Supplemental Balance Sheet Information - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Payables and Accruals [Abstract]
Account wagering deposits liability	$ 72.6	$ 63.1
Accrued salaries and related benefits	32.9	57.7
Purses payable	41.0	35.4
Accrued interest	75.5	48.2
Accrued fixed assets	47.1	42.7
Accrued gaming liabilities	35.3	35.3
Accrued insurance	12.7	13.1
Accrued property taxes	12.8	9.7
Current lease liabilities	8.6	8.7
Other	85.1	88.1
Total	$ 423.6	$ 402.0