Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 333,725		$ 323,502
Receivable with Imputed Interest, Face Amount	$ 40,000
Note Receivable; Interest Rate; Stated percentage	2.50%
Greater than 12 months [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 3,700
Harsco Industrial IKG [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Selling price		$ 85,000