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License Agreements - Calithera (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 shares | Jan. 31, 2017 USD ($) $ / shares | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) | Dec. 31, 2017 shares | Dec. 31, 2021 USD ($)
License Agreements |  |  |  |  |  |  |  |
Fair market long term investments |  |  | $ 149,124 |  | $ 149,124 |  |  | $ 221,266
Unrealized gain (loss) on long term investments |  |  | (660) | $ (27,450) | (72,142) | $ (28,394) |  |
Calithera |  |  |  |  |  |  |  |
License Agreements |  |  |  |  |  |  |  |
Fair market long term investments |  |  | 300 |  | 300 |  |  | $ 1,100
Calithera | Other Comprehensive Income (Loss) |  |  |  |  |  |  |  |
License Agreements |  |  |  |  |  |  |  |
Unrealized gain (loss) on long term investments |  |  | $ 0 | $ 200 | $ (900) | $ (4,600) |  |
Calithera |  |  |  |  |  |  |  |
License Agreements |  |  |  |  |  |  |  |
Funding of future development costs (as a percent) |  | 70.00% |  |  |  |  |  |
Stock purchase agreement | Calithera |  |  |  |  |  |  |  |
License Agreements |  |  |  |  |  |  |  |
Purchase of common stock under Stock Purchase Agreement (in shares ) | shares |  |  |  |  |  |  | 1,700,000 |
Purchase price of common stock |  | $ 8,000 |  |  |  |  |  |
Per share price (In USD per share) | $ / shares |  | $ 4.65 |  |  |  |  |  |
Effected stock split (as a percent) | 0.05 |  |  |  |  |  |  |
Ownership (in shares) | shares | 86,021 |  |  |  |  |  |  |

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