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Goodwill And Intangible Assets (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2021
item
Mar. 31, 2020
USD ($)
Finite-Lived Intangible Assets [Line Items]    
Number of trademarks | item 3  
Impairment - intangible and tangible assets | $   $ 33,964
Player's Club Lists [Member]    
Finite-Lived Intangible Assets [Line Items]    
Useful life 7 years  
Player's Club Lists [Member] | Weighted Average [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 5 years 8 months 12 days  
Mountaineer Casino [Member] | Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Useful life 10 years  
Mountaineer Casino [Member] | Trademarks [Member] | Weighted Average [Member]    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 8 years 8 months 12 days  
Casinos Poland [Member]    
Finite-Lived Intangible Assets [Line Items]    
Number of casino licenses | item 8  
Useful life 6 years  
Weighted-average period before the next renewal of casino licenses 2 years 10 months 24 days  
Reporting Units [Member]    
Finite-Lived Intangible Assets [Line Items]    
Impairment - intangible and tangible assets | $   $ 33,000