Segment Information - Schedule of Total Assets and Capital Expenditures by Operating Segment (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 7,454.8		$ 7,275.9
Capital expenditures:	224.6	$ 417.6
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	6,364.4		6,557.6
Capital expenditures:	219.7	407.3
Operating Segments | Live and Historical Racing
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,351.1		4,143.3
Capital expenditures:	177.4	287.7
Operating Segments | Wagering Services and Solutions
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	468.9		460.6
Capital expenditures:	18.0	14.2
Operating Segments | Gaming
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,544.4		1,953.7
Capital expenditures:	24.3	105.4
All Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,090.4		$ 718.3
Capital expenditures:	$ 4.9	$ 10.3