License Agreements - Additional Information (Detail) - USD ($)				1 Months Ended			3 Months Ended		9 Months Ended
	Nov. 22, 2021	Aug. 30, 2021	Dec. 08, 2020	Dec. 31, 2021	Jan. 31, 2021	Dec. 31, 2020	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 21, 2021
Capitalized Contract Cost [Line Items]
Total revenue							$ 7,212,000	$ 5,959,000	$ 18,744,000	$ 18,028,000
BMS License Agreement
Capitalized Contract Cost [Line Items]
Royalties accrued on product sales							500,000	400,000	1,400,000	1,300,000
Payments related to sublicense fees							0	$ 0	$ 0	$ 0
Payment of license fees		$ 5,800,000					$ 5,800,000
License fees, percentage of previously outstanding payment obligation		50.00%
Due To Licensor		$ 5,800,000
Related party transaction, balloon payment interest rate per annum		4.00%
EOC License Agreement
Capitalized Contract Cost [Line Items]
Upfront payment					$ 14,000,000.0
Total revenue						$ 14,000,000.0
Amount of certain development, regulatory, and sales milestones payments eligible to receive under license agreement			$ 257,000,000
EOC License Agreement | EOC Pharma (Hong Kong) Limited
Capitalized Contract Cost [Line Items]
Due To Licensor											$ 200,000
Payment received from license agreement					$ 14,000,000.0
Sublicense fees, percentage			20.00%	20.00%
Total revenue	$ 1,000,000
Payments related to milestone				$ 1,000,000