Summary of Significant Accounting Policies - Reclassification (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Total revenue	$ 1,146,290	$ 475,598	$ 18,662
Reclassification [Line Items]
Total revenue	1,146,290	475,598	18,662
Government Contract | Revision of Prior Period, Adjustment
Accounting Policies [Abstract]
Total revenue		217,200	7,500
Reclassification [Line Items]
Total revenue		217,200	7,500
Grants
Accounting Policies [Abstract]
Total revenue	948,709	453,210	15,937
Reclassification [Line Items]
Total revenue	948,709	453,210	15,937
Grants | Revision of Prior Period, Adjustment
Accounting Policies [Abstract]
Total revenue		236,000	8,400
Reclassification [Line Items]
Total revenue		236,000	8,400
Royalties and other
Accounting Policies [Abstract]
Total revenue	197,581	22,388	2,725
Reclassification [Line Items]
Total revenue	$ 197,581	22,388	2,725
Royalties and other | Revision of Prior Period, Adjustment
Accounting Policies [Abstract]
Total revenue		22,400	2,700
Reclassification [Line Items]
Total revenue		$ 22,400	$ 2,700