Provision for Income Taxes - Summary of Valuation Allowance (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Valuation Allowance [Abstract] | ||
| Valuation allowance, at beginning of year | $ 49,005 | $ 35,233 |
| Increase in valuation allowance | 16,105 | 13,772 |
| Valuation allowance, at end of year | $ 65,110 | $ 49,005 |
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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