CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues from continuing operations:
Revenues	$ 520,168	$ 481,052	$ 1,015,821	$ 933,849
Costs and expenses from continuing operations:
Cost of sales	406,627	403,199	807,315	780,218
Selling, general and administrative expenses	76,850	67,935	148,785	137,088
Research and development expenses	500	296	676	352
Goodwill impairment	0	104,580	0	104,580
Property, plant and equipment impairment charge	14,099	0	14,099	0
Other (income) expenses, net	(2,223)	2,045	(8,374)	866
Total costs and expenses	495,853	578,055	962,501	1,023,104
Operating income (loss) from continuing operations	24,315	(97,003)	53,320	(89,255)
Interest income	1,567	693	3,022	1,337
Interest expense	(25,724)	(16,692)	(50,052)	(31,784)
Facility fees and debt-related income (expense)	(2,730)	2,149	(5,093)	1,617
Defined benefit pension income (expense)	(5,407)	2,247	(10,742)	4,657
Income (loss) from continuing operations before income taxes and equity income	(7,979)	(108,606)	(9,545)	(113,428)
Income tax benefit (expense) from continuing operations	(10,319)	3,115	(17,242)	1,894
Equity income (loss) of unconsolidated entities, net	(309)	(114)	(442)	(245)
Income (loss) from continuing operations	(18,607)	(105,605)	(27,229)	(111,779)
Discontinued operations:
Income (loss) from discontinued businesses	7,556	1,879	8,175	(37,218)
Income tax benefit (expense) from discontinued businesses	(4,787)	(770)	(5,374)	5,821
Income (loss) from discontinued operations, net of tax	2,769	1,109	2,801	(31,397)
Net income (loss)	(15,838)	(104,496)	(24,428)	(143,176)
Less: Net (income) loss attributable to noncontrolling interests	4,399	(1,095)	3,464	(2,254)
Net income (loss) attributable to Enviri Corporation	(11,439)	(105,591)	(20,964)	(145,430)
Amounts attributable to Enviri Corporation common stockholders:
Income (loss) from continuing operations, net of tax	(14,208)	(106,700)	(23,765)	(114,033)
Income (loss) from discontinued operations, net of tax	2,769	1,109	2,801	(31,397)
Net income (loss) attributable to Enviri Corporation	$ (11,439)	$ (105,591)	$ (20,964)	$ (145,430)
Weighted-average shares of common stock outstanding (in shares)	79,816	79,509	79,725	79,437
Basic earnings (loss) per common share attributable to Enviri Corporation common stockholders:
Continuing operations (in dollars per share)	$ (0.18)	$ (1.34)	$ (0.30)	$ (1.44)
Discontinued operations (in dollars per share)	0.03	0.01	0.04	(0.40)
Basic earnings (loss) per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ (0.14)	$ (1.33)	$ (0.26)	$ (1.83)
Diluted weighted-average shares of common stock outstanding (in shares)	79,816	79,509	79,725	79,437
Diluted earnings (loss) per common share attributable to Enviri Corporation common stockholders:
Continuing operations (in dollars per share)	$ (0.18)	$ (1.34)	$ (0.30)	$ (1.44)
Discontinued operations (in dollars per share)	0.03	0.01	0.04	(0.40)
Diluted earnings (loss) per share attributable to Harsco Corporation common stockholders (in dollars per share)	$ (0.14)	$ (1.33)	$ (0.26)	$ (1.83)