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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
Our inventories are comprised of the following:
As of September 30,As of December 31,
(in thousands)20212020
Raw materials$21,411 $19,716 
Work in process19,053 12,040 
Finished goods44,283 44,673 
Total inventories$84,747 $76,429