Number Of Slot Machines

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- Definition

Number of Sportsbooks

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Number of Sportsbooks, Third Party Casino License

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- Definition

Number of table games

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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The number of states the entity operates in as of the balance sheet date.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Segment Information - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) slot_machine numberOfTableGames segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2021 segment	Dec. 31, 2021 game	Dec. 31, 2021 state
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	3
Number of slot machines \| slot_machine	11,000
Number of table games	200				200
Number of states in which entity operates \| state						8
Total net revenue	$ 1,597.2	$ 1,054.0	$ 1,329.7
Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	1,597.2	1,054.0	1,329.7
All Other
Segment Reporting Information [Line Items]
Total net revenue	61.0	34.6	70.1
Live and Historical Racing
Segment Reporting Information [Line Items]
Total net revenue	430.6	188.8	292.2
Live and Historical Racing \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	409.1	169.6	276.7
Live and Historical Racing \| Churchill Downs Racetrack \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	128.1	63.3	187.6
Live and Historical Racing \| Derby City Gaming \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	154.3	79.5	86.6
Live and Historical Racing \| Oak Grove \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	100.7	16.6	0.0
Live and Historical Racing \| Turfway Park \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	8.1	7.1	2.5
Live and Historical Racing \| Newport \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	17.9	3.1	0.0
TwinSpires
Segment Reporting Information [Line Items]
Number of sportsbooks \| segment				8
Number of sportsbooks, third party casino license \| segment				4
Total net revenue	433.1	416.0	296.7
TwinSpires \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	431.7	414.5	295.6
Gaming Segment
Segment Reporting Information [Line Items]
Total net revenue	698.4	437.8	689.7
Gaming Segment \| Operating Segments
Segment Reporting Information [Line Items]
Total net revenue	$ 695.4	$ 435.3	$ 687.3