Collaborative Arrangement - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |||||
---|---|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||||
Deferred revenue, total | $ 1.6 | $ 6.8 | ||||
Abbott Agreement [Member] | ||||||
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||||
Collaborative arrangement payment received | 87.8 | |||||
Deferred revenue, total | $ 1.5 | |||||
Abbott Agreement [Member] | Upfront Payment [Member] | ||||||
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||||
Collaborative arrangement payment received | $ 25.0 | |||||
Abbott Agreement [Member] | Milestone Payment [Member] | ||||||
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | ||||||
Collaborative arrangement payment received | $ 27.0 | $ 15.0 | $ 10.8 | $ 10.0 |