License and Asset Purchase Agreements - Schedule of License and Other Revenue (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Total license and other revenue	$ 34,022	$ 36,629	$ 111,383
License and Other Revenue [Member] | Menarini [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Total license and other revenue	24,360	15,672	75,000
License and Other Revenue [Member] | Antengene [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Total license and other revenue	2,713	13,353	30,429
Other [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Total license and other revenue	$ 6,949	$ 7,604	$ 5,954