Commitments and Contingencies - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended	9 Months Ended
	Oct. 31, 2021	Aug. 31, 2021	Sep. 30, 2022	Sep. 30, 2022
Commitments And Contingencies [Line Items]
Operating lease, weighted average remaining lease term			10 years 3 months 18 days	10 years 3 months 18 days
Operating lease, weighted average discount rate			8.00%	8.00%
Operating lease expense			$ 900,000	$ 1,900,000
San Diego, California
Commitments And Contingencies [Line Items]
Operating lease commencement date		Sep. 01, 2021
Operating lease term of contract		14 months
Operating lease, option to extend				There are no options to extend the term or early termination provisions.
Operating lease, existence of option to extend		false
Torrey Plaza
Commitments And Contingencies [Line Items]
Operating lease commencement date	Apr. 01, 2022
Operating lease term of contract	130 months
Operating lease, renewal term	5 years
Operating lease, option to extend				option to extend
Operating lease, existence of option to extend	true
Letter of credit	$ 800
Torrey Plaza | Letter of Credit [Member]
Commitments And Contingencies [Line Items]
Percentage of letter of credit subject to certain conditions	50.00%
Cell Line License Agreement | Wu Xi Biologics
Commitments And Contingencies [Line Items]
Non-refundable license fee paid				$ 200,000
Maximum payment to buy out royalty obligation				$ 15,000,000.0