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Collaboration and License Agreements - Glaxosmithkline Intellectual Property (No. 3) Limited - Additional Information (Detail) $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Nov. 22, 2021 USD ($) obligation bundle | Oct. 03, 2018 USD ($) | Jan. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Sep. 30, 2021 USD ($)
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |
Revenues |  |  |  | $ 32,412 | $ 45,891 | $ 211,656 | $ 100,004 |
Contract liabilities |  |  |  | 84,288 |  | 84,288 |  | $ 111,055
Collaboration and License agreements |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |
Initial transaction price |  | $ 252,700 |  |  |  |  |  |
GSK | Collaboration and License agreements |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |
Milestone payment | $ 120,000 |  |  |  |  |  |  |
Milestone payment receivable at start of phase two | 30,000 |  |  |  |  |  |  |
Milestone payment receivable upon achievement of phase two and first patient dosed in phase three | 100,000 |  |  |  |  |  |  |
GSK | Collaboration and License agreements | Maximum |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |
Commercial milestone payments at first commercial sale | 190,000 |  |  |  |  |  |  |
Sales-related milestone payments | $ 590,000 |  |  |  |  |  |  |
GSK | ARO-HSD Agreement |  |  |  |  |  |  |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |  |  |  |  |  |  |
Number of distinct performance obligations | obligation | 1 |  |  |  |  |  |  |
Number of distinct bundle | bundle | 1 |  |  |  |  |  |  |
Initial transaction price | $ 120,000 |  |  |  |  |  |  |
Cash received as due under collaboration agreement |  |  | $ 120,000 |  |  |  |  |
Performance obligation related to agreement, upfront payment |  |  |  | 120,000 |  | 120,000 |  |
Revenues |  |  |  |  |  | 120,000 | $ 0 |
Contract assets |  |  |  | 0 |  | 0 |  |
Contract liabilities |  |  |  | $ 0 |  | $ 0 |  |

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