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Fair Value Measurements Fair Market Value of Liabilities (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Debt financing $ 257,274,000 $ 177,948,000
Mortgages payable 57,087,320 39,119,507
Carrying (Reported) Amount, Fair Value Disclosure [Member]
   
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Debt financing 257,274,000 177,948,000
Mortgages payable 57,087,320 39,119,517
Estimate of Fair Value, Fair Value Disclosure [Member]
   
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Debt financing 258,639,691 179,103,291
Mortgages payable $ 58,117,798 $ 40,203,943