Quarterly report pursuant to Section 13 or 15(d)

REVENUES (Impact of Adoption of New Revenue Standard Requirements) (Details)

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REVENUES (Impact of Adoption of New Revenue Standard Requirements) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Jan. 01, 2018
Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Accumulated deficit $ (3,100,404)   $ (3,100,404)     $ (3,065,853)
Revenues            
Golf operations 87,419   245,083      
Operating costs            
Operating expenses 70,330 $ 63,384 194,751 $ 175,920    
Golf operations            
Revenues            
Golf operations 68,928   191,632      
Balances under prior accounting            
Operating costs            
Operating expenses 62,901   176,536      
Balances under prior accounting | Golf operations            
Revenues            
Golf operations 61,499   173,417      
Effect of Change | Accounting Standards Update 2014-09            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Accumulated deficit         $ 4,800  
Operating costs            
Operating expenses 7,429   18,215      
Effect of Change | Accounting Standards Update 2014-09 | Golf operations            
Revenues            
Golf operations $ 7,429   $ 18,215