Goodwill and Other Intangible Assets - Narrative (Details) $ in Millions			9 Months Ended	12 Months Ended
	Oct. 01, 2024 USD ($)	Oct. 01, 2023 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 08, 2023 USD ($)
Schedule Of Goodwill And Intangible Assets [Line Items]
Loss on disposal				$ 0.0	$ 923.2	$ 0.0
Goodwill disposed of during the year					231.9
Impairment charges				$ 12.3	30.0	37.4
Number of properties impacted by impairment of intangible asset | property				1
Indefinite-lived intangible assets acquired				$ 25.0
Intangible asset amortization expense				49.9	58.8	56.7
Gaming licenses
Schedule Of Goodwill And Intangible Assets [Line Items]
Impairment of trademarks and other intangible assets				69.3	100.6	$ 79.0
Trademarks
Schedule Of Goodwill And Intangible Assets [Line Items]
Impairment of trademarks and other intangible assets				7.5
Fair Value, Nonrecurring
Schedule Of Goodwill And Intangible Assets [Line Items]
Impairment charges	$ 12.3	$ 30.0
Fair Value, Nonrecurring | Gaming licenses
Schedule Of Goodwill And Intangible Assets [Line Items]
Impairment of trademarks and other intangible assets	69.3	$ 100.6
Fair Value, Nonrecurring | Trademarks
Schedule Of Goodwill And Intangible Assets [Line Items]
Impairment of trademarks and other intangible assets	$ 7.5
Interactive | Operating segments
Schedule Of Goodwill And Intangible Assets [Line Items]
Goodwill disposed of during the year					231.9
Impairment charges				$ 0.0	0.0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Barstool Sports, Inc
Schedule Of Goodwill And Intangible Assets [Line Items]
Loss on disposal					923.2
Impairment of trademarks and other intangible assets					$ 482.9
Pre-tax non-cash loss			$ 923.2
Other intangible assets, net							$ 482.9