Employee Benefit Plan - Summary of Defined Contribution Plan (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
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| Compensation And Retirement Disclosure [Abstract] | ||||
| Employee benefit plan expenses | $ 78 | $ 49 | $ 198 | $ 105 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
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