Goodwill And Intangible Assets (Narrative) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2017 USD ($) item	Mar. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Impairment charges related to goodwill \| $	$ 0
Number of trademarks	2
Impairment charges related to trademarks \| $	$ 0
AGLC [Member]
Finite-Lived Intangible Assets [Line Items]
Number of casino licenses	1
HRA [Member]
Finite-Lived Intangible Assets [Line Items]
Number of casino licenses	1
Casinos Poland Ltd [Member]
Finite-Lived Intangible Assets [Line Items]
Number of casino licenses	7
Term of casino licenses, years	6 years
Weighted-average period before the next renewal of casino licenses	1 year 3 months 18 days
Century Downs Racetrack And Casino [Member]
Finite-Lived Intangible Assets [Line Items]
Number of casino licenses	2
License impairment charges \| $	$ 0	$ 0

Finite lived intangible assets, asino licenses, weighted-average period before next renewal.

No definition available.

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- Definition

Number of casino licenses.

+ References

No definition available.

+ Details

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- Definition

Number of trademarks.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275

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- Definition

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.

+ References

+ Details

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- Details

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- Details

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- Details

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