Research and Development Agreements - Schedule of Contract Assets and Contract Liabilities for Performance Obligations related to Collaboration Agreements (Parenthetical) (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Contract With Customer Asset And Liability [Line Items] | ||||
| Research and development revenue | $ 2,031,000 | $ 648,000 | $ 3,206,000 | $ 2,408,000 |
| Deferred Revenue | ||||
| Contract With Customer Asset And Liability [Line Items] | ||||
| Research and development revenue | $ 836,000 | |||
| X | ||||||||||
- Definition Contract with customer asset and liability. No definition available.
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| X | ||||||||||
- Definition Research and development revenues from collaboration agreements. No definition available.
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| X | ||||||||||
- Details
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