Segment Reporting - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Segment Reporting [Line Items] | ||||
| Segment revenue | $ (188) | $ 240 | $ 238,729 | $ 4,486 |
| Research and development | ||||
| Selling, general and administrative | 24,430 | 22,231 | 77,965 | 68,458 |
| Restructuring, long-lived assets impairment and related charges, net | 0 | 0 | 0 | (182) |
| Segment and consolidated net loss | (96,252) | (163,141) | (141,867) | (395,064) |
| Reportable Segment | ||||
| Segment Reporting [Line Items] | ||||
| Segment revenue | (188) | 240 | 238,729 | 4,486 |
| Less: Segment expenses | ||||
| Cost of revenue | 0 | (11) | 0 | 0 |
| Research and development | ||||
| Contract manufacturing | 25,755 | 9,644 | 85,729 | 33,043 |
| Personnel | 25,797 | 27,677 | 85,837 | 94,560 |
| Clinical costs | 22,785 | 21,017 | 71,451 | 61,984 |
| Licenses, collaborations and contingent consideration, net | (11,852) | 76,414 | 26,550 | 124,306 |
| Other R&D | 17,555 | 16,711 | 54,678 | 53,724 |
| Selling, general and administrative | 24,430 | 22,231 | 77,965 | 68,458 |
| Restructuring, long-lived assets impairment and related charges, net | 0 | 0 | 0 | (182) |
| Plus: Other segment items | 8,406 | 10,302 | 21,614 | 36,343 |
| Segment and consolidated net loss | $ (96,252) | $ (163,141) | $ (141,867) | $ (395,064) |
| X | ||||||||||
- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Research And Development, Clinical Costs No definition available.
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- Definition Research And Development, Contract Manufacturing No definition available.
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| X | ||||||||||
- Definition Research And Development, Licenses, Collaborations And Contingent Consideration No definition available.
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- Definition Research And Development, Other No definition available.
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- Definition Research And Development, Personnel No definition available.
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- Definition Segment Expenses No definition available.
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- Details
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