License and Collaboration Agreements - Summary of Revenues (Details) - Gilead and Taiho - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
License and Development Services Revenue
License And Collaboration Agreements [Line Items]
Total collaboration and license revenues	$ 23,742		$ 48,374
Other Collaboration Revenue
License And Collaboration Agreements [Line Items]
Total collaboration and license revenues	9,839	$ 9,461	29,971	$ 28,383
Collaboration and License
License And Collaboration Agreements [Line Items]
Total collaboration and license revenues	$ 33,581	$ 9,461	$ 78,345	$ 28,383