XML 53 R43.htm IDEA: XBRL DOCUMENT v3.22.1
Select Balance Sheet Information - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Finished Goods $ 37,195 $ 39,903
Work in Process 33,962 35,705
Raw Material, Fuel and Supplies 74,700 72,882
Inventories $ 145,857 $ 148,490