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Net Loss per Share (Antidilutive Shares Excluded from Computation of Diluted Shares Outstanding) (Details) - USD ($) $ / shares in Units, $ in Millions | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024 | Jan. 10, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 39,916,686 | 23,341,812 |
Innoviva Strategic Opportunities LLC | Secured term loan |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Convertible loan principal amount | $ 30.0 |  |
Accrued and unpaid interest | $ 6.6 |  |
Interest rate (as a percent) | 8.00% |  | 8.00%
Price per share | $ 1.52 |  | $ 1.52
Outstanding stock options |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 5,012,648 | 3,755,965 |
Unvested restricted stock units |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 152,500 | 220,000 |
Shares issuable upon the conversion of the Convertible Loan |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 24,096,491 |  |
Outstanding warrants |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of diluted weighted shares outstanding | 10,655,047 | 19,365,847 |

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