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Asset Acquisitions Asset Acquisitions (Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Goodwill, net	$ 826,476	$ 685,310	$ 685,310	$ 685,310
Trademarks
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	800	0
Gaming License Rights
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	23,600	$ 17,502	39,772
Peninsula
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Goodwill, net	$ 459,273
Peninsula | Trademarks
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)			$ 300

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- Definition

[Line Items] for Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table]

+ References

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Amount after 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.

+ References

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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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.

+ 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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