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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