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v3.25.3

Stock-based Compensation Plans - Additional Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) performance_condition performance_criteria | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation |  |  | $ 18.2 | $ 23.2 |
Number of performance criteria | performance_criteria |  |  | 2 |  |
PSUs |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Liability classified awards | $ 9.0 |  | $ 9.0 |  | $ 25.0
PSUs | Churchill Downs Incorporated 2016 Omnibus Stock Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting period (in years) |  |  | 3 years |  |
Number of performance conditions | performance_condition |  |  | 2 |  |
Continuing Operations |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation | $ 7.4 | $ 7.1 | $ 18.2 | $ 23.2 |

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