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Organization and Description of the Business (Narrative) (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) item $ / shares | Dec. 31, 2022 $ / shares
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.01 | $ 0.01
Innoviva Strategic Opportunities LLC |  |  |
Total debt financing | $ | $ 90.0 | $ 90.0 |
Number of Directors |  | 3 |
Number of Board Directors |  | 8 |
Innoviva Strategic Opportunities LLC | Minimum [Member] |  |  |
Total number of shares (in percentage) |  | 49.50% |
Armata Pharmaceuticals, Inc. | Innoviva Strategic Opportunities LLC |  |  |
Outstanding equity (in percent) |  | 69.40% |

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