Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Income Tax Disclosure [Line Items] | ||
| Valuation allowance | $ 57,679 | $ 52,161 |
| Net operating loss carryforwards federal | 194,900 | |
| Net operating loss carryforwards state | $ 201,200 | |
| Operating loss carryforwards, expiration period | 2038 | |
| Decrease in Deferred Tax Asset For Valuation Allowance | 3,900 | |
| Decrease in tax asset for stock compensation | 3,900 | |
| Net Operating Loss Amount Utilized | $ 0 | 0 |
| R&D Credits Utilized Amount | 0 | $ 0 |
| Current income related to the GILTI | 0 | |
| Federal | ||
| Income Tax Disclosure [Line Items] | ||
| Research and development tax credit carryforwards | $ 2,000 | |
| Research and development tax credit carryforwards, expiration period | 2037 | |
| State | Indefinite Life | ||
| Income Tax Disclosure [Line Items] | ||
| Research and development tax credit carryforwards | $ 2,100 | |
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- Definition Current income related to global intangible low-taxed income. No definition available.
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- Definition Deferred Tax Assets Research And Development Credits Amount Utilized No definition available.
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- Definition Income tax disclosure. No definition available.
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- Definition Net Operating Loss Amount Utilized No definition available.
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- Definition Operating loss carryforwards expirations period. No definition available.
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- Definition Research and development federal tax credit carryforwards expiration date year, in ccyy format. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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- Definition The increase (decrease) during the reporting period in the obligation created by employee agreements whereby earned compensation will be paid in the future. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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