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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Apr. 24, 2025
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |  |  |  |
Goodwill impairment loss |  | $ 0 | $ 825,000,000.0 | $ 0 |
Goodwill and intangible asset impairment | $ 0 | $ 0 |  | $ 0 |
Ameristar Council Bluffs Trademark |  |  |  |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |  |  |  |
Estimated remaining useful life |  |  |  |  | 2 years 6 months
Amortizing intangible assets, net carrying amount | $ 7,000,000 |  | $ 7,000,000 |  |

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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 926 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483154/926-20-50-5 + Details
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