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Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Operating Loss Carryforwards [Line Items]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 35.00% 35.00% 35.00%
Valuation allowance $ 81,000 $ 0 $ 1,310,000
Change in valuation allowance of deferred tax assets 100,000    
Income Tax Expense (Benefit), Continuing Operations, Discontinued Operations, Extraordinary Items, Change (11,200,000)    
Income Tax (benefit)/expense, Conversion of certain TRS entities to REITs 0 5,770,000 $ 0
Income Tax expense from the Gain on the Sale of Real Estate 0.0 41,100,000  
Unrecognized Tax Benefits 0 $ 0  
Internal Revenue Service (IRS)      
Operating Loss Carryforwards [Line Items]      
Net loss carryforwards 27,100,000    
2020 through 2030 | State      
Operating Loss Carryforwards [Line Items]      
Net loss carryforwards 64,700,000    
Prior to conversion [Member]      
Operating Loss Carryforwards [Line Items]      
Valuation allowance 100,000    
UDR, Inc. | Internal Revenue Service (IRS)      
Operating Loss Carryforwards [Line Items]      
Net loss carryforwards $ 5,700,000    
Taxable REIT Subsidiaries      
Operating Loss Carryforwards [Line Items]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 0.00%    
Taxable REIT Subsidiaries | 2020 through 2030 | State      
Operating Loss Carryforwards [Line Items]      
Net loss carryforwards $ 4,200,000