Other Balance Sheet Items - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Account wagering deposits liability	$ 53.3	$ 58.7
Accrued salaries and related benefits	28.2	45.1
Purses payable	38.2	35.2
Accrued interest	76.6	49.4
Accrued fixed assets	69.5	88.6
Accrued gaming liabilities	27.3	29.5
Other	130.2	120.3
Total	$ 423.3	$ 426.8