Acquisitions & Dispositions - Exacta Systems (Details) - USD ($) $ in Millions			12 Months Ended
	Aug. 22, 2023	Sep. 26, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Deferred payments for acquisition of business included in other liabilities			$ 1.2	$ 4.9	$ 0.0
Goodwill			900.2	899.9	$ 723.8
Exacta Systems
Business Acquisition [Line Items]
Total consideration	$ 248.2
Consideration to be paid	241.3
Deferred payments for acquisition of business included in other liabilities	$ 6.9		$ 1.2
Deferred payment term	2 years
Cash acquired in the acquisition	$ 1.8
Goodwill	177.4			$ 177.4
Exacta Systems | Live and Historical Racing
Business Acquisition [Line Items]
Goodwill	96.0
Exacta Systems | Wagering Services and Solutions
Business Acquisition [Line Items]
Goodwill	$ 81.4
Ellis Park
Business Acquisition [Line Items]
Consideration to be paid		$ 79.0
Cash acquired in the acquisition		1.4
Goodwill		$ 9.2