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License Agreement - Additional Information (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 30, 2024 | Apr. 30, 2019 | Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2019 | Aug. 31, 2010
License Agreement [Line Items] |  |  |  |  |  |  |  |
Annual minimum royalty obligations |  |  |  |  |  |  |  | $ 0.2
Immuno Gen Inc |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
Milestone payment | $ 5.0 |  |  |  |  |  |  |
Clinical Development Milestone Payment | 35.0 |  |  |  |  |  |  |
Remaining potential development milestone payments | 30.0 |  |  |  |  |  |  |
Immuno Gen Inc | First Phase 2 Study |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
Remaining potential development milestone payments | 10.0 |  |  |  |  |  |  |
Immuno Gen Inc | First Phase 3 Study |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
Remaining potential development milestone payments | $ 20.0 |  |  |  |  |  |  |
Immuno Gen Inc | Collaborative Arrangement |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
Upfront payment received |  |  |  |  |  |  | $ 7.5 |
Immuno Gen Inc | Clinical development milestones | Maximum |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
Milestone payment |  |  |  |  |  |  | 35.0 |
Immuno Gen Inc | Regulatory approval and commercial milestone | Maximum |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
Milestone payment |  |  |  |  |  |  | $ 320.0 |
UCSB |  |  |  |  |  |  |  |
License Agreement [Line Items] |  |  |  |  |  |  |  |
License Payment Term One |  | 2031-01 |  |  |  |  |  |
Annual license maintenance fee |  | $ 0.8 |  |  |  |  |  |
Percentage of remaining maintenance fees outstanding |  | 50.00% |  |  |  |  |  |
Sublicense fees |  |  | $ 0.0 | $ 0.0 | $ 0.9 | $ 1.1 |  |

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