Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2022

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

Summary of Other Comprehensive Income (Loss)

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

	Year Ended December 31, 2022
	Before-Tax		Income		After-Tax
(in thousands)	Amount		Tax		Amount
Foreign currency translation adjustments:
Translation adjustments arising during the year	$	(48,340)	$	—	$	(48,340)
Pension and other postretirement plans:
Actuarial loss	(727,097)		187,018		(540,079)
Amortization of net actuarial gain included in net income	(70,833)		18,219		(52,614)
Amortization of net prior service cost included in net income	2,864		(737)		2,127
	(795,066)		204,500		(590,566)
Cash flow hedges:
Gain for the year	4,765		(1,096)		3,669
Other Comprehensive Loss	$	(838,641)	$	203,404	$	(635,237)

	Year Ended December 31, 2021
	Before-Tax		Income		After-Tax
(in thousands)	Amount		Tax		Amount
Foreign currency translation adjustments:
Translation adjustments arising during the year	$	(16,052)	$	—	$	(16,052)
Pension and other postretirement plans:
Actuarial gain	519,595		(133,915)		385,680
Prior service cost	(2)		1		(1)
Amortization of net actuarial gain included in net income	(5,486)		1,414		(4,072)
Amortization of net prior service cost included in net income	3,170		(817)		2,353
Settlement included in net income	(120)		30		(90)
	517,157		(133,287)		383,870
Cash flow hedge:
Gain for the year	349		(93)		256
Other Comprehensive Income	$	501,454	$	(133,380)	$	368,074

	Year Ended December 31, 2020
	Before-Tax		Income		After-Tax
(in thousands)	Amount		Tax		Amount
Foreign currency translation adjustments:
Translation adjustments arising during the year	$	31,642	$	—	$	31,642
Pension and other postretirement plans:
Actuarial gain	365,164		(98,594)		266,570
Prior service cost	(69)		19		(50)
Amortization of net actuarial loss included in net income	1,219		(329)		890
Amortization of net prior service cost included in net income	2,680		(724)		1,956
	368,994		(99,628)		269,366
Cash flow hedges:
Loss for the year	(1,282)		293		(989)
Other Comprehensive Income	$	399,354	$	(99,335)	$	300,019

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, 2020	$	9,754	$	595,287	$	(1,727)	$	603,314
Other comprehensive income (loss) before reclassifications	(16,052)		385,679		(375)		369,252
Net amount reclassified from accumulated other comprehensive income	—		(1,809)		631		(1,178)
Net other comprehensive income (loss)	(16,052)		383,870		256		368,074
As of December 31, 2021	(6,298)		979,157		(1,471)		971,388
Other comprehensive income (loss) before reclassifications	(48,340)		(540,079)		3,276		(585,143)
Net amount reclassified from accumulated other comprehensive income	—		(50,487)		393		(50,094)
Net other comprehensive income (loss)	(48,340)		(590,566)		3,669		(635,237)
As of December 31, 2022	$	(54,638)	$	388,591	$	2,198	$	336,151

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)	2022		2021		2020
Pension and Other Postretirement Plans:
Amortization of net actuarial (gain) loss	$	(70,833)	$	(5,486)	$	1,219	(1)
Amortization of net prior service cost	2,864		3,170		2,680		(1)
Settlement gains	—		(120)		—		(1)
	(67,969)		(2,436)		3,899		Before tax
	17,482		627		(1,053)		Provision for income taxes
	(50,487)		(1,809)		2,846		Net of tax
Cash Flow Hedges
	393		631		474		Interest expense
	—		—		13		Provision for income taxes
	393		631		487		Net of tax
Total reclassification for the year	$	(50,094)	$	(1,178)	$	3,333	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.