License and Collaboration Agreements - Summary of Changes in Balances of Receivables, Contract Assets and Deferred Revenue (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accounts receivable, net, current and non-current:
Balance, beginning of period	$ 20,161,000	$ 29,106,000	$ 29,586,000	$ 34,701,000
Balance, end of period	22,523,000	39,534,000	22,523,000	39,534,000
Contract assets:
Balance, beginning of period	2,000,000	1,126,000	0	1,074,000
Balance, end of period	2,000,000		2,000,000
Deferred revenue, current and non-current:
Balance, beginning of period	1,311,000	3,333,000	1,829,000	3,333,000
Balance, end of period	448,000	6,636,000	448,000	6,636,000
Revenue recognized during the period from:
Amounts included in deferred revenue at beginning of period	891,000		1,409,000
Performance obligations satisfied in previous periods	$ 18,907,000	$ 28,420,000	$ 37,040,000	$ 49,961,000