Enviri (NVRI) 10-Q 1 Nov 22 2022 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-03970
Entity Registrant Name	HARSCO CORP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	23-1483991
Entity Address, Address Line One	350 Poplar Church Road,
Entity Address, City or Town	Camp Hill,
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17011
City Area Code	717
Local Phone Number	763-7064
Title of 12(b) Security	Common stock, par value $1.25 per share
Trading Symbol	HSC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		79,474,631
Entity Central Index Key	0000045876
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 81,740	$ 82,908
Restricted cash	3,297	4,220
Trade accounts receivable, net	269,890	377,881
Other receivables	26,307	33,059
Inventories	80,714	70,493
Prepaid expenses	33,592	31,065
Current portion of assets held-for-sale	261,888	265,413
Other current assets	39,617	9,934
Total current assets	797,045	874,973
Property, plant and equipment, net	629,895	653,913
Right-of-use assets, net	104,227	101,576
Goodwill	744,780	883,109
Intangible assets, net	372,002	402,801
Deferred income tax assets	16,681	17,883
Assets held-for-sale	63,864	71,234
Other assets	42,901	48,419
Total assets	2,771,395	3,053,908
Current liabilities:
Short-term borrowings	9,463	7,748
Current maturities of long-term debt	16,784	10,226
Accounts payable	203,900	186,126
Accrued compensation	38,041	48,165
Income taxes payable	4,271	6,378
Current portion of operating lease liabilities	25,989	25,590
Current portion of liabilities of assets held-for-sale	157,231	161,999
Other current liabilities	136,019	155,159
Total current liabilities	591,698	601,391
Long-term debt	1,314,918	1,359,446
Retirement plan liabilities	49,286	93,693
Operating lease liabilities	77,304	74,571
Liabilities of assets held-for-sale	7,437	8,492
Environmental liabilities	26,678	28,435
Deferred tax liabilities	32,497	33,826
Other liabilities	45,442	48,284
Total liabilities	2,145,260	2,248,138
COMMITMENTS AND CONTINGENCIES
HARSCO CORPORATION STOCKHOLDERS' EQUITY
Common stock	145,390	144,883
Additional paid-in capital	223,172	215,528
Accumulated other comprehensive loss	(596,764)	(560,139)
Retained earnings	1,651,159	1,794,510
Treasury stock	(848,439)	(846,622)
Total Harsco Corporation stockholders’ equity	574,518	748,160
Noncontrolling interests	51,617	57,610
Total equity	626,135	805,770
Total liabilities and equity	$ 2,771,395	$ 3,053,908

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues from continuing operations:
Total revenues	$ 486,914	$ 470,385	$ 1,420,763	$ 1,386,324
Costs and expenses from continuing operations:
Selling, general and administrative expenses	64,146	70,629	201,234	213,048
Research and development expenses	193	331	545	811
Goodwill impairment charge	0	0	104,580	0
Other (income) expenses, net	(351)	(2,835)	515	(7,993)
Total costs and expenses	456,791	443,464	1,479,895	1,314,020
Operating income (loss) from continuing operations	30,123	26,921	(59,132)	72,304
Interest income	952	544	2,289	1,668
Interest expense	(19,751)	(15,741)	(51,535)	(47,640)
Facility fees and debt-related income (expense)	(2,511)	(198)	(894)	(5,506)
Defined benefit pension income	2,118	3,887	6,775	11,777
Income (loss) from continuing operations before income taxes and equity income	10,931	15,413	(102,497)	32,603
Income tax benefit (expense) from continuing operations	(9,376)	(7,816)	(7,482)	(14,714)
Equity income (loss) of unconsolidated entities, net	(128)	(293)	(373)	(488)
Income (loss) from continuing operations	1,427	7,304	(110,352)	17,401
Discontinued operations:
Income (loss) from discontinued businesses	1,993	1,301	(35,225)	12,904
Income tax benefit (expense) from discontinued businesses	(539)	1,223	5,282	(3,832)
Income (loss) from discontinued operations, net of tax	1,454	2,524	(29,943)	9,072
Net income (loss)	2,881	9,828	(140,295)	26,473
Less: Net (income) loss attributable to noncontrolling interests	(802)	(2,264)	(3,056)	(5,386)
Net income (loss) attributable to Harsco Corporation	2,079	7,564	(143,351)	21,087
Amounts attributable to Harsco Corporation common stockholders:
Income (loss) from continuing operations, net of tax	625	5,040	(113,408)	12,015
Income (loss) from discontinued operations, net of tax	1,454	2,524	(29,943)	9,072
Net income (loss) attributable to Harsco Corporation	$ 2,079	$ 7,564	$ (143,351)	$ 21,087
Weighted-average shares of common stock outstanding (in shares)	79,531	79,287	79,469	79,214
Basic earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)	$ 0.01	$ 0.06	$ (1.43)	$ 0.15
Discontinued operations (in dollars per share)	0.02	0.03	(0.38)	0.11
Basic earnings (loss) per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ 0.03	$ 0.10	$ (1.80)	$ 0.27
Diluted weighted-average shares of common stock outstanding (in shares)	79,567	80,275	79,469	80,356
Diluted earnings (loss) per common share attributable to Harsco Corporation common stockholders:
Continuing operations (in dollars per share)	$ 0.01	$ 0.06	$ (1.43)	$ 0.15
Discontinued operations (in dollars per share)	0.02	0.03	(0.38)	0.11
Diluted earnings (loss) per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ 0.03	$ 0.09	$ (1.80)	$ 0.26
Service Revenues
Revenues from continuing operations:
Total revenues	$ 442,775	$ 430,824	$ 1,300,828	$ 1,274,814
Costs and expenses from continuing operations:
Cost of services and products sold	357,194	344,050	1,072,545	1,018,885
Product Revenues
Revenues from continuing operations:
Total revenues	44,139	39,561	119,935	111,510
Costs and expenses from continuing operations:
Cost of services and products sold	$ 35,609	$ 31,289	$ 100,476	$ 89,269

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,881	$ 9,828	$ (140,295)	$ 26,473
Other comprehensive income (loss):
Foreign currency translation adjustments, net of deferred income taxes	(54,914)	(27,587)	(116,407)	(15,437)
Net gain (loss) on cash flow hedging instruments, net of deferred income taxes	1,143	822	3,003	1,745
Pension liability adjustments, net of deferred income taxes	28,163	17,768	70,691	23,812
Unrealized gain (loss) on marketable securities, net of deferred income taxes	(7)	0	(20)	25
Total other comprehensive income (loss)	(25,615)	(8,997)	(42,733)	10,145
Total comprehensive income (loss)	(22,734)	831	(183,028)	36,618
Less: Comprehensive (income) loss attributable to noncontrolling interests	1,921	(1,820)	3,052	(4,549)
Comprehensive income (loss) attributable to Harsco Corporation	$ (20,813)	$ (989)	$ (179,976)	$ 32,069

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustments, deferred income taxes	$ (4,641)	$ (1,850)	$ (11,095)	$ (675)
Net gain (loss) on cash flow hedging instruments, deferred income taxes	(346)	(217)	(977)	(519)
Pension liability adjustments, deferred income taxes	(313)	(358)	(977)	(1,054)
Unrealized gain (loss) on marketable securities, deferred income taxes	$ 3	$ 0	$ 7	$ (9)

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income (loss)	$ (140,295)	$ 26,473
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	97,959	98,383
Amortization	25,605	26,554
Deferred income tax (benefit) expense	(12,056)	(8,911)
Equity (income) loss of unconsolidated entities, net	373	488
Dividends from unconsolidated entities	526	0
(Gain) loss on early extinguishment of debt	(2,254)	2,668
Goodwill impairment charge	104,580	0
Other, net	381	(1,147)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:
Accounts receivable	74,994	(32,563)
Income tax refunds receivable, reimbursable to seller	7,687	735
Inventories	(11,339)	3,557
Contract assets	9,589	(52,205)
Right-of-use assets	21,829	21,050
Accounts payable	13,030	12,111
Accrued interest payable	(7,559)	(7,840)
Accrued compensation	(5,559)	12,098
Advances on contracts	(5,987)	(13,997)
Operating lease liabilities	(21,498)	(20,554)
Retirement plan liabilities, net	(27,829)	(36,700)
Other assets and liabilities	8,984	16,550
Net cash provided by operating activities	131,161	46,750
Cash flows from investing activities:
Purchases of property, plant and equipment	(101,645)	(109,507)
Proceeds from sales of assets	8,289	15,512
Expenditures for intangible assets	(147)	(287)
Proceeds from notes receivable	8,605	6,400
Net proceeds (payments) from settlement of foreign currency forward exchange contracts	13,571	(1,064)
Payments for settlements of interest rate swaps	(2,586)	0
Other investing activities, net	220	181
Net cash used by investing activities	(73,693)	(88,765)
Cash flows from financing activities:
Short-term borrowings, net	277	4,650
Current maturities and long-term debt:
Additions	159,429	507,468
Reductions	(198,831)	(452,351)
Dividends paid to noncontrolling interests	(4,841)	(3,103)
Noncontrolling Interest - purchase or sale	1,901	0
Stock-based compensation - Employee taxes paid	(1,817)	(3,273)
Payment of contingent consideration	(6,915)	(734)
Deferred financing costs	0	(7,828)
Other financing activities, net	0	(601)
Net cash (used) provided by financing activities	(50,797)	44,228
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	(8,762)	(1,779)
Net increase in cash and cash equivalents, including restricted cash	(2,091)	434
Cash and cash equivalents, including restricted cash, at beginning of period	87,128	79,669
Cash and cash equivalents, including restricted cash, at end of period	85,037	80,103
Supplementary cash flow information:
Change in accrual for purchases of property, plant and equipment included in accounts payable	$ 7,419	$ 2,357

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock Issued	Common Stock Treasury	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance at Dec. 31, 2020	$ 713,399	$ 144,288	$ (843,230)	$ 204,078	$ 1,797,759	$ (645,741)	$ 56,245
Increase (Decrease) in Stockholders' Equity
Net income (loss)	1,565				135		1,430
Total other comprehensive income	1,229					2,295	(1,066)
Stock appreciation rights exercised, net	(70)	9	(70)	(9)
Vesting of restricted stock units and other stock grants, net	(1,850)	312	(1,850)	(312)
Vesting of performance share units, net	(1,032)	155	(1,032)	(155)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,342			3,342
Ending balance at Mar. 31, 2021	716,583	144,764	(846,182)	206,944	1,797,894	(643,446)	56,609
Increase (Decrease) in Stockholders' Equity
Total other comprehensive income, deferred income taxes	134
Beginning balance at Dec. 31, 2020	713,399	144,288	(843,230)	204,078	1,797,759	(645,741)	56,245
Increase (Decrease) in Stockholders' Equity
Net income (loss)	26,473
Total other comprehensive income	10,145
Ending balance at Sep. 30, 2021	753,227	144,856	(846,502)	213,095	1,818,846	(634,759)	57,691
Beginning balance at Mar. 31, 2021	716,583	144,764	(846,182)	206,944	1,797,894	(643,446)	56,609
Increase (Decrease) in Stockholders' Equity
Net income (loss)	15,080				13,388		1,692
Noncontrolling interests	(3,094)						(3,094)
Total other comprehensive income	17,913					17,240	673
Stock appreciation rights exercised, net	(219)	28	(219)	(28)
Vesting of performance share units, net	0	44		(44)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,120			3,120
Ending balance at Jun. 30, 2021	749,383	144,836	(846,401)	209,992	1,811,282	(626,206)	55,880
Increase (Decrease) in Stockholders' Equity
Total other comprehensive income, deferred income taxes	34
Net income (loss)	9,828				7,564		2,264
Noncontrolling interests	(9)						(9)
Total other comprehensive income	(8,997)					(8,553)	(444)
Vesting of restricted stock units and other stock grants, net	(101)	20	(101)	(20)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,123			3,123
Ending balance at Sep. 30, 2021	753,227	144,856	(846,502)	213,095	1,818,846	(634,759)	57,691
Increase (Decrease) in Stockholders' Equity
Total other comprehensive income, deferred income taxes	(2,425)
Beginning balance at Dec. 31, 2021	805,770	144,883	(846,622)	215,528	1,794,510	(560,139)	57,610
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(38,680)				(39,839)		1,159
Total other comprehensive income	12,008					12,490	(482)
Vesting of restricted stock units and other stock grants, net	(1,632)	378	(1,632)	(378)
Amortization of unearned portion of stock-based compensation, net of forfeitures	3,629			3,629
Ending balance at Mar. 31, 2022	781,095	145,261	(848,254)	218,779	1,754,671	(547,649)	58,287
Increase (Decrease) in Stockholders' Equity
Total other comprehensive income, deferred income taxes	(2,520)
Beginning balance at Dec. 31, 2021	805,770	144,883	(846,622)	215,528	1,794,510	(560,139)	57,610
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(140,295)
Total other comprehensive income	(42,733)
Ending balance at Sep. 30, 2022	626,135	145,390	(848,439)	223,172	1,651,159	(596,764)	51,617
Beginning balance at Mar. 31, 2022	781,095	145,261	(848,254)	218,779	1,754,671	(547,649)	58,287
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(104,496)				(105,591)		1,095
Total other comprehensive income	(29,126)					(26,223)	(2,903)
Contributions from noncontrolling interests	1,900						1,900
Stock appreciation rights exercised, net	(66)	29	(66)	(29)
Vesting of restricted stock units and other stock grants, net	0	29		(29)
Amortization of unearned portion of stock-based compensation, net of forfeitures	2,396			2,396
Ending balance at Jun. 30, 2022	651,703	145,319	(848,320)	221,117	1,649,080	(573,872)	58,379
Increase (Decrease) in Stockholders' Equity
Total other comprehensive income, deferred income taxes	(5,225)
Net income (loss)	2,881				2,079		802
Noncontrolling interests	(4,841)						(4,841)
Total other comprehensive income	(25,615)					(22,892)	(2,723)
Vesting of restricted stock units and other stock grants, net	(119)	71	(119)	(71)
Amortization of unearned portion of stock-based compensation, net of forfeitures	2,126			2,126
Ending balance at Sep. 30, 2022	626,135	$ 145,390	$ (848,439)	$ 223,172	$ 1,651,159	$ (596,764)	$ 51,617
Increase (Decrease) in Stockholders' Equity
Total other comprehensive income, deferred income taxes	$ (5,297)

CONDENSED CONSOLIDATED STATEM_6

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Total other comprehensive income, deferred income taxes	$ (5,297)	$ (5,225)	$ (2,520)	$ (2,425)	$ 34	$ 134
Stock appreciation rights exercised (in shares)		16,671			13,061	3,842
Vesting of restricted stock units and other stock grants (in shares)	32,836	23,224	176,253	10,824	34,986	144,967
Vesting of performance share units (in shares)						69,127

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Company has prepared these unaudited condensed consolidated financial statements in accordance with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the SEC. Accordingly, the unaudited condensed consolidated financial statements do not include all information and disclosure required by U.S. GAAP for annual financial statements. The December 31, 2021 Condensed Consolidated Balance Sheet information contained in this Quarterly Report on Form 10-Q was derived from the 2021 audited consolidated financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements, including the notes thereto, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. In the opinion of management, all adjustments (all of which are of a normal recurring nature) that are necessary for a fair statement are reflected in these unaudited condensed consolidated financial statements. Liquidity The Company’s cash flow forecasts, combined with existing cash and cash equivalents and borrowings available under the Senior Secured Credit Facilities, indicate sufficient liquidity to fund the Company’s operations for at least the next twelve months. As such, the Company’s unaudited consolidated financial statements have been prepared on the basis that it will continue as a going concern for a period extending beyond twelve months from the date the unaudited consolidated financial statements are issued. This assessment includes the expected ability to meet required financial covenants and the continued ability to draw down on the Senior Secured Credit Facilities (see Note 9). Reclassifications Certain reclassifications have been made to prior year amounts to conform with current year classifications. During the second quarter of 2022, the Company recognized $2.6 million in service revenues as an out-of-period adjustment in the Harsco Clean Earth Segment. The adjustment was not considered material to the interim or annual consolidated financial statements for the nine months ended September 30, 2022, or the financial statements of any previously filed interim or annual periods. There was no impact to the interim consolidated financial statements for the three months ended September 30, 2022.

Recently Adopted and Recently I

Recently Adopted and Recently Issued Accounting Standards	9 Months Ended
	Sep. 30, 2022
Accounting Changes and Error Corrections [Abstract]
Recently Adopted and Recently Issued Accounting Standards	Recently Adopted and Recently Issued Accounting Standards The following accounting standards have been adopted in 2022: On January 1, 2022, the Company adopted changes issued by the FASB which simplified the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity's own equity. The adoption of these changes did not have a material impact on the Company's condensed consolidated financial statements. On January 1, 2022, the Company adopted changes issued by the FASB which improve the transparency of government assistance received by entities. Other than expanded annual disclosures, the adoption of these changes did not have a material impact on the Company's consolidated financial statements. The following accounting standards have been issued and become effective for the Company at a future date: In March 2020 and January 2021, the FASB issued changes that, together, provide companies with optional guidance to ease the potential accounting burden associated with transitioning from reference rates that are expected to be discontinued. In response to the concerns about risks of alternative reference rates and, particularly, the risk of cessation of LIBOR, regulators in several jurisdictions around the world have undertaken reference rate reform initiatives to identify alternative reference rates that are more observable or transaction-based and less susceptible to manipulation. The changes provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The changes can be adopted no later than December 31, 2022. The Company has identified financial instruments linked to LIBOR and intends to transition to alternative reference rates by December 31, 2022. The adoption of the applicable provisions will coincide with the modifications of the affected financial instruments. The transition from LIBOR is not expected to have a material impact on the Company.

Dispositions

Dispositions	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Dispositions	Dispositions Harsco Rail Segment In November 2021, the Company announced its intention to sell its Rail business and the sales process is ongoing. The former Harsco Rail Segment was historically a separate reportable segment with primary operations in the United States, Europe and Asia Pacific. The former Harsco Rail Segment's balance sheet positions as of September 30, 2022 and December 31, 2021 are presented as Assets held-for-sale and Liabilities of assets held-for-sale in the Condensed Consolidated Balance Sheets and are summarized as follows: (in thousands) September 30 December 31 Trade accounts receivable, net $ 44,677 $ 33,689 Other receivables 4,304 4,740 Inventories 97,552 103,560 Current portion of contract assets 87,199 94,597 Other current assets 27,961 25,442 Property, plant and equipment, net 40,012 39,524 Right-of-use assets, net 1,903 3,108 Goodwill 13,026 13,026 Intangible assets, net 2,786 3,081 Deferred income tax assets 4,993 6,064 Other assets 1,144 6,432 Total Rail assets included in Assets held-for-sale $ 325,557 $ 333,263 Accounts payable $ 35,794 $ 46,076 Accrued compensation 3,420 2,171 Current portion of operating lease liabilities 990 1,619 Current portion of advances on contracts 50,536 62,401 Other current liabilities 66,492 49,732 Operating lease liabilities 997 1,775 Deferred tax liabilities 5,571 5,736 Other liabilities 868 981 Total Rail liabilities included in Liabilities of assets held-for-sale $ 164,668 $ 170,491 The results of the former Harsco Rail Segment are presented as discontinued operations and, as such, have been excluded from both continuing operations and segment results for the three and nine months ended September 30, 2022, and 2021. Certain key selected financial information included in Income (loss) from discontinued operations, net of tax, for the former Harsco Rail Segment is as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Amounts directly attributable to the former Harsco Rail Segment: Service revenues $ 8,629 $ 7,800 $ 22,827 $ 24,990 Product revenues (a) 60,386 66,115 169,778 231,661 Cost of services sold 6,559 4,193 15,823 12,373 Cost of products sold 49,789 54,830 176,210 189,288 Income (loss) from discontinued businesses 3,964 2,829 (26,768) 17,674 Additional amounts allocated to the former Harsco Rail Segment: Selling, general and administrative expenses (b) $ 376 $ — $ 3,887 $ — (a) The decrease in product revenues for the nine months ended September 30, 2022 as compared to the nine months ended September 30, 2021 is due in part to liquidated damages and penalties on certain long-term contracts, as discussed below. (b) The Company has allocated directly attributable transaction costs to discontinued operations. The Company has retained corporate overhead expenses previously allocated to the former Harsco Rail Segment of $1.0 million and $3.1 million for each of the three and nine months ended September 30, 2022, and 2021, respectively, as part of Selling, general and administrative expenses on the Condensed Consolidated Statements of Operations. The Company's former Harsco Rail Segment is currently manufacturing highly-engineered equipment under large long-term fixed-price contracts with SBB, Network Rail, and Deutsche Bahn. As previously disclosed, in the fourth quarter of 2021 the Company recognized an estimated forward loss provision of $33.4 million related to these contracts. In 2022, the Company encountered continued supply chain related delays and additional costs in building the machines. For the Network Rail contracts, the Company encountered supply chain delays in the build of the initial machine, and there were further changes to the production schedule based on the manufacturing experience gained from assembling the first unit during the first quarter of 2022 which had a cascading effect on the delivery schedule of remaining machines. During the nine months ended September 30, 2022, the Company recorded additional forward loss provisions of $24.5 million, principally for additional estimated contractual liquidated damages which were recorded as a reduction to revenue in the first quarter of 2022. The Company continues to negotiate with Network Rail regarding a reduction to these liquidated damages, which could result in additional favorable or unfavorable adjustments in future periods. For the Deutsche Bahn contract, on March 8, 2022 a European-based supplier of critical components to the project, indicated it would be significantly late on the delivery of these components to the project, which has the impact of delaying the overall delivery schedule for the project. As a result, the Company recorded an additional $7.4 million estimated forward loss provision during the first quarter of 2022 due principally to the estimated contractual penalties that would be triggered by this delay and thus recorded as a reduction of revenue. Additionally, this supplier filed for bankruptcy during the second quarter of 2022, although it continues to operate. Should this supplier cease operations, the Company may incur further losses if there are additional costs to change suppliers or an inability to recover the value of prepayments made to the supplier, as well as additional penalties and damages under the contract with Deutsche Bahn in the event of further production delays. For the second SBB contract, the Company recorded an additional $3.5 million forward estimated loss provision during the first quarter of 2022 due to additional supply chain delays and cost overruns. The estimated forward loss provisions represent the Company's best estimate based on currently available information. It is possible that the Company's overall estimate of liquidated damages, penalties and costs to complete these contracts may change, which would result in an additional estimated forward loss provision at such time. The first contract with SBB is complete, and the second contract is 83% complete as of September 30, 2022. The contracts with Network Rail and Deutsche Bahn are 50% and 29% complete, respectively, as of September 30, 2022. The following is selected financial information included on the Condensed Consolidated Statements of Cash Flows attributable to the former Harsco Rail Segment: Nine Months Ended September 30 (In thousands) 2022 2021 Non-cash operating items Depreciation and amortization $ — $ 3,905 Cash flows from investing activities Purchases of property, plant and equipment 1,494 1,329

Accounts Receivable and Note Re

Accounts Receivable and Note Receivable	9 Months Ended
	Sep. 30, 2022
Receivables [Abstract]
Accounts Receivable and Note Receivable	Accounts Receivable and Note Receivable Accounts receivable consist of the following: September 30, 2022 December 31 2021 (a) Trade accounts receivable $ 278,876 $ 389,535 Less: Allowance for expected credit losses (8,986) (11,654) Trade accounts receivable, net $ 269,890 $ 377,881 Other receivables (b) $ 26,307 $ 33,059 (a) The December 31, 2021 amounts for trade accounts receivable and allowance for expected credit losses have been revised from the presentation in the Company's 2021 10-K. This revision did not impact trade accounts receivable, net. (b) Other receivables include employee receivables, insurance receivable, tax claims and refunds and other miscellaneous items not included in Trade accounts receivable, net. The provision for expected credit losses related to trade accounts receivable was as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Provision for expected credit losses related to trade accounts receivable $ (340) $ (146) $ (283) $ 582 At September 30, 2022, $7.4 million of the Company's trade accounts receivable were past due by twelve months or more, with $3.2 million of this amount reserved. Collection of the remaining balance is still ultimately expected. Accounts Receivable Securitization Facility On June 24, 2022, the Company and its wholly-owned bankruptcy-remote special purpose entity ("SPE") entered into a trade receivables securitization facility (“AR Facility”) with PNC Bank, National Association ("PNC") to accelerate cash flows from trade accounts receivable. The AR Facility has a three-year term. Under the AR Facility, the Company and its subsidiaries continuously sell their trade receivables as they are originated to the SPE. The Company controls and therefore consolidates the SPE in its condensed consolidated financial statements. The SPE transfers ownership and control of qualifying receivables to PNC up to a maximum purchase commitment of $150.0 million. The Company and related subsidiaries have no continuing involvement in the transferred accounts receivable, other than collection and administrative responsibilities, and, once sold, are no longer available to satisfy creditors of the Company or the related subsidiaries. The Company accounts for receivables sold from the SPE to PNC as a sale of financial assets and derecognizes the trade receivables from the Company's Condensed Consolidated Balance Sheets. The total outstanding balance of trade receivables that have been sold and derecognized by the SPE is $145.0 million as of September 30, 2022. The SPE owned $86.5 million of trade receivables as of September 30, 2022. These amounts are included in the caption Trade accounts receivable, net, on the Condensed Consolidated Balance Sheets. The fees incurred for the AR Facility are included in Facility fees and debt-related income (expense) on the Condensed Consolidated Statements of Operations. See Note 9, Debt and Credit Agreements, for additional details. The Company capitalized fees of $1.8 million related to the securitization facility, which are being amortized over the term of the agreement. Upon execution of the AR Facility during the second quarter of 2022, the Company received proceeds of $120.0 million. In the third quarter of 2022, the Company sold an additional $25.0 million of receivables to PNC, and has received a total of $145.0 million in proceeds as of September 30, 2022, which is included in cash from operating activities in the Condensed Consolidated Statement of Cash Flows. Factoring Arrangements The Company maintains factoring arrangements with a financial institution to sell certain accounts receivable that are also accounted for as a sale of financial assets. At September 30, 2022 and December 31, 2021, the net amounts sold under the arrangements were $15.7 million and $12.9 million, respectively, under program capacities totaling $28.8 million and $16.5 million, respectively. Note Receivable In January 2020, the Company sold IKG for $85.0 million including cash and a note receivable, subject to post-closing adjustments. The note receivable from the buyer has a face value of $40.0 million, bearing interest at 2.50%, that is paid in kind and matures on January 31, 2027. Any unpaid principal, along with any accrued but unpaid interest is payable at maturity. Prepayment is required in case of a change in control or a percentage of excess cash flow, as defined in the note receivable agreement. Because there are no scheduled payments under the terms of the note receivable, the balance is not classified as current as of September 30, 2022 and is included in the caption Other assets on the Condensed Consolidated Balance Sheet. The initial fair value of the note receivable was $34.3 million which was calculated using an average of various discounted cash flow scenarios based on anticipated timing of repayments (Level 3) and was a non-cash transaction. The note receivable is subsequently measured at amortized cost. Key inputs into the valuation model include: projected timing and amount of cash flows, pro forma debt rating, option-adjusted spread and U.S. Treasury spot rate. During the second quarter of 2022, the Company received a payment of $8.6 million related to excess cash flow. (In thousands) September 30 December 31 Note receivable, at amortized cost $ 23,556 $ 31,025 Note receivable, fair value 23,300 32,300

Inventories

Inventories	9 Months Ended
	Sep. 30, 2022
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consist of the following: (In thousands) September 30 December 31 Finished goods $ 9,714 $ 8,323 Work-in-process 4,109 5,393 Raw materials and purchased parts 27,065 21,188 Stores and supplies 39,826 35,589 Total inventories $ 80,714 $ 70,493

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
	Sep. 30, 2022
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consist of the following: (In thousands) September 30 December 31 Land $ 72,593 $ 73,067 Land improvements 16,404 16,970 Buildings and improvements 212,157 221,236 Machinery and equipment 1,441,669 1,507,214 Uncompleted construction 73,645 63,816 Gross property, plant and equipment 1,816,468 1,882,303 Less: Accumulated depreciation (1,186,573) (1,228,390) Property, plant and equipment, net $ 629,895 $ 653,913

Leases

Leases	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Leases	Leases The components of lease expense were as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Finance leases: Amortization expense $ 940 $ 743 $ 2,897 $ 1,692 Interest on lease liabilities 198 129 563 340 Operating leases 8,604 8,133 25,105 23,961 Variable and short-term lease expense 11,958 12,279 37,287 37,405 Sublease income (2) (1) (5) (52) Total lease expense from continuing operations $ 21,698 $ 21,283 $ 65,847 $ 63,346 As of September 30, 2022, the Company had additional operating leases for equipment that had not yet commenced with estimated operating lease obligations of approximately $13 million to be recognized upon anticipated lease commencements in the fourth quarter of 2022 and throughout 2023. The former Harsco Rail segment had additional operating leases for buildings that have not yet commenced with estimated obligations of approximately $2 million to be recognized upon anticipated lease commencement in the fourth quarter of 2022.
Leases	Leases The components of lease expense were as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Finance leases: Amortization expense $ 940 $ 743 $ 2,897 $ 1,692 Interest on lease liabilities 198 129 563 340 Operating leases 8,604 8,133 25,105 23,961 Variable and short-term lease expense 11,958 12,279 37,287 37,405 Sublease income (2) (1) (5) (52) Total lease expense from continuing operations $ 21,698 $ 21,283 $ 65,847 $ 63,346 As of September 30, 2022, the Company had additional operating leases for equipment that had not yet commenced with estimated operating lease obligations of approximately $13 million to be recognized upon anticipated lease commencements in the fourth quarter of 2022 and throughout 2023. The former Harsco Rail segment had additional operating leases for buildings that have not yet commenced with estimated obligations of approximately $2 million to be recognized upon anticipated lease commencement in the fourth quarter of 2022.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The following table reflects the changes in carrying amounts of goodwill by segment for the nine months ended September 30, 2022: (In thousands) Harsco Environmental Harsco Consolidated Balance at December 31, 2021 $ 399,230 $ 483,879 $ 883,109 Goodwill impairment — (104,580) (104,580) Foreign currency translation (33,749) — (33,749) Balance at September 30, 2022 $ 365,481 $ 379,299 $ 744,780 The Company tests for goodwill impairment annually, or more frequently if indicators of impairment exist, or if a decision is made to dispose of a business. The Company performs its annual goodwill impairment test as of October 1 and monitors for triggering events on an ongoing basis. As of June 30, 2022, the Company determined that an interim test of goodwill was required. The triggering event was principally due to lower earnings expectations due to the impacts of inflation. The Company used a discounted cash flow model (“DCF model”) to estimate the current fair value of the Clean Earth reporting unit (Level 3), which is defined as the Clean Earth Segment. A number of significant assumptions and estimates are involved in the preparation of DCF models including future revenues and operating margin growth, the weighted-average cost of capital (“WACC”), tax rates, capital spending, pension funding, the impact of business initiatives and working capital projections. The DCF model is based on approved forecasts for the early years and historical relationships and projections for later years. The WACC rate is derived from internal and external factors including, but not limited to, the average market price of the Company's stock, shares outstanding, book value of the Company's debt, the long-term risk-free interest rate, and both market and size-specific risk premiums. As a result of this testing, the Company recorded a goodwill impairment charge of $104.6 million for the Clean Earth Segment in the second quarter of 2022. This charge had no impact on the Company's cash flows or compliance with debt covenants. The Company determined that, as of September 30, 2022, there were no events or indicators present that would indicate that it was more-likely-than-not that its reporting units' fair values were less than their carrying amounts, which would require a further interim impairment analysis. However, a continued economic downturn, including continued cost inflation and labor shortages, as well as rising interest rates, could impact the Company's future projected cash flows and discount rates used to estimate fair value, which could result in an impairment charge to any of the Company's reporting units in a future period. Other Intangibles Because of lower-than-expected results for the Altek Group of the Harsco Environmental Segment for 2021 due to the timing of customer contracts, the Company tested Altek's asset group's recoverability in the fourth quarter of 2021 and no impairment was recorded. The long-lived assets (other than goodwill) of the Altek Group within the Harsco Environmental Segment primarily consist of intangible assets which have a carrying value of approximately $29 million at September 30, 2022. The Company has not identified any triggering events for the Altek asset group in the third quarter of 2022. However, if actual results prove inconsistent with the Company’s assumptions and judgments of the projected cash flows, it could result in impairment of the Altek intangible assets in future periods.

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans Three Months Ended September 30 Defined Benefit Pension Plan Net Periodic Pension Cost (Benefit) U.S. Plans International Plans (In thousands) 2022 2021 2022 2021 Service costs $ — $ — $ 400 $ 463 Interest costs 1,429 1,203 3,887 3,194 Expected return on plan assets (2,699) (3,050) (9,145) (11,358) Recognized prior service costs — — 107 127 Recognized actuarial losses 1,183 1,384 3,115 4,573 Defined benefit pension plan net periodic pension cost (benefit) $ (87) $ (463) $ (1,636) $ (3,001) Nine Months Ended September 30 Defined Benefit Pension Plans Net Periodic Pension Cost (Benefit) U.S. Plans International Plans (In thousands) 2022 2021 2022 2021 Service costs $ — $ — $ 1,250 $ 1,391 Interest costs 4,287 3,609 12,409 9,576 Expected return on plan assets (8,096) (9,150) (29,250) (34,080) Recognized prior service costs — — 340 381 Recognized actuarial losses 3,549 4,154 9,972 13,722 Defined benefit pension plans net periodic pension cost (benefit) $ (260) $ (1,387) $ (5,279) $ (9,010) Three Months Ended Nine Months Ended Company Contributions September 30 September 30 (In thousands) 2022 2021 2022 2021 Defined benefit pension plans (U.S.) $ 426 $ 451 $ 1,313 $ 3,768 Defined benefit pension plans (International) 3,824 4,549 19,411 21,472 Multiemployer pension plans 446 429 1,381 1,311 Defined contribution pension plans 3,019 2,936 9,948 9,366

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense related to continuing operations for the three and nine months ended September 30, 2022 was $9.4 million and $7.5 million, respectively, compared with $7.8 million and $14.7 million for the three and nine months ended September 30, 2021, respectively. Income tax expense related to continuing operations for the three months ended September 30, 2022 compared with the three months ended September 30, 2021 increased primarily due to disallowed interest expense in U.S. due to lower taxable income, offset by lower operating income primarily as a result of cost increases due to inflation. Income tax expense related to continuing operations for the nine months ended September 30, 2022 compared with the nine months ended September 30, 2021 decreased primarily from lower operating income as a result of cost increases due to inflation and labor shortages, as well as the tax benefit on a portion of the Harsco Clean Earth Segment goodwill impairment. The reserve for uncertain tax positions at September 30, 2022 was

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Environmental The Company is involved in a number of environmental remediation investigations and cleanups and, along with other companies, has been identified as a “potentially responsible party” for certain byproduct disposal sites. While each of these matters is subject to various uncertainties, it is probable that the Company will agree to make payments toward funding certain of these activities, and it is possible that some of these matters will be decided unfavorably to the Company. The Company has evaluated its potential liability and its financial exposure is dependent upon such factors as the continuing evolution of environmental laws and regulatory requirements, the availability and application of technology, the allocation of cost among potentially responsible parties, the years of remedial activity required and the remediation methods selected. The Company evaluates its liability for future environmental remediation costs on a quarterly basis. Although actual costs to be incurred at identified sites in future periods may vary from the estimates (given inherent uncertainties in evaluating environmental exposures), the Company does not expect that any costs that are reasonably possible to be incurred by the Company in connection with environmental matters in excess of the amounts accrued would have a material adverse effect on the Company's financial condition, results of operations or cash flows. The following table summarizes information related to the location and undiscounted amount of the Company's environmental liabilities: (In thousands) September 30 December 31 Current portion of environmental liabilities (a) $ 8,491 $ 7,338 Long-term environmental liabilities 26,678 28,435 Total environmental liabilities $ 35,169 $ 35,773 (a) The current portion of environmental liabilities is included in the caption Other current liabilities on the Condensed Consolidated Balance Sheets. Legal Proceedings In the ordinary course of business, the Company is a defendant or party to various claims and lawsuits, including those discussed below. On March 28, 2018, the United States Environmental Protection Agency (the “EPA”) conducted an inspection of ESOL’s off-site waste management facility in Detroit, MI. On November 23, 2021, the EPA proposed a civil penalty of $390,092 as part of a proposed Administrative Consent Order for alleged improper air emissions at the site. The allegations in the proposed Administrative Consent Order and civil penalty relate exclusively to the period prior the Company’s purchase of the ESOL business. The Company is vigorously contesting the allegations. While it is the Company's position that any loss related to this issue will be recoverable under indemnity rights under the ESOL purchase agreement and representations and warranties insurance policies purchased by the Company, there can be no assurance that the Company's position will ultimately prevail. On August 31, 2022, the parties executed a Tolling Agreement which excludes the period from March 1, 2022 through December 30, 2022 for the purposes of calculating the statute of limitations and other related defenses. On January 27, 2020, the U.S. EPA issued a Notice of Potential Liability to the Company, along with several other companies, concerning the Newtown Creek Superfund Site located in Kings and Queens Counties in New York. The Notice alleges certain facilities formerly owned or operated by subsidiaries of the Company may have resulted in the discharge of hazardous substances into Newtown Creek or its Dutch Kills tributary. The site has been subject to CERCLA response activities since approximately 2011. The U.S. EPA expects to propose a sitewide cleanup plan no sooner than 2024 and announced in July 2021 that it would defer its decision on a potential early action response for the lower two miles of the Creek until the sitewide studies are completed. The Company is one of approximately twenty (20) Potentially Responsible Parties that have received notices, though it is believed other PRPs may exist. The Company vigorously contests the allegations of the Notice and currently does not believe that this matter will have a material effect on the Company’s financial position or results from operations. On June 25 and 26, 2018, the DTSC conducted a compliance enforcement inspection of ESOL’s facility in Rancho Cordova, California, which was then owned by Stericycle, Inc. On February 14, 2020, the DTSC filed an action in the Superior Court for the State of California, Sacramento Division, alleging violations of California’s Hazardous Waste Control Law and the facility’s hazardous waste permit arising from the inspection. On August 27, 2020 the DTSC issued a Notice of Denial of Hazardous Waste Facility Permit Application, denying the renewal of the facility's hazardous waste permit. The Company has exhausted its legal challenges to the denial of the Hazardous waste Facility Permit, and the hazardous waste facility is in the process of closing. The Company continues to utilize the site for non-hazardous waste and is evaluating additional potential alternate uses for the site. The DTSC investigation and compliance issues leading to the compliance tier assignment were ongoing well before the Company's acquisition of the ESOL business, and the Company was aware of the investigation and many of the issues raised in the investigation at the time of the purchase. Accordingly, the Company is indemnified for certain fines and other costs and expenses associated with this matter by Stericycle, Inc. The Company has not accrued any amounts in respect of these alleged violations and cannot estimate the reasonably possible loss or the range of reasonably possible losses that it may incur. As previously disclosed, the Company has had ongoing meetings with the SCE over processing salt cakes, a processing byproduct, stored at the Al Hafeerah site. The Company’s Bahrain operations that produced the salt cakes has ceased operations. An Environmental Impact Assessment and Technical Feasibility Study for facilities to process the salt cakes was approved by the SCE during the first quarter of 2018. Commissioning of the facilities was completed during the third quarter of 2021 and the processing of the salt cakes has commenced. The current reserve of $6.5 million continues to represent the Company's best estimate of the ultimate costs to be incurred to resolve this matter. The Company continues to evaluate this reserve and any future change in estimated costs which could be material to the Company’s results of operations in any one period. On July 27, 2018, Brazil’s Federal and Rio de Janeiro State Public Prosecution Offices (MPF and MPE) filed a Civil Public Action against one of the Company's customers (CSN), the Company’s Brazilian subsidiary, the Municipality of Volta Redonda, Brazil, and the Instituto Estadual do Ambiente (local environmental protection agency) seeking the implementation of various measures to limit and reduce the accumulation of customer-owned slag at the site in Brazil. On August 6, 2018 the 3rd Federal Court in Volta Redonda granted the MPF and MPE an injunction against the same parties requiring, among other things, CSN and the Company’s Brazilian subsidiary to limit the volume of slag sent to the site. Because the customer owns the site and the slag located on the site, the Company believes that complying with this injunction is the steel producer’s responsibility. On March 18, 2019 the Court issued an order fining the Company 5,000 Brazilian reais per day (or approximately $1 thousand per day) and CSN 20,000 Brazilian reais per day (or approximately $4 thousand per day) until the requirements of the injunction are met. On November 1, 2019 the Court issued an additional order increasing the fines assessed to the Company to 25,000 Brazilian reais per day (or approximately $5 thousand per day) and raising the fines assessed to CSN to 100,000 Brazilian reais per day (or approximately $19 thousand per day). The Court also assessed an additional fine of 10,000,000 Brazilian reais (or approximately $2 million) against CSN and the Company jointly. The Company is appealing the fines and the underlying injunction. Both the Company and CSN continue to have discussions with the Prosecution Offices and governmental authorities on the injunction and the possible resolution of the underlying case. Beginning on March 25, 2022, the Courts entered a series of orders suspending the litigation proceedings as well as the accrual of interest and penalties while the parties discuss a possible resolution of the matter. The Company does not believe that a loss relating to this matter is probable or estimable at this point. On October 19, 2018, local environmental authorities issued an enforcement action against the Company concerning the Company’s operations at a customer site in Ijmuiden, Netherlands. The enforcement action alleged violations of the Company’s environmental permit at the site, which restricts the release of any visible dust emissions. On January 12, 2022, the Administrative Supreme Court upheld the Company’s challenge of these enforcement actions as they relate to the slag tipping area of the site. As a result, all fines asserted against the Company to date have been invalidated and all fines paid to date have been reimbursed. This order is not appealable. On or about October 14, 2021, the Company received a subpoena and two indictments on this matter before the Amsterdam District Court in the Netherlands. The Amsterdam Public Prosecutor’s Office issued the two indictments against the Company, alleging violations in connection with dust releases and/or events alleged to have occurred in 2018 through May 2020 at the site. The action cites provisions which permit fines for the alleged infractions and seeks €100,000 in fines with a smaller amount held in abeyance. On February 25, 2022, the Amsterdam District Court ruled that the Company was liable for only one alleged violation and that this alleged violation was unintentional. The court issued a fine of €5,000, to be held in abeyance. Both the Company and the Public Prosecutor’s Office have appealed this ruling. On February 2, 2022, the prosecutor announced that they would further investigate residents’ claims related to this matter. The Company is vigorously contesting all allegations against it and is also working with its customer to ensure the control of emissions. The Company has contractual indemnity rights from its customer that it believes will substantially cover any fines or penalties. On March 22, 2022, the U.S. EPA issued a Notice of Intent to File an Administrative Complaint (NOI) alleging violations of the federal Emergency Planning and Community Right-to-Know Act at the Company’s facilities in Tacoma, WA and Kent, WA. The NOI relates exclusively or almost exclusively to the period when Stericycle owned and operated the sites. The NOI proposes a penalty of $3,000,000. The Company is currently reviewing the veracity of the allegations and the corresponding proposed penalty amount. While it is the Company’s position that it has recourse for some or all liabilities, if any, that arise from this matter under the ESOL purchase agreement and representations and warranties insurance policies purchased by the Company, there can be no assurances that the Company’s position will ultimately prevail. On March 21, 2022, the Company received a draft penalty matrix from the PA DEP concerning alleged reporting, monitoring and related issues at the Company’s Hatfield, PA site prior to the time the Company acquired the site from Stericycle. The draft penalty matrix proposes a penalty of $1,000,000. On June 29, 2022, the PA DEP issued a draft Consent Assessment of Civil Penalty ("CACP") related to the alleged issues at the site, although the draft CACP does not propose a specific penalty. The Company is currently reviewing the veracity of the allegations. While it is the Company’s position that it has recourse for some or all liabilities, if any, that arise from this matter under the ESOL purchase agreement and representations and warranties insurance policies purchased by the Company, there can be no assurances that the Company’s position will ultimately prevail. On November 5, 2020, a worker suffered a fatal injury at a site owned by the Company’s customer, Gerdau Ameristeel US, Inc., in Midlothian, TX. Although the Company was not directly involved in the accident, the worker was employed by a sub-contractor of a sub-contractor of the Company. The worker’s family filed suit in the 125th Judicial District Court of Harris County, TX against multiple parties including the Company. The Company is vigorously defending the lawsuit and has insurance coverage subject to a $5 million deductible. The Company has recorded a liability for its insurance deductible and an indemnification receivable from its customer for the recovery of certain losses based upon the contractual indemnity rights. There can be no assurances that the Company's position will ultimately prevail; however, any financial statement impact is not expected to be material. DEA Investigation Prior to the Company’s acquisition of ESOL, Stericycle, Inc. notified the Company that the DEA had served an administrative subpoena on Stericycle, Inc. and executed a search warrant at a facility in Rancho Cordova, California and an administrative inspection warrant at a facility in Indianapolis, Indiana. The Company has determined that the DEA and the DTSC have launched investigations involving, at least in part, the ESOL business of collecting, transporting, and destroying controlled substances from retail customers that transferred from Stericycle, Inc. to the Company. In connection with these investigations, the DEA also executed a search warrant on an ESOL facility in Austin Texas on July 2, 2020. The Company is cooperating with these inquiries, which relate primarily to the period before the Company owned the ESOL business. Since the acquisition of the ESOL business, the Company has performed a vigorous review of ESOL’s compliance program related to controlled substances and has made material changes to the manner in which controlled substances are transported from retail customers to DEA-registered facilities for destruction. The Company has not accrued any amounts in respect of these investigations and cannot estimate the reasonably possible loss or the range of reasonably possible losses that it may incur, if any. Investigations of this type are, by their nature, uncertain and unpredictable. While it is the Company’s position that it has recourse for some or all liabilities, if any, that arise from these matters under the ESOL purchase agreement and representations and warranties insurance policies purchased by the Company, there can be no assurances that the Company’s position will ultimately prevail. Brazilian Tax Disputes The Company is involved in a number of tax disputes with federal, state and municipal tax authorities in Brazil. These disputes are at various stages of the legal process, including the administrative review phase and the collection action phase, and include assessments of fixed amounts of principal and penalties, plus interest charges that increase at statutorily determined amounts per month and are assessed on the aggregate amount of the principal and penalties. In addition, the losing party, at the collection action or court of appeals phase, could be subject to a charge to cover statutorily mandated legal fees, which are generally calculated as a percentage of the total assessed amounts due, inclusive of penalty and interest. Many of the claims relate to ICMS, services and social security tax disputes. The largest proportion of the assessed amounts relate to ICMS claims filed by the SPRA, encompassing the period from January 2002 to May 2005. In October 2009, the Company received notification of the SPRA’s final administrative decision regarding the levying of ICMS in the State of São Paulo in relation to services provided to a customer in the State between January 2004 and May 2005. As of September 30, 2022 the principal amount of the tax assessment from the SPRA with regard to this case is approximately $1.1 million, with penalty, interest and fees assessed to date increasing such amount by an additional $16.3 million. On June 4, 2018 the Appellate Court of the State of Sao Paulo ruled in favor of the SPRA but ruled that the assessed penalty should be reduced to approximately $1.1 million. After calculating the interest accrued on the penalty, the Company estimates that this ruling reduces the current overall potential liability for this case to approximately $6.8 million. All such amounts include the effect of foreign currency translation. The Company has appealed the ruling in favor of the SPRA to the Superior Court of Justice. Due to multiple court precedents in the Company’s favor, as well as the Company’s ability to appeal, the Company does not believe a loss is probable. Another ICMS tax case involving the SPRA refers to the tax period from January 2002 to December 2003. In December 2018, the administrative tribunal hearing the case upheld the Company's liability. The aggregate amount assessed by the tax authorities in August 2005 was $4.7 million (the amounts with regard to this claim are valued as of the date of the assessment since it has not yet reached the collection phase), composed of a principal amount of $1.1 million, with penalty and interest assessed through that date increasing such amount by an additional $3.6 million. On December 6, 2018 the administrative tribunal reduced the applicable penalties to $0.8 million. After calculating the interest accrued on the current penalty, the Company estimates that the current overall liability for this case to be approximately $5.2 million. All such amounts include the effect of foreign currency translation. The Company has appealed to the judicial phase at the Third Trial Court of the District of Cubatão, State of São Paulo. On October 14, 2022, the District Court issued a decision holding that the Company is not liable for the taxes at issue. Due to multiple court precedents in the Company's favor, the Company does not believe a loss is probable. The Company continues to believe that sufficient coverage for these claims exists as a result of the indemnification obligations of the Company's customer and such customer’s pledge of assets in connection with the October 2009 notice, as required by Brazilian law. On December 30, 2020, the Company received an assessment from the municipal authority in Ipatinga, Brazil alleging $2.0 million in unpaid service taxes from the period 2015 to 2020. After calculating the interest and penalties accrued, the Company estimates that the current overall potential liability for this case to be approximately $3.3 million. On January 18, 2021, the Company filed a challenge to the assessment. Due to the multiple defenses that are available, the Company does not believe a loss is probable. The Company intends to continue its practice of vigorously defending itself against these tax claims under various alternatives, including judicial appeal. The Company will continue to evaluate its potential liability with regard to these claims on a quarterly basis; however, it is not possible to predict the ultimate outcome of these tax-related disputes in Brazil. No loss provision has been recorded in the Company's condensed consolidated financial statements for the disputes described above because the loss contingency is not deemed probable, and the Company does not expect that any costs that are reasonably possible to be incurred by the Company in connection with Brazilian tax disputes would have a material adverse effect on the Company's financial condition, results of operations or cash flows. Brazilian Labor Disputes The Company is subject to ongoing collective bargaining and individual labor claims in Brazil through the Harsco Environmental Segment which allege, among other things, the Company's failure to pay required amounts for overtime and vacation at certain sites. The Company is vigorously defending itself against these claims; however, litigation is inherently unpredictable, particularly in foreign jurisdictions. While the Company does not currently expect that the ultimate resolution of these claims will have a material adverse effect on the Company’s financial condition, results of operations or cash flows, it is not possible to predict the ultimate outcome of these labor-related disputes. As of September 30, 2022 and December 31, 2021, the Company has established reserves of $2.5 million and $3.2 million, respectively, on the Company's Condensed Consolidated Balance Sheets for amounts considered to be probable and estimable. Other The Company is named as one of many defendants (approximately 90 or more in most cases) in legal actions in the U.S. alleging personal injury from exposure to airborne asbestos over the past several decades. In their suits, the plaintiffs have named as defendants, among others, many manufacturers, distributors and installers of numerous types of equipment or products that allegedly contained asbestos. The Company believes that the claims against it are without merit. The Company has never been a producer, manufacturer or processor of asbestos fibers. Any asbestos-containing part of a Company product used in the past was purchased from a supplier and the asbestos encapsulated in other materials such that airborne exposure, if it occurred, was not harmful and is not associated with the types of injuries alleged in the pending actions. At September 30, 2022, there were approximately 17,220 pending asbestos personal injury actions filed against the Company. Of those actions, approximately 16,585 were filed in the New York Supreme Court (New York County), 115 were filed in other New York State Supreme Court Counties and 520 were filed in courts located in other states. The complaints in most of those actions generally follow a form that contains a standard damages demand of $20 million or $25 million, regardless of the individual plaintiff’s alleged medical condition, and without identifying any specific Company product. At September 30, 2022, approximately 16,550 of the actions filed in New York Supreme Court (New York County) were on the Deferred/Inactive Docket created by the court in December 2002 for all pending and future asbestos actions filed by persons who cannot demonstrate that they have a malignant condition or discernible physical impairment. The remaining approximately 35 cases in New York County are pending on the Active or In Extremis Docket created for plaintiffs who can demonstrate a malignant condition or physical impairment. The Company has liability insurance coverage under various primary and excess policies that the Company believes will be available, if necessary, to substantially cover any liability that might ultimately be incurred in the asbestos actions referred to above. The costs and expenses of the asbestos actions are being paid by the Company's insurers. In view of the persistence of asbestos litigation in the U.S., the Company expects to continue to receive additional claims in the future. The Company intends to continue its practice of vigorously defending these claims and cases. At September 30, 2022, the Company has obtained dismissal in approximately 28,400 cases by stipulation or summary judgment prior to trial. It is not possible to predict the ultimate outcome of asbestos-related actions in the U.S. due to the unpredictable nature of this litigation, and no loss provision has been recorded in the Company's condensed consolidated financial statements because a loss contingency is not deemed probable or estimable. Despite this uncertainty, and although results of operations and cash flows for a given period could be adversely affected by asbestos-related actions, the Company does not expect that any costs that are reasonably possible to be incurred by the Company in connection with asbestos litigation would have a material adverse effect on the Company's financial condition, results of operations or cash flows. The Company is subject to various other claims and legal proceedings covering a wide range of matters that arose in the ordinary course of business. In the opinion of management, all such matters are adequately covered by insurance or by established reserves, and, if not so covered, are without merit or are of such kind, or involve such amounts, as would not have a material adverse effect on the financial position, results of operations or cash flows of the Company. Insurance liabilities are recorded when it is probable that a liability has been incurred for a particular event and the amount of loss associated with the event can be reasonably estimated. Insurance reserves have been estimated based primarily upon actuarial calculations and reflect the undiscounted estimated liabilities for ultimate losses, including claims incurred but not reported. Inherent in these estimates are assumptions that are based on the Company's history of claims and losses, a detailed analysis of existing claims with respect to potential value, and current legal and legislative trends. If actual claims differ from those projected by management, changes (either increases or decreases) to insurance reserves may be required and would be recorded through income in the period the change was determined. When a recognized liability has been determined to be covered by third-party insurance, the Company records an insurance claim receivable to reflect the covered liability. Insurance claim receivables are included in Other receivables on the Company's Condensed Consolidated Balance Sheets. See Note 1, Summary of Significant Accounting Policies, to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021 for additional information on Accrued insurance and loss reserves.

Reconciliation of Basic and Dil

Reconciliation of Basic and Diluted Shares	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Reconciliation of Basic and Diluted Shares	Reconciliation of Basic and Diluted Shares Three Months Ended Nine Months Ended September 30 September 30 (In thousands, except per share amounts) 2022 2021 2022 2021 Income (loss) from continuing operations attributable to Harsco Corporation common stockholders $ 625 $ 5,040 $ (113,408) $ 12,015 Weighted-average shares outstanding: Weighted-average shares outstanding - basic 79,531 79,287 79,469 79,214 Dilutive effect of stock-based compensation 36 988 — 1,142 Weighted-average shares outstanding - diluted 79,567 80,275 79,469 80,356 Earnings (loss) from continuing operations per common share, attributable to Harsco Corporation common stockholders: Basic $ 0.01 $ 0.06 $ (1.43) $ 0.15 Diluted $ 0.01 $ 0.06 $ (1.43) $ 0.15 The following average outstanding stock-based compensation units were not included in the computation of diluted earnings per share because the effect was either antidilutive or the market conditions for the performance share units were not met: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Restricted stock units — — 763 — Stock appreciation rights 2,062 842 2,304 719 Performance share units 1,052 1,004 1,135 902

Derivative Instruments, Hedging

Derivative Instruments, Hedging Activities and Fair Value	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments, Hedging Activities and Fair Value	Derivative Instruments, Hedging Activities and Fair Value Derivative Instruments and Hedging Activities The Company uses derivative instruments, including foreign currency exchange forward contracts and interest rate swaps to manage certain foreign currency and interest rate exposures. Derivative instruments are viewed as risk management tools by the Company and are not used for trading or speculative purposes. All derivative instruments are recorded on the Company's Condensed Consolidated Balance Sheets at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risks, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. The Company primarily applies the market approach for recurring fair value measurements and endeavors to utilize the best available information. Accordingly, the Company utilizes valuation techniques that maximize the use of observable inputs, such as forward rates, interest rates, the Company’s credit risk and counterparties’ credit risks, and which minimize the use of unobservable inputs. The Company is able to classify fair value balances based on the ability to observe those inputs. Foreign currency exchange forward contracts and interest rate swaps are based upon pricing models using market-based inputs (Level 2). Model inputs can be verified and valuation techniques do not involve significant management judgment. The fair value of outstanding derivative contracts recorded as assets and liabilities on the Company's Condensed Consolidated Balance Sheets was as follows: (In thousands) Balance Sheet Location Fair Value of Derivatives Designated as Hedging Instruments Fair Value of Derivatives Not Designated as Hedging Instruments Total Fair Value September 30, 2022 Asset derivatives (Level 2): Foreign currency exchange forward contracts Other current assets $ 3,653 $ 27,131 $ 30,784 Interest rate swaps Other current assets 269 — 269 Total $ 3,922 $ 27,131 $ 31,053 Liability derivatives (Level 2): Foreign currency exchange forward contracts Other current liabilities $ 931 $ 1,366 $ 2,297 Total $ 931 $ 1,366 $ 2,297 December 31, 2021 Asset derivatives (Level 2): Foreign currency exchange forward contracts Other current assets $ 719 $ 1,405 $ 2,124 Total $ 719 $ 1,405 $ 2,124 Liability derivatives (Level 2): Foreign currency exchange forward contracts Other current liabilities $ 560 $ 2,905 $ 3,465 Interest rate swaps Other current liabilities 4,157 — 4,157 Total $ 4,717 $ 2,905 $ 7,622 All of the Company's derivatives are recorded on the Condensed Consolidated Balance Sheets at gross amounts and do not offset. All of the Company's interest rate swaps and certain foreign currency exchange forward contracts are transacted under ISDA documentation. Each ISDA master agreement permits the net settlement of amounts owed in the event of default. The Company's derivative assets and liabilities subject to enforceable master netting arrangements, if offset, would have resulted in a net asset of $0.6 million and a net liability of $0.9 million at September 30, 2022 and December 31, 2021, respectively. The effect of derivative instruments on the Company's Condensed Consolidated Statements of Comprehensive Income (Loss) was as follows: Derivatives Designated as Hedging Instruments Amount Recognized in Amount Reclassified from Three Months Ended Three Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Foreign currency exchange forward contracts $ 1,517 $ 611 $ (1,101) $ (418) Interest rate swaps — (27) 1,073 872 $ 1,517 $ 584 $ (28) $ 454 Amount Recognized in Amount Reclassified from Nine Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Foreign currency exchange forward contracts $ 3,483 $ 170 $ (2,687) $ (465) Interest rate swaps — (41) 3,184 2,599 $ 3,483 $ 129 $ 497 $ 2,134 The location and amount of gain (loss) recognized on the Company's Condensed Consolidated Statements of Operations was as follows: Three Months Ended September 30 2022 2021 (In thousands) Interest Expense Income (Loss) from Discontinued Businesses Interest Expense Income (Loss) from Discontinued Businesses Total amounts in the Condensed Consolidated Statement of Operations in which the effects of derivatives designated as hedging instruments are recorded $ (19,751) $ 1,993 $ (15,741) $ 1,301 Interest rate swaps: Gain or (loss) reclassified from AOCI into income (1,073) — (872) — Amount recognized in earnings due to ineffectiveness 238 — — — Foreign exchange contracts: Gain or (loss) reclassified from AOCI into income — 1,101 — 418 Nine Months Ended September 30 2022 2021 (In thousands) Interest Expense Income (Loss) from Discontinued Businesses Interest Expense Income (Loss) from Discontinued Businesses Total amounts in the Condensed Consolidated Statement of Operations in which the effects of derivatives designated as hedging instruments are recorded $ (51,535) $ (35,225) $ (47,640) $ 12,904 Interest rate swaps: Gain or (loss) reclassified from AOCI into income (3,184) — (2,599) — Amount recognized in earnings due to ineffectiveness 1,850 — — — Foreign exchange contracts: Gain or (loss) reclassified from AOCI into income — 2,687 — 465 Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives (a) Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Foreign currency exchange forward contracts Cost of services and products sold $ 18,764 $ 4,105 $ 40,836 $ 8,109 (a) These gains (losses) offset amounts recognized in cost of services and products sold principally as a result of intercompany or third party foreign currency exposures. Foreign Currency Exchange Forward Contracts The Company conducts business in multiple currencies and, accordingly, is subject to the inherent risks associated with foreign exchange rate movements. Foreign currency-denominated assets and liabilities are translated into U.S. dollars at the exchange rates existing at the respective consolidated balance sheet dates, and income and expense items are translated at the average exchange rates during the respective periods. The Company uses derivative instruments to hedge cash flows related to foreign currency fluctuations. Foreign currency exchange forward contracts outstanding are part of a worldwide program to minimize foreign currency exchange operating income and balance sheet exposure by offsetting foreign currency exposures of certain future payments between the Company and various subsidiaries, suppliers or customers. The unsecured contracts are with major financial institutions. The Company may be exposed to credit loss in the event of non-performance by the contract counterparties. The Company evaluates the creditworthiness of the counterparties and does not expect default by them. Foreign currency exchange forward contracts are used to hedge commitments, such as foreign currency debt, firm purchase commitments and foreign currency cash flows for certain export sales transactions. Changes in the fair value of derivatives used to hedge foreign currency denominated balance sheet items are reported directly in earnings, along with offsetting transaction gains and losses on the items being hedged. Derivatives used to hedge forecasted cash flows associated with foreign currency commitments may be accounted for as cash flow hedges, as deemed appropriate, if the criteria for hedge accounting are met. Gains and losses on derivatives designated as cash flow hedges are deferred in AOCI, a separate component of equity, and reclassified to earnings in a manner that matches the timing of the earnings impact of the hedged transactions. The ineffective portion of all hedges, if any, is recognized currently in earnings. The recognized gains and losses offset amounts recognized in cost of services and products sold principally as a result of intercompany or third-party foreign currency exposures. At September 30, 2022 and December 31, 2021 the notional amounts of foreign currency exchange forward contracts were $458.2 million and $425.8 million, respectively. These contracts are primarily denominated in British Pound Sterling and Euros and mature through September 2023. In addition to foreign currency exchange forward contracts, the Company designates certain loans as hedges of net investments in international subsidiaries. The Company recorded pre-tax net losses of $1.0 million and $2.2 million for the three and nine months ended September 30, 2022, respectively, and pre-tax net losses of $3.7 million and $0.1 million for the three and nine months ended September 30, 2021, respectively, in AOCI. Interest Rate Swaps The Company uses interest rate swaps in conjunction with certain variable rate debt issuances in order to secure a fixed interest rate. Changes in the fair value attributed to the effect of the swaps’ interest spread and changes in the credit worthiness of the counter-parties are recorded in AOCI and are reclassified into income as interest payments are made. At September 30, 2022, the Company had a series of interest rate swaps that are in effect through 2022 and have the effect of converting $200.0 million of the Term Loan Facility from floating-rate to fixed-rate. The fixed rates provided by the swaps replace the adjusted LIBOR rate in the interest calculation to 3.12% for 2022. In the fourth quarter of 2021, the interest rate swaps were deemed ineffective and, thus, the subsequent changes in fair value continue to be recorded in earnings in the current period. The amounts previously recorded in AOCI will continue to be amortized into earnings over the remaining maturity of the interest rate swap. Fair Value of Other Financial Instruments

Review of Operations by Segment

Review of Operations by Segment	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Review of Operations by Segment	Review of Operations by Segment Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Revenues From Continuing Operations Harsco Environmental $ 264,717 $ 269,901 $ 804,367 $ 800,433 Harsco Clean Earth 222,197 200,484 616,396 585,891 Total Revenues From Continuing Operations $ 486,914 $ 470,385 $ 1,420,763 $ 1,386,324 Operating Income (Loss) From Continuing Operations Harsco Environmental $ 22,117 $ 27,630 $ 63,931 $ 83,788 Harsco Clean Earth 17,315 9,893 (95,650) 20,457 Corporate (9,309) (10,602) (27,413) (31,941) Total Operating Income (Loss) From Continuing Operations $ 30,123 $ 26,921 $ (59,132) $ 72,304 Depreciation Harsco Environmental $ 26,772 $ 27,179 $ 82,311 $ 78,446 Harsco Clean Earth 4,576 4,576 14,213 14,818 Corporate 544 491 1,435 1,468 Total Depreciation $ 31,892 $ 32,246 $ 97,959 $ 94,732 Amortization Harsco Environmental $ 1,619 $ 1,997 $ 5,161 $ 6,080 Harsco Clean Earth 6,071 6,033 18,277 18,179 Corporate (a) 848 657 2,167 2,041 Total Amortization $ 8,538 $ 8,687 $ 25,605 $ 26,300 Capital Expenditures Harsco Environmental $ 31,688 $ 34,218 $ 80,063 $ 94,630 Harsco Clean Earth 6,331 5,707 16,577 12,962 Corporate 1,373 407 3,511 586 Total Capital Expenditures $ 39,392 $ 40,332 $ 100,151 $ 108,178 (a) Amortization expense on Corporate relates to the amortization of deferred financing costs. Reconciliation of Segment Operating Income to Income (Loss) From Continuing Operations Before Income Taxes and Equity Income Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Segment operating income (loss) $ 39,432 $ 37,523 $ (31,719) $ 104,245 General Corporate expense (9,309) (10,602) (27,413) (31,941) Operating income (loss) from continuing operations 30,123 26,921 (59,132) 72,304 Interest income 952 544 2,289 1,668 Interest expense (19,751) (15,741) (51,535) (47,640) Facility fees and debt-related income (expense) (2,511) (198) (894) (5,506) Defined benefit pension income 2,118 3,887 6,775 11,777 Income (loss) from continuing operations before income taxes and equity income $ 10,931 $ 15,413 $ (102,497) $ 32,603

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue RecognitionThe Company recognizes revenues to depict the transfer of promised services and products to customers in an amount that reflects the consideration the Company expects to receive in exchange for those services or products. Service revenues include the Harsco Clean Earth Segment revenue and the service components of the Harsco Environmental Segment. Product revenues include portions of the Harsco Environmental Segment. A summary of the Company's revenues by primary geographical markets as well as by key product and service groups is as follows: Three Months Ended September 30, 2022 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 75,229 $ 222,197 $ 297,426 Western Europe 92,757 — 92,757 Latin America (b) 40,574 — 40,574 Asia-Pacific 31,402 — 31,402 Middle East and Africa 20,195 — 20,195 Eastern Europe 4,560 — 4,560 Total Revenues $ 264,717 $ 222,197 $ 486,914 Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 220,578 $ — $ 220,578 Ecoproducts 40,274 — 40,274 Environmental systems for aluminum dross and scrap processing 3,865 — 3,865 Waste processing, recycling, reuse and transportation solutions — 222,197 222,197 Total Revenues $ 264,717 $ 222,197 $ 486,914 Three Months Ended September 30, 2021 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 71,479 $ 200,484 $ 271,963 Western Europe 106,859 — 106,859 Latin America (b) 35,072 — 35,072 Asia-Pacific 30,228 — 30,228 Middle East and Africa 20,804 — 20,804 Eastern Europe 5,459 — 5,459 Total Revenues $ 269,901 $ 200,484 $ 470,385 Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 230,340 $ — $ 230,340 Ecoproducts 36,091 — 36,091 Environmental systems for aluminum dross and scrap processing 3,470 — 3,470 Waste processing, recycling, reuse and transportation solutions — 200,484 200,484 Total Revenues $ 269,901 $ 200,484 $ 470,385 Nine Months Ended September 30, 2022 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 227,017 $ 616,396 $ 843,413 Western Europe 294,427 — 294,427 Latin America (b) 115,581 — 115,581 Asia-Pacific 91,420 — 91,420 Middle East and Africa 60,843 — 60,843 Eastern Europe 15,079 — 15,079 Total Revenues $ 804,367 $ 616,396 $ 1,420,763 Nine Months Ended September 30, 2022 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 684,432 $ — $ 684,432 Ecoproducts 110,322 — 110,322 Environmental systems for aluminum dross and scrap processing 9,613 — 9,613 Waste processing, recycling, reuse and transportation solutions — 616,396 616,396 Total Revenues $ 804,367 $ 616,396 $ 1,420,763 Nine Months Ended September 30, 2021 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 208,395 $ 585,891 $ 794,286 Western Europe 336,011 — 336,011 Latin America (b) 99,524 — 99,524 Asia-Pacific 80,520 — 80,520 Middle East and Africa 60,798 — 60,798 Eastern Europe 15,185 — 15,185 Total Revenues $ 800,433 $ 585,891 $ 1,386,324 Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 688,923 $ — $ 688,923 Ecoproducts 100,706 — 100,706 Environmental systems for aluminum dross and scrap processing 10,804 — 10,804 Waste processing, recycling, reuse and transportation solutions — 585,891 585,891 Total Revenues $ 800,433 $ 585,891 $ 1,386,324 (a) Revenues are attributed to individual countries based on the location of the facility generating the revenue. (b) Includes Mexico. The Company may receive payments in advance of earning revenue (advances on contracts), which is included in Other current liabilities and Other liabilities on the Condensed Consolidated Balance Sheets. The Company may recognize revenue in advance of being able to contractually invoice the customer (contract assets), which is included in Other current assets on the Condensed Consolidated Balance Sheets. Contract assets are transferred to Trade accounts receivable, net, when the right to payment becomes unconditional. Contract assets and advances on contracts are reported as a net position, on a contract-by-contract basis, at the end of each reporting period. The Company had contract assets totaling $3.5 million and $3.1 million at September 30, 2022 and December 31, 2021, respectively. The increase is due principally to additional contract assets recognized in excess of the transfer of contract assets to accounts receivable. The Company had advances on contracts totaling $3.7 million and $4.1 million at September 30, 2022 and December 31, 2021, respectively. During the three and nine months ended September 30, 2022, the Company recognized approximately $4 million and $14 million, respectively, of revenue related to amounts previously included in advances on contracts. During the three and nine months ended September 30, 2021, the Company recognized approximately $6 million and $12 million, respectively, of revenue related to amounts previously included in advances on contracts.

Other (Income) Expenses, Net

Other (Income) Expenses, Net	9 Months Ended
	Sep. 30, 2022
Other Income and Expenses [Abstract]
Other (Income) Expenses, Net	Other (Income) Expenses, Net The major components of this Condensed Consolidated Statements of Operations caption were as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Employee termination benefit costs $ 1,412 $ (65) $ 1,707 $ 1,102 Other costs to exit activities 239 (27) 1,299 611 Impaired asset write-downs 4 41 359 203 Net gains (1,077) (1,575) (2,981) (8,622) Other (929) (1,209) 131 (1,287) Other (income) expenses, net $ (351) $ (2,835) $ 515 $ (7,993)

Components of Accumulated Other

Components of Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Components of Accumulated Other Comprehensive Loss	Components of Accumulated Other Comprehensive Loss AOCI is included on the Condensed Consolidated Statements of Stockholders' Equity. The components of AOCI, net of the effect of income taxes, and activity for the nine months ended September 30, 2021 and 2022 was as follows: Components of AOCI, Net of Tax (In thousands) Cumulative Foreign Exchange Translation Adjustments Effective Portion of Derivatives Designated as Hedging Instruments Cumulative Unrecognized Actuarial Losses on Pension Obligations Unrealized Gain (Loss) on Marketable Securities Total Balance at December 31, 2020 $ (125,392) $ (5,840) $ (514,500) $ (9) $ (645,741) OCI before reclassifications (15,437) (a) 257 (b) 6,628 (a) 25 (8,527) Amounts reclassified from AOCI, net of tax — 1,488 17,184 — 18,672 Total OCI (15,437) 1,745 23,812 25 10,145 Less: OCI attributable to noncontrolling interests (837) — — — (837) OCI attributable to Harsco Corporation (14,600) 1,745 23,812 25 10,982 Balance at September 30, 2021 $ (139,992) $ (4,095) $ (490,688) $ 16 $ (634,759) Components of AOCI, Net of Tax (In thousands) Cumulative Foreign Exchange Translation Adjustments Effective Portion of Derivatives Designated as Hedging Instruments Cumulative Unrecognized Actuarial Losses on Pension Obligations Unrealized Gain (Loss) on Marketable Securities Total Balance at December 31, 2021 $ (134,889) $ (3,024) $ (422,248) $ 22 $ (560,139) OCI before reclassifications (116,407) (a) 2,971 (b) 57,768 (a) (20) (55,688) Amounts reclassified from AOCI, net of tax — 32 12,923 — 12,955 Total OCI (116,407) 3,003 70,691 (20) (42,733) Less: OCI attributable to noncontrolling interests (6,108) — — — (6,108) OCI attributable to Harsco Corporation (110,299) 3,003 70,691 (20) (36,625) Balance at September 30, 2022 $ (245,188) $ (21) $ (351,557) $ 2 $ (596,764) (a) Principally foreign currency fluctuation. (b) Net change from periodic revaluations. Amounts reclassified from AOCI were as follows: (In thousands) Three Months Ended Nine Months Ended Location on the Condensed Consolidated Statements of Operations September 30 September 30 2022 2021 2022 2021 Amortization of cash flow hedging instruments: Foreign currency exchange forward contracts $ (1,101) $ (418) $ (2,687) $ (465) Income (loss) from discontinued businesses Interest rate swaps 1,073 872 3,184 2,599 Interest expense Total before taxes (28) 454 497 2,134 Income taxes (108) (148) (465) (646) Total reclassification of cash flow hedging instruments, net of tax $ (136) $ 306 $ 32 $ 1,488 Amortization of defined benefit pension items (c) : Actuarial losses $ 4,298 $ 5,922 $ 13,521 $ 17,877 Defined benefit pension income Prior service costs 107 125 340 381 Defined benefit pension income Total before taxes 4,405 6,047 13,861 18,258 Income taxes (313) (358) (938) (1,074) Total reclassification of defined benefit pension items, net of tax $ 4,092 $ 5,689 $ 12,923 $ 17,184 (c) These AOCI components are included in the computation of net periodic pension costs. See Note 10, Employee Benefit Plans, for additional details.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of PresentationThe Company has prepared these unaudited condensed consolidated financial statements in accordance with U.S. GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the SEC. Accordingly, the unaudited condensed consolidated financial statements do not include all information and disclosure required by U.S. GAAP for annual financial statements. The December 31, 2021 Condensed Consolidated Balance Sheet information contained in this Quarterly Report on Form 10-Q was derived from the 2021 audited consolidated financial statements.  These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements, including the notes thereto, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. In the opinion of management, all adjustments (all of which are of a normal recurring nature) that are necessary for a fair statement are reflected in these unaudited condensed consolidated financial statements.
Reclassifications	Reclassifications Certain reclassifications have been made to prior year amounts to conform with current year classifications.
Recently Adopted and Recently Issued Accounting Standards	Recently Adopted and Recently Issued Accounting Standards The following accounting standards have been adopted in 2022: On January 1, 2022, the Company adopted changes issued by the FASB which simplified the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity's own equity. The adoption of these changes did not have a material impact on the Company's condensed consolidated financial statements. On January 1, 2022, the Company adopted changes issued by the FASB which improve the transparency of government assistance received by entities. Other than expanded annual disclosures, the adoption of these changes did not have a material impact on the Company's consolidated financial statements. The following accounting standards have been issued and become effective for the Company at a future date: In March 2020 and January 2021, the FASB issued changes that, together, provide companies with optional guidance to ease the potential accounting burden associated with transitioning from reference rates that are expected to be discontinued. In response to the concerns about risks of alternative reference rates and, particularly, the risk of cessation of LIBOR, regulators in several jurisdictions around the world have undertaken reference rate reform initiatives to identify alternative reference rates that are more observable or transaction-based and less susceptible to manipulation. The changes provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The changes can be adopted no later than December 31, 2022. The Company has identified financial instruments linked to LIBOR and intends to transition to alternative reference rates by December 31, 2022. The adoption of the applicable provisions will coincide with the modifications of the affected financial instruments. The transition from LIBOR is not expected to have a material impact on the Company.

Dispositions (Tables)

Dispositions (Tables)	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Balance sheet positions and financial information included in net income from discontinued operations and statements of cash flows	The former Harsco Rail Segment's balance sheet positions as of September 30, 2022 and December 31, 2021 are presented as Assets held-for-sale and Liabilities of assets held-for-sale in the Condensed Consolidated Balance Sheets and are summarized as follows: (in thousands) September 30 December 31 Trade accounts receivable, net $ 44,677 $ 33,689 Other receivables 4,304 4,740 Inventories 97,552 103,560 Current portion of contract assets 87,199 94,597 Other current assets 27,961 25,442 Property, plant and equipment, net 40,012 39,524 Right-of-use assets, net 1,903 3,108 Goodwill 13,026 13,026 Intangible assets, net 2,786 3,081 Deferred income tax assets 4,993 6,064 Other assets 1,144 6,432 Total Rail assets included in Assets held-for-sale $ 325,557 $ 333,263 Accounts payable $ 35,794 $ 46,076 Accrued compensation 3,420 2,171 Current portion of operating lease liabilities 990 1,619 Current portion of advances on contracts 50,536 62,401 Other current liabilities 66,492 49,732 Operating lease liabilities 997 1,775 Deferred tax liabilities 5,571 5,736 Other liabilities 868 981 Total Rail liabilities included in Liabilities of assets held-for-sale $ 164,668 $ 170,491 Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Amounts directly attributable to the former Harsco Rail Segment: Service revenues $ 8,629 $ 7,800 $ 22,827 $ 24,990 Product revenues (a) 60,386 66,115 169,778 231,661 Cost of services sold 6,559 4,193 15,823 12,373 Cost of products sold 49,789 54,830 176,210 189,288 Income (loss) from discontinued businesses 3,964 2,829 (26,768) 17,674 Additional amounts allocated to the former Harsco Rail Segment: Selling, general and administrative expenses (b) $ 376 $ — $ 3,887 $ — (a) The decrease in product revenues for the nine months ended September 30, 2022 as compared to the nine months ended September 30, 2021 is due in part to liquidated damages and penalties on certain long-term contracts, as discussed below. (b) The Company has allocated directly attributable transaction costs to discontinued operations. The following is selected financial information included on the Condensed Consolidated Statements of Cash Flows attributable to the former Harsco Rail Segment: Nine Months Ended September 30 (In thousands) 2022 2021 Non-cash operating items Depreciation and amortization $ — $ 3,905 Cash flows from investing activities Purchases of property, plant and equipment 1,494 1,329

Accounts Receivable and Note _2

Accounts Receivable and Note Receivable (Tables)	9 Months Ended
	Sep. 30, 2022
Receivables [Abstract]
Schedule of accounts receivable	Accounts receivable consist of the following: September 30, 2022 December 31 2021 (a) Trade accounts receivable $ 278,876 $ 389,535 Less: Allowance for expected credit losses (8,986) (11,654) Trade accounts receivable, net $ 269,890 $ 377,881 Other receivables (b) $ 26,307 $ 33,059 (a) The December 31, 2021 amounts for trade accounts receivable and allowance for expected credit losses have been revised from the presentation in the Company's 2021 10-K. This revision did not impact trade accounts receivable, net. (b) Other receivables include employee receivables, insurance receivable, tax claims and refunds and other miscellaneous items not included in Trade accounts receivable, net. (In thousands) September 30 December 31 Note receivable, at amortized cost $ 23,556 $ 31,025 Note receivable, fair value 23,300 32,300
Schedule of provision for doubtful accounts related to trade accounts receivable	The provision for expected credit losses related to trade accounts receivable was as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Provision for expected credit losses related to trade accounts receivable $ (340) $ (146) $ (283) $ 582

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2022
Inventory Disclosure [Abstract]
Schedule of inventories	Inventories consist of the following: (In thousands) September 30 December 31 Finished goods $ 9,714 $ 8,323 Work-in-process 4,109 5,393 Raw materials and purchased parts 27,065 21,188 Stores and supplies 39,826 35,589 Total inventories $ 80,714 $ 70,493

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
	Sep. 30, 2022
Property, Plant and Equipment [Abstract]
Schedule of property, plant and equipment	Property, plant and equipment consist of the following: (In thousands) September 30 December 31 Land $ 72,593 $ 73,067 Land improvements 16,404 16,970 Buildings and improvements 212,157 221,236 Machinery and equipment 1,441,669 1,507,214 Uncompleted construction 73,645 63,816 Gross property, plant and equipment 1,816,468 1,882,303 Less: Accumulated depreciation (1,186,573) (1,228,390) Property, plant and equipment, net $ 629,895 $ 653,913

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Components of lease expense	The components of lease expense were as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Finance leases: Amortization expense $ 940 $ 743 $ 2,897 $ 1,692 Interest on lease liabilities 198 129 563 340 Operating leases 8,604 8,133 25,105 23,961 Variable and short-term lease expense 11,958 12,279 37,287 37,405 Sublease income (2) (1) (5) (52) Total lease expense from continuing operations $ 21,698 $ 21,283 $ 65,847 $ 63,346

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of changes in carrying amounts of goodwill by segment	The following table reflects the changes in carrying amounts of goodwill by segment for the nine months ended September 30, 2022: (In thousands) Harsco Environmental Harsco Consolidated Balance at December 31, 2021 $ 399,230 $ 483,879 $ 883,109 Goodwill impairment — (104,580) (104,580) Foreign currency translation (33,749) — (33,749) Balance at September 30, 2022 $ 365,481 $ 379,299 $ 744,780

Debt and Credit Agreements (Tab

Debt and Credit Agreements (Tables)	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Schedule of long-term debt instruments	Long-term debt consists of the following: (In thousands) September 30 December 31 Senior Secured Credit Facilities: New Term Loan $ 493,750 $ 497,500 Revolving Credit Facility 353,000 362,000 5.75% Senior Notes 475,000 500,000 Other financing payable (including finance leases) in varying amounts 25,836 28,389 Total debt obligations 1,347,586 1,387,889 Less: deferred financing costs (15,884) (18,217) Total debt obligations, net of deferred financing costs 1,331,702 1,369,672 Less: current maturities of long-term debt (16,784) (10,226) Long-term debt $ 1,314,918 $ 1,359,446
Schedule of facility fees and debt-related income (expense)	The components of the Condensed Consolidated Statements of Operations caption Facility fees and debt-related income (expense) were as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Gain (loss) on extinguishment of debt $ — $ — $ 2,254 $ (2,668) Unused debt commitment and amendment fees (1,097) (198) (1,635) (2,838) Securitization and factoring fees (1,414) — (1,513) — Facility fees and debt-related income (expense) $ (2,511) $ (198) $ (894) $ (5,506)

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2022
Retirement Benefits [Abstract]
Schedule of net benefit costs	Three Months Ended September 30 Defined Benefit Pension Plan Net Periodic Pension Cost (Benefit) U.S. Plans International Plans (In thousands) 2022 2021 2022 2021 Service costs $ — $ — $ 400 $ 463 Interest costs 1,429 1,203 3,887 3,194 Expected return on plan assets (2,699) (3,050) (9,145) (11,358) Recognized prior service costs — — 107 127 Recognized actuarial losses 1,183 1,384 3,115 4,573 Defined benefit pension plan net periodic pension cost (benefit) $ (87) $ (463) $ (1,636) $ (3,001) Nine Months Ended September 30 Defined Benefit Pension Plans Net Periodic Pension Cost (Benefit) U.S. Plans International Plans (In thousands) 2022 2021 2022 2021 Service costs $ — $ — $ 1,250 $ 1,391 Interest costs 4,287 3,609 12,409 9,576 Expected return on plan assets (8,096) (9,150) (29,250) (34,080) Recognized prior service costs — — 340 381 Recognized actuarial losses 3,549 4,154 9,972 13,722 Defined benefit pension plans net periodic pension cost (benefit) $ (260) $ (1,387) $ (5,279) $ (9,010)
Schedule of contributions to pension plans	Three Months Ended Nine Months Ended Company Contributions September 30 September 30 (In thousands) 2022 2021 2022 2021 Defined benefit pension plans (U.S.) $ 426 $ 451 $ 1,313 $ 3,768 Defined benefit pension plans (International) 3,824 4,549 19,411 21,472 Multiemployer pension plans 446 429 1,381 1,311 Defined contribution pension plans 3,019 2,936 9,948 9,366

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Schedule of Loss Contingencies by Contingency	The following table summarizes information related to the location and undiscounted amount of the Company's environmental liabilities: (In thousands) September 30 December 31 Current portion of environmental liabilities (a) $ 8,491 $ 7,338 Long-term environmental liabilities 26,678 28,435 Total environmental liabilities $ 35,169 $ 35,773 (a) The current portion of environmental liabilities is included in the caption Other current liabilities on the Condensed Consolidated Balance Sheets.

Reconciliation of Basic and D_2

Reconciliation of Basic and Diluted Shares (Tables)	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Reconciliation of basic and diluted shares	Three Months Ended Nine Months Ended September 30 September 30 (In thousands, except per share amounts) 2022 2021 2022 2021 Income (loss) from continuing operations attributable to Harsco Corporation common stockholders $ 625 $ 5,040 $ (113,408) $ 12,015 Weighted-average shares outstanding: Weighted-average shares outstanding - basic 79,531 79,287 79,469 79,214 Dilutive effect of stock-based compensation 36 988 — 1,142 Weighted-average shares outstanding - diluted 79,567 80,275 79,469 80,356 Earnings (loss) from continuing operations per common share, attributable to Harsco Corporation common stockholders: Basic $ 0.01 $ 0.06 $ (1.43) $ 0.15 Diluted $ 0.01 $ 0.06 $ (1.43) $ 0.15
Schedule of antidilutive securities excluded from computation of earnings per share	The following average outstanding stock-based compensation units were not included in the computation of diluted earnings per share because the effect was either antidilutive or the market conditions for the performance share units were not met: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Restricted stock units — — 763 — Stock appreciation rights 2,062 842 2,304 719 Performance share units 1,052 1,004 1,135 902

Derivative Instruments, Hedgi_2

Derivative Instruments, Hedging Activities and Fair Value (Tables)	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of fair value of outstanding derivative contracts	The fair value of outstanding derivative contracts recorded as assets and liabilities on the Company's Condensed Consolidated Balance Sheets was as follows: (In thousands) Balance Sheet Location Fair Value of Derivatives Designated as Hedging Instruments Fair Value of Derivatives Not Designated as Hedging Instruments Total Fair Value September 30, 2022 Asset derivatives (Level 2): Foreign currency exchange forward contracts Other current assets $ 3,653 $ 27,131 $ 30,784 Interest rate swaps Other current assets 269 — 269 Total $ 3,922 $ 27,131 $ 31,053 Liability derivatives (Level 2): Foreign currency exchange forward contracts Other current liabilities $ 931 $ 1,366 $ 2,297 Total $ 931 $ 1,366 $ 2,297 December 31, 2021 Asset derivatives (Level 2): Foreign currency exchange forward contracts Other current assets $ 719 $ 1,405 $ 2,124 Total $ 719 $ 1,405 $ 2,124 Liability derivatives (Level 2): Foreign currency exchange forward contracts Other current liabilities $ 560 $ 2,905 $ 3,465 Interest rate swaps Other current liabilities 4,157 — 4,157 Total $ 4,717 $ 2,905 $ 7,622
Schedule of effect of derivative instruments	The effect of derivative instruments on the Company's Condensed Consolidated Statements of Comprehensive Income (Loss) was as follows: Derivatives Designated as Hedging Instruments Amount Recognized in Amount Reclassified from Three Months Ended Three Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Foreign currency exchange forward contracts $ 1,517 $ 611 $ (1,101) $ (418) Interest rate swaps — (27) 1,073 872 $ 1,517 $ 584 $ (28) $ 454 Amount Recognized in Amount Reclassified from Nine Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Foreign currency exchange forward contracts $ 3,483 $ 170 $ (2,687) $ (465) Interest rate swaps — (41) 3,184 2,599 $ 3,483 $ 129 $ 497 $ 2,134 The location and amount of gain (loss) recognized on the Company's Condensed Consolidated Statements of Operations was as follows: Three Months Ended September 30 2022 2021 (In thousands) Interest Expense Income (Loss) from Discontinued Businesses Interest Expense Income (Loss) from Discontinued Businesses Total amounts in the Condensed Consolidated Statement of Operations in which the effects of derivatives designated as hedging instruments are recorded $ (19,751) $ 1,993 $ (15,741) $ 1,301 Interest rate swaps: Gain or (loss) reclassified from AOCI into income (1,073) — (872) — Amount recognized in earnings due to ineffectiveness 238 — — — Foreign exchange contracts: Gain or (loss) reclassified from AOCI into income — 1,101 — 418 Nine Months Ended September 30 2022 2021 (In thousands) Interest Expense Income (Loss) from Discontinued Businesses Interest Expense Income (Loss) from Discontinued Businesses Total amounts in the Condensed Consolidated Statement of Operations in which the effects of derivatives designated as hedging instruments are recorded $ (51,535) $ (35,225) $ (47,640) $ 12,904 Interest rate swaps: Gain or (loss) reclassified from AOCI into income (3,184) — (2,599) — Amount recognized in earnings due to ineffectiveness 1,850 — — — Foreign exchange contracts: Gain or (loss) reclassified from AOCI into income — 2,687 — 465 Derivatives Not Designated as Hedging Instruments Location of Gain (Loss) Recognized in Income on Derivatives Amount of Gain (Loss) Recognized in Income on Derivatives (a) Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Foreign currency exchange forward contracts Cost of services and products sold $ 18,764 $ 4,105 $ 40,836 $ 8,109 (a) These gains (losses) offset amounts recognized in cost of services and products sold principally as a result of intercompany or third party foreign currency exposures.

Review of Operations by Segme_2

Review of Operations by Segment (Tables)	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Schedule of operations by segment	Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Revenues From Continuing Operations Harsco Environmental $ 264,717 $ 269,901 $ 804,367 $ 800,433 Harsco Clean Earth 222,197 200,484 616,396 585,891 Total Revenues From Continuing Operations $ 486,914 $ 470,385 $ 1,420,763 $ 1,386,324 Operating Income (Loss) From Continuing Operations Harsco Environmental $ 22,117 $ 27,630 $ 63,931 $ 83,788 Harsco Clean Earth 17,315 9,893 (95,650) 20,457 Corporate (9,309) (10,602) (27,413) (31,941) Total Operating Income (Loss) From Continuing Operations $ 30,123 $ 26,921 $ (59,132) $ 72,304 Depreciation Harsco Environmental $ 26,772 $ 27,179 $ 82,311 $ 78,446 Harsco Clean Earth 4,576 4,576 14,213 14,818 Corporate 544 491 1,435 1,468 Total Depreciation $ 31,892 $ 32,246 $ 97,959 $ 94,732 Amortization Harsco Environmental $ 1,619 $ 1,997 $ 5,161 $ 6,080 Harsco Clean Earth 6,071 6,033 18,277 18,179 Corporate (a) 848 657 2,167 2,041 Total Amortization $ 8,538 $ 8,687 $ 25,605 $ 26,300 Capital Expenditures Harsco Environmental $ 31,688 $ 34,218 $ 80,063 $ 94,630 Harsco Clean Earth 6,331 5,707 16,577 12,962 Corporate 1,373 407 3,511 586 Total Capital Expenditures $ 39,392 $ 40,332 $ 100,151 $ 108,178 (a) Amortization expense on Corporate relates to the amortization of deferred financing costs.
Reconciliation of segment operating income to income from continuing operations before income taxes and equity income	Reconciliation of Segment Operating Income to Income (Loss) From Continuing Operations Before Income Taxes and Equity Income Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Segment operating income (loss) $ 39,432 $ 37,523 $ (31,719) $ 104,245 General Corporate expense (9,309) (10,602) (27,413) (31,941) Operating income (loss) from continuing operations 30,123 26,921 (59,132) 72,304 Interest income 952 544 2,289 1,668 Interest expense (19,751) (15,741) (51,535) (47,640) Facility fees and debt-related income (expense) (2,511) (198) (894) (5,506) Defined benefit pension income 2,118 3,887 6,775 11,777 Income (loss) from continuing operations before income taxes and equity income $ 10,931 $ 15,413 $ (102,497) $ 32,603

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Summary of revenues by primary geographical markets	A summary of the Company's revenues by primary geographical markets as well as by key product and service groups is as follows: Three Months Ended September 30, 2022 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 75,229 $ 222,197 $ 297,426 Western Europe 92,757 — 92,757 Latin America (b) 40,574 — 40,574 Asia-Pacific 31,402 — 31,402 Middle East and Africa 20,195 — 20,195 Eastern Europe 4,560 — 4,560 Total Revenues $ 264,717 $ 222,197 $ 486,914 Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 220,578 $ — $ 220,578 Ecoproducts 40,274 — 40,274 Environmental systems for aluminum dross and scrap processing 3,865 — 3,865 Waste processing, recycling, reuse and transportation solutions — 222,197 222,197 Total Revenues $ 264,717 $ 222,197 $ 486,914 Three Months Ended September 30, 2021 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 71,479 $ 200,484 $ 271,963 Western Europe 106,859 — 106,859 Latin America (b) 35,072 — 35,072 Asia-Pacific 30,228 — 30,228 Middle East and Africa 20,804 — 20,804 Eastern Europe 5,459 — 5,459 Total Revenues $ 269,901 $ 200,484 $ 470,385 Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 230,340 $ — $ 230,340 Ecoproducts 36,091 — 36,091 Environmental systems for aluminum dross and scrap processing 3,470 — 3,470 Waste processing, recycling, reuse and transportation solutions — 200,484 200,484 Total Revenues $ 269,901 $ 200,484 $ 470,385 Nine Months Ended September 30, 2022 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 227,017 $ 616,396 $ 843,413 Western Europe 294,427 — 294,427 Latin America (b) 115,581 — 115,581 Asia-Pacific 91,420 — 91,420 Middle East and Africa 60,843 — 60,843 Eastern Europe 15,079 — 15,079 Total Revenues $ 804,367 $ 616,396 $ 1,420,763 Nine Months Ended September 30, 2022 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 684,432 $ — $ 684,432 Ecoproducts 110,322 — 110,322 Environmental systems for aluminum dross and scrap processing 9,613 — 9,613 Waste processing, recycling, reuse and transportation solutions — 616,396 616,396 Total Revenues $ 804,367 $ 616,396 $ 1,420,763 Nine Months Ended September 30, 2021 (In thousands) Harsco Environmental Segment Harsco Consolidated Totals Primary Geographical Markets (a) : North America $ 208,395 $ 585,891 $ 794,286 Western Europe 336,011 — 336,011 Latin America (b) 99,524 — 99,524 Asia-Pacific 80,520 — 80,520 Middle East and Africa 60,798 — 60,798 Eastern Europe 15,185 — 15,185 Total Revenues $ 800,433 $ 585,891 $ 1,386,324 Key Product and Service Groups: Environmental services related to resource recovery for metals manufacturing and related logistical services $ 688,923 $ — $ 688,923 Ecoproducts 100,706 — 100,706 Environmental systems for aluminum dross and scrap processing 10,804 — 10,804 Waste processing, recycling, reuse and transportation solutions — 585,891 585,891 Total Revenues $ 800,433 $ 585,891 $ 1,386,324 (a) Revenues are attributed to individual countries based on the location of the facility generating the revenue. (b) Includes Mexico.

Other (Income) Expenses, Net (T

Other (Income) Expenses, Net (Tables)	9 Months Ended
	Sep. 30, 2022
Other Income and Expenses [Abstract]
Schedule of other (income) expenses	The major components of this Condensed Consolidated Statements of Operations caption were as follows: Three Months Ended Nine Months Ended September 30 September 30 (In thousands) 2022 2021 2022 2021 Employee termination benefit costs $ 1,412 $ (65) $ 1,707 $ 1,102 Other costs to exit activities 239 (27) 1,299 611 Impaired asset write-downs 4 41 359 203 Net gains (1,077) (1,575) (2,981) (8,622) Other (929) (1,209) 131 (1,287) Other (income) expenses, net $ (351) $ (2,835) $ 515 $ (7,993)

Components of Accumulated Oth_2

Components of Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Schedule of accumulated other comprehensive loss	The components of AOCI, net of the effect of income taxes, and activity for the nine months ended September 30, 2021 and 2022 was as follows: Components of AOCI, Net of Tax (In thousands) Cumulative Foreign Exchange Translation Adjustments Effective Portion of Derivatives Designated as Hedging Instruments Cumulative Unrecognized Actuarial Losses on Pension Obligations Unrealized Gain (Loss) on Marketable Securities Total Balance at December 31, 2020 $ (125,392) $ (5,840) $ (514,500) $ (9) $ (645,741) OCI before reclassifications (15,437) (a) 257 (b) 6,628 (a) 25 (8,527) Amounts reclassified from AOCI, net of tax — 1,488 17,184 — 18,672 Total OCI (15,437) 1,745 23,812 25 10,145 Less: OCI attributable to noncontrolling interests (837) — — — (837) OCI attributable to Harsco Corporation (14,600) 1,745 23,812 25 10,982 Balance at September 30, 2021 $ (139,992) $ (4,095) $ (490,688) $ 16 $ (634,759) Components of AOCI, Net of Tax (In thousands) Cumulative Foreign Exchange Translation Adjustments Effective Portion of Derivatives Designated as Hedging Instruments Cumulative Unrecognized Actuarial Losses on Pension Obligations Unrealized Gain (Loss) on Marketable Securities Total Balance at December 31, 2021 $ (134,889) $ (3,024) $ (422,248) $ 22 $ (560,139) OCI before reclassifications (116,407) (a) 2,971 (b) 57,768 (a) (20) (55,688) Amounts reclassified from AOCI, net of tax — 32 12,923 — 12,955 Total OCI (116,407) 3,003 70,691 (20) (42,733) Less: OCI attributable to noncontrolling interests (6,108) — — — (6,108) OCI attributable to Harsco Corporation (110,299) 3,003 70,691 (20) (36,625) Balance at September 30, 2022 $ (245,188) $ (21) $ (351,557) $ 2 $ (596,764) (a) Principally foreign currency fluctuation. (b) Net change from periodic revaluations.
Reclassification out of accumulated other comprehensive income	Amounts reclassified from AOCI were as follows: (In thousands) Three Months Ended Nine Months Ended Location on the Condensed Consolidated Statements of Operations September 30 September 30 2022 2021 2022 2021 Amortization of cash flow hedging instruments: Foreign currency exchange forward contracts $ (1,101) $ (418) $ (2,687) $ (465) Income (loss) from discontinued businesses Interest rate swaps 1,073 872 3,184 2,599 Interest expense Total before taxes (28) 454 497 2,134 Income taxes (108) (148) (465) (646) Total reclassification of cash flow hedging instruments, net of tax $ (136) $ 306 $ 32 $ 1,488 Amortization of defined benefit pension items (c) : Actuarial losses $ 4,298 $ 5,922 $ 13,521 $ 17,877 Defined benefit pension income Prior service costs 107 125 340 381 Defined benefit pension income Total before taxes 4,405 6,047 13,861 18,258 Income taxes (313) (358) (938) (1,074) Total reclassification of defined benefit pension items, net of tax $ 4,092 $ 5,689 $ 12,923 $ 17,184 (c) These AOCI components are included in the computation of net periodic pension costs. See Note 10, Employee Benefit Plans, for additional details.

Basis of Presentation - Narrati

Basis of Presentation - Narrative (Details) $ in Millions	3 Months Ended
	Jun. 30, 2022 USD ($)
Harsco Clean Earth Segment
Reclassification [Line Items]
Revenue from contract with customer, excluding assessed tax, out of period adjustment	$ 2.6

Dispositions - Schedule of Bala

Dispositions - Schedule of Balance Sheet from Disposal of Harsco Rail Segment (Details) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total Rail liabilities included in Liabilities of assets held-for-sale	$ 157,231	$ 161,999
Discontinued Operations, Held-for-sale | Harsco Rail Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Trade accounts receivable, net	44,677	33,689
Other receivables	4,304	4,740
Inventories	97,552	103,560
Current portion of contract assets	87,199	94,597
Other current assets	27,961	25,442
Property, plant and equipment, net	40,012	39,524
Right-of-use assets, net	1,903	3,108
Goodwill	13,026	13,026
Intangible assets, net	2,786	3,081
Deferred income tax assets	4,993	6,064
Other assets	1,144	6,432
Total Rail assets included in Assets held-for-sale	325,557	333,263
Accounts payable	35,794	46,076
Accrued compensation	3,420	2,171
Current portion of operating lease liabilities	990	1,619
Current portion of advances on contracts	50,536	62,401
Other current liabilities	66,492	49,732
Operating lease liabilities	997	1,775
Deferred tax liabilities	5,571	5,736
Other liabilities	868	981
Total Rail liabilities included in Liabilities of assets held-for-sale	$ 164,668	$ 170,491

Dispositions - Schedule of Inco

Dispositions - Schedule of Income (Loss) from Discontinued Operations Harsco Rail (Details) - Discontinued Operations, Held-for-sale - Harsco Rail Segment - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued businesses	$ 3,964	$ 2,829	$ (26,768)	$ 17,674
Selling, general and administrative expenses	376	0	3,887	0
Service revenues
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	8,629	7,800	22,827	24,990
Cost of services and products sold	6,559	4,193	15,823	12,373
Product Revenues
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	60,386	66,115	169,778	231,661
Cost of services and products sold	$ 49,789	$ 54,830	$ 176,210	$ 189,288

Dispositions - Narrative (Detai

Dispositions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Contract estimated forward loss provision			$ 33.4
Network Rail
Business Acquisition [Line Items]
Contract estimated forward loss provision					$ 24.5
Percentage complete	50%				50%
Deutsche Bahn
Business Acquisition [Line Items]
Contract estimated forward loss provision		$ 7.4
Percentage complete	29%				29%
SBB | Contract
Business Acquisition [Line Items]
Contract estimated forward loss provision		$ 3.5
Percentage complete	83%				83%
Discontinued Operations, Held-for-sale | Harsco Rail Segment
Business Acquisition [Line Items]
Corporate overhead expenses	$ 1			$ 1	$ 3.1	$ 3.1

Dispositions - Summary of Cash

Dispositions - Summary of Cash Flow Information from Disposal of Harsco Rail Segment (Details) - Discontinued Operations, Held-for-sale - Harsco Rail Segment - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Depreciation and amortization	$ 0	$ 3,905
Purchases of property, plant and equipment	$ 1,494	$ 1,329

Accounts Receivable and Note _3

Accounts Receivable and Note Receivable - Schedule of Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Receivables [Abstract]
Trade accounts receivable	$ 278,876	$ 389,535
Less: Allowance for expected credit losses	(8,986)	(11,654)
Trade accounts receivable, net	269,890	377,881
Other receivables	$ 26,307	$ 33,059

Accounts Receivable and Note _4

Accounts Receivable and Note Receivable - Schedule of Changes in Provisions For Allowance For Credit Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Receivables [Abstract]
Provision for expected credit losses related to trade accounts receivable	$ (340)	$ (146)	$ (283)	$ 582

Accounts Receivable and Note _5

Accounts Receivable and Note Receivable - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2022	Jun. 24, 2022	Dec. 31, 2021	Jan. 31, 2020	Jan. 01, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 278,876		$ 278,876		$ 389,535
Accounts receivable past due by twelve months or more	3,200		3,200
Capitalized fees related to the securitization facility				$ 1,800
Proceeds from accounts receivable securitization	25,000	$ 120,000	145,000
Trade accounts receivable, net	269,890		269,890		377,881
Accounts receivable under factoring arrangement, program capacity	28,800		28,800		16,500
Note receivable, face value						$ 40,000
Note receivable, interest rate						2.50%
Note receivable, initial fair value						$ 34,300
Proceeds from sale of notes receivable, excess cash flow		$ 8,600	8,600
Harsco Industrial IKG | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Selling price							$ 85,000
Accounts Receivable Under Factoring Arrangement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable, net	15,700		15,700		$ 12,900
PNC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable securitization, maximum purchase commitment				$ 150,000
Total outstanding trade receivables sold and derecognized	145,000		145,000
Accounts receivable from securitization	86,500		86,500
Greater than 12 months
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 7,400		$ 7,400

Accounts Receivable and Note _6

Accounts Receivable and Note Receivable - Schedule of Fair Value of Notes Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Receivables [Abstract]
Note receivable, at amortized cost	$ 23,556	$ 31,025
Note receivable, fair value	$ 23,300	$ 32,300

Inventories - Schedule of Inven

Inventories - Schedule of Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Finished goods	$ 9,714	$ 8,323
Work-in-process	4,109	5,393
Raw materials and purchased parts	27,065	21,188
Stores and supplies	39,826	35,589
Total inventories	$ 80,714	$ 70,493

Property, Plant and Equipment -

Property, Plant and Equipment - Components (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment
Gross property, plant and equipment	$ 1,816,468	$ 1,882,303
Less: Accumulated depreciation	(1,186,573)	(1,228,390)
Property, plant and equipment, net	629,895	653,913
Land
Property, Plant and Equipment
Gross property, plant and equipment	72,593	73,067
Land improvements
Property, Plant and Equipment
Gross property, plant and equipment	16,404	16,970
Buildings and improvements
Property, Plant and Equipment
Gross property, plant and equipment	212,157	221,236
Machinery and equipment
Property, Plant and Equipment
Gross property, plant and equipment	1,441,669	1,507,214
Uncompleted construction
Property, Plant and Equipment
Gross property, plant and equipment	$ 73,645	$ 63,816

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment
Property, plant and equipment, net	$ 629,895	$ 653,913
China | Harsco Environmental Segment
Property, Plant and Equipment
Property, plant and equipment, net	$ 18,000

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	Sep. 30, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Estimated operating lease obligations	$ 13
Harsco Rail Segment
Lessee, Lease, Description [Line Items]
Estimated operating lease obligations	$ 2

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Finance leases:
Amortization expense	$ 940	$ 743	$ 2,897	$ 1,692
Interest on lease liabilities	198	129	563	340
Operating leases	8,604	8,133	25,105	23,961
Variable and short-term lease expense	11,958	12,279	37,287	37,405
Sublease income	(2)	(1)	(5)	(52)
Total lease expense from continuing operations	$ 21,698	$ 21,283	$ 65,847	$ 63,346

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Changes in Carrying Amounts of Goodwill by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Changes in carrying amounts of goodwill
Balance at December 31, 2021			$ 883,109
Goodwill impairment	$ 0	$ 0	(104,580)	$ 0
Foreign currency translation			(33,749)
Balance at September 30, 2022	744,780		744,780
Harsco Environmental Segment
Changes in carrying amounts of goodwill
Balance at December 31, 2021			399,230
Goodwill impairment			0
Foreign currency translation			(33,749)
Balance at September 30, 2022	365,481		365,481
Harsco Clean Earth Segment
Changes in carrying amounts of goodwill
Balance at December 31, 2021			483,879
Goodwill impairment			(104,580)
Foreign currency translation			0
Balance at September 30, 2022	$ 379,299		$ 379,299

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Intangible Assets, by category
Goodwill impairment	$ 0	$ 0	$ 104,580	$ 0
Harsco Clean Earth Segment
Intangible Assets, by category
Goodwill impairment			104,580
Harsco Environmental Segment
Intangible Assets, by category
Goodwill impairment			0
Harsco Environmental Segment | Altek Group
Intangible Assets, by category
Intangible assets	$ 29,000		$ 29,000

Debt and Credit Agreements - Na

Debt and Credit Agreements - Narrative (Details) $ in Millions

1 Months Ended

3 Months Ended

4 Months Ended

14 Months Ended

18 Months Ended

26 Months Ended

30 Months Ended

44 Months Ended

48 Months Ended

Aug. 29, 2022

Jun. 30, 2022 USD ($)

Mar. 31, 2025

Jun. 30, 2022

Mar. 10, 2026

Dec. 31, 2023

Mar. 10, 2026

Dec. 31, 2024

Mar. 10, 2026

Jun. 30, 2022

Sep. 30, 2022 USD ($)

Feb. 22, 2022

Debt Instrument [Line Items]

Threshold of consolidated adjusted EBITDA to consolidated interest charges ratio covenant

3

Consolidated Adjusted EBITDA To Consolidated Interest Charges Ratio

3.67

Total net debt to consolidated adjusted EBITDA ratio

5.03

5.75% Senior Notes | Senior Notes

Debt Instrument [Line Items]

Repurchased face amount

$ 25

Interest rate

5.75%

Repurchased amount

$ 22.4

Gain (Loss) on Extinguishment of Debt

$ 2.3

Write off of deferred debt issuance cost

$ 0.3

Revolving Credit Facility

Debt Instrument [Line Items]

Net debt to consolidated adjusted EBITDA ratio

5.50

Total net debt to consolidated adjusted EBITDA ratio covenant, decrease

0.50

0.25

Threshold of net debt to consolidated adjusted EBITDA ratio covenant

4

Revolving Credit Facility | Senior Secured Credit Facility | Line of Credit

Debt Instrument [Line Items]

Floor interest rate

0%

Revolving Credit Facility | Senior Secured Credit Facility | Line of Credit | Minimum | Base Rate

Debt Instrument [Line Items]

Variable rate basis spread (as a percent)

0.50%

Revolving Credit Facility | Senior Secured Credit Facility | Line of Credit | Minimum | LIBOR

Debt Instrument [Line Items]

Variable rate basis spread (as a percent)

1.50%

Revolving Credit Facility | Senior Secured Credit Facility | Line of Credit | Maximum | Base Rate

Debt Instrument [Line Items]

Variable rate basis spread (as a percent)

1.75%

Revolving Credit Facility | Senior Secured Credit Facility | Line of Credit | Maximum | LIBOR

Debt Instrument [Line Items]

Variable rate basis spread (as a percent)

2.75%

Revolving Credit Facility | Forecast

Debt Instrument [Line Items]

Net debt to consolidated adjusted EBITDA ratio

5.50

4

4

Net debt to consolidated adjusted EBITDA ratio covenant, decrease

0.25

Threshold of consolidated adjusted EBITDA to consolidated interest charges ratio covenant

3

2.75

Revolving Credit Facility | Scenario, Plan | Senior Secured Credit Facility | Line of Credit

Debt Instrument [Line Items]

Consolidated interest charges to consolidated adjusted EBITDA

3

Account Receivable Facility

Debt Instrument [Line Items]

Maximum amount of facility

$ 150

Debt and Credit Agreements - Sc

Debt and Credit Agreements - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt obligation	$ 1,347,586	$ 1,387,889
Less: deferred financing costs	(15,884)	(18,217)
Total debt obligations, net of deferred financing costs	1,331,702	1,369,672
Current maturities of long-term debt	(16,784)	(10,226)
Long-term debt	1,314,918	1,359,446
Other financing payable (including finance leases) in varying amounts
Debt Instrument [Line Items]
Debt obligation	25,836	28,389
Term Loan Facility | New Term Loan
Debt Instrument [Line Items]
Debt obligation	493,750	497,500
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt obligation	353,000	362,000
Senior Notes | 5.75% Senior Notes
Debt Instrument [Line Items]
Debt obligation	$ 475,000	$ 500,000

Debt and Credit Agreements - _2

Debt and Credit Agreements - Schedule of Facility Fees and Debt-Related Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Facility Fees and Debt-Related Income [Line Items]
Facility fees and debt-related income (expense)	$ (2,511)	$ (198)	$ (894)	$ (5,506)
Facility Fees and Debt-Related Income (Expense)
Schedule of Facility Fees and Debt-Related Income [Line Items]
Gain (Loss) on Extinguishment of Debt	0	0	2,254	(2,668)
Unused Debt Commitment And Amendment Fees	(1,097)	(198)	(1,635)	(2,838)
Securitization And Factoring Fees	$ (1,414)	$ 0	$ (1,513)	$ 0

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined benefit plans:
Multiemployer pension plans	$ 446	$ 429	$ 1,381	$ 1,311
Defined contribution pension plans	3,019	2,936	9,948	9,366
Pension Plan | U.S. Plans
Defined benefit plans:
Service costs	0	0	0	0
Interest costs	1,429	1,203	4,287	3,609
Expected return on plan assets	(2,699)	(3,050)	(8,096)	(9,150)
Recognized prior service costs	0	0	0	0
Recognized actuarial losses	1,183	1,384	3,549	4,154
Defined benefit pension plans net periodic pension cost (benefit)	(87)	(463)	(260)	(1,387)
Defined benefit pension plan	426	451	1,313	3,768
Anticipated contributions to defined benefit pension plans during the remainder of the fiscal year	400		400
Pension Plan | International Plans
Defined benefit plans:
Service costs	400	463	1,250	1,391
Interest costs	3,887	3,194	12,409	9,576
Expected return on plan assets	(9,145)	(11,358)	(29,250)	(34,080)
Recognized prior service costs	107	127	340	381
Recognized actuarial losses	3,115	4,573	9,972	13,722
Defined benefit pension plans net periodic pension cost (benefit)	(1,636)	(3,001)	(5,279)	(9,010)
Defined benefit pension plan	3,824	$ 4,549	19,411	$ 21,472
Anticipated contributions to defined benefit pension plans during the remainder of the fiscal year	$ 3,400		$ 3,400

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 9,376	$ 7,816	$ 7,482	$ 14,714
Unrecognized tax benefits	4,800		4,800
Unrecognized income tax benefit that will be recognized within the next twelve months	$ 300		$ 300

Commitments and Contingencies (

Commitments and Contingencies (Details) € in Thousands

1 Months Ended

9 Months Ended

Jun. 04, 2018 USD ($)

Dec. 31, 2018 USD ($)

Aug. 31, 2005 USD ($)

Sep. 30, 2022 USD ($) case claim defendant

Mar. 22, 2022 USD ($)

Mar. 21, 2022 USD ($)

Feb. 25, 2022 EUR (€)

Dec. 31, 2021 USD ($)

Nov. 23, 2021 USD ($)

Oct. 14, 2021 EUR (€)

Dec. 30, 2020 USD ($)

Nov. 05, 2020 USD ($)

Jan. 27, 2020 party

Nov. 01, 2019 USD ($)

Nov. 01, 2019 BRL (R$)

Mar. 18, 2019 USD ($)

Mar. 18, 2019 BRL (R$)

Commitments and Contingencies

Number Of Potentially Related Parties | party

20

Reserve for loss contingencies

$ 6,500,000

Penalties per day

$ 5,000

R$ 25000

$ 1,000

R$ 5000

Penalties

2,000,000

10,000,000

Current Portion of Environmental Liabilities

8,491,000

$ 7,338,000

Environmental liabilities

26,678,000

28,435,000

Total environmental liabilities

35,169,000

35,773,000

Proposed Civil Penalty

$ 390,092

BRAZIL

Commitments and Contingencies

Loss Contingencies, Unpaid Service Taxes

$ 2,000,000

Loss Contingencies, Overall Liability

3,300,000

Brazilian Tax Disputes - Jan 2004 through May 2005 | Sao Paulo State Revenue Authority

Commitments and Contingencies

Damages sought - interest, penalties and fees

16,300,000

Damages sought - principal

1,100,000

Loss contingency, reduced penalty

$ 1,100,000

Amount of damages sought

$ 6,800,000

Brazilian Tax Disputes - Jan 2002 through Dec 2003 | Sao Paulo State Revenue Authority

Commitments and Contingencies

Damages sought - interest, penalties and fees

$ 3,600,000

Damages sought - principal

1,100,000

Loss contingency, reduced penalty

$ 800,000

Amount of damages sought

$ 4,700,000

Loss contingency, reduced penalty, including interest

$ 5,200,000

Brazilian Labor Claims

Commitments and Contingencies

Loss contingency reserves

$ 2,500,000

$ 3,200,000

Other

Commitments and Contingencies

Approximate number of defendants that includes the company named in legal actions | defendant

90

Number of pending claims | claim

17,220

Number of claims dismissed to date by stipulation or summary judgment prior to trial | case

28,400

Other | Active or In Extremis docket

Commitments and Contingencies

Number of pending claims | claim

35

Other | Minimum

Commitments and Contingencies

Amount of damages sought

$ 20,000,000

Other | Maximum

Commitments and Contingencies

Amount of damages sought

$ 25,000,000

Other | New York County as managed by the New York Supreme Court

Commitments and Contingencies

Number of pending claims | case

16,585

Other | New York County as managed by the New York Supreme Court | Pending And Future Litigation, Deferred Or Inactive Docket

Commitments and Contingencies

Number of pending claims | claim

16,550

Other | New York State Supreme Court, Counties Excluding New York County

Commitments and Contingencies

Number of pending claims | case

115

Other | Courts Located In States Other Than New York

Commitments and Contingencies

Number of pending claims | case

520

U.S. EPA Notice of Intent

Commitments and Contingencies

Penalties

$ 3,000,000

Penalty Matrix From PA DEP

Commitments and Contingencies

Penalties

$ 1,000,000

Law Suit Related To A Worker's Fatal Injury

Commitments and Contingencies

Insurance Coverage, Deductible Amount

$ 5,000,000

Alleged Violation of Environmental Permit in Ijmuiden, Netherland | Amsterdam Public Prosecutor’s Office

Commitments and Contingencies

Loss Contingency, Amount Seeking From Other Party | €

€ 100

Loss Contingency, Fine Issued By Court | €

€ 5

CSN

Commitments and Contingencies

Penalties per day

$ 19,000

R$ 100000

$ 4,000

R$ 20000

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Loss Contingencies by Contingency (Details) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Current Portion of Environmental Liabilities	$ 8,491,000	$ 7,338,000
Long-term environmental liabilities	26,678,000	28,435,000
Total environmental liabilities	$ 35,169,000	$ 35,773,000

Reconciliation of Basic and D_3

Reconciliation of Basic and Diluted Shares - Reconciliation of Basic and Diluted Shares (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Income (loss) from continuing operations attributable to Harsco Corporation common stockholders	$ 625	$ 5,040	$ (113,408)	$ 12,015
Weighted-average shares outstanding - basic (in shares)	79,531	79,287	79,469	79,214
Dilutive effect of stock-based compensation (in shares)	36	988	0	1,142
Weighted-average shares outstanding - diluted (in shares)	79,567	80,275	79,469	80,356
Earnings (loss) from continuing operations per common share, attributable to Harsco Corporation common stockholders:
Basic (in dollars per share)	$ 0.01	$ 0.06	$ (1.43)	$ 0.15
Diluted (in dollars per share)	$ 0.01	$ 0.06	$ (1.43)	$ 0.15

Reconciliation of Basic and D_4

Reconciliation of Basic and Diluted Shares - Antidilutive Securities Excluded from Computation of Earnings per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restricted stock units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	0	0	763	0
Stock appreciation rights
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	2,062	842	2,304	719
Performance share units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	1,052	1,004	1,135	902

Derivative Instruments, Hedgi_3

Derivative Instruments, Hedging Activities and Fair Value - Fair Value of Outstanding Derivative Contracts (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Derivative contracts
Asset derivatives	$ 31,053	$ 2,124
Liability derivatives	2,297	7,622
Foreign currency exchange forward contracts | Other current assets
Derivative contracts
Asset derivatives	30,784	2,124
Foreign currency exchange forward contracts | Other current liabilities
Derivative contracts
Liability derivatives	2,297	3,465
Interest rate swaps | Other current assets
Derivative contracts
Asset derivatives	269
Interest rate swaps | Other current liabilities
Derivative contracts
Liability derivatives		4,157
Fair Value of Derivatives Designated as Hedging Instruments
Derivative contracts
Asset derivatives	3,922	719
Liability derivatives	931	4,717
Fair Value of Derivatives Designated as Hedging Instruments | Foreign currency exchange forward contracts | Other current assets
Derivative contracts
Asset derivatives	3,653	719
Fair Value of Derivatives Designated as Hedging Instruments | Foreign currency exchange forward contracts | Other current liabilities
Derivative contracts
Liability derivatives	931	560
Fair Value of Derivatives Designated as Hedging Instruments | Interest rate swaps | Other current assets
Derivative contracts
Asset derivatives	269
Fair Value of Derivatives Designated as Hedging Instruments | Interest rate swaps | Other current liabilities
Derivative contracts
Liability derivatives		4,157
Fair Value of Derivatives Not Designated as Hedging Instruments
Derivative contracts
Asset derivatives	27,131	1,405
Liability derivatives	1,366	2,905
Fair Value of Derivatives Not Designated as Hedging Instruments | Foreign currency exchange forward contracts | Other current assets
Derivative contracts
Asset derivatives	27,131	1,405
Fair Value of Derivatives Not Designated as Hedging Instruments | Foreign currency exchange forward contracts | Other current liabilities
Derivative contracts
Liability derivatives	1,366	2,905
Fair Value of Derivatives Not Designated as Hedging Instruments | Interest rate swaps | Other current assets
Derivative contracts
Asset derivatives	$ 0
Fair Value of Derivatives Not Designated as Hedging Instruments | Interest rate swaps | Other current liabilities
Derivative contracts
Liability derivatives		$ 0

Derivative Instruments, Hedgi_4

Derivative Instruments, Hedging Activities and Fair Value - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Foreign Currency Derivatives
Net asset (liability) offset against collateral	$ 600,000		$ 600,000			$ (900,000)
Pre-tax net gains (losses) on certain loans designated as hedges of net investments in foreign subsidiaries	(1,000,000)	$ (3,700,000)	(2,200,000)	$ (100,000)
Long-term debt, fair value	1,099,200,000		1,099,200,000			1,394,200,000
Foreign currency exchange forward contracts
Foreign Currency Derivatives
Derivative, Notional Amount	458,200,000		458,200,000			425,800,000
Term Loan Facility, Fixed-Rate | Term Loan
Foreign Currency Derivatives
Principal amount	200,000,000		200,000,000
LIBOR | Forecast | Term Loan Facility, Fixed-Rate | Term Loan
Foreign Currency Derivatives
Variable rate basis spread (as a percent)					3.12%
Reported Value Measurement
Foreign Currency Derivatives
Long-term Debt	$ 1,347,600,000		$ 1,347,600,000			$ 1,387,900,000

Derivative Instruments, Hedgi_5

Derivative Instruments, Hedging Activities and Fair Value - Effect of Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Effect of derivative instruments
Amount Recognized in OCI on Derivatives	$ 1,517	$ 584	$ 3,483	$ 129
Amount Reclassified from AOCI into Income - Effective Portion or Equity	(28)	454	497	2,134
Foreign currency exchange forward contracts
Effect of derivative instruments
Amount Recognized in OCI on Derivatives	1,517	611	3,483	170
Foreign currency exchange forward contracts | Income (Loss) from Discontinued Businesses
Effect of derivative instruments
Amount Reclassified from AOCI into Income - Effective Portion or Equity	(1,101)	(418)	(2,687)	(465)
Interest rate swaps
Effect of derivative instruments
Amount Recognized in OCI on Derivatives	0	(27)	0	(41)
Interest rate swaps | Income (Loss) from Discontinued Businesses
Effect of derivative instruments
Amount Reclassified from AOCI into Income - Effective Portion or Equity	0	0	0	0
Interest rate swaps | Interest Expense
Effect of derivative instruments
Amount Reclassified from AOCI into Income - Effective Portion or Equity	$ 1,073	$ 872	$ 3,184	$ 2,599

Derivative Instruments, Hedgi_6

Derivative Instruments, Hedging Activities and Fair Value - Derivatives Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative [Line Items]
Interest expense	$ (19,751)	$ (15,741)	$ (51,535)	$ (47,640)
Income (loss) from discontinued businesses	1,993	1,301	(35,225)	12,904
Gain or (loss) reclassified from AOCI into income	28	(454)	(497)	(2,134)
Fair Value of Derivatives Designated as Hedging Instruments
Derivative [Line Items]
Interest expense	(19,751)	(15,741)	(51,535)	(47,640)
Interest Expense | Interest rate swaps
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	(1,073)	(872)	(3,184)	(2,599)
Amount recognized in earnings due to ineffectiveness	238	0	1,850	0
Interest Expense | Foreign exchange contracts
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	0	0	0	0
Income (Loss) from Discontinued Businesses | Interest rate swaps
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	0	0	0	0
Amount recognized in earnings due to ineffectiveness	0	0	0	0
Income (Loss) from Discontinued Businesses | Foreign exchange contracts
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	$ 1,101	$ 418	$ 2,687	$ 465

Derivative Instruments, Hedgi_7

Derivative Instruments, Hedging Activities and Fair Value - Instrument Not Designated As Hedging Instrument (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Foreign currency exchange forward contracts | Cost of services and products sold
Derivative [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 18,764	$ 4,105	$ 40,836	$ 8,109

Review of Operations by Segme_3

Review of Operations by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operations by segment
Revenues	$ 486,914	$ 470,385	$ 1,420,763	$ 1,386,324
Operating income from continuing operations	30,123	26,921	(59,132)	72,304
Interest income	952	544	2,289	1,668
Interest expense	(19,751)	(15,741)	(51,535)	(47,640)
Facility fees and debt-related income (expense)	(2,511)	(198)	(894)	(5,506)
Defined benefit pension income	2,118	3,887	6,775	11,777
Income (loss) from continuing operations before income taxes and equity income	10,931	15,413	(102,497)	32,603
Depreciation	31,892		97,959	98,383
Depreciation Excluding Industrial Segment		32,246		94,732
Amortization	8,538		25,605	26,554
Amortization, Excluding Discontinued Operations		8,687		26,300
Capital Expenditures	39,392	40,332	100,151	108,178
Operating Segments
Operations by segment
Operating income from continuing operations	39,432	37,523	(31,719)	104,245
Operating Segments | Harsco Environmental Segment
Operations by segment
Revenues	264,717	269,901	804,367	800,433
Operating income from continuing operations	22,117	27,630	63,931	83,788
Depreciation	26,772	27,179	82,311	78,446
Amortization	1,619	1,997	5,161	6,080
Capital Expenditures	31,688	34,218	80,063	94,630
Operating Segments | Harsco Clean Earth Segment
Operations by segment
Revenues	222,197	200,484	616,396	585,891
Operating income from continuing operations	17,315	9,893	(95,650)	20,457
Depreciation	4,576	4,576	14,213	14,818
Amortization	6,071	6,033	18,277	18,179
Capital Expenditures	6,331	5,707	16,577	12,962
Corporate
Operations by segment
Operating income from continuing operations	(9,309)	(10,602)	(27,413)	(31,941)
Depreciation	544	491	1,435	1,468
Amortization	848	657	2,167	2,041
Capital Expenditures	$ 1,373	$ 407	$ 3,511	$ 586

Revenue Recognition - Revenues

Revenue Recognition - Revenues by Primary Geographical Markets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 486,914	$ 470,385	$ 1,420,763	$ 1,386,324
Environmental services related to resource recovery for metals manufacturing and related logistical services
Disaggregation of Revenue [Line Items]
Total revenues	220,578	230,340	684,432	688,923
Ecoproducts
Disaggregation of Revenue [Line Items]
Total revenues	40,274	36,091	110,322	100,706
Environmental systems for aluminum dross and scrap processing
Disaggregation of Revenue [Line Items]
Total revenues	3,865	3,470	9,613	10,804
Waste processing, recycling, reuse and transportation solutions
Disaggregation of Revenue [Line Items]
Total revenues	222,197	200,484	616,396	585,891
North America
Disaggregation of Revenue [Line Items]
Total revenues	297,426	271,963	843,413	794,286
Western Europe
Disaggregation of Revenue [Line Items]
Total revenues	92,757	106,859	294,427	336,011
Latin America
Disaggregation of Revenue [Line Items]
Total revenues	40,574	35,072	115,581	99,524
Asia-Pacific
Disaggregation of Revenue [Line Items]
Total revenues	31,402	30,228	91,420	80,520
Middle East and Africa
Disaggregation of Revenue [Line Items]
Total revenues	20,195	20,804	60,843	60,798
Eastern Europe
Disaggregation of Revenue [Line Items]
Total revenues	4,560	5,459	15,079	15,185
Operating Segments | Harsco Environmental Segment
Disaggregation of Revenue [Line Items]
Total revenues	264,717	269,901	804,367	800,433
Operating Segments | Harsco Environmental Segment | Environmental services related to resource recovery for metals manufacturing and related logistical services
Disaggregation of Revenue [Line Items]
Total revenues	220,578	230,340	684,432	688,923
Operating Segments | Harsco Environmental Segment | Ecoproducts
Disaggregation of Revenue [Line Items]
Total revenues	40,274	36,091	110,322	100,706
Operating Segments | Harsco Environmental Segment | Environmental systems for aluminum dross and scrap processing
Disaggregation of Revenue [Line Items]
Total revenues	3,865	3,470	9,613	10,804
Operating Segments | Harsco Environmental Segment | Waste processing, recycling, reuse and transportation solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Environmental Segment | North America
Disaggregation of Revenue [Line Items]
Total revenues	75,229	71,479	227,017	208,395
Operating Segments | Harsco Environmental Segment | Western Europe
Disaggregation of Revenue [Line Items]
Total revenues	92,757	106,859	294,427	336,011
Operating Segments | Harsco Environmental Segment | Latin America
Disaggregation of Revenue [Line Items]
Total revenues	40,574	35,072	115,581	99,524
Operating Segments | Harsco Environmental Segment | Asia-Pacific
Disaggregation of Revenue [Line Items]
Total revenues	31,402	30,228	91,420	80,520
Operating Segments | Harsco Environmental Segment | Middle East and Africa
Disaggregation of Revenue [Line Items]
Total revenues	20,195	20,804	60,843	60,798
Operating Segments | Harsco Environmental Segment | Eastern Europe
Disaggregation of Revenue [Line Items]
Total revenues	4,560	5,459	15,079	15,185
Operating Segments | Harsco Clean Earth Segment
Disaggregation of Revenue [Line Items]
Total revenues	222,197	200,484	616,396	585,891
Operating Segments | Harsco Clean Earth Segment | Environmental services related to resource recovery for metals manufacturing and related logistical services
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Ecoproducts
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Environmental systems for aluminum dross and scrap processing
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Waste processing, recycling, reuse and transportation solutions
Disaggregation of Revenue [Line Items]
Total revenues	222,197	200,484	616,396	585,891
Operating Segments | Harsco Clean Earth Segment | North America
Disaggregation of Revenue [Line Items]
Total revenues	222,197	200,484	616,396	585,891
Operating Segments | Harsco Clean Earth Segment | Western Europe
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Latin America
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Asia-Pacific
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Middle East and Africa
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Operating Segments | Harsco Clean Earth Segment | Eastern Europe
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 0	$ 0	$ 0

Revenue Recognition - Narrative

Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Total contract assets	$ 3.5		$ 3.5		$ 3.1
Total advances on contracts	3.7		3.7		$ 4.1
Revenue recognized	$ 4	$ 6	$ 14	$ 12

Revenue Recognition - Remaining

Revenue Recognition - Remaining Performance Obligation (Details) - Harsco Environmental Segment $ in Millions	Sep. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 74.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 19.8
Period of expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 19.4
Period of expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 18.8
Period of expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 8.1
Period of expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Period of expected timing of satisfaction

Other (Income) Expenses, Net (D

Other (Income) Expenses, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Other Income and Expenses [Abstract]
Employee termination benefit costs	$ 1,412	$ (65)	$ 1,707	$ 1,102
Other costs to exit activities	239	(27)	1,299	611
Impaired asset write-downs	4	41	359	203
Net gains	(1,077)	(1,575)	(2,981)	(8,622)
Other	(929)	(1,209)	131	(1,287)
Other (income) expenses, net	$ (351)	$ (2,835)	$ 515	$ (7,993)

Components of Accumulated Oth_3

Components of Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Components of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ 651,703	$ 781,095	$ 805,770	$ 749,383	$ 716,583	$ 713,399	$ 805,770	$ 713,399
OCI before reclassifications							(55,688)	(8,527)
Amounts reclassified from AOCI, net of tax							12,955	18,672
Total other comprehensive income (loss)	(25,615)	(29,126)	12,008	(8,997)	17,913	1,229	(42,733)	10,145
Less: OCI attributable to noncontrolling interests							(6,108)	(837)
OCI attributable to Harsco Corporation							(36,625)	10,982
Ending balance	626,135	651,703	781,095	753,227	749,383	716,583	626,135	753,227
Cumulative Foreign Exchange Translation Adjustments
Components of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			(134,889)			(125,392)	(134,889)	(125,392)
OCI before reclassifications							(116,407)	(15,437)
Amounts reclassified from AOCI, net of tax							0	0
Total other comprehensive income (loss)							(116,407)	(15,437)
Less: OCI attributable to noncontrolling interests							(6,108)	(837)
OCI attributable to Harsco Corporation							(110,299)	(14,600)
Ending balance	(245,188)			(139,992)			(245,188)	(139,992)
Effective Portion of Derivatives Designated as Hedging Instruments
Components of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			(3,024)			(5,840)	(3,024)	(5,840)
OCI before reclassifications							2,971	257
Amounts reclassified from AOCI, net of tax							32	1,488
Total other comprehensive income (loss)							3,003	1,745
Less: OCI attributable to noncontrolling interests							0	0
OCI attributable to Harsco Corporation							3,003	1,745
Ending balance	(21)			(4,095)			(21)	(4,095)
Cumulative Unrecognized Actuarial Losses on Pension Obligations
Components of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			(422,248)			(514,500)	(422,248)	(514,500)
OCI before reclassifications							57,768	6,628
Amounts reclassified from AOCI, net of tax							12,923	17,184
Total other comprehensive income (loss)							70,691	23,812
Less: OCI attributable to noncontrolling interests							0	0
OCI attributable to Harsco Corporation							70,691	23,812
Ending balance	(351,557)			(490,688)			(351,557)	(490,688)
Unrealized Gain (Loss) on Marketable Securities
Components of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			22			(9)	22	(9)
OCI before reclassifications							(20)	25
Amounts reclassified from AOCI, net of tax							0	0
Total other comprehensive income (loss)							(20)	25
Less: OCI attributable to noncontrolling interests							0	0
OCI attributable to Harsco Corporation							(20)	25
Ending balance	2			16			2	16
Accumulated Other Comprehensive Loss
Components of Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(573,872)	(547,649)	(560,139)	(626,206)	(643,446)	(645,741)	(560,139)	(645,741)
Total other comprehensive income (loss)	(22,892)	(26,223)	12,490	(8,553)	17,240	2,295
Ending balance	$ (596,764)	$ (573,872)	$ (547,649)	$ (634,759)	$ (626,206)	$ (643,446)	$ (596,764)	$ (634,759)

Components of Accumulated Oth_4

Components of Accumulated Other Comprehensive Loss - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 19,751			$ 15,741			$ 51,535	$ 47,640
Income from continuing operations before income taxes	10,931			15,413			(102,497)	32,603
Income tax expense (benefit)	9,376			7,816			7,482	14,714
Net income (loss)	2,881	$ (104,496)	$ (38,680)	9,828	$ 15,080	$ 1,565	(140,295)	26,473
Amount Reclassified from Accumulated Other Comprehensive Loss | Cash flow hedging intruments
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income taxes	(28)			454			497	2,134
Income tax expense (benefit)	(108)			(148)			(465)	(646)
Net income (loss)	(136)			306			32	1,488
Amount Reclassified from Accumulated Other Comprehensive Loss | Cash flow hedging intruments | Foreign currency exchange forward contracts
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from discontinued businesses	(1,101)			(418)			(2,687)	(465)
Amount Reclassified from Accumulated Other Comprehensive Loss | Cash flow hedging intruments | Interest rate swaps
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	1,073			872			3,184	2,599
Amount Reclassified from Accumulated Other Comprehensive Loss | Defined benefit pension items
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income taxes	4,405			6,047			13,861	18,258
Income tax expense (benefit)	(313)			(358)			(938)	(1,074)
Net income (loss)	4,092			5,689			12,923	17,184
Amount Reclassified from Accumulated Other Comprehensive Loss | Actuarial losses
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Defined benefit pension income	4,298			5,922			13,521	17,877
Amount Reclassified from Accumulated Other Comprehensive Loss | Prior service costs
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Defined benefit pension income	$ 107			$ 125			$ 340	$ 381