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)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
USD ($)
derivative_instrument
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Accounting Policies [Abstract]      
Refundable term for initiation fees 30 years    
Expected life of active golf membership 7 years    
Derivative [Line Items]      
Return of margin deposits under repurchase agreements and derivatives $ 0 $ 50,156  
Ownership in equity investment (as percent) 22.00%    
Other investments $ 21,514   $ 21,135
Interest rate cap      
Derivative [Line Items]      
Interest rate derivative instruments not designated as hedging instruments at fair value, net $ 500    
Interest rate cap | Non-hedge derivatives      
Derivative [Line Items]      
Number of interest rate derivatives held (in derivatives) | derivative_instrument 1    
Lower Range      
Derivative [Line Items]      
Operating lease term 10 years    
Upper Range      
Derivative [Line Items]      
Operating lease term 20 years    
Reclassification Adjustment | General and Administrative Expense      
Derivative [Line Items]      
Corporate overhead   3,900  
Reclassification Adjustment | Operating Expense      
Derivative [Line Items]      
Corporate overhead   (4,100)  
Accounting Standards Update 2015-18      
Derivative [Line Items]      
Return of margin deposits under repurchase agreements and derivatives   $ 1,100