Quarterly report [Sections 13 or 15(d)]

DISCLOSURE OF FAIR VALUE OF ASSETS AND LIABILITIES (Details)

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DISCLOSURE OF FAIR VALUE OF ASSETS AND LIABILITIES (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
property
apartmentUnit
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
property
apartmentUnit
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]          
Fair value of long-term debt $ 1,500,000,000   $ 1,500,000,000   $ 1,600,000,000
Loan balance 1,400,000,000   1,400,000,000   $ 1,700,000,000
Impairment charges $ 0 $ 2,600,000 $ 15,700,000 $ 2,600,000  
Multifamily          
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]          
Number of properties | property 4   4    
Multifamily | Multifamily Unit, Park Ridge, NJ          
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]          
Impairment charges $ 6,900,000   $ 6,900,000    
Developable Land Parcel | Discontinued Operations, Held-for-sale          
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]          
Number of properties | apartmentUnit 3   3