Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Values and Estimated Fair Value) (Details)

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Values and Estimated Fair Value) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2015
Assets        
Real estate securities, available-for-sale $ 2,236      
Real estate related and other loans, held-for-sale, net 147 $ 55,612    
Cash and cash equivalents 182,371 $ 140,140 $ 134,289 $ 45,651
Carrying Value        
Assets        
Real estate securities, available-for-sale 2,236      
Real estate related and other loans, held-for-sale, net 147      
Cash and cash equivalents 182,371      
Restricted cash, current and noncurrent 6,036      
Non-hedge derivative assets 167      
Liabilities        
Credit facilities - Traditional Golf term loan 99,606      
Junior subordinated notes payable 51,210      
Estimated Fair Value        
Assets        
Real estate securities, available-for-sale 2,236      
Real estate related and other loans, held-for-sale, net 147      
Cash and cash equivalents 182,371      
Restricted cash, current and noncurrent 6,036      
Non-hedge derivative assets 167      
Liabilities        
Credit facilities - Traditional Golf term loan 103,028      
Junior subordinated notes payable $ 26,595