Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2017	Dec. 31, 2021
Tax Credit Carryforward [Line Items]
Unrecognized tax benefits	$ 0	$ 0	$ 0	$ 0
Gains Losses On Sales Of Non Real Estate	(2,841)	0	(4,806)	0
Interest or penalties related to uncertain tax positions	0	0	0	0
Deferred tax assets	500		500			$ 400
Deferred tax liability	1,900		$ 1,900			$ 1,800
Corporate income tax rate			21.00%		35.00%
Tax Year 2016 [Member]
Tax Credit Carryforward [Line Items]
Tax years open to examination			2018
Tax Year 2019 [Member]
Tax Credit Carryforward [Line Items]
Tax years open to examination			2021
General and Administrative Expense [Member]
Tax Credit Carryforward [Line Items]
Federal and state income tax expense (benefit)	1,700	$ 700	$ 3,600	$ 1,900
Gains Losses On Sales Of Non Real Estate	$ 900		$ 1,600