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Description of Business - Additional Information (Details) $ in Millions |  |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
May 22, 2023 | Apr. 25, 2023 | Nov. 01, 2022 USD ($) venue | Sep. 26, 2022 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2023 USD ($) venue property state sportsbook | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Feb. 15, 2023 USD ($) a
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Number of live and historical racing entertainment venues owned and operated | venue |  |  |  |  |  |  | 14 |  |  |
Number of states in which entity operates | state |  |  |  |  |  |  | 8 |  |  |
Number of casino gaming properties | property |  |  |  |  |  |  | 9 |  |  |
Number of retail sportbooks | sportsbook |  |  |  |  |  |  | 13 |  |  |
Stock split, conversion ratio | 2 | 2 |  |  |  |  |  |  |  |
Non-cash impairment charge |  |  |  |  |  |  | $ 24.6 | $ 38.3 | $ 15.3 |
Number of additional HRM entertainment venues | venue |  |  | 5 |  |  |  |  |  |  |
Presque Isle Downs & Casino |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Non-cash impairment charge |  |  |  |  | $ 24.5 |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Arlington Heights Property |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Area of land sold | a |  |  |  |  |  |  |  |  |  | 326
Aggregate consideration |  |  |  |  |  |  |  |  |  | $ 197.2
Live and Historical Racing |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Number of states in which entity operates | state |  |  |  |  |  |  | 3 |  |  |
Non-cash impairment charge |  |  |  |  |  | $ 11.2 |  |  |  |
Ellis Park |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Payments to acquire business |  |  |  | $ 79.0 |  |  |  |  |  |
P2E Transaction |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price |  |  | $ 2,750.0 |  |  |  |  |  |  |
Number of HRM entertainment venues | venue |  |  | 6 |  |  |  |  |  |  |
Payments to acquire business |  |  | $ 2,835.9 |  |  |  |  |  |  |

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