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Commitments and Contingencies - Additional Information (Details) - USD ($) |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 09, 2020 | Aug. 10, 2020 | Mar. 31, 2021 | Jun. 30, 2021 | Dec. 31, 2020
Arctic Vision License Agreement |  |  |  |  |
Upfront payment received |  | $ 4,000,000.0 |  |  |
Deferred license fees |  |  | $ 2,000,000.0 | $ 2,000,000.0 |
Deferred license cost |  |  | 800,000 | 800,000 |
Maximum additional payments receivable |  | 41,750,000 |  |  |
Royalty payments earned |  |  |  | 0 |
Milestone payments earned |  |  |  |  | $ 2,000,000.0
Bausch License Agreement |  |  |  |  |
Upfront payment received | $ 10,000,000.0 |  |  |  |
Maximum additional payments receivable | $ 35,000,000.0 |  |  |  |
Royalty payments earned |  |  |  | 0 |
Milestone payments earned |  |  |  | $ 0 |
Senju License Agreement |  |  |  |  |
Upfront payment received |  |  | $ 4,000,000.0 |  |
Deferred license fees |  | $ 4,000,000.0 |  |  |

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- Details
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- Details
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- Details
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