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INVENTORIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw material $ 78,733 $ 83,569
Work-in-process 36,485 48,369
Finished goods 178,461 201,418
Inventory, Net $ 293,679 $ 333,356