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Organization and Basis of Presentation - Proposed Acquisition of William Hill (Details) € in Millions, shares in Millions, $ in Millions						3 Months Ended		9 Months Ended
	Oct. 06, 2020 EUR (€)	Oct. 01, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 EUR (€)	Jun. 19, 2020 USD ($)	Sep. 30, 2020 USD ($) segment	Jun. 30, 2020 USD ($)	Sep. 30, 2020 USD ($) u_eriRegionorSegment	Sep. 30, 2019 USD ($)	Sep. 29, 2020 EUR (€)	Sep. 28, 2020 USD ($)	Sep. 25, 2020 USD ($)	Jul. 20, 2020 USD ($)	Jul. 02, 2019 USD ($)	Jan. 29, 2019 USD ($) shares
Organization and Basis of Presentation
Escrow deposit														$ 9.0
Issuance of common stock, net						$ 235.0	$ 772.0	$ 235.0	$ 0.0
Number of reportable segments						3		3
Sale of stock, consideration received on transaction					$ 772.0
Subsequent Event
Organization and Basis of Presentation
Sale of stock, consideration received on transaction		$ 1,900.0
CEI Revolving Credit Facility \| Line of Credit
Organization and Basis of Presentation
Credit facility												$ 900.0	$ 1,200.0
Escrow deposit			$ 598.0			$ 598.0		$ 598.0			$ 2,100.0
Restricted investments			2,100.0			$ 2,100.0		$ 2,100.0
Payments of loan costs			1,400.0
Senior Secured 540-day Bridge Loan Facility \| Line of Credit
Organization and Basis of Presentation
Credit facility \| €										€ 1,000.0
Senior Secured Revolving Credit Facility \| Line of Credit
Organization and Basis of Presentation
Credit facility \| €										116.0
Senior Secured 60-day Bridge Loan Facility \| Line of Credit
Organization and Basis of Presentation
Credit facility \| €										€ 503.0
William Hill PLC
Organization and Basis of Presentation
Cash consideration paid			$ 3,700.0	€ 2,900.0
William Hill
Organization and Basis of Presentation
Ownership interest															20.00%
Equity stake value in ordinary shares (in shares) \| shares															13
Fair value of initial investment															$ 13.4
Deutsche Bank AG, London Branch and JP Morgan Chase Bank, N.A \| William Hill \| Subsequent Event
Organization and Basis of Presentation
Purchase consideration \| €	€ 1,500.0
Deutsche Bank AG, London Branch and JP Morgan Chase Bank, N.A \| Asset Sale Bridge Facility \| Subsequent Event
Organization and Basis of Presentation
Amount outstanding \| €	1,000.0
Deutsche Bank AG, London Branch and JP Morgan Chase Bank, N.A \| Cash Confirmation Bridge Facility \| Subsequent Event
Organization and Basis of Presentation
Amount outstanding \| €	€ 503.0