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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consist of the following components (dollars in thousands):
 September 30,
2021
December 31,
2020
Finished goods$76,930 $78,010 
Work in process30,880 29,680 
Raw materials46,520 41,690 
Total inventories$154,330 $149,380