Subsequent Event (Additional Information) (Details) - Subsequent Event - Biosion License Agreement	Mar. 28, 2022 USD ($)
Subsequent Event [Line Items]
Upfront fee	$ 10,000,000
Aggregate maximum obligation to pay future contingent milestone payments for normal approval	217,500,000
Aggregate maximum obligation to pay future contingent milestone payments for accelerated approval	$ 222,500,000
Royalty obligation period for licensed products upon first commercial sale	12 years