Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued salaries and wages	$ 120.4	$ 142.1
Accrued gaming, pari-mutuel, property, and other taxes	75.0	103.3
Accrued interest	13.2	13.0
Other accrued expenses	229.1	225.8
Other current liabilities	137.4	147.1
Accrued expenses and other current liabilities	575.1	631.3
Accrued progressive jackpot liability	40.8	38.3
Deferred compensation liability, current	$ 86.3	$ 80.1