Other Balance Sheet Items - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Net, Current [Abstract]
Accounts receivable, gross	$ 87.2	$ 47.7
Allowance for doubtful accounts	(5.7)	(5.4)
Total	81.5	42.3
Trade receivables
Accounts Receivable, Net, Current [Abstract]
Accounts receivable, gross	12.5	7.6
Simulcast and online wagering receivables
Accounts Receivable, Net, Current [Abstract]
Accounts receivable, gross	54.1	29.6
Other receivables
Accounts Receivable, Net, Current [Abstract]
Accounts receivable, gross	$ 20.6	$ 10.5