Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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No definition available.

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Investments in and Advances to Unconsolidated Affiliates - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Investments in and Advances to Affiliates [Line Items]
Distributions from unconsolidated affiliates	$ 45.0	$ 45.8
Rivers Des Plaines
Investments in and Advances to Affiliates [Line Items]
Equity method investment, ownership percentage	61.30%
Equity method investment, difference between carrying amount and underlying equity	$ 832.7
Equity method investment, amount	532.6		$ 541.2
Distributions from unconsolidated affiliates	$ 34.5	33.8
Miami Valley Gaming LLC
Investments in and Advances to Affiliates [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investment, amount	$ 115.2		$ 114.6
Distributions from unconsolidated affiliates	$ 10.5	$ 12.0
High Plaines \| Rivers Des Plaines
Investments in and Advances to Affiliates [Line Items]
Equity method investment, ownership percentage	36.00%
Casino Investors \| Rivers Des Plaines
Investments in and Advances to Affiliates [Line Items]
Equity method investment, ownership percentage	2.70%
Delaware North Companies Gaming & Entertainment Inc. \| Miami Valley Gaming LLC
Investments in and Advances to Affiliates [Line Items]
Equity method investment, ownership percentage	50.00%