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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of Carrying Values of Inventories
The carrying values of inventories are as follows (in thousands):
September 30, 2021December 31, 2020
Finished goods$101,167 $105,527 
Work in process21,657 17,021 
Obsolescence reserve(16,448)(25,477)
Inventories$106,376 $97,071