License Agreements Between Navire and LianBio - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue		$ 2,344,000	$ 8,127,000	$ 56,830,000	$ 8,127,000
License Revenue
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue		1,585,000	8,127,000	55,084,000	8,127,000
LianBio | License Agreement
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Nonrefundable upfront payment receivable			$ 8,000,000.0		$ 8,000,000.0
LianBio | License Agreement | Maximum
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Future potential development and sales milestone payments yet to receive	$ 382,100,000
LianBio | License Agreement | License Revenue
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenue		$ 0		$ 8,500,000