Supplemental Balance Sheet Information - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 113.7	$ 103.6
Allowance for credit losses	(5.1)	(4.9)
Accounts receivable, net	108.6	98.7
Trade receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	36.3	37.3
Simulcast and online wagering receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	50.6	40.2
Other receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 26.8	$ 26.1