Accounts Receivable and Note Receivable - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2023	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Jan. 31, 2020	Jan. 01, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable			$ 322,102	$ 353,709
Trade accounts receivable, net			308,213	338,187
Accounts receivable under factoring arrangement, program capacity			32,000	32,600
Note receivable, face value						$ 40,000
Note receivable, interest rate						2.50%
Accounts receivable past due by twelve months or more			9,300
Greater than 12 months
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable			14,700
Harsco Industrial IKG | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Selling price							$ 85,000
Accounts Receivable Under Factoring Arrangement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable, net			14,700	16,100
PNC
Accounts, Notes, Loans and Financing Receivable [Line Items]
AR facility term	3 years
Accounts receivable securitization, maximum purchase commitment					$ 150,000
Total outstanding trade receivables sold and derecognized			150,000
Accounts receivable from securitization			$ 71,600	$ 82,200
Additional proceeds		$ 5,000