Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Payables and Accruals [Abstract]
Account wagering deposits liability	$ 54.7	$ 38.1
Accrued salaries and related benefits	21.2	19.6
Accrued interest	24.0	19.2
Purses payable	35.1	18.5
Other	79.9	72.4
Total	$ 214.9	$ 167.8