Segment Information - Schedule of Total Assets and Capital Expenditures by Operating Segment (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 7,375.7		$ 7,275.9
Capital expenditures:	164.8	$ 292.0
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	6,652.4		6,557.6
Capital expenditures:	161.3	284.0
Operating Segments | Live and Historical Racing
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,237.9		4,143.3
Capital expenditures:	135.2	188.3
Operating Segments | Wagering Services and Solutions
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	483.5		460.6
Capital expenditures:	11.7	7.2
Operating Segments | Gaming
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,931.0		1,953.7
Capital expenditures:	14.4	88.5
All Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	723.3		$ 718.3
Capital expenditures:	$ 3.5	$ 8.0