Research and Development Agreements - Schedule of Research and Development Revenues Disaggregated by Location (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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Revenue Recognition [Line Items] | ||
Research and development revenue | $ 231 | $ 1,760 |
JAPAN | ||
Revenue Recognition [Line Items] | ||
Research and development revenue | 163 | 1,260 |
UNITED STATES | ||
Revenue Recognition [Line Items] | ||
Research and development revenue | $ 68 | $ 500 |
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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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