Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net revenue:
Net revenue	$ 2,734.3	$ 2,461.7	$ 1,809.8
Operating expense:
Selling, general and administrative expense	237.7	202.3	164.2
Asset impairments	3.9	24.6	38.3
Transaction (benefit) expense	(12.1)	4.8	42.1
Total operating expense	2,025.3	1,897.7	1,488.0
Operating income	709.0	564.0	321.8
Other (expense) income:
Interest expense, net	(289.8)	(268.4)	(147.3)
Equity in income of unconsolidated affiliates	144.9	146.3	152.7
Gain on the sale of assets	0.0	114.0	274.6
Miscellaneous, net	9.1	5.9	7.0
Total other (expense) income	(135.8)	(2.2)	287.0
Income from operations before provision for income taxes	573.2	561.8	608.8
Income tax provision	(144.1)	(144.5)	(169.4)
Net income	429.1	417.3	439.4
Net income attributable to noncontrolling interest	2.3	0.0	0.0
Net income and comprehensive income attributable to Churchill Downs Incorporated	$ 426.8	$ 417.3	$ 439.4
Net income attributable to Churchill Downs Incorporate per common share data:
Basic net income (in dollars per share)	$ 5.73	$ 5.55	$ 5.79
Diluted net income (in dollars per share)	$ 5.68	$ 5.49	$ 5.71
Weighted average shares outstanding:
Basic (in shares)	74.0	75.2	75.9
Diluted (in shares)	74.6	76.1	77.0
Live and Historical
Net revenue:
Net revenue	$ 1,225.6	$ 1,047.3	$ 614.6
Operating expense:
Operating expense	735.4	662.2	400.9
Wagering Services and Solutions
Net revenue:
Net revenue	469.5	444.9	436.4
Operating expense:
Operating expense	296.5	288.2	293.6
Gaming
Net revenue:
Net revenue	1,039.1	968.6	755.9
Operating expense:
Operating expense	748.9	700.0	537.9
Other
Net revenue:
Net revenue	0.1	0.9	2.9
Operating expense:
Operating expense	$ 15.0	$ 15.6	$ 11.0