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Collaboration and Other Agreements - Janssen (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Collaboration and Other Agreements [Line Items] |  |  |  |
Revenues |  | $ 104,883 | $ 64,188 | $ 60,121
Janssen Biotech Inc. | Janssen Collaboration And License Agreement |  |  |  |
Collaboration and Other Agreements [Line Items] |  |  |  |
Non-refundable upfront payment | $ 20,000 |  |  |
Potential milestone payments and royalties on product sales | $ 312,000 | 312,000 |  |
Potential proceeds from royalties percent | 10.00% |  |  |
Transaction price | $ 22,200 | $ 22,200 |  |
Clinical trial activities selling price amount | 2,200 |  |  |
Janssen Biotech Inc. | Janssen Collaboration And License Agreement | Revenues From License Agreements |  |  |  |
Collaboration and Other Agreements [Line Items] |  |  |  |
Revenues | $ 20,000 |  |  |

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