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Number of trademarks.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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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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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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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Goodwill And Intangible Assets (Narrative) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of trademarks \| item		3
Goodwill related to purchase of additional ownership in CPL		$ 34,062	$ 32,936	$ 13,993
Goodwill, acquisition		1,157	18,629
Impairment - intangible and tangible assets		35,121	16,486
Casino Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment charges related to indefinite-lived assets		$ 10,960	1,190
Casino Licenses [Member] \| Weighted Average [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period		3 years 1 month 6 days
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 10 months 24 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 10 months 24 days
Casinos Poland [Member] \| Casino Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Number of casino licenses \| item		8
Useful life		6 years
Century Casino Bath [Member] \| Casino Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment - intangible and tangible assets			$ 1,200
Reporting Units [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, acquisition	$ 1,200
Impairment - intangible and tangible assets		$ 34,100