Information by Segment and Geographic Area (Tables)

12 Months Ended

Dec. 31, 2022

Segment Reporting [Abstract]

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

Countries with revenues from unaffiliated customers or net property, plant and equipment of ten percent or more of the consolidated totals (in at least one period presented) are as follows:

Information by Geographic Area (a)

	Revenues from Unaffiliated Customers
	Years ended December 31
(In thousands)	2022		2021		2020
U.S.	$	1,075,355	$	1,008,689	$	830,699
All Other	813,710		839,710		703,334
Totals including Corporate	$	1,889,065	$	1,848,399	$	1,534,033

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

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

	Property, Plant and Equipment, Net
	December 31
(In thousands)	2022		2021
U.S.	$	283,864	$	267,174
China	96,095		108,496
All Other	276,916		278,243
Totals including Corporate	$	656,875	$	653,913

Schedule of Segment Operating Information by Segment

Operating Information by Segment:

	Years ended December 31
(In thousands)	2022		2021		2020
Revenues
Harsco Environmental	$	1,061,239	$	1,068,083	$	914,445
Harsco Clean Earth	827,826		780,316		619,588
Total Revenues	$	1,889,065	$	1,848,399	$	1,534,033
Operating Income (Loss)
Harsco Environmental	$	59,559	$	103,402	$	59,006
Harsco Clean Earth	(81,785)		25,639		16,096
Corporate	(35,117)		(40,665)		(78,408)
Total Operating Income (Loss)	$	(57,343)	$	88,376	$	(3,306)
Total Assets
Harsco Environmental	$	1,416,717	$	1,386,087	$	1,322,731
Harsco Clean Earth	980,774		1,278,472		1,279,387
Corporate	57,118		56,086		74,185
Discontinued Operations	336,245		333,263		316,984
Total Assets	$	2,790,854	$	3,053,908	$	2,993,287
Depreciation
Harsco Environmental	$	108,880	$	105,830	$	100,971
Harsco Clean Earth	18,836		19,672		17,450
Corporate	1,996		1,900		2,022
Total Depreciation	$	129,712	$	127,402	$	120,443
Amortization
Harsco Environmental	$	6,809	$	8,052	$	7,825
Harsco Clean Earth	24,299		24,180		22,814
Corporate (b)	3,029		2,710		2,961
Total Amortization	$	34,137	$	34,942	$	33,600
Capital Expenditures
Harsco Environmental	$	109,508	$	137,228	$	99,056
Harsco Clean Earth	21,996		18,403		12,612
Corporate	4,038		1,289		488
Total Capital Expenditures	$	135,542	$	156,920	$	112,156

(b) Amortization expense on Corporate relates to the amortization of deferred financing costs.

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

Reconciliation of Segment Operating Income to Consolidated Income (Loss) From Continuing Operations Before Income Taxes and Equity Income:

	Years ended December 31
(In thousands)	2022		2021		2020
Segment operating income (loss)	$	(22,226)	$	129,041	$	75,102
General Corporate expense	(35,117)		(40,665)		(78,408)
Operating income (loss) from continuing operations	(57,343)		88,376		(3,306)
Interest income	3,559		2,231		2,129
Interest expense	(75,156)		(63,235)		(58,196)
Defined benefit pension income (expense)	8,938		15,640		7,073
Facility fees and debt-related income (expense)	(2,956)		(5,506)		(1,920)
Income (loss) from continuing operations before income taxes and equity income	$	(122,958)	$	37,506	$	(54,220)