Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Net revenue:
Net revenue	$ 683.0	$ 628.5	$ 2,260.0	$ 2,110.1
Operating expense:
Selling, general and administrative expense	59.3	59.8	174.7	172.0
Asset impairments, net	45.1	3.9	47.5	3.9
Transaction expense, net	1.9	(4.0)	3.4	0.7
Total operating expense	585.0	502.6	1,699.7	1,527.9
Operating income	98.0	125.9	560.3	582.2
Other (expense) income:
Interest expense, net	(75.6)	(73.1)	(222.1)	(217.0)
Equity in income of unconsolidated affiliates	35.0	33.4	105.4	108.9
Miscellaneous, net	3.8	(0.1)	5.5	8.1
Total other (expense) income	(36.8)	(39.8)	(111.2)	(100.0)
Income from operations before provision for income taxes	61.2	86.1	449.1	482.2
Income tax provision	(22.0)	(19.9)	(115.1)	(125.4)
Net income	39.2	66.2	334.0	356.8
Net income attributable to noncontrolling interests	1.1	0.8	2.3	1.7
Net income attributable to Churchill Downs Incorporated	$ 38.1	$ 65.4	$ 331.7	$ 355.1
Net income attributable to Churchill Downs Incorporated per common share data:
Basic net income (in dollars per share)	$ 0.54	$ 0.87	$ 4.59	$ 4.78
Diluted net income (in dollars per share)	$ 0.54	$ 0.86	$ 4.55	$ 4.73
Weighted average shares outstanding:
Basic (in shares)	70,300	73,900	71,900	74,000
Diluted (in shares)	71,000	74,600	72,500	74,600
Live and Historical Racing
Net revenue:
Net revenue	$ 300.0	$ 247.5	$ 1,082.4	$ 957.3
Operating expense:
Operating expense	205.6	171.3	651.4	549.9
Wagering Services and Solutions
Net revenue:
Net revenue	118.0	111.3	383.3	369.6
Operating expense:
Operating expense	77.1	72.3	235.1	229.5
Gaming
Net revenue:
Net revenue	265.0	269.7	794.2	783.1
Operating expense:
Operating expense	191.1	194.8	574.5	561.7
All Other
Net revenue:
Net revenue	0.0	0.0	0.1	0.1
Operating expense:
Operating expense	$ 4.9	$ 4.5	$ 13.1	$ 10.2