Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income tax (benefit) expense	$ (554,000)	$ 1,140,000	$ (1,000)	$ 1,850,000
Unrecognized tax benefits, period change			0
Interest and penalties related to uncertain tax positions			$ 0