Segment and Geographical Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) |
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] | ||||||||||||||||||
| Stock-based compensation expense | $ 29,539,000 | $ 1,191,000 | ||||||||||||||||
| Amortization of acquired intangibles | $ 7,900,000 | $ 0 | 15,200,000 | 0 | ||||||||||||||
| Cost of sales | (93,808,000) | (11,554,000) | (157,226,000) | (65,189,000) | ||||||||||||||
| Research and development | (71,532,000) | (45,774,000) | (139,041,000) | (93,786,000) | ||||||||||||||
| Selling, general and administrative | (47,540,000) | (12,571,000) | (93,160,000) | (25,323,000) | ||||||||||||||
| Interest income | 4,336,000 | 1,761,000 | 10,310,000 | 2,789,000 | ||||||||||||||
| Interest expense | (1,794,000) | (6,998,000) | (5,399,000) | (13,190,000) | ||||||||||||||
| Change in fair value of warrant liability | 4,309,000 | 5,107,000 | ||||||||||||||||
| Loss on extinguishment of debt | (30,400,000) | |||||||||||||||||
| Benefit (provision) for income taxes | (35,000) | 0 | 32,000 | 0 | ||||||||||||||
| Other (expense) income, net | 0 | 0 | (7,000) | 542,000 | ||||||||||||||
| Consolidated net loss | (92,319,000) | $ (96,676,000) | (63,778,000) | $ (60,093,000) | (188,995,000) | (123,871,000) | ||||||||||||
| Operating Segments [Member] | ||||||||||||||||||
| Segment Reporting [Line Items] | ||||||||||||||||||
| Revenue | 117,683,000 | 15,549,000 | 198,562,000 | 71,404,000 | ||||||||||||||
| Stock-based compensation expense | (17,027,000) | (760,000) | (29,539,000) | (1,191,000) | ||||||||||||||
| Depreciation and amortization | [1] | (9,309,000) | (3,920,000) | (20,762,000) | (7,916,000) | |||||||||||||
| Amortization of acquired intangibles | (5,000,000) | 0 | (10,000,000) | 0 | ||||||||||||||
| Cost of sales | [2] | (92,507,000) | (10,621,000) | (154,132,000) | (63,272,000) | |||||||||||||
| Research and development | [3] | (56,501,000) | (42,666,000) | (113,538,000) | (87,602,000) | |||||||||||||
| Selling, general and administrative | [4] | (29,889,000) | (10,165,000) | (56,823,000) | (20,097,000) | |||||||||||||
| Interest income | 4,336,000 | 1,761,000 | 10,310,000 | 2,789,000 | ||||||||||||||
| Interest expense | (1,717,000) | (6,998,000) | (5,399,000) | (13,190,000) | ||||||||||||||
| Change in fair value of warrant liability | (625,000) | (4,191,000) | (4,309,000) | (1,118,000) | ||||||||||||||
| One-time costs related to the IPO | [5] | 0 | (1,767,000) | 0 | (4,220,000) | |||||||||||||
| Transaction-related expenses | (2,724,000) | 0 | (4,633,000) | 0 | ||||||||||||||
| Gain on settlement of contingent liabilities | 926,000 | 0 | 1,307,000 | 0 | ||||||||||||||
| Benefit (provision) for income taxes | 35,000 | 0 | (32,000) | 0 | ||||||||||||||
| Other (expense) income, net | [6] | (0) | 0 | (7,000) | 542,000 | |||||||||||||
| Consolidated net loss | $ (92,319,000) | $ (63,778,000) | $ (188,995,000) | $ (123,871,000) | ||||||||||||||
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| X | ||||||||||
- Definition Gain on settlement of contingent liabilities No definition available.
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| X | ||||||||||
- Definition One Time Costs Related To The IPO No definition available.
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| X | ||||||||||
- Definition Transaction Related Expenses No definition available.
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| X | ||||||||||
- Definition Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest expense classified as nonoperating. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 | ||||||||||
- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 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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| X | ||||||||||
- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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