Collaboration and License Agreements - Memorial Sloan Kettering Cancer Center License Agreement (Details) - Amended MSK License - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Collaboration agreement
Enterprise value milestone payment	$ 75.0	$ 75.0
Stock price appreciation milestone payable			$ 20.0
Change in fair value of enterprise value milestones	5.9	14.2
Enterprise value milestones liability at fair value	$ 9.9	$ 9.9