Quarterly report pursuant to Section 13 or 15(d)

Commercial Real Estate Assets (Details)

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Commercial Real Estate Assets (Details)
$ in Thousands
Mar. 31, 2016
USD ($)
unit
Dec. 31, 2015
USD ($)
unit
Mar. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Commercial Real Estate Assets, Gross $ 750,281 $ 667,346    
Unamortized Discounts or Premiums, Commercial Real Estate Assets (363) (237)    
Unamortized Net Deferred Origination Fees, Commercial Real Estate Assets (5,659) (6,156)    
Commercial real estate assets 744,259 660,953 $ 45,556 $ 0
Unfunded Commitments, Commercial Real Estate Assets $ 66,468 $ 52,234    
Number of Instruments, Commercial Real Estate Assets | unit 20 18    
Weighted Average Coupon Rate, Commercial Real Estate Assets 5.30% 5.40%    
Weighted Average Life, Commercial Real Estate Assets 3.2 3.1    
Second Mortgage [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Commercial Real Estate Assets, Gross $ 149,779 $ 153,913    
Unamortized Discounts or Premiums, Commercial Real Estate Assets (165) (237)    
Unamortized Net Deferred Origination Fees, Commercial Real Estate Assets (665) (830)    
Commercial real estate assets 148,949 152,846    
Unfunded Commitments, Commercial Real Estate Assets $ 1,900 $ 1,900    
Number of Instruments, Commercial Real Estate Assets | unit 6 6    
Weighted Average Coupon Rate, Commercial Real Estate Assets 8.30% 8.10%    
Weighted Average Life, Commercial Real Estate Assets 2.3 2.6    
First Mortgage [Member]        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Commercial Real Estate Assets, Gross $ 600,502 $ 513,433    
Unamortized Discounts or Premiums, Commercial Real Estate Assets (198) 0    
Unamortized Net Deferred Origination Fees, Commercial Real Estate Assets (4,994) (5,326)    
Commercial real estate assets 595,310 508,107    
Unfunded Commitments, Commercial Real Estate Assets $ 64,568 $ 50,334    
Number of Instruments, Commercial Real Estate Assets | unit 14 12    
Weighted Average Coupon Rate, Commercial Real Estate Assets 4.60% 4.50%    
Weighted Average Life, Commercial Real Estate Assets 3.5 3.3