Collaboration and License Agreements - Joint Venture and License Agreement with Visirna Therapeutics, Inc. (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Apr. 25, 2022 |
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||
| Proceeds from upfront capital | $ 60,000 | $ 0 | $ 0 | |
| Visirna Therapeutics, Inc. | Variable Interest Entity, Primary Beneficiary | ||||
| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||
| Proceeds from upfront capital | $ 60,000 | $ 60,000 | ||