License Agreements (Detail) - USD ($)					1 Months Ended		12 Months Ended
	Jun. 27, 2022	Nov. 22, 2021	Aug. 30, 2021	Dec. 08, 2020	Dec. 31, 2021	Jan. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 21, 2021
Capitalized Contract Cost [Line Items]
Royalties on net product sales							$ 1,800,000	$ 1,100,000
Due to licensor							0	5,757,000
Upfront payment						$ 14,000,000
Total revenue							24,354,000	15,216,000	$ 14,000,000
Amount of certain development, regulatory, and sales milestones payments eligible to receive under license agreement.				$ 257,000,000
Right to terminate the agreement	120 days
BMS License Agreement
Capitalized Contract Cost [Line Items]
Payment of license fees			$ 5,800,000
Related party transaction, balloon payment interest rate per annum			4.00%
BMS License Agreement | EOC Pharma (Hong Kong) Limited
Capitalized Contract Cost [Line Items]
Payment received from license agreement						$ 14,000,000
BMS License Agreement
Capitalized Contract Cost [Line Items]
Payments related to milestone							$ 0	$ 0
License fees, percentage of previously outstanding payment obligation			50.00%
Due to licensor			$ 5,800,000
BMS License Agreement | EOC Pharma (Hong Kong) Limited
Capitalized Contract Cost [Line Items]
Payments related to milestone					$ 1,000,000
Due to licensor										$ 200,000
Sublicense fees, percentage					20.00%	20.00%
Total revenue		$ 1,000,000