v3.26.3
JOINT VENTURES AND PARTNERSHIPS - Summary (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Aug. 31, 2026
USD ($)
home
Jul. 31, 2026
USD ($)
home
Jun. 30, 2026
USD ($)
home
May 31, 2026
community
Apr. 30, 2026
USD ($)
home
Feb. 28, 2026
USD ($)
item
Sep. 30, 2026
USD ($)
home
property
community
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
item
home
property
community
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
JOINT VENTURES AND PARTNERSHIPS                      
Number Properties | community             162   162    
Investment in unconsolidated entities             $ 651,253   $ 651,253   $ 879,735
Income/(loss) from investments             1,613 $ 14,011 24,580 $ 23,454  
Sold unconsolidated joint ventures and partnerships - Investment                     $ 213,795
Sold unconsolidated joint ventures and partnerships - Income (loss)             $ 2,541 7,739 $ 11,465 16,777  
Number of preferred equity agreements redeemed | item                 5    
UDR/MetLife                      
JOINT VENTURES AND PARTNERSHIPS                      
Number Properties | property             8   8    
Number of apartment homes | home             2,127   2,127    
UDR's ownership interest             50.20%   50.20%   50.20%
Investment in unconsolidated entities             $ 37,250   $ 37,250   $ 189,420
Income/(loss) from investments             $ (644) 62 $ (2,535) (2,114)  
UDR/LaSalle                      
JOINT VENTURES AND PARTNERSHIPS                      
Number Properties | property             10   10    
Number of apartment homes | home             2,924   2,924    
UDR's ownership interest   51.00%         51.00%   51.00%   51.00%
Number of apartment homes contributed | home   360                  
Investment in unconsolidated entities             $ 218,164   $ 218,164   $ 242,337
Income/(loss) from investments             $ (3,881) (813) $ (10,510) (2,774)  
UDR/Carmel Partners                      
JOINT VENTURES AND PARTNERSHIPS                      
Number Properties | property             5   5    
Number of apartment homes | home             710   710    
UDR's ownership interest       50.00%     50.00%   50.00%    
Investment in unconsolidated entities             $ 140,779   $ 140,779    
Number of communities acquired | community       5              
Income/(loss) from investments             $ 636   $ 1,006    
Preferred Equity Investments                      
JOINT VENTURES AND PARTNERSHIPS                      
Number of investments which receive a variable percentage of the value created from the project upon a capital or liquidating event | item                 2    
Aggregate proceeds           $ 138,900          
Number of preferred equity agreements redeemed | item           2          
Number of investments remeasured | item                 1    
Proceeds from sale of real estate $ 29,500                    
Unconsolidated Joint Ventures                      
JOINT VENTURES AND PARTNERSHIPS                      
Number Properties | property             23   23    
Number of apartment homes | home             5,761   5,761    
Investment in unconsolidated entities             $ 396,193   $ 396,193   431,757
Income/(loss) from investments             (3,889) (751) (12,039) (4,888)  
Real estate technology and sustainability investments                      
JOINT VENTURES AND PARTNERSHIPS                      
UDR Commitment             86,000   86,000    
Investment in unconsolidated entities             94,127   94,127   74,747
Income/(loss) from investments             $ (36) 4,416 $ 16,131 5,927  
Operating Community | Preferred Equity Investments                      
JOINT VENTURES AND PARTNERSHIPS                      
Number Properties | community             6   6    
Number of apartment homes | home             2,649   2,649    
Weighted Average Rate             10.20%   10.20%    
UDR Commitment             $ 157,601   $ 157,601    
Investment in unconsolidated entities             160,933   160,933   159,436
Income/(loss) from investments             2,997 2,607 9,023 5,638  
Debt and Preferred Equity Program | Real estate technology and sustainability investments                      
JOINT VENTURES AND PARTNERSHIPS                      
Investment in unconsolidated entities             255,060   255,060   234,183
Income/(loss) from investments             2,961 $ 7,023 25,154 $ 11,565  
Location, Statement of Financial Position, Balance [Axis]: us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent | 13th and Market Properties LLC                      
JOINT VENTURES AND PARTNERSHIPS                      
Investment in unconsolidated entities             $ (7,900)   $ (7,900)   $ (6,800)
Operating community 232 apartment homes in Portland, Oregon                      
JOINT VENTURES AND PARTNERSHIPS                      
Equity investments settled upon liquidation         $ 18,900            
Number of apartment homes acquired | home         232            
Gain (loss) from consolidation and remeasurement         $ 300            
Operating community 66 apartment homes in Santa Monica, California                      
JOINT VENTURES AND PARTNERSHIPS                      
Number of apartment homes acquired | home     66                
Gain (loss) from consolidation and remeasurement     $ 3,800                
Operating community 286 apartment homes in Portland, Oregon                      
JOINT VENTURES AND PARTNERSHIPS                      
Equity investments settled upon liquidation   $ 27,500                  
Number of apartment homes acquired | home   286                  
Home Operating Community With 384 Apartments                      
JOINT VENTURES AND PARTNERSHIPS                      
Number of apartment homes | home 384