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Asset Impairments (Details) - USD ($) $ in Millions	3 Months Ended					12 Months Ended
	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Indefinite-lived Intangible Assets [Line Items]
Non-cash impairment charge						$ 38.3	$ 15.3	$ 17.5
TwinSpires
Indefinite-lived Intangible Assets [Line Items]
Non-cash impairment charge		$ 4.9	$ 4.1
Live and Historical Racing
Indefinite-lived Intangible Assets [Line Items]
Non-cash impairment charge				$ 11.2
Presque Isle Downs & Casino
Indefinite-lived Intangible Assets [Line Items]
Asset impairments					$ 15.0
Gaming rights | Presque Isle Downs & Casino
Indefinite-lived Intangible Assets [Line Items]
Asset impairments	$ 33.4

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 230
-SubTopic 10
-Section 45
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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

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