Stock Based Compensation - Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
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Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
Total stock-based compensation | $ 1,527 | $ 1,197 | $ 4,330 | $ 2,762 |
Research and Development | ||||
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
Total stock-based compensation | 655 | 331 | 1,690 | 827 |
General and Administrative | ||||
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] | ||||
Total stock-based compensation | $ 872 | $ 866 | $ 2,640 | $ 1,935 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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