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	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Revenue Recognition [Line Items]
Total research and development revenue, related party		$ 38,697	$ 15,635
Takeda Development Agreement
Revenue Recognition [Line Items]
Total research and development revenue, related party	$ 12,900
Millennium Pharmaceuticals Inc
Revenue Recognition [Line Items]
Total research and development revenue, related party		13,136	6,567
Millennium Pharmaceuticals Inc | Takeda Development Agreement
Revenue Recognition [Line Items]
Total research and development revenue, related party		13,114	6,068
Millennium Pharmaceuticals Inc | Takeda Multi Target Agreement
Revenue Recognition [Line Items]
Total research and development revenue, related party		$ 22	$ 499