Other Expenses (Tables)

12 Months Ended

Dec. 31, 2018

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)	2018			2017			2016
Net gains
Harsco Metals & Minerals Segment	$	(2,650	)	$	(1,354	)	$	(1,828	)
Harsco Industrial Segment	—			(3,782		)	64
Corporate	(1,218		)	—			—
Total net gains	(3,868		)	(5,136		)	(1,764		)
Employee termination benefit costs
Harsco Metals & Minerals Segment	2,853			4,411			8,491
Harsco Industrial Segment	220			617			947
Harsco Rail Segment	704			1,133			297
Corporate	1,206			1,189			1,042
Total employee termination benefit costs	4,983			7,350			10,777
Other costs to exit activities
Harsco Metals & Minerals Segment	352			706			220
Harsco Industrial Segment	258			371			40
Corporate	(182		)	556			180
Total other costs to exit activities	428			1,633			440
Impaired asset write-downs
Harsco Metals & Minerals Segment	104			706			399
Harsco Industrial Segment	9			151			—
Corporate	—			168			—
Total impaired asset write-downs	113			1,025			399
Harsco Metals & Minerals Segment contingent consideration adjustments	(2,939		)	—			—
Harsco Metals & Minerals Segment separation costs	—			—			3,235
Other income	(239		)	(231		)	(467		)
Total other (income) expenses, net	$	(1,522	)	$	4,641		$	12,620