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Real Estate Investments (Details)
Sep. 30, 2015
USD ($)
ft²
Dec. 31, 2014
USD ($)
ft²
Real Estate Properties [Line Items]    
Number of Properties 263 209
Gross Leasable Area | ft² 4,823,000 4,315,000
Land $ 209,688,872 $ 195,091,303
Buildings 489,571,159 393,826,467
Property under Development 4,921,625 229,242
Gross Real Estate Investments 704,181,656 589,147,012
Less Accumulated Depreciation (53,873,530) (59,089,851)
Net Real Estate Investments $ 650,308,126 $ 530,057,161