Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses and Other Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued preclinical and clinical trial expenses	$ 441	$ 479
Accrued professional fees	5,328	1,619
Accrued compensation and benefits	5,272	5,132
Accrued license fees	19,072	20,444
Accrued purchases	84	154
Operating lease liability	361	337
Accrued variable consideration	8,452	3,381
Accrued income tax	912	8,702
Due to licensor	12,055	13,127
Accrued interest payable	857	0
Other	374	238
Current accrued expenses and other liabilities	53,208	53,613
Lease liability – non-current	3,282	3,557
Due to licensor – non-current	3,144	14,064
Other – non-current	431	0
Non-current accrued expenses and other liabilities	6,857	17,621
Total accrued expenses and other liabilities	$ 60,065	$ 71,234