Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Net revenue:
Net revenue	$ 934.4	$ 890.7	$ 1,577.0	$ 1,481.6
Operating expense:
Selling, general and administrative expense	60.9	57.4	115.4	112.2
Asset impairments	2.4	0.0	2.4	0.0
Transaction expense, net	1.1	0.6	1.5	4.7
Total operating expense	606.7	560.7	1,114.7	1,025.3
Operating income	327.7	330.0	462.3	456.3
Other (expense) income:
Interest expense, net	(74.2)	(73.5)	(146.5)	(143.9)
Equity in income of unconsolidated affiliates	37.1	37.7	70.4	75.5
Miscellaneous, net	1.4	0.1	1.7	8.2
Total other (expense) income	(35.7)	(35.7)	(74.4)	(60.2)
Income from operations before provision for income taxes	292.0	294.3	387.9	396.1
Income tax provision	(74.4)	(84.1)	(93.1)	(105.5)
Net income	217.6	210.2	294.8	290.6
Net income attributable to noncontrolling interest	0.7	0.9	1.2	0.9
Net income attributable to Churchill Downs Incorporated	$ 216.9	$ 209.3	$ 293.6	$ 289.7
Net income attributable to Churchill Downs Incorporated per common share data:
Basic net income (in dollars per share)	$ 3.02	$ 2.82	$ 4.02	$ 3.90
Diluted net income (in dollars per share)	$ 2.99	$ 2.79	$ 3.98	$ 3.87
Weighted average shares outstanding:
Basic (in shares)	71,700	73,900	72,700	74,000
Diluted (in shares)	72,300	74,600	73,300	74,600
Live and Historical Racing
Net revenue:
Net revenue	$ 509.9	$ 464.7	$ 782.4	$ 709.8
Operating expense:
Operating expense	256.1	221.4	445.8	378.6
Wagering Services and Solutions
Net revenue:
Net revenue	158.4	151.7	265.3	258.3
Operating expense:
Operating expense	90.8	89.3	158.0	157.2
Gaming
Net revenue:
Net revenue	266.0	274.2	529.2	513.4
Operating expense:
Operating expense	191.3	188.4	383.4	366.9
All Other
Net revenue:
Net revenue	0.1	0.1	0.1	0.1
Operating expense:
Operating expense	$ 4.1	$ 3.6	$ 8.2	$ 5.7