Income Tax - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Tax Credit Carryforward [Line Items]
Unrecognized tax benefits	$ 0	$ 0
Effective income tax rate	(0.20%)	(1.20%)
Interest or penalties related to uncertain tax positions	$ 0	$ 0
Liabilities for interest and potential penalties	$ 0	$ 0

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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