Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)

v3.8.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
derivative_instrument
Sep. 30, 2017
USD ($)
derivative_instrument
Dec. 31, 2016
USD ($)
Accounting Policies [Abstract]      
Refundable term for initiation fees   30 years  
Expected life of active golf membership   7 years  
Derivative [Line Items]      
Operating lease term 20 years    
Ownership in equity investment (as percent) 22.00% 22.00%  
Other investments $ 20,601,000 $ 20,601,000 $ 19,256,000
VIE assets 0 0 0
VIE liabilities 0 0 0
Interest rate cap      
Derivative [Line Items]      
Interest rate derivative instruments not designated as hedging instruments at fair value, net $ 200,000 $ 200,000  
Interest rate cap | Not designated as hedging instrument      
Derivative [Line Items]      
Number of interest rate derivatives held (in derivatives) | derivative_instrument 1 1  
Other Contract | Not designated as hedging instrument | Short      
Derivative [Line Items]      
Derivative, number of instruments held (in instruments) | derivative_instrument 0 0  
Other Contract | Not designated as hedging instrument | Short | TBA contracts      
Derivative [Line Items]      
Margin deposit assets $ 0 $ 0 $ 0
Lower Range      
Derivative [Line Items]      
Operating lease term   10 years  
Upper Range      
Derivative [Line Items]      
Operating lease term   20 years