unrecognized actuarial loss, December 31, 2021		$	(251,629	)		$	—

Schedule of Expected Benefit Payments

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, 2021, 2020, and 2019 included the following components:

Year Ended December 31,		2021				2020				2019
		(In thousands)
Service cost		$	1,208			$	1,295			$	1,278
Interest cost			11,321				16,643				22,376
Expected return on assets			(25,248	)			(28,016	)			(29,654	)
Amortization of actuarial loss			10,455				10,804				10,837
Net periodic benefit (credit) cost		$	(2,264	)		$	726			$	4,837

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)
2022		$	40,980
2023			40,973
2024			40,855
2025			40,792
2026			40,610
2027-2031			197,809

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:		2021				2020
Discount rate used to compute benefit obligations			2.76	%			2.38	%
Discount rate used to compute periodic benefit cost			2.38	%			3.15	%
Expected long-term rates of return on plans' assets			4.70	%			4.70	%

U.K. Defined Benefit Plans:		2021				2020
Discount rate used to compute benefit obligations			1.82	%			1.60	%
Discount rate used to compute periodic benefit cost			1.60	%			1.93	%
Expected long-term rates of return on plans' assets			2.10	%			2.54	%

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,		2021				2020				2021				2020
Equity securities			16.9	%			23.4	%			—				17.9	%
Fixed income securities			65.5	%			67.2	%			66.2	%			68.3	%
Alternative strategies			5.7	%			6.2	%			23.1	%			13.0	%
Cash, cash equivalents and short-term investment funds			11.9	%			3.2	%			10.7	%			0.8	%
Total asset allocation			100.0	%			100.0	%			100.0	%			100.0	%

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