v3.26.3
Property, Plant and Equipment, Net - Summary of Property, Plant and Equipment, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Property, Plant and Equipment [Line Items]    
Less: Accumulated depreciation $ (272,917) $ (260,322)
Property, plant and equipment, net 86,637 89,741
Land and Land Improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment gross 399 399
Buildings and Improvements    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment gross 74,432 73,248
Machinery and Equipment    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment gross [1] $ 284,723 $ 276,416
[1] Includes $4,637 of platinum purchased in 2026 which is depleted based on actual usage. See Note 1, “Basis of Presentation,” for further discussion.