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Investments in and Advances to Unconsolidated Affiliates - Additional Information (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Investments in and Advances to Affiliates [Line Items] |  |  |
Distributions from unconsolidated affiliates | $ 113.8 | $ 126.6 |
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 | $ 832.9 |  |
Equity method investment, amount | 537.9 |  | $ 541.2
Distributions from unconsolidated affiliates | $ 78.8 | 93.1 |
Miami Valley Gaming LLC |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |
Equity method investment, ownership percentage | 50.00% |  |
Equity method investment, amount | $ 112.3 |  | $ 114.6
Distributions from unconsolidated affiliates | $ 35.0 | $ 33.5 |
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% |  |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 + Details
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