Intangible Assets (Summary of Amortizing and Indefinite-Lived Intangibles) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2017	Dec. 31, 2016
Intangible Assets [Line Items]
Intangible assets, gross	$ 1,204,025	$ 1,238,545
Intangible assets, cumulative amortization	(173,135)	(172,317)
Intangible assets, cumulative impairment	(184,274)	(184,274)
Intangible assets, net	846,616	881,954
Amortizing intangibles:
Gross carrying value	178,803	211,523
Cumulative amortization	(139,175)	(138,357)
Cumulative impairment losses	0	0
Intangible assets, net	39,628	73,166
Indefinite lived intangible assets:
Gross carrying value	1,025,222	1,027,022
Cumulative amortization	(33,960)	(33,960)
Cumulative impairment losses	(184,274)	(184,274)
Intangible assets, net	$ 806,988	$ 808,788
Customer Relationships [Member]
Amortizing intangibles:
Weighted average life	144 days	1 year 1 month
Gross carrying value	$ 145,700	$ 144,780
Cumulative amortization	(136,158)	(125,318)
Cumulative impairment losses	0	0
Intangible assets, net	$ 9,542	$ 19,462
Off-Market Favorable Lease [Member]
Amortizing intangibles:
Weighted average life	38 years 3 months	31 years 4 months 24 days
Gross carrying value	$ 11,730	$ 45,370
Cumulative amortization	(3,017)	(13,039)
Cumulative impairment losses	0	0
Intangible assets, net	8,713	32,331
Development Agreement
Amortizing intangibles:
Gross carrying value	21,373	21,373
Cumulative amortization	0	0
Cumulative impairment losses	0	0
Intangible assets, net	21,373	21,373
Trademarks
Indefinite lived intangible assets:
Gross carrying value	151,887	153,687
Cumulative amortization	0	0
Cumulative impairment losses	(4,300)	(4,300)
Intangible assets, net	147,587	149,387
Gaming License Rights
Indefinite lived intangible assets:
Gross carrying value	873,335	873,335
Cumulative amortization	(33,960)	(33,960)
Cumulative impairment losses	(179,974)	(179,974)
Intangible assets, net	$ 659,401	$ 659,401

Cumulative Impairment of Intangible Assets (Excluding Goodwill)

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Cumulative Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)

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Finite-Lived Intangible Assets, Cumulative Impairment Losses

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Intangible Assets, Accumulated Amortization

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Intangible Assets [Line Items]

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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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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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