Research Collaboration and Exclusive License Agreement - Additional Information (Detail) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) Target	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Research And Development Arrangement Contract To Perform For Others [Line Items]
Deferred revenue current	$ 94	$ 94		$ 94		$ 1,705
Accounts receivable balance outstanding	7,500	7,500		$ 7,500		$ 0
First Collaboration Target
Research And Development Arrangement Contract To Perform For Others [Line Items]
Developmental milestone	7,500
Merck Agreement
Research And Development Arrangement Contract To Perform For Others [Line Items]
Number of collaboration targets | Target				2
Non-refundable and non-creditable upfront fee				$ 8,000
Payable upon selection of second collaboration target	8,000	8,000		8,000
Milestone payments				285,000
Revenue recognized		8,900	$ 1,100	10,100	$ 3,100
Deferred revenue current	$ 100	$ 100		100
Merck Agreement | Maximum
Research And Development Arrangement Contract To Perform For Others [Line Items]
Milestone payments per collaboration target				142,500
Milestone payments upon successful completion of certain commercial milestones				$ 350,000