Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)

v3.21.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)
3 Months Ended
Oct. 16, 2020
USD ($)
Mar. 07, 2018
property
Mar. 31, 2021
USD ($)
property
Jun. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
property
Dec. 31, 2020
USD ($)
New Accounting Pronouncements or Change in Accounting Principle            
Proceeds from sale of property and equipment     $ 0   $ 91,000  
Ownership in equity investment (as percent)     22.00%      
Other-than-temporary impairment charge       $ 24,700,000    
Other investments     $ 0     $ 0
Deposit refundable period (in years)     30 years      
Weighted average life (in years)     7 years      
Entertainment Golf            
New Accounting Pronouncements or Change in Accounting Principle            
Number of properties (property) | property         3  
Number of properties (property) | property     4      
Golf Properties | Held-for-sale            
New Accounting Pronouncements or Change in Accounting Principle            
Number of properties held for sale | property   26        
Golf Properties | Disposed of by sale            
New Accounting Pronouncements or Change in Accounting Principle            
Sale price on sale of property $ 34,500,000          
Proceeds from sale of property and equipment $ 33,600,000