Research and Development Agreements - Schedule of Research and Development Revenue from Related Party Relates to Revenue from Research and Development Agreements (Detail)

v3.22.1

Research and Development Agreements - Schedule of Research and Development Revenue from Related Party Relates to Revenue from Research and Development Agreements (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue Recognition [Line Items]
Total research and development revenue	$ 8,486	$ 3,220
Millennium Pharmaceuticals Inc
Revenue Recognition [Line Items]
Total research and development revenue	2,586	237
Millennium Pharmaceuticals Inc | Takeda Development and License Agreement
Revenue Recognition [Line Items]
Total research and development revenue	0	215
Millennium Pharmaceuticals Inc | Takeda Multi-Target Agreement
Revenue Recognition [Line Items]
Total research and development revenue	$ 2,586	$ 22