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Segment Information - Schedule of Equity in Income (Losses) of Unconsolidated Investments Included in Reported Segments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Equity in income of unconsolidated investments $ 29.6 $ 25.5 $ 17.4
Casino      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Equity in income of unconsolidated investments 29.4 25.3 17.4
Other Investments      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Equity in income of unconsolidated investments $ 0.2 $ 0.2 $ 0.0