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Notes Payable, Long-Term Borrowing, and Convertible Notes (Tables) | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Schedule of Debt | Notes payable, long-term borrowing, and convertible notes consist of the following (in thousands, except stated interest rate):
Note |  | Stated Interest Rate |  | Principal Balance |  | Capitalized Interest |  | Debt Premium (Discount) |  | September 30, 2025 |
2026 Convertible Notes |  | 3.25% |  | $ | 144,765 |  |  | $ | — |  |  | $ | (383) |  |  | $ | 144,382 |  |
2029 Convertible Notes |  | 7.5% |  | 177,506 |  |  | — |  |  | 9,393 |  |  | $ | 186,899 |  |
Note payable |  | 10.0% |  | 2,700 |  |  | 4,856 |  |  | — |  |  | 7,556 |  |
Bpifrance |  | 2.25% |  | 704 |  |  | — |  |  | — |  |  | 704 |  |
Other |  | 4.0% |  | 30 |  |  | 11 |  |  | — |  |  | 41 |  |
|  |  |  | $ | 325,705 |  |  | $ | 4,867 |  |  | $ | 9,010 |  |  | $ | 339,582 |  |
Note |  | Stated Interest Rate |  | Principal Balance |  | Capitalized Interest |  | Debt Premium (Discount) |  | December 31, 2024 |
2026 Convertible Notes |  | 3.25% |  | $ | 144,765 |  |  | $ | — |  |  | $ | (1,132) |  |  | $ | 143,633 |  |
2029 Convertible Notes |  | 7.5% |  | 177,506 |  |  | — |  |  | 11,244 |  |  | $ | 188,750 |  |
Note payable |  | 10.0% |  | 2,700 |  |  | 4,284 |  |  | — |  |  | $ | 6,984 |  |
Bpifrance |  | 2.25% |  | 1,042 |  |  | — |  |  | — |  |  | $ | 1,042 |  |
Other |  | 4.0% |  | 30 |  |  | 10 |  |  | — |  |  | 40 |  |
|  |  |  | $ | 326,043 |  |  | $ | 4,294 |  |  | $ | 10,112 |  |  | $ | 340,449 |  |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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