Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2025

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Summary of Other Comprehensive Income (Loss)

The other comprehensive income (loss) consists of the following components:

	Year Ended December 31, 2025
	Before-Tax		Income		After-Tax
(in thousands)	Amount		Tax		Amount
Foreign currency translation adjustments:
Translation adjustments arising during the year	$	45,136	$	—	$	45,136
Adjustment for sale of a business with foreign operations	646		—		646
	45,782		—		45,782
Pension and other postretirement plans:
Actuarial gain	283,882		(73,845)		210,037
Prior service cost	(663)		173		(490)
Amortization of net actuarial gain included in net income	(1,207)		314		(893)
Amortization of net prior service credit included in net income	(2,080)		541		(1,539)
	279,932		(72,817)		207,115
Cash flow hedges:
Loss for the year	(831)		217		(614)
Other Comprehensive Income	$	324,883	$	(72,600)	$	252,283

	Year Ended December 31, 2024
	Before-Tax		Income		After-Tax
(in thousands)	Amount		Tax		Amount
Foreign currency translation adjustments:
Translation adjustments arising during the year	$	(24,568)	$	—	$	(24,568)
Adjustment for sale of a business with foreign operations	(765)		—		(765)
	(25,333)		—		(25,333)
Pension and other postretirement plans:
Actuarial gain	351,322		(89,943)		261,379
Prior service credit	734		(188)		546
Amortization of net actuarial gain included in net income	(39,742)		10,174		(29,568)
Amortization of net prior service credit included in net income	(1,951)		500		(1,451)
Settlement included in net income	(653,427)		167,285		(486,142)
	(343,064)		87,828		(255,236)
Cash flow hedges:
Gain for the year	1,392		(363)		1,029
Other Comprehensive Loss	$	(367,005)	$	87,465	$	(279,540)

	Year Ended December 31, 2023
	Before-Tax		Income		After-Tax
(in thousands)	Amount		Tax		Amount
Foreign currency translation adjustments:
Translation adjustments arising during the year	$	21,927	$	—	$	21,927
Pension and other postretirement plans:
Actuarial gain	380,593		(97,436)		283,157
Prior service credit	11,263		(2,883)		8,380
Amortization of net actuarial gain included in net income	(42,146)		10,790		(31,356)
Amortization of net prior service cost included in net income	1,641		(420)		1,221
Settlement included in net income	(1,087)		279		(808)
	350,264		(89,670)		260,594
Cash flow hedges:
Loss for the year	(5,630)		1,295		(4,335)
Other Comprehensive Income	$	366,561	$	(88,375)	$	278,186

Summary of Changes in Accumulated Other Comprehensive Income (Loss)

The accumulated balances related to each component of other comprehensive income (loss) are as follows:

(in thousands, net of taxes)	Cumulative Foreign Currency Translation Adjustment		Unrealized Gain on Pensions and Other Postretirement Plans		Cash Flow Hedges		Accumulated Other Comprehensive Income
As of December 31, 2023	$	(32,711)	$	649,185	$	(2,137)	$	614,337
Other comprehensive (loss) income before reclassifications	(24,568)		261,925		1,393		238,750
Net amount reclassified from accumulated other comprehensive income	(765)		(517,161)		(364)		(518,290)
Net other comprehensive (loss) income	(25,333)		(255,236)		1,029		(279,540)
As of December 31, 2024	(58,044)		393,949		(1,108)		334,797
Other comprehensive income (loss) before reclassifications	45,136		209,547		(912)		253,771
Net amount reclassified from accumulated other comprehensive income	646		(2,432)		298		(1,488)
Net other comprehensive income (loss)	45,782		207,115		(614)		252,283
As of December 31, 2025	$	(12,262)	$	601,064	$	(1,722)	$	587,080

Summary of Amounts and Line Items of Reclassifications out of Accumulated Other Comprehensive Income (Loss)

The amounts and line items of reclassifications out of accumulated other comprehensive income (loss) are as follows:

	Year Ended December 31						Affected Line Item in the Consolidated Statements of Operations
(in thousands)	2025		2024		2023
Foreign Currency Translation Adjustments:
Adjustment for sale of businesses with foreign operations	$	646	$	(765)	$	—	Other (expense) income, net
Pension and Other Postretirement Plans:
Amortization of net actuarial gain	(1,207)		(39,742)		(42,146)		(1)
Amortization of net prior service (credit) cost	(2,080)		(1,951)		1,641		(1)
Settlement gains	—		(653,427)		(1,087)		(1)
	(3,287)		(695,120)		(41,592)		Before tax
	855		177,959		10,649		Provision for income taxes
	(2,432)		(517,161)		(30,943)		Net of tax
Cash Flow Hedges	298		(364)		(5,363)		Interest expense
Total reclassification for the year	$	(1,488)	$	(518,290)	$	(36,306)	Net of tax

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(1) These accumulated other comprehensive income components are included in the computation of net periodic pension and postretirement plan cost (see Note 15) and are included in non-operating pension and postretirement benefit income in the Company’s Consolidated Statements of Operations.