XML 40 R21.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Significant Accounting Policies (Schedule of Estimated Useful Lives for Real Estate Assets) (Details)
6 Months Ended
Jun. 30, 2014
Building
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives of real estate assets (years) 40 years
Building Improvements | Minimum
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives of real estate assets (years) 5 years
Building Improvements | Maximum
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives of real estate assets (years) 25 years
Land Improvements
 
Property, Plant and Equipment [Line Items]  
Estimated useful lives of real estate assets (years) 15 years