Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES - Summary of Inventories (Details)

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INVENTORIES - Summary of Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 113,204 $ 66,487
Work in process 1,227 562
Finished goods 81,545 44,650
Total inventories $ 195,976 $ 111,699