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License Agreements - Additional Information (Detail) - Kyowa Kirin Co. Ltd - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jul. 14, 2023 | Jun. 30, 2023 | Apr. 30, 2020
Related Party Transaction [Line Items] |  |  |
Total upfront payment receivable for grant of rights |  |  | $ 100.0
Termination Agreement | Jul. 14, 2023 |  |
Kkc Agreements [Member] | US License [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Deferred revenue |  | $ 64.5 |
Kkc Agreements [Member] | Development Services |  |  |
Related Party Transaction [Line Items] |  |  |
Transaction price of deferred revenue remaining performance obligations |  | $ 0.3 |

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