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INVENTORIES (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Finished goods $ 129,397 $ 122,510
Work in process 16,616 19,721
Obsolescence reserve (14,185) (12,867)
Inventories $ 131,828 $ 129,364