Segment Reporting - Schedule of Disaggregation of Income Statement Expenses (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Segment Reporting [Line Items] | ||||||
| General and administrative | $ 34,925 | $ 32,040 | $ 67,996 | $ 64,699 | ||
| Total operating expenses | 302,777 | 226,219 | 648,627 | 407,012 | ||
| Total other income, net | 18,475 | 59,646 | 43,703 | 99,721 | ||
| Net loss | 284,302 | $ 320,622 | 166,573 | $ 140,718 | 604,924 | 307,291 |
| Reportable Segment | ||||||
| Segment Reporting [Line Items] | ||||||
| Research and development - external costs | 208,844 | 144,730 | 465,276 | 248,535 | ||
| Research and development - internal costs | 59,008 | 49,449 | 115,355 | 93,778 | ||
| General and administrative | 34,925 | 32,040 | 67,996 | 64,699 | ||
| Total operating expenses | 302,777 | 226,219 | 648,627 | 407,012 | ||
| Total other income, net | 18,475 | 59,646 | 43,703 | 99,721 | ||
| Net loss | $ 284,302 | $ 166,573 | $ 604,924 | $ 307,291 | ||
| X | ||||||||||
- Definition External Research and Development Expense No definition available.
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- Definition Internal Research and Development Expense No definition available.
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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- Details
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