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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating Loss Carryforwards [Line Items]
Benefit for income taxes	$ (1,370)	$ (483)	$ (3,008)	$ (5,816)
Percentage of benefit/provision on pre-tax loss			7.00%	14.00%
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Portion of state deferred tax assets, not able to be utilized	$ 3,700		$ 3,700
Federal [Member]
Operating Loss Carryforwards [Line Items]
Deferred tax assets valuation allowance			$ 7,000

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