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Inventories (Tables)
6 Months Ended
Jun. 30, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following:
(in thousands)June 30, 2023December 31, 2022
Finished goods$29,511 $28,630 
Raw materials2,025 3,116 
Parts, supplies and other47,338 45,772 
Total inventories$78,874 $77,518