Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)

v3.20.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)
2 Months Ended 3 Months Ended 6 Months Ended
Mar. 07, 2018
property
Jun. 30, 2020
USD ($)
property
Jun. 30, 2020
USD ($)
property
Jun. 30, 2019
USD ($)
Securities
Jun. 30, 2020
USD ($)
property
Dec. 31, 2019
USD ($)
property
Jun. 30, 2019
USD ($)
Securities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Ownership in equity investment (as percent)   22.00% 22.00%   22.00%    
Other-than-temporary impairment charge     $ 24,700,000   $ 24,700,000    
Other investments   $ 0 $ 0   0 $ 24,020,000  
Proceeds from sale of property and equipment         $ 73,000   $ 32,665,000
Entertainment Golf              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Number of opened venues | property   3       3  
Number of venues remained closed | property   1 1   1    
Golf Properties | Disposed of by sale              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Number of real estate properties sold | Securities       4     7
Proceeds from sale of property and equipment       $ 17,900,000     $ 43,400,000
Carrying value of property disposed during the period       18,300,000     38,600,000
Gain (loss) on disposition of property       $ (400,000)     $ 4,800,000
Golf Properties | Held-for-sale              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Number of properties held for sale | property 26       1    
Real estate assets carrying value   $ 17,000,000.0 $ 17,000,000.0   $ 17,000,000.0    
Real estate assets, other related assets   200,000 200,000   200,000    
Golf Properties | Held-for-sale | Land              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Real estate assets   12,600,000 12,600,000   12,600,000    
Golf Properties | Held-for-sale | Buildings and improvements              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Real estate assets   4,000,000.0 4,000,000.0   4,000,000.0    
Golf Properties | Held-for-sale | Furniture, fixtures and equipment              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Real estate assets   $ 200,000 $ 200,000   $ 200,000    
Membership              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Deposit refundable period         30 years    
Weighted average life         7 years