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Collaborative Arrangements and Licensing Agreements, Janssen Biotech, Inc. (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Collaborative Arrangement and Licensing Agreement [Abstract] |  |  |  |  |
Revenue | $ 160,079 | $ 167,892 | $ 438,983 | $ 628,918 |
R&D Revenue [Member] |  |  |  |  |
Collaborative Arrangement and Licensing Agreement [Abstract] |  |  |  |  |
Revenue | 64,739 | 72,193 | 169,948 | 376,833 |
Janssen Biotech, Inc. [Member] |  |  |  |  |
Collaborative Arrangement and Licensing Agreement [Abstract] |  |  |  |  |
Cumulative payments received | 80,000 |  | 80,000 |  |
Revenue | 5,000 |  |  |  |
Deferred revenue | 0 |  | 0 |  | $ 0
Milestone payment achieved | 5,000 |  |  |  |
Next prospective payment | $ 5,000 |  | $ 5,000 |  |
Janssen Biotech, Inc. [Member] | Revenue [Member] | Strategic Partner [Member] |  |  |  |  |
Collaborative Arrangement and Licensing Agreement [Abstract] |  |  |  |  |
Concentration percentage | 3.00% |  | 1.00% |  |
Janssen Biotech, Inc. [Member] | R&D Revenue [Member] |  |  |  |  |
Collaborative Arrangement and Licensing Agreement [Abstract] |  |  |  |  |
Revenue | $ 5,000 | $ 0 | $ 5,000 | $ 0 |

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