Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Income Tax Disclosure [Line Items] | ||
| Valuation allowance | $ 56,035 | $ 53,222 |
| Net operating loss carryforwards federal | 179,100 | |
| Net operating loss carryforwards state | $ 110,100 | |
| Operating loss carryforwards, expiration period | 2022 | |
| Current income related to the GILTI | $ 15,000 | |
| Federal | ||
| Income Tax Disclosure [Line Items] | ||
| Research and development tax credit carryforwards | $ 2,100 | |
| Research and development tax credit carryforwards, expiration period | 2021 | |
| 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 Income tax disclosure. 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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