Acquisitions and Dispositions - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended			4 Months Ended	6 Months Ended
	Aug. 08, 2023	Feb. 17, 2023	Sep. 30, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2022	Aug. 31, 2023
Business Acquisition [Line Items]
Gain (loss) on pro forma adjustments					$ 1.5		$ 3.1	$ 5.6
Barstool Sports, Inc | Forecast | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Disposal group, percentage of ownership interest sold									100.00%
Subsequent Event | 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	$ 1.00								$ 1.00
Right to receive gross proceeds, percent	50.00%
Deferred tax liability	$ 115.9
Minimum | Barstool Sports, Inc | Forecast | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Goodwill and intangible assets write offs			$ 705.0
Minimum | Subsequent Event | Barstool Sports, Inc | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Pre-tax non-cash loss	800.0
Maximum | Barstool Sports, Inc | Forecast | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Goodwill and intangible assets write offs			$ 720.0
Maximum | Subsequent Event | Barstool Sports, Inc | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Pre-tax non-cash loss	$ 850.0
Barstool Acquisition
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired		64.00%
Purchase price		$ 405.5
Liabilities incurred on acquisition		$ 23.8
Ownership interest before acquisition		36.00%
Ownership interest after acquisition		100.00%
Business combination, fair value		$ 660.0
Business acquisition, equity interest Issued or issuable (in shares)		2,442,809
Payments to acquire businesses, gross		$ 315.3
Fair value of investment		171.1
Gain on transaction		66.5
Gain on disposal of business		$ 16.9
Goodwill tax deductible amount				$ 0.0		$ 0.0	$ 0.0
Goodwill, percent of net assets acquired				35.10%		35.10%	35.10%
Revenue				$ 12.8		$ 52.7
Loss recorded						$ 80.9	$ 16.1
Transaction costs				$ 1.0	$ 1.0		2.3	2.3
Gain on Barstool acquisition, net							$ 83.4	$ 83.4
Barstool Acquisition | Minimum
Business Acquisition [Line Items]
Intangible asset, useful life				2 years		2 years	2 years
Barstool Acquisition | Maximum
Business Acquisition [Line Items]
Intangible asset, useful life				5 years		5 years	5 years