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Acquisitions and Divestitures Asset Acquisition - Aliante (Details) - USD ($) $ in Thousands | Sep. 28, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Sep. 27, 2016 | Dec. 31, 2015 | Dec. 31, 2014
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Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill, net |  | $ 888,224 | $ 826,476 |  | $ 685,310 | $ 685,310
Aliante Gaming, LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net |  |  |  | $ 372,300 |  |
Business Combination, Transferred | $ 399,100 |  |  |  |  |
Aliante Casino Hotel and Spa [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land |  |  |  | 16,680 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  | 31,886 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  |  | 18,148 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  | 225,549 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  | 6,761 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  | 268,822 |  |
Goodwill, net |  | 61,700 | $ 153,600 | 130,324 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  | 275,583 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  | 6,208 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  |  |  | 553 |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  |  |  | 399,146 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings |  |  |  | 200,770 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equipment |  |  |  | 8,099 |  |
Business Acquisition, Transaction Costs |  | 1,000 |  | 2,200 |  |
As Previously Reported [Member] | Aliante Casino Hotel and Spa [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  | 31,886 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  |  |  | 20,791 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  | 226,309 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  | 6,329 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  | 272,657 |  |
Goodwill, net |  |  |  | 126,489 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  | 278,986 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  | 5,693 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  |  |  | 636 |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  |  |  | 399,146 |  |
Adjustments [Member] | Aliante Casino Hotel and Spa [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  | 0 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets |  | (2,600) |  | (2,643) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | (800) |  | (760) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  | 400 |  | 432 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  | (3,835) |  |
Goodwill, net |  | $ 3,800 |  | 3,835 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  | (3,403) |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  | 515 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities |  |  |  | (83) |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  |  |  | $ 0 |  |

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