Other Expenses (Income), Net (Tables)

12 Months Ended

Dec. 31, 2025

Other Income and Expenses [Abstract]

Schedule of other expenses (income)

The major components of this Consolidated Statements of Operations caption, broken out by operating segment, are as follows:

(In thousands)	2025		2024		2023
Net gains
Harsco Environmental	$	(3,220)	$	(3,357)	$	(250)
Clean Earth	(300)		—		—
Harsco Rail	(276)		—		(2,311)
Corporate	—		(3,272)		—
Total net gains	(3,796)		(6,629)		(2,561)
Employee termination benefit costs
Harsco Environmental	8,036		6,013		1,977
Clean Earth	730		521		1,399
Harsco Rail	1,960		640		(645)
Corporate	327		1,179		275
Total employee termination benefit costs	11,053		8,353		3,006
Other costs (income) to exit activities
Harsco Environmental	3,336		(3,615)		(7,810)
Harsco Rail	(59)		9		3,576
Corporate	18,700		2,060		2,669
Total other costs (income) to exit activities	21,977		(1,546)		(1,565)
Asset impairments
Harsco Environmental	583		2,771		88
Clean Earth	—		567		—
Harsco Rail	185		1,921		—
Total asset impairments	768		5,259		88
Contingent consideration adjustments
Corporate	—		—		(848)
Total contingent consideration adjustments	—		—		(848)
Other (income) expense	—		—		289
Total other (income) expenses, net	$	30,002	$	5,437	$	(1,591)