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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Goodwill | $ 16,937,000 |  | $ 16,937,000 |  | $ 16,937,000
Goodwill impairment loss | 0 | $ 0 | 0 | $ 0 |
Amortization expense of intangible assets |  |  | 918,000 | 918,000 |
Finite lived intangible assets, impairment charges |  |  | 832,000 |  |
Research and Development Expenses |  |  |  |  |
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Amortization expense of intangible assets | 300,000 | 300,000 | 900,000 | 900,000 |
Finite lived intangible assets, impairment charges | 800,000 |  |  |  |
Humabs |  |  |  |  |
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Indefinite-lived intangible assets IPR&D | 31,200,000 |  |  |  |
Impairment of intangible assets, indefinite-lived | $ 0 | $ 0 | 0 | $ 0 |
Humabs | Developed Technology |  |  |  |  |
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Acquisition of finite-lived intangible assets |  |  | 4,800,000 |  |
Statera | Developed Technology |  |  |  |  |
Schedule of Goodwill and Intangible Assets [Line Items] |  |  |  |  |
Acquisition of finite-lived intangible assets |  |  | $ 2,200,000 |  |

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