Segment Information - Schedule of Total Assets and Capital Expenditures by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 7,347.1		$ 7,275.9
Capital expenditures:	80.1	$ 155.0
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	6,616.9		6,557.6
Capital expenditures:	79.0	149.9
Operating Segments | Live and Historical Racing
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,192.0		4,143.3
Capital expenditures:	67.6	84.8
Operating Segments | Wagering Services and Solutions
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	479.7		460.6
Capital expenditures:	6.6	3.8
Operating Segments | Gaming
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,945.2		1,953.7
Capital expenditures:	4.8	61.3
All Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	730.2		$ 718.3
Capital expenditures:	$ 1.1	$ 5.1