Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2024

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, 2024
(In thousands)	Harsco Environmental Segment		Clean Earth Segment		Harsco Rail Segment		Consolidated Totals
Primary Geographical Markets (a):
North America	$	70,316	$	236,791	$	31,644	$	338,751
Western Europe	108,709		—		21,294		130,003
Latin America (b)	38,195		—		247		38,442
Asia-Pacific	31,333		—		4,503		35,836
Middle East and Africa	26,327		—		—		26,327
Eastern Europe	4,268		—		—		4,268
Total Revenues	$	279,148	$	236,791	$	57,688	$	573,627
Key Product and Service Groups:
Environmental services related to resource recovery for metals manufacturing and related logistical services	$	235,490	$	—	$	—	$	235,490
Ecoproducts	36,663		—		—		36,663
Environmental systems for aluminum dross and scrap processing	6,995		—		—		6,995
Railway track maintenance equipment	—		—		19,099		19,099
After market parts and services; safety and diagnostic technology	—		—		23,495		23,495
Railway contracting services	—		—		15,094		15,094
Hazardous waste processing solutions	—		194,557		—		194,557
Soil and dredged materials processing and reuse solutions	—		42,234		—		42,234
Total Revenues	$	279,148	$	236,791	$	57,688	$	573,627

	Three Months Ended
	September 30, 2023
(In thousands)	Harsco Environmental Segment		Clean Earth Segment		Harsco Rail Segment		Consolidated Totals
Primary Geographical Markets (a):
North America	$	78,528	$	238,711	$	50,322	$	367,561
Western Europe	109,473		—		20,294		129,767
Latin America (b)	44,351		—		700		45,051
Asia-Pacific	25,787		—		1,064		26,851
Middle East and Africa	22,673		—		—		22,673
Eastern Europe	5,065		—		—		5,065
Total Revenues	$	285,877	$	238,711	$	72,380	$	596,968

	Three Months Ended
	September 30, 2023
(In thousands)	Harsco Environmental Segment		Clean Earth Segment		Harsco Rail Segment		Consolidated Totals
Key Product and Service Groups:
Environmental services related to resource recovery for metals manufacturing and related logistical services	$	234,274	$	—	$	—	$	234,274
Ecoproducts	43,841		—		—		43,841
Environmental systems for aluminum dross and scrap processing	7,762		—		—		7,762
Railway track maintenance equipment	—		—		24,531		24,531
After market parts and services; safety and diagnostic technology	—		—		31,310		31,310
Railway contracting services	—		—		16,539		16,539
Hazardous waste processing solutions	—		194,927		—		194,927
Soil and dredged materials processing and reuse solutions	—		43,784		—		43,784
Total Revenues	$	285,877	$	238,711	$	72,380	$	596,968

	Nine Months Ended
	September 30, 2024
(In thousands)	Harsco Environmental Segment		Clean Earth Segment		Harsco Rail Segment		Consolidated Totals
Primary Geographical Markets (a):
North America	$	238,553	$	698,926	$	129,119	$	1,066,598
Western Europe	328,604		—		61,318		389,922
Latin America (b)	122,396		—		3,205		125,601
Asia-Pacific	88,593		—		20,173		108,766
Middle East and Africa	79,858		—		—		79,858
Eastern Europe	13,192		—		—		13,192
Total Revenues	$	871,196	$	698,926	$	213,815	$	1,783,937
Key Product and Service Groups:
Environmental services related to resource recovery for metals manufacturing and related logistical services	$	747,303	$	—	$	—	$	747,303
Ecoproducts	107,190		—		—		107,190
Environmental systems for aluminum dross and scrap processing	16,703		—		—		16,703
Railway track maintenance equipment	—		—		79,535		79,535
After-market parts and services; safety and diagnostic technology	—		—		89,502		89,502
Railway contracting services	—		—		44,778		44,778
Hazardous waste processing solutions	—		581,341		—		581,341
Soil and dredged materials processing and reuse solutions	—		117,585		—		117,585
Total Revenues	$	871,196	$	698,926	$	213,815	$	1,783,937

	Nine Months Ended
	September 30, 2023
(In thousands)	Harsco Environmental Segment		Clean Earth Segment		Harsco Rail Segment		Consolidated Totals
Primary Geographical Markets (a):
North America	$	238,617	$	691,750	$	163,934	$	1,094,301
Western Europe	318,177		—		44,858		363,035
Latin America (b)	127,486		—		1,865		129,351
Asia-Pacific	87,087		—		15,623		102,710
Middle East and Africa	62,195		—		—		62,195
Eastern Europe	15,097		—		—		15,097
Total Revenues	$	848,659	$	691,750	$	226,280	$	1,766,689
Key Product and Service Groups:
Environmental services related to resource recovery for metals manufacturing and related logistical services	$	706,273	$	—	$	—	$	706,273
Ecoproducts	122,747		—		—		122,747
Environmental systems for aluminum dross and scrap processing	19,639		—		—		19,639
Railway track maintenance equipment	—		—		98,771		98,771
After-market parts and services; safety and diagnostic technology	—		—		93,633		93,633
Railway contracting services	—		—		33,876		33,876
Hazardous waste processing solutions	—		578,545		—		578,545
Soil and dredged materials processing and reuse solutions	—		113,205		—		113,205
Total Revenues	$	848,659	$	691,750	$	226,280	$	1,766,689

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

(b)     Includes Mexico.