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Acquisitions and Divestitures Asset Acquisition - Lattner (Details) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Sep. 17, 2018 USD ($) | Jun. 01, 2018 USD ($) | Dec. 31, 2015 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill | $ 1,062,102 | $ 888,224 | $ 826,476 |  |  | $ 685,310
Number of Lattner Gaming Units | 1,000 |  |  |  |  |
Number of Lattner Locations | 220 |  |  |  |  |
Project development, preopening and writedowns | $ 45,698 | $ 14,454 | $ 22,107 |  |  |
Lattner Entertainment Group Illinois, LLC [Domain] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  |  | $ 10,638 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  | 1,062 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  |  | 78,846 |
Goodwill |  |  |  |  | 31,692 |
Business Combination, Assets and Liabilities Arising from Contingencies, Amount Recognized, Net |  |  |  |  | 100,000 |
Business Combination, Transferred |  |  |  |  | 110,538 |
Project development, preopening and writedowns | $ 700 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  | 9,307 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  |  |  | 1,963 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  | 58,000 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  |  | 79,908 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  | 1,062 |
As Previously Reported [Member] | Lattner Entertainment Group Illinois, LLC [Domain] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  |  | 9,889 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  | 1,062 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  |  | 21,923 |
Goodwill |  |  |  |  | 88,615 |
Business Combination, Transferred |  |  |  |  | 110,538 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  | 9,063 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  |  |  | 1,963 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  | 2,070 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  |  | 22,985 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  | 1,062 |
Adjustments [Member] | Lattner Entertainment Group Illinois, LLC [Domain] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets |  |  |  |  | 749 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  | 0 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  |  | 56,923 |
Goodwill |  |  |  |  | (56,923) |
Business Combination, Transferred |  |  |  |  | 0 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  | 244 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  |  |  | 0 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  | 55,930 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  |  | 56,923 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  | 0 |
Building and Improvements | Lattner Entertainment Group Illinois, LLC [Domain] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  | $ 66 |  |
Furniture and Fixtures [Member] | Lattner Entertainment Group Illinois, LLC [Domain] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  | $ 9,241 |  |
Host Relationships [Domain] | Lattner Entertainment Group Illinois, LLC [Domain] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  | $ 58,000 |

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