v3.26.1
Property, Plant and Equipment - Components - New Enviri (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Property, Plant and Equipment    
Gross property, plant and equipment $ 2,127,526 $ 2,124,622
Less: Accumulated depreciation (1,437,435) (1,424,958)
Property, plant and equipment, net 690,091 699,664
New Enviri    
Property, Plant and Equipment    
Gross property, plant and equipment 1,693,721 1,705,401
Less: Accumulated depreciation (1,282,870) (1,281,302)
Property, plant and equipment, net 410,851 424,099
Land    
Property, Plant and Equipment    
Gross property, plant and equipment 97,718 95,324
Land | New Enviri    
Property, Plant and Equipment    
Gross property, plant and equipment 24,318 24,541
Buildings and improvements    
Property, Plant and Equipment    
Gross property, plant and equipment 254,336 250,452
Buildings and improvements | New Enviri    
Property, Plant and Equipment    
Gross property, plant and equipment 162,267 162,000
Machinery and equipment    
Property, Plant and Equipment    
Gross property, plant and equipment 1,723,342 1,731,009
Machinery and equipment | New Enviri    
Property, Plant and Equipment    
Gross property, plant and equipment 1,481,197 1,493,339
Uncompleted construction    
Property, Plant and Equipment    
Gross property, plant and equipment 52,130 47,837
Uncompleted construction | New Enviri    
Property, Plant and Equipment    
Gross property, plant and equipment $ 25,939 $ 25,521