Mortgages - Summary of Mortgages (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Carrying amount		$ 1,944,323	$ 2,034,076
Mortgages, net		85,853	86,602
Secured Debt
Debt Instrument [Line Items]
Carrying amount		85,993	86,754
Debt issuance costs, net		$ (140)	(152)
Wilmington Trust National Association, Due February 28 | Secured Debt
Debt Instrument [Line Items]
Origination Date	[1],[2],[3],[4]	2019-04
Maturity Date	[1],[2],[3],[4]	2028-02
Debt instrument, interest rate	[1],[2],[3],[4]	4.92%
Carrying amount	[1],[2],[3],[4]	$ 45,187	45,516
Wilmington Trust National Association, Due August 25 | Secured Debt
Debt Instrument [Line Items]
Origination Date	[1],[2],[4],[5]	2018-06
Maturity Date	[1],[2],[4],[5]	2025-08
Debt instrument, interest rate	[1],[2],[4],[5]	4.36%
Carrying amount	[1],[2],[4],[5]	$ 19,043	19,150
PNC Bank | Secured Debt
Debt Instrument [Line Items]
Origination Date	[1],[2]	2016-10
Maturity Date	[1],[2]	2026-11
Debt instrument, interest rate	[1],[2]	3.62%
Carrying amount	[1],[2]	$ 16,566	16,675
Aegon | Secured Debt
Debt Instrument [Line Items]
Origination Date	[2],[6]	2012-04
Maturity Date	[2],[6]	2023-10
Debt instrument, interest rate	[2],[6]	6.38%
Carrying amount	[2],[6]	$ 5,197	$ 5,413

[1] Debt secured by guaranty of the OP.

[2] Debt secured by related rental property and lease rents.

[3] Mortgage was assumed in April 2019 as part of the acquisition of the related property. The debt was recorded at fair value at the time of assumption.

[4] Non-recourse debt includes the indemnification/guaranty of the Corporation and/or OP pertaining to fraud, environmental claims, insolvency, and other matters.

[5] Mortgage was assumed in June 2018 as part of the acquisition of the related property. The debt was recorded at fair value at the time of assumption.

[6] Mortgage was assumed in April 2012 as part of the acquisition of the related property. The debt was recorded at fair value at the time of the assumption.