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Inventories
 9 Months Ended
Sep. 30, 2021
Inventory, Net [Abstract]  
Inventories INVENTORIES
Inventories are stated at the lower of cost (first-in, first-out) or net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The components of inventories were as follows:
(in thousands)September 30, 2021December 31, 2020
  
Raw materials$59,609 $45,986 
Work-in-process24,617 20,374 
Finished goods174,258 143,513 
Inventories$258,484 $209,873