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Inventories (Tables)
12 Months Ended
Dec. 31, 2020
Inventory, Net [Abstract]  
Schedule of Components of Inventories The components of inventories are as follows:
(in thousands)December 31, 2020December 31, 2019
  
Raw materials$45,986 $41,202 
Work-in-process20,374 20,077 
Finished goods143,513 133,740 
Inventories$209,873 $195,019