Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Account wagering deposits liability	$ 40.9	$ 38.1
Accrued interest	23.8	19.2
Purses payable	14.7	18.5
Accrued salaries and related benefits	14.1	19.6
Other	77.5	72.4
Total	$ 171.0	$ 167.8