License Agreements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Revenue from contract with customer, license and other revenue	$ 37,929	$ 42,786	$ 67,944	$ 75,912
Antengene [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Other milestone method revenue recognized		2,000
Menarini [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Reimbursement of development related expenses	6,500	7,100	13,500	13,000
Milestone method revenue recognized		4,000		4,000
License and other revenue [Member] \| Accounts Receivable 1 [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Revenue from contract with customer, license and other revenue			10,700		$ 2,900
Royalty [Member] \| Antengene [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Revenue from contract with customer, license and other revenue	500	500	1,100	1,000
Royalty [Member] \| Menarini [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Revenue from contract with customer, license and other revenue	1,000	$ 700	1,900	1,100
Other Royalty [Member] \| Antengene [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Revenue from contract with customer, license and other revenue	$ 100		$ 200	$ 2,000