XML 47 R21.htm IDEA: XBRL DOCUMENT v3.2.0.727
Organization - Additional Information (Detail)
$ / shares in Units, $ in Billions
Jun. 30, 2015
Property
May. 11, 2015
USD ($)
Property
$ / shares
Class of Stock [Line Items]    
Number of properties 31  
Number of units 9,055  
Trade Street Residential, Inc.    
Class of Stock [Line Items]    
Business Acquisition Share Price | $ / shares   $ 7.60
Number of properties   50
Number of units   14,044
Trade Street Residential, Inc. | Minimum    
Class of Stock [Line Items]    
Expected total capitalization after merger | $   $ 1.4