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Commitments and Contingencies - Licenses to Patented Technology (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2018 | Jun. 26, 2017
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Commercial milestone payments |  |  | $ 24.0
Consideration paid | $ 6.9 |  |
Sublicense agreement |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Expenses associated with license agreements |  | $ 22.0 |
Therapeutic and prophylactic products |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Development and regulatory milestone payments |  |  | 1.5
Diagnostic products |  |  |
Research and Development Arrangement, Contract to Perform for Others [Line Items] |  |  |
Development and regulatory milestone payments |  |  | $ 0.5

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