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License and Collaboration Agreements - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 | Mar. 31, 2021 | Sep. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019
Research and License Agreements |  |  |  |  |
Revenue |  | $ 1,055,441 |  | $ 9,000,000 |
Apollomics, Inc. |  |  |  |  |
Research and License Agreements |  |  |  |  |
Up-front payment received |  |  |  |  | $ 9,000,000.0
Milestones based on achievement of certain clinical and regulatory events |  |  |  |  | 75,000,000.0
Milestone payment upon achievement of specified net sales thresholds for all licensed products |  |  |  |  | $ 105,000,000.0
Milestone revenue recognized based on achievement of certain clinical and regulatory events | $ 1,000,000.0 |  | $ 1,000,000.0 |  |
Revenue |  | $ 1,100,000 |  |  |
Apollomics, Inc. | Maximum |  |  |  |  |
Research and License Agreements |  |  |  |  |
Tiered percentage of annual net sales |  |  |  |  | 15.00%

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