Annual report pursuant to Section 13 and 15(d)

Mortgages Payable and Debt Maturities - Summary of Mortgage Payable (Detail)

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Mortgages Payable and Debt Maturities - Summary of Mortgage Payable (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Mortgages payable $ 37,030 $ 37,777
4.065% Mortgage Note Due April 1, 2023 [Member]    
Debt Instrument [Line Items]    
Mortgages payable 3,728 3,832
5.26% Mortgage Note Due November 1, 2023 [Member]    
Debt Instrument [Line Items]    
Mortgages payable 3,650 3,728
4.4625% Mortgage Note Due December 6, 2024 [Member]    
Debt Instrument [Line Items]    
Mortgages payable 22,427 22,684
4.44% Mortgage Note Due July 6, 2025 [Member]    
Debt Instrument [Line Items]    
Mortgages payable 6,228 6,343
5.99% Mortgage Note Due May 1, 2026 [Member]    
Debt Instrument [Line Items]    
Mortgages payable $ 997 $ 1,190