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Business Combination Expenditures Incurred But Not Yet Paid

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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.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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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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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Acquisitions - Exacta Systems (Details) - USD ($) $ in Millions		9 Months Ended
	Aug. 22, 2023	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Deferred payments for acquisition of business included in other liabilities		$ 6.9	$ 0.0
Goodwill		899.9		$ 723.8
Additions		177.1
Operating Segments \| Live and Historical Racing
Business Acquisition [Line Items]
Goodwill		376.2		280.3
Additions		95.9
Operating Segments \| TwinSpires
Business Acquisition [Line Items]
Goodwill		233.4		$ 152.2
Additions		81.2
Exacta Systems
Business Acquisition [Line Items]
Total consideration	$ 248.2
Cash payment	241.3
Deferred payments for acquisition of business included in other liabilities	$ 6.9
Payment term	2 years
Cash acquired in the acquisition	$ 1.8
Property and equipment	9.0
Goodwill	$ 177.1	$ 177.1