Revenue Disaggregation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,274.9	$ 1,116.1
Gaming
Disaggregation of Revenue [Line Items]
Total revenues	1,082.0	902.9
Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	63.0	105.1
Hotel
Disaggregation of Revenue [Line Items]
Total revenues	43.8	60.6
Other
Disaggregation of Revenue [Line Items]
Total revenues	86.1	47.5
Operating Segments | Northeast
Disaggregation of Revenue [Line Items]
Total revenues	570.9	520.7
Operating Segments | Northeast | Gaming
Disaggregation of Revenue [Line Items]
Total revenues	527.0	458.7
Operating Segments | Northeast | Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	20.9	33.9
Operating Segments | Northeast | Hotel
Disaggregation of Revenue [Line Items]
Total revenues	5.8	8.8
Operating Segments | Northeast | Other
Disaggregation of Revenue [Line Items]
Total revenues	17.2	19.3
Operating Segments | South
Disaggregation of Revenue [Line Items]
Total revenues	295.9	223.3
Operating Segments | South | Gaming
Disaggregation of Revenue [Line Items]
Total revenues	245.4	168.6
Operating Segments | South | Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	23.1	29.7
Operating Segments | South | Hotel
Disaggregation of Revenue [Line Items]
Total revenues	19.6	17.8
Operating Segments | South | Other
Disaggregation of Revenue [Line Items]
Total revenues	7.8	7.2
Operating Segments | West
Disaggregation of Revenue [Line Items]
Total revenues	96.6	126.6
Operating Segments | West | Gaming
Disaggregation of Revenue [Line Items]
Total revenues	69.1	71.9
Operating Segments | West | Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	11.9	23.5
Operating Segments | West | Hotel
Disaggregation of Revenue [Line Items]
Total revenues	12.5	25.8
Operating Segments | West | Other
Disaggregation of Revenue [Line Items]
Total revenues	3.1	5.4
Operating Segments | Midwest
Disaggregation of Revenue [Line Items]
Total revenues	234.7	228.1
Operating Segments | Midwest | Gaming
Disaggregation of Revenue [Line Items]
Total revenues	216.9	196.2
Operating Segments | Midwest | Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	7.0	17.8
Operating Segments | Midwest | Hotel
Disaggregation of Revenue [Line Items]
Total revenues	5.9	8.2
Operating Segments | Midwest | Other
Disaggregation of Revenue [Line Items]
Total revenues	4.9	5.9
Other
Disaggregation of Revenue [Line Items]
Total revenues	87.9	20.3
Other | Gaming
Disaggregation of Revenue [Line Items]
Total revenues	23.6	7.6
Other | Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	0.1	0.2
Other | Hotel
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0
Other | Other
Disaggregation of Revenue [Line Items]
Total revenues	64.2	12.5
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Total revenues	(11.1)	(2.9)
Intersegment Eliminations | Gaming
Disaggregation of Revenue [Line Items]
Total revenues	0.0	(0.1)
Intersegment Eliminations | Food and beverage
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0
Intersegment Eliminations | Hotel
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0
Intersegment Eliminations | Other
Disaggregation of Revenue [Line Items]
Total revenues	$ (11.1)	$ (2.8)