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Selling Commissions, Dealer Manager Fees and Other Offering Costs (Tables)
3 Months Ended
Mar. 31, 2013
Selling Commissions, Dealer Manager Fees and Other Offering Costs [Abstract]  
Summary of Selling Commissions, Dealer Manager Fees and Other Offering Costs
    For the Three Months Ended March 31,  
    2013     2012  
Selling commissions and dealer manager fees   $ 293     $ 293  
Other offering costs   $ 437     $ 345