CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (16,846)	$ (8,590)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of deferred income taxes	(16,535)	12,446
Net gain (loss) on cash flow hedging instruments, net of deferred income taxes	1,863	(2,560)
Pension liability adjustments, net of deferred income taxes	7,011	(2,735)
Unrealized gain (loss) on marketable securities, net of deferred income taxes	2	1
Total other comprehensive income (loss)	(7,659)	7,152
Total comprehensive income (loss)	(24,505)	(1,438)
Less: Comprehensive (income) loss attributable to noncontrolling interests	(295)	(1,293)
Comprehensive income (loss) attributable to Enviri Corporation	$ (24,800)	$ (2,731)