Intangible Assets (Changes in Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	$ 107,745
Amortization	(26,693)	$ (34,353)	$ (49,565)
Balance, end of period	81,052	107,745
Indefinite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	826,504
Balance, end of period	809,002	826,504
Intangible Assets [Roll Forward]
Balance, beginning of period	934,249	1,070,660	1,119,638
Additions	0	14	4,687
Amortization	(26,693)	(34,353)	(49,565)
Balance, end of period	890,054	934,249	1,070,660
Impairment of Intangible Assets (Excluding Goodwill)	17,502	40,072	4,100
Trademarks
Finite-lived Intangible Assets [Roll Forward]
Amortization	0	0	0
Indefinite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	126,001	188,287	186,800
Additions	0	14	4,687
Impairments	0	(300)
Balance, end of period	126,001	126,001	188,287
Intangible Assets [Roll Forward]
Amortization	0	0	0
Gaming License Rights
Finite-lived Intangible Assets [Roll Forward]
Amortization	0	0	0
Indefinite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	700,503	740,275	741,175
Additions	0	0	0
Impairments	(17,502)	(39,772)	(900)
Balance, end of period	683,001	700,503	740,275
Intangible Assets [Roll Forward]
Amortization	0	0	0
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	51,958	85,267	130,941
Additions	0	0	0
Impairments	0	0	0
Amortization	(25,652)	(33,309)	(45,674)
Balance, end of period	26,306	51,958	85,267
Intangible Assets [Roll Forward]
Amortization	(25,652)	(33,309)	(45,674)
Noncompete Agreements
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	0	0	2,846
Additions	0	0	0
Impairments	0	0	0
Amortization	0	0	(2,846)
Balance, end of period	0	0	0
Intangible Assets [Roll Forward]
Amortization	0	0	(2,846)
Favorable Lease Rates
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	34,414	35,458	36,503
Additions	0	0	0
Impairments	0	0	0
Amortization	(1,041)	(1,044)	(1,045)
Balance, end of period	33,373	34,414	35,458
Intangible Assets [Roll Forward]
Amortization	(1,041)	(1,044)	(1,045)
Development Agreement
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	21,373	21,373	21,373
Additions	0	0	0
Impairments	0	0	0
Amortization	0	0	0
Balance, end of period	21,373	21,373	21,373
Intangible Assets [Roll Forward]
Amortization	0	0	0
Borgata
Intangible Assets [Roll Forward]
Balance, beginning of period	(62,000)
Balance, end of period		(62,000)
Borgata \| Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	0
Balance, end of period		0
Borgata \| Noncompete Agreements
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	0
Balance, end of period		0
Borgata \| Favorable Lease Rates
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	0
Balance, end of period		0
Borgata \| Development Agreement
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	0
Balance, end of period		0
Borgata \| Gaming License Rights
Indefinite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	0
Balance, end of period		0
Borgata \| Trademarks
Indefinite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	(62,000)
Balance, end of period		(62,000)
Midwest and South \| Gaming License Rights
Indefinite-lived Intangible Assets [Roll Forward]
Impairments	$ (17,500)	(38,300)
Peninsula \| Trademarks
Indefinite-lived Intangible Assets [Roll Forward]
Impairments		(300)	$ (3,200)
Peninsula \| Gaming License Rights
Indefinite-lived Intangible Assets [Roll Forward]
Impairments		$ (1,400)

Intangible Assets, Acquired During Period (Excluding Goodwill)

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Intangible Assets [Roll Forward]

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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-Publisher FASB
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

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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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