CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues from continuing operations:
Revenues	$ 524,588	$ 486,914	$ 1,540,409	$ 1,420,763
Costs and expenses from continuing operations:
Cost of sales	408,743	392,803	1,216,058	1,173,021
Selling, general and administrative expenses	84,389	64,146	233,174	201,234
Research and development expenses	271	193	947	545
Goodwill impairment	0	0	0	104,580
Property, plant and equipment impairment charge	0	0	14,099	0
Other expense (income), net	1,410	(351)	(6,964)	515
Total costs and expenses	494,813	456,791	1,457,314	1,479,895
Operating income (loss) from continuing operations	29,775	30,123	83,095	(59,132)
Interest income	1,679	952	4,701	2,289
Interest expense	(26,739)	(19,751)	(76,791)	(51,535)
Facility fees and debt-related income (expense)	(2,806)	(2,511)	(7,899)	(894)
Defined benefit pension income (expense)	(5,436)	2,118	(16,178)	6,775
Income (loss) from continuing operations before income taxes and equity income	(3,527)	10,931	(13,072)	(102,497)
Income tax benefit (expense) from continuing operations	(4,109)	(9,376)	(21,351)	(7,482)
Equity income (loss) of unconsolidated entities, net	(151)	(128)	(593)	(373)
Income (loss) from continuing operations	(7,787)	1,427	(35,016)	(110,352)
Discontinued operations:
Income (loss) from discontinued businesses	(3,317)	1,993	4,858	(35,225)
Income tax benefit (expense) from discontinued businesses	1,010	(539)	(4,364)	5,282
Income (loss) from discontinued operations, net of tax	(2,307)	1,454	494	(29,943)
Net income (loss)	(10,094)	2,881	(34,522)	(140,295)
Less: Net loss (income) attributable to noncontrolling interests	(708)	(802)	2,756	(3,056)
Net income (loss) attributable to Enviri Corporation	(10,802)	2,079	(31,766)	(143,351)
Amounts attributable to Enviri Corporation common stockholders:
Income (loss) from continuing operations, net of tax	(8,495)	625	(32,260)	(113,408)
Income (loss) from discontinued operations, net of tax	(2,307)	1,454	494	(29,943)
Net income (loss) attributable to Enviri Corporation	$ (10,802)	$ 2,079	$ (31,766)	$ (143,351)
Weighted-average shares of common stock outstanding (in shares)	79,850	79,531	79,767	79,469
Basic earnings (loss) per common share attributable to Enviri Corporation common stockholders:
Continuing operations (in dollars per share)	$ (0.11)	$ 0.01	$ (0.40)	$ (1.43)
Discontinued operations (in dollars per share)	(0.03)	0.02	0.01	(0.38)
Basic earnings (loss) per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ (0.14)	$ 0.03	$ (0.40)	$ (1.80)
Diluted weighted-average shares of common stock outstanding (in shares)	79,850	79,567	79,767	79,469
Diluted earnings (loss) per common share attributable to Enviri Corporation common stockholders:
Continuing operations (in dollars per share)	$ (0.11)	$ 0.01	$ (0.40)	$ (1.43)
Discontinued operations (in dollars per share)	(0.03)	0.02	0.01	(0.38)
Diluted earnings (loss) per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ (0.14)	$ 0.03	$ (0.40)	$ (1.80)