Significant Accounting Policies - Revenue Recognition and Complimentaries (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	$ 88.1	$ 105.4
Food and beverage
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	54.0	64.5
Hotel
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	30.9	36.6
Other
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	$ 3.2	$ 4.3