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INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw material $ 93,566 $ 78,733
Work-in-process 40,174 36,485
Finished goods 179,732 178,461
Inventory, Gross $ 313,472 $ 293,679