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Subsequent Event (Details) - USD ($) $ in Thousands |  |  | 9 Months Ended
--- | --- | --- | ---
Oct. 11, 2020 | Oct. 01, 2020 | Sep. 30, 2020 | Sep. 30, 2019
Subsequent Event [Line Items] |  |  |  |
Cash payments for acquisition |  |  | $ 26,857 | $ 11,840
Subsequent Event | Vernalis | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Expected proceeds from divestiture of business | $ 25,000 |  |  |
Subsequent Event | Pfenex Inc. |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Cash payments for acquisition |  | $ 437,500 |  |
Contingent consideration |  | $ 78,000 |  |

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