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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Operating Loss Carryforwards [Line Items] |  |
Provision (benefit) for income taxes | $ 42 | $ (339)
Percentage of benefit/provision on pre-tax loss |  | 2.00%
State and Local Jurisdiction [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Portion of state deferred tax assets, not able to be utilized | 500 |
Federal [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Deferred tax assets valuation allowance | $ 3,000 |

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