Quarterly report [Sections 13 or 15(d)]

MORTGAGES, LOANS PAYABLE AND OTHER OBLIGATIONS - Schedule of Mortgages, Loans Payable And Other Obligations (Details)

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MORTGAGES, LOANS PAYABLE AND OTHER OBLIGATIONS - Schedule of Mortgages, Loans Payable And Other Obligations (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Principal balance outstanding $ 1,400,000 $ 1,400,000
Secured Debt    
Debt Instrument [Line Items]    
Principal balance outstanding 1,243,980 1,339,574
Unamortized deferred financing costs (6,641) (7,416)
Total mortgages, loans payable and other obligations, net $ 1,237,339 1,332,158
Secured Debt | Portside 2 at East Pier    
Debt Instrument [Line Items]    
Effective rate (as a percent) 4.56%  
Principal balance outstanding $ 0 93,782
Secured Debt | BLVD 425    
Debt Instrument [Line Items]    
Effective rate (as a percent) 4.17%  
Principal balance outstanding $ 131,000 131,000
Secured Debt | BLVD 401    
Debt Instrument [Line Items]    
Effective rate (as a percent) 4.29%  
Principal balance outstanding $ 112,935 113,462
Secured Debt | The Upton    
Debt Instrument [Line Items]    
Interest rate, variable (as a percent) 1.58%  
Principal balance outstanding $ 75,000 75,000
Secured Debt | RiverHouse 9 At Port Imperial    
Debt Instrument [Line Items]    
Interest rate, variable (as a percent) 1.41%  
Principal balance outstanding $ 110,000 110,000
Secured Debt | BLVD 475    
Debt Instrument [Line Items]    
Effective rate (as a percent) 2.91%  
Principal balance outstanding $ 160,307 161,201
Secured Debt | Haus25    
Debt Instrument [Line Items]    
Effective rate (as a percent) 6.04%  
Principal balance outstanding $ 343,061 343,061
Secured Debt | RiverHouse 11 at Port Imperial    
Debt Instrument [Line Items]    
Effective rate (as a percent) 4.52%  
Principal balance outstanding $ 100,000 100,000
Secured Debt | Sable    
Debt Instrument [Line Items]    
Effective rate (as a percent) 5.59%  
Principal balance outstanding $ 181,544 181,544
Secured Debt | Port Imperial South 4/5 Garage    
Debt Instrument [Line Items]    
Effective rate (as a percent) 4.85%  
Principal balance outstanding $ 30,133 $ 30,524
Secured Debt | Upton    
Debt Instrument [Line Items]    
Derivative, cap interest rate 3.50%  
Secured Debt | Riverhouse9 At Port Imperial    
Debt Instrument [Line Items]    
Derivative, cap interest rate 3.50%