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.

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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.

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

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Investments in and Advances to Unconsolidated Affiliates - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Investments in and Advances to Affiliates [Line Items]
Equity method investment, amount			$ 114.1
Distributions from unconsolidated affiliates	$ 91.7	$ 113.8
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	$ 833.1
Equity method investment, amount	561.0		$ 547.1
Distributions from unconsolidated affiliates	$ 56.7	78.8
Miami Valley Gaming LLC
Investments in and Advances to Affiliates [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investment, amount	$ 113.9
Distributions from unconsolidated affiliates	$ 35.0	$ 35.0
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%