Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Line Items]
Liability for unrecognized tax benefit, including related estimates of penalties and interest	$ 0	$ 0	$ 0	$ 0
Income tax provision	$ 15,000	23,000	$ 46,000	23,000
Income tax benefit		$ 17,000		$ 17,000
Projected annual effective tax rate	0.30%	0.20%	0.30%	0.10%
Statutory tax rate	21.00%		21.00%