Aggregate Principal Amounts due on Mortgage and Construction Notes Payable by Unconsolidated LLC's/LPs Accounted Under Equity Method (Detail) - Equity Method Investments - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Dec. 31, 2022
Schedule Of Equity Method Investments [Line Items]
Mortgage Loan Balance	[1]	$ 21,653	$ 21,802
Grayson Properties II LP
Schedule Of Equity Method Investments [Line Items]
Mortgage Loan Balance	[1],[2]	$ 12,994	13,075
Maturity Date	[2]	2025-06
Brunswick Associates
Schedule Of Equity Method Investments [Line Items]
Mortgage Loan Balance	[1]	$ 8,659	$ 8,727
Maturity Date		2030-12

[1] All mortgage loans require monthly principal payments through maturity and include a balloon principal payment upon maturity.

[2] This construction loan required interest on the outstanding principal balance to be paid on a monthly basis through December 1, 2022. On January 1, 2023, monthly principal and interest payments on this loan commenced.