v3.25.4
Schedule III: Real Estate and Accumulated Depreciation - Schedule (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 836,691      
Initial cost of Land 19,206      
Initial cost of Building and Leasehold improvements 24,435      
Costs capitalized subsequent to acquisition 1,060,130      
Carrying amount of Land 32,271      
Carrying amount of Buildings and Leasehold improvements 1,069,350      
Development and Construction in progress 2,150      
Total 1,103,771 $ 1,085,197 $ 1,066,620 $ 1,084,598
Accumulated Depreciation and Amortization 473,141 443,627 $ 415,903 $ 396,268
Net basis difference of assets and liabilities between tax basis and GAAP basis 125,793      
Mortgages        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Deferred debt issuance costs, net 7,240 $ 8,525    
Rego Park I        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances 0      
Initial cost of Land 1,647      
Initial cost of Building and Leasehold improvements 8,953      
Costs capitalized subsequent to acquisition 92,735      
Carrying amount of Land 1,647      
Carrying amount of Buildings and Leasehold improvements 99,538      
Development and Construction in progress 2,150      
Total 103,335      
Accumulated Depreciation and Amortization $ 51,777      
Date of Construction 1959      
Date acquired 1992      
Rego Park I | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 3 years      
Rego Park I | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 39 years      
Rego Park II        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 175,000      
Initial cost of Land 3,127      
Initial cost of Building and Leasehold improvements 1,467      
Costs capitalized subsequent to acquisition 420,795      
Carrying amount of Land 3,127      
Carrying amount of Buildings and Leasehold improvements 422,262      
Development and Construction in progress 0      
Total 425,389      
Accumulated Depreciation and Amortization $ 159,224      
Date of Construction 2009      
Date acquired 1992      
Rego Park II | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 3 years      
Rego Park II | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 40 years      
The Alexander apartment tower        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 94,000      
Initial cost of Land 0      
Initial cost of Building and Leasehold improvements 0      
Costs capitalized subsequent to acquisition 115,501      
Carrying amount of Land 0      
Carrying amount of Buildings and Leasehold improvements 115,501      
Development and Construction in progress 0      
Total 115,501      
Accumulated Depreciation and Amortization $ 33,557      
Date of Construction 2016      
Date acquired 1992      
The Alexander apartment tower | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 3 years      
The Alexander apartment tower | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 39 years      
Flushing        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 0      
Initial cost of Land 0      
Initial cost of Building and Leasehold improvements 1,660      
Costs capitalized subsequent to acquisition (107)      
Carrying amount of Land 0      
Carrying amount of Buildings and Leasehold improvements 1,553      
Development and Construction in progress 0      
Total 1,553      
Accumulated Depreciation and Amortization $ 1,454      
Date of Construction 1975      
Date acquired 1992      
Lexington Avenue        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Encumbrances $ 567,691      
Initial cost of Land 14,432      
Initial cost of Building and Leasehold improvements 12,355      
Costs capitalized subsequent to acquisition 431,206      
Carrying amount of Land 27,497      
Carrying amount of Buildings and Leasehold improvements 430,496      
Development and Construction in progress 0      
Total 457,993      
Accumulated Depreciation and Amortization $ 227,129      
Date of Construction 2003      
Date acquired 1992      
Lexington Avenue | Minimum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 9 years      
Lexington Avenue | Maximum        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation        
Life on which Depreciation in Latest Income Statement is Computed 39 years