Goodwill and Other Intangible Assets- Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill, Impairment Loss		$ 104,580
Goodwill		759,253	$ 883,109	$ 889,048
Impaired asset write-downs		641	1,005	776
Clean Earth
Goodwill [Line Items]
Goodwill, Impairment Loss	$ (104,600)	104,580
Goodwill		379,299	483,879	482,647
Impaired asset write-downs		59	63	0
Harsco Environmental
Goodwill [Line Items]
Goodwill, Impairment Loss		0
Goodwill		379,954	399,230	406,401
Impaired asset write-downs		582	$ 942	$ 776
Altek Group
Goodwill [Line Items]
Impaired asset write-downs		15,000
Asset Impairment Charges, Carrying Value		$ 15,300