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Inventory - Components of Inventory (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 678 $ 1,763
Work in process 74,025 62,635
Finished goods 8,207 14,661
Total inventory 82,910 79,059
Balance Sheet Classification:    
Inventory 39,422 38,195
Other assets $ 43,488 $ 40,864