License, Collaboration and Other Significant Agreements - Changes in Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Contract liabilities:
Balance at End of Period	$ 44,561
Accounts receivable
Contract assets:
Balance at Beginning of Period	19,094	$ 3,045
Additions	92,612	38,795
Deductions	(109,836)	(20,427)
Balance at End of Period	1,870	21,413
Prepaid expenses and other current assets
Contract assets:
Balance at Beginning of Period	4,309	1,722
Additions	9,550	1,725
Deductions	(8,250)	(5)
Balance at End of Period	5,609	3,442
Deferred revenue
Contract liabilities:
Balance at Beginning of Period	42,380	40,559
Additions	66,307	65,890
Deductions	(64,126)	(62,792)
Balance at End of Period	44,561	43,657
Accounts payable
Contract liabilities:
Balance at Beginning of Period	3,171	7,227
Additions	0	0
Deductions	(3,171)	(7,227)
Balance at End of Period	0	0
Accrued expenses and other current liabilities
Contract liabilities:
Balance at Beginning of Period	0	10,000
Additions	0	0
Deductions	0	0
Balance at End of Period	$ 0	$ 10,000