Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Assets and Liabilities Fair Value Recurring Basis) (Details)

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Assets and Liabilities Fair Value Recurring Basis) (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral $ 319,184 $ 627,304
Derivative assets total 1,970 $ 856
Carrying Value    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral 319,184  
Non-hedge derivative assets 1,970  
Carrying Value | Measured on a Recurring Basis    
Derivative assets:    
Real estate securities, available-for-sale: 2,114  
Real estate securities, available-for-sale - pledged as collateral 319,184  
Derivative assets total 1,970  
Carrying Value | Measured on a Recurring Basis | Not designated as hedging instrument | Interest rate cap    
Derivative assets:    
Non-hedge derivative assets 200  
Carrying Value | Measured on a Recurring Basis | Not designated as hedging instrument | TBA contracts    
Derivative assets:    
Non-hedge derivative assets 1,770  
Carrying Value | Measured on a Recurring Basis | ABS - Non-Agency RMBS    
Derivative assets:    
Real estate securities, available-for-sale: 2,114  
Carrying Value | Measured on a Recurring Basis | FNMA/FHLMC    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral 319,184  
Estimated Fair Value    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral 319,184  
Non-hedge derivative assets 1,970  
Estimated Fair Value | Measured on a Recurring Basis    
Derivative assets:    
Real estate securities, available-for-sale: 2,114  
Real estate securities, available-for-sale - pledged as collateral 319,184  
Derivative assets total 1,970  
Estimated Fair Value | Measured on a Recurring Basis | Not designated as hedging instrument | Interest rate cap    
Derivative assets:    
Non-hedge derivative assets 200  
Estimated Fair Value | Measured on a Recurring Basis | Not designated as hedging instrument | TBA contracts    
Derivative assets:    
Non-hedge derivative assets 1,770  
Estimated Fair Value | Measured on a Recurring Basis | ABS - Non-Agency RMBS    
Derivative assets:    
Real estate securities, available-for-sale: 2,114  
Estimated Fair Value | Measured on a Recurring Basis | FNMA/FHLMC    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral 319,184  
Estimated Fair Value | Measured on a Recurring Basis | Level 2 Market Quotations (Observable)    
Derivative assets:    
Real estate securities, available-for-sale: 0  
Real estate securities, available-for-sale - pledged as collateral 319,184  
Derivative assets total 1,970  
Estimated Fair Value | Measured on a Recurring Basis | Level 2 Market Quotations (Observable) | Not designated as hedging instrument | Interest rate cap    
Derivative assets:    
Non-hedge derivative assets 200  
Estimated Fair Value | Measured on a Recurring Basis | Level 2 Market Quotations (Observable) | Not designated as hedging instrument | TBA contracts    
Derivative assets:    
Non-hedge derivative assets 1,770  
Estimated Fair Value | Measured on a Recurring Basis | Level 2 Market Quotations (Observable) | ABS - Non-Agency RMBS    
Derivative assets:    
Real estate securities, available-for-sale: 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 2 Market Quotations (Observable) | FNMA/FHLMC    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral 319,184  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Market Quotations (Unobservable)    
Derivative assets:    
Real estate securities, available-for-sale: 0  
Real estate securities, available-for-sale - pledged as collateral 0  
Derivative assets total 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Market Quotations (Unobservable) | Not designated as hedging instrument | Interest rate cap    
Derivative assets:    
Non-hedge derivative assets 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Market Quotations (Unobservable) | Not designated as hedging instrument | TBA contracts    
Derivative assets:    
Non-hedge derivative assets 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Market Quotations (Unobservable) | ABS - Non-Agency RMBS    
Derivative assets:    
Real estate securities, available-for-sale: 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Market Quotations (Unobservable) | FNMA/FHLMC    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Internal Pricing Models    
Derivative assets:    
Real estate securities, available-for-sale: 2,114  
Real estate securities, available-for-sale - pledged as collateral 0  
Derivative assets total 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Internal Pricing Models | Not designated as hedging instrument | Interest rate cap    
Derivative assets:    
Non-hedge derivative assets 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Internal Pricing Models | Not designated as hedging instrument | TBA contracts    
Derivative assets:    
Non-hedge derivative assets 0  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Internal Pricing Models | ABS - Non-Agency RMBS    
Derivative assets:    
Real estate securities, available-for-sale: 2,114  
Estimated Fair Value | Measured on a Recurring Basis | Level 3 | Internal Pricing Models | FNMA/FHLMC    
Derivative assets:    
Real estate securities, available-for-sale - pledged as collateral $ 0