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INVENTORIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Finished goods $ 114,029 $ 122,510
Work in process 8,519 19,721
Obsolescence reserve (25,477) (12,867)
Inventories $ 97,071 $ 129,364