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Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Inventories    
Raw materials $ 1,797,858 $ 1,870,300
Supplies 601,480 552,616
Work in progress 314,658 402,207
Finished goods 662,536 706,007
Total inventories $ 3,376,532 $ 3,531,130