Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

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:

	Twelve Months Ended
	December 31, 2021
(In thousands)	Harsco Environmental Segment		Harsco Clean Earth Segment		Consolidated Totals
Primary Geographical Markets (a)(b):
North America	$	281,124	$	780,317	$	1,061,441
Western Europe	442,286		—		442,286
Latin America (c)	132,349		—		132,349
Asia-Pacific	110,790		—		110,790
Middle East and Africa	81,337		—		81,337
Eastern Europe	20,196		—		20,196
Total Revenues	$	1,068,082	$	780,317	$	1,848,399
Key Product and Service Groups (a):
Environmental services related to resource recovery for metals manufacturing; and related logistical services	$	920,579	$	—	$	920,579
Ecoproducts	132,389		—		132,389
Environmental systems for aluminum dross and scrap processing	15,114		—		15,114
Waste processing and reuse solutions	—		780,317		780,317
Total Revenues	$	1,068,082	$	780,317	$	1,848,399

	Twelve Months Ended
	December 31, 2020
(In thousands)	Harsco Environmental Segment		Harsco Clean Earth Segment		Consolidated Totals
Primary Geographical Markets (a)(b):
North America	$	249,904	$	619,588	$	869,492
Western Europe	377,066		—		377,066
Latin America (c)	119,457		—		119,457
Asia-Pacific	87,608		—		87,608
Middle East and Africa	63,427		—		63,427
Eastern Europe	16,983		—		16,983
Total Revenues	$	914,445	$	619,588	$	1,534,033
Key Product and Service Groups (a):
Environmental services related to resource recovery for metals manufacturing; and related logistical services	$	781,060	$	—	$	781,060
Ecoproducts	120,432		—		120,432
Environmental systems for aluminum dross and scrap processing	12,953		—		12,953
Waste processing and reuse solutions	—		619,588		619,588
Total Revenues	$	914,445	$	619,588	$	1,534,033

	Twelve Months Ended
	December 31, 2019
(In thousands)	Harsco Environmental Segment		Harsco Clean Earth Segment		Consolidated Totals
Primary Geographical Markets (b):
North America	$	294,367	$	169,522	$	463,889
Western Europe	386,593		—		386,593
Latin America (c)	146,040		—		146,040
Asia-Pacific	128,949		—		128,949
Middle East and Africa	60,402		—		60,402
Eastern Europe	18,496		—		18,496
Total Revenues	$	1,034,847	$	169,522	$	1,204,369
Key Product and Service Groups:
Environmental services related to resource recovery for metals manufacturing; and related logistical services	$	888,851	$	—	$	888,851
Ecoproducts	127,874		—		127,874
Environmental systems for aluminum dross and scrap processing	18,122		—		18,122
Waste processing and reuse solutions	—		169,522		169,522
Total Revenues	$	1,034,847	$	169,522	$	1,204,369

(a)     The Company acquired ESOL in 2020 and Clean Earth in 2019. The results of both are included in the Harsco Clean Earth Segment. The operating results of the former Harsco Rail Segment and Harsco Industrial Segment have been reflected as discontinued operations in the Consolidated Statements of Operations. See Note 3, Acquisition and Dispositions, for additional details.

(b)     Revenues are attributed to individual countries based on the location of the facility generating the revenue.

(c)    Includes Mexico.