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Inventories
 6 Months Ended
Jun. 30, 2023
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
Components of inventories as of June 30, 2023 and December 31, 2022 are as follows:
 June 30, 2023December 31, 2022
 (in thousands)
Finished goods$68,141 $60,481 
Raw materials5,287 3,734 
Parts and supplies6,477 6,432 
Work in progress1,928 1,466 
Total inventories
$81,833 $72,113 
Finished goods inventories include newly manufactured clear brine fluids as well as used brines that are repurchased from certain customers for recycling