Accounts Receivable and Note Receivable - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Apr. 30, 2024	Jun. 30, 2022	Mar. 31, 2025	Mar. 31, 2024	Feb. 28, 2025	Dec. 31, 2024	Jun. 30, 2024	Jan. 31, 2020	Jan. 01, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable			$ 295,398			$ 275,804
Trade accounts receivable, net			280,965			260,690
Accounts receivable under factoring arrangement, program capacity			19,500			18,600
Note receivable, face value								$ 40,000
Note receivable, interest rate								2.50%
Accounts receivable past due by twelve months or more			6,500
Interest income			454	$ 1,697
Greater than 12 months
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable			10,000
Harsco Industrial IKG | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Selling price									$ 85,000
Interest income	$ 2,700
Proceeds from notes receivable	$ 17,000
Accounts Receivable Under Factoring Arrangement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable, net			16,000			13,300
PNC
Accounts, Notes, Loans and Financing Receivable [Line Items]
AR facility term		3 years
Accounts receivable securitization, maximum purchase commitment					$ 160,000		$ 150,000
Total outstanding trade receivables sold and derecognized			160,000			150,000
Accounts receivable from securitization			66,000			$ 63,800
Additional proceeds			$ 10,000	$ 0