Commitments and Contingencies - Collaborative Arrangements and Non-collaborative Arrangement (Details) - WIBR
$ in Millions
9 Months Ended
Sep. 30, 2021
USD ($)
Collaborative Arrangements and Non-collaborative Arrangement  
Aggregate milestone payments $ 1.6
Maximum | License maintenance fees  
Collaborative Arrangements and Non-collaborative Arrangement  
License costs $ 0.1