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Inventories
12 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following:
As of December 31,
20202019
(in thousands)
Raw materials
$46,232 $26,247 
Work-in-process
161,324 107,021 
Finished goods
73,221 34,234 
Total
$280,777 $167,502