Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	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