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Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Deferred income tax expense (benefit)	$ 1,000	$ 0	$ 13,000	$ 0
Effective tax rate			(0.11%)	19.99%
Federal and state net Operating Losses	144,000,000		$ 144,000,000
Accruals related to uncertainties tax positions	$ 0	$ 0	$ 0	$ 0

X

- Definition

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

+ References

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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