| **Asset Impairments**                                    | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             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| **Goodwill and Intangible Assets Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| Asset Impairments                                        | 8.  ASSET IMPAIRMENTSPresque Isle Impairment During the quarter ended December 31, 2022, 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 due to the impact and uncertainty of negative economic trends ("2022 Trigger Event"). Factors considered in this evaluation included, among other things, the amount of the fair value over carrying value from the annual impairment testing performed as of April 1, 2022, changes in carrying values, changes in discount rates, and the impact of negative economic trends on cash flows.   Based on the 2022 Trigger Event, the Company updated the discount rate to reflect the increased uncertainty of the cash flows and updated the projected cash flow stream. As a result, the Company recognized a $33.4 million non-cash impairment charge in the fourth quarter of 2022 for the Presque Isle gaming rights and trademark, which are included in the Gaming segment.We performed our annual goodwill and indefinite-lived intangible assets impairment analysis for Presque Isle as of April 1, 2023. Based on the results of this analysis, no impairments for Presque Isle were identified. Subsequent to the annual test, we continued to evaluate economic conditions, 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. 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 ("2023 Trigger Event"). Based on the 2023 Trigger Event, the Company evaluated and subsequently updated the projected cash flows and discount rate to reflect the economic environment at that time. As a result, the Company recognized a $24.5 million non-cash impairment charge in the second quarter of 2023 for the Presque Isle gaming rights and trademark.The fair value of the Presque Isle gaming rights was determined using the Greenfield Method, an income approach methodology that calculates the present value based on a projected cash flow stream. The fair value of the trademark was determined by using the relief-from-royalty method of the income approach.The fair value of the Presque Isle reporting unit's goodwill was determined under the market and income valuation approaches using inputs primarily related to discounted projected cash flows and price multiples of publicly traded comparable companies.  In accordance with ASC 350, Intangibles - Goodwill and Other, the Company performed the impairment testing of the Presque Isle gaming rights and trademark prior to testing Presque Isle goodwill. Based on the trigger events described above, the Company updated the discount rate to reflect the increased uncertainty of the cash flows and updated the project cash flow stream. As a result, the Company did not recognize any impairment for Presque Isle goodwill in 2022 or 2023 because the fair value exceeded the carrying value.The Company continues to monitor the competitive environment and the impacts on the results of Presque Isle's operations. Future economic conditions and increased competition could have a negative impact on the estimates and assumptions utilized in our asset impairment assessments. These potential impacts could increase the risk of a future impairment of assets at Presque Isle.Other ImpairmentsOn February 24, 2022, the Company announced plans to exit the direct online Sports and Casino business. During the quarter ended March 31, 2022, the Company evaluated whether this planned exit would indicate it is more likely than not that any of the Company’s intangible assets, long-lived assets, current assets, or property and equipment were impaired. Based on the evaluation, the Company concluded that a trigger event for impairment testing occurred related to certain TwinSpires assets. As a result, the Company recorded a $4.9 million non-cash impairment charge related to certain assets in the TwinSpires segment.During the quarter ended December 31, 2021, the Company recorded a $4.1 million non-cash impairment charge related to certain assets in the TwinSpires segment due to changes in expectations of future realization of certain third-party market access royalty prepayments related to our New Jersey sports betting and iGaming that resulted in projected future cash flows being less than carrying value in the fourth quarter of 2021.  During the quarter ended June 30, 2021, the Company recorded an $11.2 million non-cash impairment charge related to certain assets at Churchill Downs Racetrack included in our Live and Historical Racing segment. The impairment was due to a change in the Churchill Downs Racetrack capital plans and the Company's planned use of these assets. |

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| - Definition
The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported.
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| - References
No definition available.
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