Acquisitions and Dispositions - Summary of Cash Flow Information (Details) - Discontinued Operations, Held-for-sale [Member] - Harsco Industrial - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Depreciation and amortization	$ 0	$ 3,301	$ 7,729
Purchases of property, plant and equipment	$ 106	$ 8,372	$ 7,561

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Amount of capital expenditure attributable to discontinued operations.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
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Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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