Segment Information (Details) $ in Millions			3 Months Ended
	Feb. 21, 2023 USD ($)	Feb. 17, 2023 USD ($)	Mar. 31, 2024 USD ($) segment property	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Aug. 08, 2023
Segment Reporting Information [Line Items]
Number of reportable segments | segment			5
Revenues:
Revenues			$ 1,606.9	$ 1,673.3
Adjusted EBITDAR:
Adjusted EBITDAR			256.2	478.2
Rent expense associated with triple net operating leases			(154.8)	(146.0)
Stock-based compensation			(11.9)	(16.5)
Cash-settled stock-based awards variance			8.0	2.9
Gain on disposal of assets			0.2	0.0
Contingent purchase price			0.0	(0.3)
Depreciation and amortization			(108.7)	(107.5)
Non-operating items of equity method investments			(1.1)	(4.5)
Interest expense, net			(119.1)	(113.0)
Interest income			7.1	10.4
Gain on Barstool Acquisition, net			0.0	83.4
Gain on REIT transactions, net	$ 500.8		0.0	500.8
Other			(3.4)	(5.6)
Income (loss) before income taxes			(127.5)	682.3
Income tax benefit (expense)			12.6	(167.9)
Net income (loss)			(114.9)	514.4
Corporate overhead costs			24.9	26.3
Holding loss on equity securities			1.5	3.2
Capital expenditures:
Total capital expenditures			41.4	63.2
Assets:
Investment in and advances to unconsolidated affiliates			84.8		$ 84.9
Total assets			15,614.4		16,064.2
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%
Operating Segments | Northeast
Revenues:
Revenues			684.7	700.5
Adjusted EBITDAR:
Adjusted EBITDAR			202.6	212.9
Capital expenditures:
Total capital expenditures			5.6	22.8
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0
Total assets			1,859.9		1,827.4
Operating Segments | South
Revenues:
Revenues			298.5	314.8
Adjusted EBITDAR:
Adjusted EBITDAR			113.5	123.6
Capital expenditures:
Total capital expenditures			11.8	13.7
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0
Total assets			1,274.9		1,244.5
Operating Segments | West
Revenues:
Revenues			128.8	129.7
Adjusted EBITDAR:
Adjusted EBITDAR			45.9	49.1
Capital expenditures:
Total capital expenditures			1.5	3.8
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0
Total assets			388.1		388.6
Operating Segments | Midwest
Revenues:
Revenues			291.2	295.3
Adjusted EBITDAR:
Adjusted EBITDAR			117.0	125.6
Capital expenditures:
Total capital expenditures			19.2	12.7
Assets:
Investment in and advances to unconsolidated affiliates			81.5		80.8
Total assets			1,304.8		1,241.1
Operating Segments | Interactive
Revenues:
Revenues			207.7	233.5
Adjusted EBITDAR:
Adjusted EBITDAR			(196.0)	(5.7)
Capital expenditures:
Total capital expenditures			0.7	7.1
Assets:
Investment in and advances to unconsolidated affiliates			0.0		0.0
Total assets			2,503.6		2,549.9
Other
Revenues:
Revenues			6.0	5.8
Adjusted EBITDAR:
Adjusted EBITDAR			(26.8)	(27.3)
Capital expenditures:
Total capital expenditures			2.6	3.1
Assets:
Investment in and advances to unconsolidated affiliates			3.3		4.1
Total assets			8,283.1		$ 8,812.7
Intersegment eliminations
Revenues:
Revenues			$ (10.0)	$ (6.3)
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%
Adjusted EBITDAR:
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
Number of operating segments | segment			1