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Acquisitions and Dispositions - Summary of Cash Flow Information (Details) - Discontinued Operations, Held-for-sale [Member] - Harsco Industrial - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Business Acquisition [Line Items] |  |  |
Depreciation and Amortization, Discontinued Operations | $ 3,301 | $ 7,729 | $ 7,360
Capital Expenditure, Discontinued Operations | $ 8,372 | $ 7,561 | $ 6,895

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