CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Account receivable, allowances aggregating	$ 43,778	$ 47,242
Closure and post-closure liabilities, current portion	16,796	10,304
Remedial liabilities, current portion	$ 12,018	$ 10,321
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares (in shares)	80,000,000	80,000,000
Common stock, issued shares (in shares)	53,430,975	53,832,692
Common stock, outstanding shares (in shares)	53,430,975	53,832,692