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Inventory
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Inventory Inventory
Inventory consists of the following (in thousands):
As of March 31, 2021As of December 31, 2020
Raw materials$16,892 $8,967 
Finished goods1,187 1,731 
Inventory$18,079 $10,698