Dispositions - Schedule of Balance Sheet from Disposal of Harsco Rail Segment (Details) (Details) - Discontinued Operations, Held-for-sale - Harsco Rail Segment - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Trade accounts receivable, net	$ 56,229	$ 41,049
Other receivables	7,750	4,037
Inventories	110,293	105,256
Current portion of contract assets	59,145	84,848
Other current assets	35,382	30,950
Property, plant and equipment, net	44,576	41,004
Right-of-use assets, net	6,579	5,635
Goodwill	13,026	13,026
Intangible assets, net	2,541	2,746
Deferred income tax assets	732	6,887
Noncurrent portion of contract assets	21,657	0
Other assets	874	807
Total Rail assets included in Assets held-for-sale	358,784	336,245
Accounts payable	46,559	49,083
Accrued compensation	5,633	1,211
Current portion of operating lease liabilities	3,126	2,635
Current portion of advances on contracts	25,406	45,037
Other current liabilities	58,493	61,039
Operating lease liabilities	3,393	3,121
Deferred tax liabilities	505	5,480
Other liabilities	504	861
Total Rail liabilities included in Liabilities of assets held-for-sale	$ 143,619	$ 168,467