Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE (Carrying Values and Estimated Fair Value) (Details)

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FAIR VALUE (Carrying Values and Estimated Fair Value) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Assets        
Real estate securities, available-for-sale $ 3,430 $ 59,034    
Real estate securities, available-for-sale - pledged as collateral 663,559 105,963    
Real estate related and other loans, held-for-sale, net 52,874 149,198    
Subprime mortgage loans subject to call option 353,347 380,806    
Cash and cash equivalents 134,289 45,651 $ 31,493 $ 73,727
Restricted cash 7,295 4,469    
Liabilities        
Repurchase agreements 831,741 418,458    
Credit facilities and obligations under capital leases 114,697 11,258    
Financing of subprime mortgage loans subject to call option 353,347 380,806    
Junior subordinated notes payable 51,219 $ 51,225    
Carrying Value        
Assets        
Real estate securities, available-for-sale 3,430      
Real estate securities, available-for-sale - pledged as collateral 663,559      
Real estate related and other loans, held-for-sale, net 52,874      
Residential mortgage loans, held-for-sale, net 240      
Subprime mortgage loans subject to call option 353,347      
Cash and cash equivalents 134,289      
Restricted cash 7,295      
Non-hedge derivative assets 395      
Liabilities        
Repurchase agreements 831,741      
Credit facilities and obligations under capital leases 114,697      
Financing of subprime mortgage loans subject to call option 353,347      
Junior subordinated notes payable 51,219      
Non-hedge derivative liabilities 2,463      
Estimated Fair Value        
Assets        
Real estate securities, available-for-sale 3,430      
Real estate securities, available-for-sale - pledged as collateral 663,559      
Real estate related and other loans, held-for-sale, net 58,406      
Residential mortgage loans, held-for-sale, net 274      
Subprime mortgage loans subject to call option 353,347      
Cash and cash equivalents 134,289      
Restricted cash 7,295      
Non-hedge derivative assets 395      
Liabilities        
Repurchase agreements 831,741      
Credit facilities and obligations under capital leases 114,697      
Financing of subprime mortgage loans subject to call option 353,347      
Junior subordinated notes payable 22,978      
Non-hedge derivative liabilities $ 2,463