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Income Taxes - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2021 USD ($)
Income Taxes [Line Items] |
Net deferred tax asset | $ 0
Income tax expense | 0
Valuation allowance, net operating loss | $ 5,900,000
Estimated Annual Effective Tax Rate | 5.265%
Effective tax rate | 0.00%
Federal [Member] |
Income Taxes [Line Items] |
Net operating loss carryforwards subject to expiration | $ 204,000,000.0
Net operating loss carryforwards expiration year | 2025
Net operating loss carryforwards expiration year | 2038
Net operating loss carryforwards | $ 5,900,000
Foreign [Member] |
Income Taxes [Line Items] |
Net operating loss carryforwards subject to expiration | $ 64,800,000

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