Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Common stock, shares issued	39,736,914	19,677,249
Preferred Stock, Shares Issued	0	0
Revenue—related party	$ 9,730	$ 17,903
Regeneron Pharmaceuticals, Inc.
Related Party Transaction [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion	883,568
Revenue—related party	$ 9,700	$ 17,900
Accounts receivable	200
Deferred Revenue	$ 4,800
Regeneron Pharmaceuticals, Inc. | Series B Convertible Preferred Stock [ Member ]
Related Party Transaction [Line Items]
Common stock, shares issued	883,568
Preferred Stock, Shares Issued	7,125,552