Research and Development Agreements - Schedule of Research and Development Revenues Disaggregated by Location (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Revenue Recognition [Line Items] | ||
| Total research and development revenue | $ 15,635 | $ 19,499 |
| JAPAN | ||
| Revenue Recognition [Line Items] | ||
| Total research and development revenue | 6,567 | 19,499 |
| UNITED STATES | ||
| Revenue Recognition [Line Items] | ||
| Total research and development revenue | $ 9,068 | $ 0 |
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- Definition Research and development revenues from collaboration agreements. No definition available.
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- Definition Revenue recognition. No definition available.
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