Description of Business	9 Months Ended
Description of Business	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	1. DESCRIPTION OF BUSINESS Basis of Presentation Churchill Downs Incorporated (the "Company", "we", "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, 2022 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, 2022. 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. Acquisition of Exacta Systems On August 22, 2023, the Company completed its previously-announced acquisition of Exacta Systems, LLC ("Exacta"). Refer to Note 3, Acquisitions for further information on the transaction. Stock Split Effective May 22, 2023, the Company's common stock was split two-for-one (the "Stock Split") with a proportionate increase in the number of its authorized shares of common stock. All share and per-share amounts have been retroactively adjusted to reflect the effects of the Stock Split. Refer to Note 8, Shareholders' Equity for further information on the Stock Split. Presque Isle Impairment During the second quarter, we evaluated economic conditions subsequent to the date of our annual impairment assessment on April 1, 2023, including competition in the market and inflationary pressures, which increased during the second quarter of 2023, and impacted the performance and outlook of Presque Isle Downs and Casino ("Presque Isle"). As a result, the Company concluded that a trigger event for impairment testing occurred related to the Presque Isle gaming rights, trademark, and the reporting unit's goodwill at the end of the second quarter. Based on the 2023 trigger event, the Company evaluated and subsequently updated the projected cash flows and discount rate to reflect the current environment. As a result, the Company recognized a non-cash impairment charge of $24.5 million in the second quarter of 2023 for the Presque Isle gaming rights and trademark. Refer to Note 5, Asset Impairments for further information on the impairment. Arlington Sale On February 15, 2023, we closed on the sale of the Arlington International Racecourse property ("Arlington") located in Arlington Heights, Illinois. We sold 326-acres to the Chicago Bears for $197.2 million. Refer to Note 4, Dispositions for further information on the transaction. Acquisition of Peninsula Pacific Entertainment On November 1, 2022, the Company completed the acquisition of substantially all of the assets of Peninsula Pacific Entertainment LLC ("P2E") with a base purchase price of $2.75 billion ("P2E Transaction") subject to working capital and other purchase price adjustments. The P2E assets acquired included Colonial Downs Racetrack ("Colonial Downs") and six Historical Racing Machine ("HRM") entertainment venues in Virginia, del Lago Resort & Casino in New York ("del Lago"), and Hard Rock Hotel & Casino in Iowa ("Hard Rock Sioux City"), as well as the development rights for the Dumfries and Emporia HRM facilities in Virginia, up to five additional HRM entertainment venues in Virginia, and the potential for ONE Casino and Resort in Virginia in collaboration with Urban One, Inc. ("Urban One"). Refer to Note 3, Acquisitions for further information on the transaction. Acquisitions of Ellis Park and Chasers Poker Room On September 26, 2022, we completed the acquisition of Ellis Park Racing and Gaming ("Ellis Park") in Henderson, Kentucky, from Enchantment Holdings, LLC, an affiliate of Laguna Development Corporation, for total consideration of $79.0 million in cash, subject to certain working capital and other purchase price adjustments (the "Ellis Park Transaction"). On September 2, 2022, the Company completed the acquisition of Chasers Poker Room ("Chasers") in Salem, New Hampshire (the "Chasers Transaction"). As part of the transaction, we made an initial payment to the sellers for rights to operate the poker room and to build an HRM venue. Additional payments will be made once all necessary permits are obtained, and the planned historical racing entertainment venue is opened. The Company plans to develop an expanded charitable gaming facility in New Hampshire to accommodate HRMs and table games. Refer to Note 3, Acquisitions for further information on the transactions. Exit of the Direct Online Sports and Casino Business On February 24, 2022 the Company announced plans to exit the direct online Sports and Casino business. The Company has exited the direct online Sports and Casino business in every state except for Arizona. The Company continues to operate retail sports betting at certain of its racetracks and HRM and gaming facilities.