Nature of Business (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 41 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Sep. 30, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||||||||
| Accumulated deficit | $ 794,907 | $ 794,907 | $ 457,169 | |||||||
| Cash, cash equivalents, and investments | 624,700 | 624,700 | ||||||||
| Net loss | $ 57,328 | $ 241,071 | $ 39,339 | $ 36,932 | $ 43,274 | $ 42,211 | 337,738 | $ 122,417 | ||
| Net cash used in operating activities | $ 115,123 | $ 104,528 | ||||||||
| Proceeds from issuance of equity | $ 1,400,000 | |||||||||
| X | ||||||||||
- Definition Sum of investments and unrestricted cash as of the balance sheet date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. 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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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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