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ORGANIZATION, BACKGROUND AND SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
ORGANIZATION, BACKGROUND AND SIGNIFICANT ACCOUNTING POLICIES      
Real estate impairments $ 0 $ 0 $ 0
In-place leases
     
Identified intangibles of real estate acquired      
Unamortized value $ 0    
Maximum
     
Fixed Asset Capitalization      
Period from cessation of major construction activity to consider a construction project as substantially completed 1 year    
Multi-family residential | Maximum
     
Leases on residential properties      
Lease term 1 year    
Joint ventures | Purchase of properties | Multi-family residential | Minimum
     
Organization, background and significant accounting policies      
Equity contribution in each transaction (as a percent) 50.00%    
Joint ventures | Purchase of properties | Multi-family residential | Maximum
     
Organization, background and significant accounting policies      
Equity contribution in each transaction (as a percent) 90.00%