Segment Information (Details) $ in Millions			3 Months Ended		6 Months Ended
	Feb. 21, 2023 USD ($)	Feb. 17, 2023 USD ($)	Jun. 30, 2024 USD ($) property	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment property	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Aug. 08, 2023
Segment Reporting Information [Line Items]
Number of reportable segments | segment					5
Revenues:
Revenues			$ 1,663.0	$ 1,674.8	$ 3,269.9	$ 3,348.1
Adjusted EBITDAR:
Adjusted EBITDAR			367.0	476.8	623.2	955.0
Other Operating Benefits (Costs) And Other Income (Expense) [Abstract]
Rent expense associated with triple net operating leases			(154.9)	(146.4)	(309.7)	(292.4)
Stock-based compensation			(14.2)	(19.7)	(26.1)	(36.2)
Cash-settled stock-based awards variance			3.1	6.2	11.1	9.1
Loss on disposal of assets			(9.1)	0.0	(8.9)	0.0
Contingent purchase price			0.0	(0.2)	0.0	(0.5)
Depreciation and amortization			(109.1)	(110.6)	(217.8)	(218.1)
Insurance recoveries, net of deductible charges			2.7	13.6	2.7	13.6
Non-operating items of equity method investments			(1.0)	(0.9)	(2.1)	(5.4)
Interest expense, net			(119.4)	(115.6)	(238.5)	(228.6)
Interest income			5.8	9.9	12.9	20.3
Gain on Barstool Acquisition, net			0.0	0.0	0.0	83.4
Gain on REIT transactions, net	$ 500.8		0.0	0.0	0.0	500.8
Other			(1.2)	(0.3)	(4.6)	(5.9)
Income (loss) before income taxes			(30.3)	112.8	(157.8)	795.1
Income tax benefit (expense)			3.2	(34.7)	15.8	(202.6)
Net income (loss)			(27.1)	78.1	(142.0)	592.5
Corporate overhead costs			24.5	24.8	49.4	51.1
Equity securities, unrealized (loss) gain			(3.9)	6.3	(5.4)	3.1
Capital expenditures:
Total capital expenditures			88.2	69.6	129.6	132.8
Assets:
Investment in and advances to unconsolidated affiliates			86.5		86.5		$ 84.9
Total assets			15,538.0		15,538.0		16,064.2
Operating Segments | Northeast
Revenues:
Revenues			696.3	688.0	1,381.0	1,388.5
Adjusted EBITDAR:
Adjusted EBITDAR			204.7	217.3	407.3	430.2
Capital expenditures:
Total capital expenditures			13.3	24.7	18.9	47.5
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0		0.0
Total assets			1,831.6		1,831.6		1,827.4
Operating Segments | South
Revenues:
Revenues			298.2	308.3	596.7	623.1
Adjusted EBITDAR:
Adjusted EBITDAR			111.4	120.9	224.9	244.5
Capital expenditures:
Total capital expenditures			23.6	15.4	35.4	29.1
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0		0.0
Total assets			1,278.8		1,278.8		1,244.5
Operating Segments | West
Revenues:
Revenues			135.3	130.0	264.1	259.7
Adjusted EBITDAR:
Adjusted EBITDAR			50.6	49.6	96.5	98.7
Capital expenditures:
Total capital expenditures			11.4	6.5	12.9	10.3
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0		0.0
Total assets			399.6		399.6		388.6
Operating Segments | Midwest
Revenues:
Revenues			298.1	293.3	589.3	588.6
Adjusted EBITDAR:
Adjusted EBITDAR			129.9	127.1	246.9	252.7
Capital expenditures:
Total capital expenditures			38.2	16.9	57.4	29.6
Assets:
Investment in and advances to unconsolidated affiliates			81.7		81.7		80.8
Total assets			1,355.0		1,355.0		1,241.1
Operating Segments | Interactive
Revenues:
Revenues			232.6	257.5	440.3	491.0
Adjusted EBITDAR:
Adjusted EBITDAR			(102.8)	(12.8)	(298.8)	(18.5)
Capital expenditures:
Total capital expenditures			0.3	2.6	1.0	9.7
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0		0.0
Total assets			2,379.0		2,379.0		2,549.9
Other
Revenues:
Revenues			5.9	6.2	11.9	12.0
Adjusted EBITDAR:
Adjusted EBITDAR			(26.8)	(25.3)	(53.6)	(52.6)
Capital expenditures:
Total capital expenditures			1.4	3.5	4.0	6.6
Assets:
Investment in and advances to unconsolidated affiliates			4.8		4.8		4.1
Total assets			8,294.0		8,294.0		$ 8,812.7
Intersegment eliminations
Revenues:
Revenues			$ (3.4)	$ (8.5)	$ (13.4)	$ (14.8)
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Barstool Sports, Inc
Segment Reporting Information [Line Items]
Disposal group, percentage of ownership interest sold								100.00%
Barstool Sports, Inc
Segment Reporting Information [Line Items]
Ownership interest		64.00%
Barstool Acquisition
Segment Reporting Information [Line Items]
Ownership interest before acquisition		36.00%
Other Operating Benefits (Costs) And Other Income (Expense) [Abstract]
Business acquisition, percentage of voting interests acquired		64.00%
Gain on transaction		$ 66.5
Gain on disposal of business		$ 16.9
Jackpot, Nevada
Segment Reporting Information [Line Items]
Number of facilities the entity owned, managed, or had ownership interests in | property			2		2
Number of operating segments | segment					1