Fair Value - Schedule of Fair Value of Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financial assets:
Cash and cash equivalents	$ 29,380	$ 27,913
Restricted cash	143	1,400	$ 986
Rent and other receivables	1,285	569
Financial liabilities:
Dividends payable	1,601	1,333
Accounts payable and accrued expenses	5,800	5,234
Secured revolving credit facility	18,400	40,000
Term loan payable		50,000
Mortgage notes payable	486,822	379,187
Estimate of Fair Value Measurement [Member]
Financial assets:
Cash and cash equivalents	29,380	27,913
Restricted cash	143	1,400
Rent and other receivables	1,285	569
Financial liabilities:
Dividends payable	1,601	1,333
Accounts payable and accrued expenses	5,800	5,234
Secured revolving credit facility	18,400	40,000
Term loan payable		50,000
Mortgages [Member]
Financial liabilities:
Mortgage notes payable	486,822	379,187
Mortgages [Member] | Estimate of Fair Value Measurement [Member]
Financial liabilities:
Mortgage notes payable	$ 455,082	$ 345,009