Significant Accounting Policies - Revenue Recognition and Complimentaries (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	$ 64.4	$ 88.1
Food and beverage
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	36.1	54.0
Hotel
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	26.4	30.9
Other
Revenue from External Customer [Line Items]
Total complimentaries associated with gaming contracts	$ 1.9	$ 3.2