Other Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Other Income and Expenses [Abstract]

Schedule of other expenses (income)

The major components of this Consolidated Statements of Operations caption are as follows:

(In thousands)	2021		2020		2019
Net gains
Harsco Environmental Segment	$	(8,902)	$	(3,723)	$	(6,303)
Employee termination benefit costs
Harsco Environmental Segment	2,852		9,389		1,254
Clean Earth Segment	433		833		1,960
Corporate	1,481		27		1,012
Total employee termination benefit costs	4,766		10,249		4,226
Other costs to exit activities
Harsco Environmental Segment	640		504		970
Clean Earth Segment	23		—		—
Corporate	—		29		196
Total other costs to exit activities	663		533		1,166
Impaired asset write-downs
Harsco Environmental Segment	942		776		632
Clean Earth Segment	63		—		—
Total impaired asset write-downs	1,005		776		632
Contingent consideration adjustments
Harsco Environmental Segment	—		—		(8,506)
Harsco Clean Earth Segment	—		112		825
Corporate	—		2,274		—
Total contingent consideration adjustments	—		2,386		(7,681)
Other income	(1,254)		(149)		(234)
Total other (income) expenses, net	$	(3,722)	$	10,072	$	(8,194)