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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 | 1,010,660 | 1,059,638
Additions | 0 | 14 | 4,687
Amortization | (26,693) | (34,353) | (49,565)
Balance, end of period | 890,054 | 934,249 | 1,010,660
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 | 128,287 | 126,800
Additions | 0 | 14 | 4,687
Impairments | 0 | (300) |
Balance, end of period | 126,001 | 126,001 | 128,287
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 [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | (2,000) |
Borgata | Customer Relationships |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | 0 |
Borgata | Noncompete Agreements |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | 0 |
Borgata | Favorable Lease Rates |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | 0 |
Borgata | Development Agreement |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | 0 |
Borgata | Gaming License Rights |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | 0 |
Borgata | Trademarks |  |  |
Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Period Increase (Decrease) |  | (2,000) |
Midwest and South | Gaming License Rights |  |  |
Indefinite-lived Intangible Assets [Roll Forward] |  |  |
Impairments | $ (17,500) | (39,800) |
Peninsula | Trademarks |  |  |
Indefinite-lived Intangible Assets [Roll Forward] |  |  |
Impairments |  | $ (300) | $ (3,200)

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- Definition 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: 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=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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