Dispositions - Summary of Cash Flow Information from Disposal of Harsco Rail Segment (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022
Discontinued Operations, Held-for-sale \| Harsco Rail Segment
Business Acquisition [Line Items]
Purchases of property, plant and equipment	$ 1,515	$ 1,494

Amount of capital expenditure attributable to discontinued operations.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration