Segment Information - Net Revenue From External Customers and Intercompany Revenue From Each Operating Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net revenue	$ 2,734.3	$ 2,461.7	$ 1,809.8
External Customer
Segment Reporting Information [Line Items]
Net revenue	2,734.3	2,461.7	1,809.8
Operating Segments | Live and Historical Racing
Segment Reporting Information [Line Items]
Net revenue	1,225.6	1,047.3	614.6
Operating Segments | Wagering Services and Solutions
Segment Reporting Information [Line Items]
Net revenue	469.5	444.9	436.4
Operating Segments | Gaming
Segment Reporting Information [Line Items]
Net revenue	1,039.1	968.6	755.9
Operating Segments | External Customer
Segment Reporting Information [Line Items]
Net revenue	2,734.2	2,460.8	1,806.9
Operating Segments | External Customer | Live and Historical Racing
Segment Reporting Information [Line Items]
Net revenue	1,225.6	1,047.3	614.6
Operating Segments | External Customer | Wagering Services and Solutions
Segment Reporting Information [Line Items]
Net revenue	469.5	444.9	436.4
Operating Segments | External Customer | Gaming
Segment Reporting Information [Line Items]
Net revenue	1,039.1	968.6	755.9
All Other
Segment Reporting Information [Line Items]
Net revenue	0.1	0.9	2.9
All Other | External Customer
Segment Reporting Information [Line Items]
Net revenue	$ 0.1	$ 0.9	$ 2.9