In-Process Research and Development - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2019 |
Sep. 30, 2020 |
|
| Research And Development [Abstract] | ||
| Impairment of in-process research and development | $ 22,100 | |
| In-process research and development - held for sale | $ 4,500 | $ 4,500 |
| X | ||||||||||
- Definition Impairment of long lived assets held for sale. No definition available.
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| X | ||||||||||
- Definition In process research and development held for sale current. No definition available.
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| X | ||||||||||
- References No definition available.
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