| **Acquisitions - P2E Transaction (Details) $ in Millions** |           | 2 Months Ended | 12 Months Ended |         |
|------------------------------------------------------------|-----------|----------------|-----------------|---------|
||
| **Business Acquisition [Line Items]**                      |      |           |            |    |   |
| Goodwill                                                   |      | $ 723.8        | $ 723.8         | $ 366.8 | $ 899.9 |
| P2E Transaction                                            |      |           |            |    |   |
| **Business Acquisition [Line Items]**                      |      |           |            |    |   |
| Number of HRM entertainment venues | venue                 | 6         |           |            |    |   |
| Revenue since date of acquisition                          |      | 109.7          |            |    |   |
| Net income                                                 |      | $ 42.9         | $ 535.4         | $ 205.1 |   |
| Consideration to be paid                                   | $ 2,835.9 |           |            |    |   |
| Number of licenses | venue                                 | 5         |           |            |    |   |
| Goodwill                                                   | $ 347.8   |           |            |    |   |
| P2E Transaction | Gaming                                   |      |           |            |    |   |
| **Business Acquisition [Line Items]**                      |      |           |            |    |   |
| Goodwill                                                   | 129.1     |           |            |    |   |
| P2E Transaction | Live and Historical Racing               |      |           |            |    |   |
| **Business Acquisition [Line Items]**                      |      |           |            |    |   |
| Goodwill                                                   | $ 218.7   |           |            |    |   |

| X                                                                                                                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number Of HRM Entertainment Venues
+ References
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| X                                                                                                                                                                                                                     |
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| - Definition
Number Of Licenses
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.
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| X                                                                                                                                               |
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| X                                                                                                                                                                |
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