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Loans Held for Investment (Composition of Loans Held for Investment) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Carrying Value $ 24,238 $ 42,106
Mortgage notes receivable [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Outstanding Balance 26,115  
Carrying Value $ 24,238  
Mortgage notes receivable [Member] | Minimum [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Rate Range 5.57%  
Mortgage notes receivable [Member] | Maximum [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Rate Range 7.24%