XML 86 R39.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Narrative) (Details) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2013
acre
Apr. 30, 2013
Jan. 31, 2013
Jun. 30, 2013
acre
Jun. 30, 2012
Jun. 30, 2013
acre
Jun. 30, 2012
Dec. 31, 2012
Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]                
Number of operating properties acquired   1            
Number of apartment units in wholly owned property acquired   356            
Purchase price of operating properties acquired   $ 108,500,000            
Acres of land acquired 38.8              
Payments to Acquire Land 25,800,000              
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual           2,400,000    
Business Combination, Pro Forma Information, Property Expenses Since Acquisition Date, Actual           1,000,000    
Number of operating properties sold   1 1         11
Number of apartment homes in operating properties sold   526 770         3,213
Acres of land sold 3.7     3.7   3.7    
Sales price of land parcels           6,600,000    
Gain on sale of land       $ 0 $ 0 $ 698,000 $ 0