Stockholders' Equity - Additional Information (Details) - USD ($)	Apr. 03, 2018	Dec. 31, 2021
Class of Stock [Line Items]
Stock issued during period subject to lock-up and stand-still provisions period	5 years
Aggregate offering price		$ 300,000,000
Common Stock
Class of Stock [Line Items]
Sale of stock to Bristol-Myers Squibb (in shares)	8,284,600

Number of new stock issued during the period.

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Period Type:	duration