Acquisitions and Dispositions - Narrative (Details)						2 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended
	Feb. 17, 2023 USD ($) $ / shares shares	Oct. 19, 2021 USD ($) $ / shares shares	Aug. 01, 2021 USD ($)	Jul. 01, 2021 USD ($)	May 11, 2021 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2023 USD ($)	Aug. 07, 2023 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($)	Aug. 08, 2023 $ / shares	Feb. 24, 2022 $ / shares	Feb. 23, 2022 $ / shares	Aug. 23, 2021 $ / shares	Feb. 22, 2021 $ / shares
Business Acquisition [Line Items]
Goodwill						$ 2,822,500,000			$ 2,822,500,000	$ 2,695,100,000	$ 2,689,500,000	$ 2,822,500,000
Gain on investments												29,900,000
Common stock, par value (in dollars per share) | $ / shares														$ 0.01	$ 0.01
Gain on disposition of business										(923,200,000)	0	0
Acquisition and transaction related costs										$ 25,000,000	$ 52,100,000	$ 43,100,000
Exchangeable Shares
Business Acquisition [Line Items]
Business combination, consideration transferred, equity interests issued and issuable (in shares) | shares											0
Common stock, par value (in dollars per share) | $ / shares										$ 0.01	$ 0.01
Barstool Sports, Inc | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Disposal group, percentage of ownership interest sold													100.00%
Cash consideration per share (in dollars per share) | $ / shares													$ 1
Right to receive gross proceeds, percent													50.00%
Pre-tax non-cash loss							$ 923,200,000
Minimum | Barstool Sports, Inc | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Goodwill and intangible assets write offs							714,800,000
Perryville Lease
Business Acquisition [Line Items]
Purchase option agreement, initial annual rent If purchased				$ 7,800,000
Hollywood Casino Perryville
Business Acquisition [Line Items]
Purchase price				12,700,000
Goodwill				9,200,000
Assets acquired and liabilities assumed				$ 8,300,000
Useful life				2 years
Purchase option agreement, purchase price				$ 39,400,000
Property and equipment				8,200,000
Net revenue									46,900,000
Net income (loss)									$ 2,500,000
Customer-Related Intangible Assets | Hollywood Casino Perryville
Business Acquisition [Line Items]
Other intangible assets				$ 1,000,000
HitPoint Inc. And Lucky Point Inc.
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired					100.00%
Purchase price					$ 12,700,000
Cash consideration					6,200,000
Business combination, consideration transferred, equity interests issued and issuable					3,500,000
Contingent consideration (up to)					$ 3,000,000
Business combination, contingent consideration, liability, annual installments payable, year					3 years
Goodwill					$ 8,800,000
HitPoint Inc. And Lucky Point Inc. | Computer Software, Intangible Asset
Business Acquisition [Line Items]
Assets acquired and liabilities assumed					$ 4,000,000
Useful life					5 years
Barstool Acquisition
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired	64.00%
Purchase price	$ 405,500,000
Cash consideration	315,300,000
Goodwill	231,900,000
Property and equipment	3,800,000
Net revenue								$ 99,200,000
Net income (loss)								$ (23,900,000)
Gain on investments	$ 66,500,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Business acquisition, equity interest Issued or issuable (in shares) | shares	2,442,809
Fair value of investment	$ 171,100,000
Liabilities incurred on acquisition	$ 23,800,000
Ownership interest before acquisition	36.00%
Acquire additional	100.00%												100.00%
Business combination, fair value	$ 660,000,000
Gain on disposition of business	$ 16,900,000
Goodwill tax deductible amount										$ 0
Goodwill, percent of net assets acquired										35.10%
Liabilities associated with this indemnity							$ 70,000,000			$ 70,000,000
Barstool Acquisition | Accrued Liabilities
Business Acquisition [Line Items]
Liabilities associated with this indemnity										35,000,000
Barstool Acquisition | Other Noncurrent Liabilities
Business Acquisition [Line Items]
Liabilities associated with this indemnity										$ 35,000,000
Barstool Acquisition | Minimum
Business Acquisition [Line Items]
Useful life	2 years
Barstool Acquisition | Maximum
Business Acquisition [Line Items]
Useful life	5 years
Sam Houston Race Park and Valley Race Park
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired			50.00%
Purchase price			$ 57,800,000
Cash consideration			42,000,000
Business combination, consideration transferred, equity interests issued and issuable			15,800,000
Gain on investments			$ 29,900,000
theScore
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired		100.00%
Purchase price		$ 2,100,000,000
Cash consideration		922,800,000
Net revenue						7,500,000
Net income (loss)						$ (11,900,000)
Gain on investments		$ 2,900,000
Business acquisition, share price | $ / shares		$ 17.00
Common stock, par value (in dollars per share) | $ / shares																$ 0.01	$ 0.01
Fair value of investment		$ 58,900,000
theScore | Common Stock
Business Acquisition [Line Items]
Business combination, consideration transferred, equity interests issued and issuable (in shares) | shares		0.2398
Common stock, par value (in dollars per share) | $ / shares		$ 0.01
Business acquisition, equity interest Issued or issuable (in shares) | shares		12,319,340
theScore | Exchangeable Shares
Business Acquisition [Line Items]
Business combination, consideration transferred, equity interests issued and issuable		$ 1,000,000,000
Business combination, consideration transferred, equity interests issued and issuable (in shares) | shares		0.2398
Business acquisition, equity interest Issued or issuable (in shares) | shares		697,539
Exchange ratio		1
Hitpoint, Perryville, Sam Houston And theScore
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired						50.00%			50.00%			50.00%
Net income (loss)												$ 51,000,000
Acquisition and transaction related costs												$ 77,100,000