Summary of Significant Accounting Policies - Summary of Useful Lives of Property and Equipment (Details)	9 Months Ended
	Sep. 30, 2021
Laboratory Equipment | Minimum
Property Plant And Equipment [Line Items]
Useful lives of property and equipment	3 years
Laboratory Equipment | Maximum
Property Plant And Equipment [Line Items]
Useful lives of property and equipment	5 years
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Useful lives of property and equipment	5 years
Leasehold Improvements
Property Plant And Equipment [Line Items]
Useful lives of property and equipment	Shorter of remaining lease term or estimated useful life
Computer Equipment
Property Plant And Equipment [Line Items]
Useful lives of property and equipment	3 years