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Goodwill And Intangible Assets (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
item
Finite-Lived Intangible Assets [Line Items]  
Impairment charges related to goodwill $ 0
Number of trademarks | item 2
Impairment charges related to trademarks $ 0
License impairment charges $ 0
Casinos Poland [Member]  
Finite-Lived Intangible Assets [Line Items]  
Number of casino licenses | item 8
Term of casino licenses, years 6 years
Weighted-average period before the next renewal of casino licenses 4 years 4 months 24 days