Description of Business	3 Months Ended
Description of Business	Mar. 31, 2021
Basis of Presentation [Abstract]
Description of Business	DESCRIPTION OF BUSINESS Basis of Presentation The Churchill Downs Incorporated (the "Company", "we", "us", "our") financial statements are presented in conformity with the requirements of this Quarterly Report on Form 10-Q and consequently do not include all of the disclosures normally required by U.S. generally accepted accounting principles ("GAAP") or those normally made in our Annual Report on Form 10-K. The December 31, 2020 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The following information is unaudited. All per share amounts assume dilution unless otherwise noted. This report should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020. In the opinion of management, all adjustments necessary for a fair statement of this information have been made, and all such adjustments are of a normal, recurring nature. We conduct our business through three reportable segments: Live and Historical Racing, TwinSpires, and Gaming. We aggregate our other businesses as well as certain corporate operations, and other immaterial joint ventures, in All Other. We report net revenue and operating expense associated with these reportable segments in the accompanying condensed consolidated statements of comprehensive income (loss). Segments During the first quarter of 2021, we updated our operating segments to reflect the internal management reporting used by our chief operating decision maker to evaluate results of operations and to assess performance and allocate resources. Our internal management reporting changed primarily due to the continued growth from Oak Grove Racing, Gaming & Hotel ("Oak Grove") and Turfway Park, which opened its annex historical racing machine ("HRM") facility, Newport Racing & Gaming ("Newport"), in October 2020, which resulted in our chief operating decision maker's decision to include Oak Grove, Turfway Park and Newport in the new Live and Historical Racing segment. The Live and Historical Racing segment now includes Churchill Downs Racetrack, Derby City Gaming, Oak Grove, Turfway Park, and Newport. We also realigned our retail sports betting results at our wholly-owned casinos from our Gaming segment to our TwinSpires segment. As a result of this realignment, our operating segments that meet the requirements to be disclosed separately as reportable segments are: Live and Historical Racing, TwinSpires, and Gaming. We conduct our business through these reportable segments and report net revenue and operating expense associated with these reportable segments in our condensed consolidated statements of comprehensive income (loss). The prior year results in the accompanying condensed consolidated statements of comprehensive income (loss) were reclassified to conform to this presentation. Impact of COVID-19 Pandemic In March 2020, the World Health Organization declared the COVID-19 outbreak a global pandemic. The COVID-19 global pandemic has resulted in travel limitations and business and government shutdowns which have had significant negative economic impacts in the United States and in relation to our business. Although vaccines are now available, distribution is currently limited and there can be no assurance that these vaccines will be successful in ending the COVID-19 global pandemic. The long-term impact of COVID-19 on the U.S. and world economies and continuing impact on our business remains uncertain, the duration and scope of which cannot currently be predicted. In response to the measures taken to limit the impact of COVID-19 described above, and for the protection of our employees, customers, and communities, we temporarily suspended operations at our properties in March 2020. On March 25, 2020, as a result of the temporary closures and suspended operations, the Company announced the temporary furlough of employees at its wholly-owned and managed gaming properties and certain racing operations. The Company also implemented a temporary salary reduction for all remaining non-furloughed salaried employees based on a percentage that varies dependent upon the amount of each employee’s salary. The most senior level of executive management received the largest salary decrease, based on both percentage and dollar amount. In May 2020, we began to reopen our properties with patron restrictions and gaming limitations. One property temporarily suspended operations again in July 2020 and reopened in August 2020, and three properties temporarily suspended operations again in December 2020 and reopened in January 2021. As the Company reopened these properties, certain employees have returned to work while others remain on temporary furlough due to the capacity restrictions at these properties. The Company provided health, dental, vision and life insurance benefits to furloughed employees through July 31, 2020 and during the subsequent property closure periods. As of March 31, 2021, all of our properties were reopened with certain operating restrictions.