Summary of Significant Accounting Policies - Schedule of Customers with Amounts due that Represent 10% or Greater of our Consolidated Accounts Receivable Net Balance (Detail) - Accounts Receivable [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Antengene [Member]
Percentage of concentration	3.00%	47.00%
Menarini [Member]
Percentage of concentration	17.00%	2.00%
Customer A [Member]
Percentage of concentration	31.00%	21.00%
Customer B [Member]
Percentage of concentration	22.00%	21.00%
Customer C [Member]
Percentage of concentration	11.00%	6.00%