Goodwill And Intangible Assets (Narrative) (Details) $ in Thousands	6 Months Ended
Jun. 30, 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 7 months 6 days
Casinos Poland [Member] \| License - Hilton Hotel [Member]
Finite-Lived Intangible Assets [Line Items]
License expiration date	2022-09
Casinos Poland [Member] \| License - Marriott Hotel [Member]
Finite-Lived Intangible Assets [Line Items]
License expiration date	2024-07
Casinos Poland [Member] \| LIM Center [Member]
Finite-Lived Intangible Assets [Line Items]
Opening date of casino	2019-08

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Finite Lived Intangible Assets Casino Licenses Weighted Average Period

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Number of casino licenses.

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Number of trademarks.

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Opening Date Of Casino

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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