Commitments and Contingencies - Master Services Agreement (Details) - USD ($)	Sep. 30, 2021	Oct. 05, 2020
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Lease liabilities	$ 1,123,000
Master Services Agreement With Integrium LLC, 2019
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Lease liabilities	0
Master Services Agreement With Integrium LLC, 2020
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Lease liabilities	$ 10,600,000
Master Services Agreement With Integrium LLC, 2020 | Maximum
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Consideration payable on achievement of milestones		$ 12,400,000