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Consolidated Entities - Entasis Therapeutics Holdings, Inc. (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Feb. 17, 2022 USD ($) $ / shares | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) $ / shares shares | Sep. 30, 2020 USD ($) $ / shares shares | Jun. 30, 2020 USD ($) $ / shares shares | Jun. 30, 2022 USD ($) Director | Jun. 30, 2021 USD ($) $ / shares | Dec. 31, 2021 USD ($)
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Total debt |  | $ 549,704 |  |  |  | $ 549,704 |  | $ 433,484
Noncontrolling interest |  | 177,125 |  |  |  | 177,125 |  | $ 111,192
Net income attributable to noncontrolling interest |  | 20,432 | $ 21,898 |  |  | 42,517 | $ 37,470 |
Remeasurement loss |  |  |  |  |  | 7,700 |  |
Net loss attributable to Innoviva stockholders |  | 939 | 88,948 |  |  | $ 16,712 | 183,071 |
Entasis Therapeutics Holdings Inc |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of investee's board members which may be designated by the Company | Director |  |  |  |  |  | 2 |  |
Noncontrolling interest | $ 38,500 |  |  |  |  |  |  |
Increase/Decrease in fair value related to equity method investments |  |  | $ 64,700 |  |  | $ (7,800) | 53,200 |
Decrease for acquisition related costs |  |  |  |  |  |  | $ 100 |
Increase for acquisition related costs |  |  |  |  |  | 100 |  |
Equity investment ownership percentage | 59.90% |  |  |  |  |  |  |
Net loss attributable to Innoviva stockholders |  | $ 11,700 |  |  |  | $ 16,300 |  |
Entasis Therapeutics Holdings Inc | Securities Purchase Agreement | Convertible Promissory Note |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Total debt | $ 15,000 |  |  |  |  |  |  |
Debt instrument maturity date | Aug. 18, 2022 |  |  |  |  |  |  |
Debt Instrument, annual interest rate | 0.59% |  |  |  |  |  |  |
Conversion price (dollars per share) | $ / shares | $ 1.48 |  |  |  |  |  |  |
Entasis Therapeutics Holdings Inc | Common stock |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of shares to be purchased under the securities purchase agreement | shares |  |  |  | 4,672,897 | 14,000,000 |  |  |
Fair value of equity securities | $ 64,500 |  |  |  |  |  |  |
Entasis Therapeutics Holdings Inc | Common stock | Innoviva Strategic Opportunities, LLC |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of shares to be purchased under the securities purchase agreement | shares |  |  | 10,000,000 |  |  |  |  |
Entasis Therapeutics Holdings Inc | Warrants |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of warrants purchased under the securities purchase agreement | shares |  |  |  | 4,672,897 | 14,000,000 |  |  |
Fair value of equity securities | $ 31,400 |  |  |  |  |  |  |
Entasis Therapeutics Holdings Inc | Warrants | Innoviva Strategic Opportunities, LLC |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of shares to be purchased under the securities purchase agreement | shares |  |  | 10,000,000 |  |  |  |  |
Entasis Therapeutics Holdings Inc | Common stock and warrants |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Payments to acquire equity securities |  |  |  | $ 12,500 | $ 35,000 |  |  |
Entasis Therapeutics Holdings Inc | Common stock and warrants | Innoviva Strategic Opportunities, LLC |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Payments to acquire equity securities |  |  | $ 20,000 |  |  |  |  |
Entasis Therapeutics Holdings Inc | Warrants acquired in second quarter of 2021 |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Exercise price of warrants | $ / shares |  |  | $ 2.00 |  |  |  | $ 2.00 |
Term of warrants |  | 5 years |  |  |  | 5 years |  |
Entasis Therapeutics Holdings Inc | Warrants acquired in third quarter of 2020 |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Exercise price of warrants | $ / shares |  |  |  | $ 2.675 |  |  |  |
Term of warrants |  | 5 years |  |  |  | 5 years |  |
Entasis Therapeutics Holdings Inc | Warrants acquired in second quarter of 2020 |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Exercise price of warrants | $ / shares |  |  |  |  | $ 2.50 |  |  |
Term of warrants |  | 5 years |  |  |  | 5 years |  |

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