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Development and License Agreements - Summary of Prepaid R&D Asset and Manufacturing Efficiency Asset (Detail) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Other current assets |  |  |
Deferred Costs Capitalized Prepaid And Other Assets [Line Items] |  |  |
Prepaid R&D asset - current | [1] | $ 33 | $ 114
Other assets |  |  |
Deferred Costs Capitalized Prepaid And Other Assets [Line Items] |  |  |
Prepaid R&D asset - current | [2] | 2,176 | 2,162
Manufacturing efficiency asset | [2] | $ 1,656 | $ 1,839
[1] | Included in “Other current assets” in the Company's consolidated balance sheets.
[2] | Included in “Other assets” in the Company's consolidated balance sheets

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- Definition Manufacturing efficiency assets. + References No definition available. + Details
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