Related Party Transactions - Additional Information (Detail) - USD ($)		1 Months Ended	12 Months Ended
	Aug. 30, 2021	Jan. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Related party transaction, amount paid				$ 1,404,000	$ 130,000
Payable to related party				258,000	14,314,000
Revenue				1,120,000	14,580,000
Celgene License Agreement [Member]
Related Party Transaction [Line Items]
Payments related to milestone				0	0
Payments related to royalties				0	0
Licensed drug manufacturing costs						$ 2,700,000	$ 1,200,000
Related party transaction, amount paid	$ 5,800,000
Related party transaction, percentage of outstanding payment obligation	50.00%
Payable to related party	$ 5,800,000
Related party transaction, balloon payment interest rate per annum	4.00%
Celgene License Agreement [Member] | EOC Pharma (Hong Kong) Limited [Member]
Related Party Transaction [Line Items]
Related party transaction, amount paid				2,800,000
Payable to related party				$ 200,000	2,800,000
Payment received from license agreement		$ 14,000,000.0
Sublicense fees, percentage		20.00%		20.00%
License expense, related party				$ 200,000	$ 2,800,000
Revenue				$ 1,000,000.0
Celgene License Agreement [Member] | EOC Pharma (Hong Kong) Limited [Member] | Scenario Forecast [Member]
Related Party Transaction [Line Items]
Related party transaction, amount paid			$ 200,000