Acquisitions and Dispositions - Financial Information Included in Net Income from Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Amounts directly attributable to the former Harsco Industrial Segment:
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	$ 18,462	$ 0
Harsco Industrial \| Discontinued Operations, Held-for-sale
Amounts directly attributable to the former Harsco Industrial Segment:
Total revenues	10,203	117,386
Cost of products sold	8,082	87,695
Income from discontinued business	218	14,192
Additional amounts allocated to the former Harsco Industrial Segment:
Selling, general and administrative expenses	1,266	0
Interest expense	$ 0	$ 4,232

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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