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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventory, Net [Abstract]  
Schedule of components of inventories The components of inventories were as follows:
(in thousands)September 30, 2020December 31, 2019
  
Raw materials$46,791 $41,202 
Work-in-process19,582 20,077 
Finished goods151,224 133,740 
Inventories$217,597 $195,019