Cover
Aug. 19, 2019
Cover [Abstract]  
Document Type 8-K
Document Period End Date Apr. 21, 2020
Entity Registrant Name Churchill Downs Incorporated
Entity Incorporation, State or Country Code KY
Entity File Number 001-33998
Entity Tax Identification Number 61-0156015
Entity Address, Address Line One 600 North Hurstbourne Parkway, Suite 400
Entity Address, City or Town Louisville
Entity Address, State or Province KY
Entity Address, Postal Zip Code 40222
City Area Code 502
Local Phone Number 636-4400
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, No Par Value
Trading Symbol CHDN
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0000020212