License and Collaboration Agreement - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Deferred revenue - related party
Balance at Beginning of Period	$ 1,601
Payable to collaboration partner - related party
Balance at Beginning of Period	899
Balance at End of Period	80
Janssen | License and Collaboration Agreement
Receivable from collaboration partner - related party
Balance at Beginning of Period	1,566	$ 2,426
Additions	25,165	4,651
Deductions	(26,688)
Balance at End of Period	43	7,077
Deferred revenue - related party
Balance at Beginning of Period	1,601	14,477
Additions	25,757	3,924
Deductions	(27,358)	(16,392)
Balance at End of Period	0	2,009
Payable to collaboration partner - related party
Balance at Beginning of Period	899	2,732
Additions	30	8,664
Deductions	(849)
Balance at End of Period	$ 80	$ 11,396