Accounts Receivable - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 24, 2022	Dec. 31, 2021	Jan. 31, 2020	Jan. 01, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable (a)	$ 275,946,000	$ 275,946,000		$ 389,535,000
Accounts Receivable Greater than 12 Months Reserved	2,900,000	2,900,000
Trade accounts receivable, net	267,747,000	267,747,000		377,881,000
Accounts receivable under factoring arrangement, program capacity	18,800,000	18,800,000		16,500,000
Receivable with Imputed Interest, Face Amount					$ 40,000,000
Note Receivable; Interest Rate; Stated percentage					2.50%
Receivables, Fair Value Disclosure	23,300,000	23,300,000			$ 34,300,000
Accounts Receivable Securitization, Deferred Financing Cost			$ 1,800,000
Proceeds from Accounts Receivable Securitization	120,000,000.0
Proceeds from sale of notes receivable, excess cash flow	8,600,000	8,600,000
PNC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable from Securitization	92,000,000.0	92,000,000.0
Accounts Receivable Securitization, Maximum Purchase Commitment			$ 150,000,000
Accounts Receivable Securitization, Amount Sold	120,000,000	120,000,000
Accounts Receivable Under Factoring Arrangement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable, net	12,600,000	12,600,000		$ 12,900,000
Greater than 12 months
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable (a)	$ 5,600,000	$ 5,600,000
Harsco Industrial IKG | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Selling price						$ 85,000,000