Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Revenues
Revenues	$ 1,672.5	$ 1,606.9
Gaming taxes	(609.9)	(592.0)
Media and advertising	(99.9)	(136.0)
Reportable Segment Adjusted EBITDAR	368.0	283.0
Adjusted EBITDAR:
Other category	(38.8)	(26.8)
Rent expense associated with triple net operating lease	(155.9)	(154.8)
Stock-based compensation	(15.6)	(11.9)
Cash-settled stock-based awards variance	3.2	8.0
Gain (loss) on disposal of assets	(0.2)	0.2
Pre-opening expenses	(0.5)
Depreciation and amortization	(108.0)	(108.7)
Non-operating items of equity method investments	(1.1)	(1.1)
Interest expense, net	(110.8)	(119.1)
Interest income	3.2	7.1
Gain on financing arrangement	215.1	0.0
Other	0.6	(3.4)
Income (loss) before income taxes	159.2	(127.5)
Income tax expense	(47.7)	12.6
Net income (loss)	111.5	(114.9)
Corporate overhead costs	36.0	24.9
Proxy related costs for legal and advisory	7.7
Unrealized holding gain (loss) on equity securities	0.8	(1.5)
Capital expenditures:
Capital expenditures	125.2	41.4
Assets:
Investment in and advances to unconsolidated affiliates	89.0		$ 86.2
Total assets	15,090.0		15,261.7
Sportsbook Agreement
Adjusted EBITDAR:
Marketing expenses	37.5	50.0
Investment Agreement
Adjusted EBITDAR:
Marketing expenses	14.2	18.7
Operating Segments
Revenues
Revenues	1,672.5	1,606.9
Operating Segments | Northeast
Revenues
Revenues	680.9	684.7
Gaming taxes	(279.5)	(274.9)
Compensation and benefits	(103.5)	(104.2)
Other segment items	(103.7)	(103.0)
Reportable Segment Adjusted EBITDAR	194.2	202.6
Capital expenditures:
Capital expenditures	13.5	5.6
Assets:
Investment in and advances to unconsolidated affiliates	0.1		0.1
Total assets	1,787.2		1,808.1
Operating Segments | South
Revenues
Revenues	288.3	298.5
Gaming taxes	(63.4)	(66.1)
Compensation and benefits	(56.8)	(56.4)
Other segment items	(64.8)	(62.5)
Reportable Segment Adjusted EBITDAR	103.3	113.5
Capital expenditures:
Capital expenditures	13.7	11.8
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0
Total assets	1,304.5		1,301.7
Operating Segments | West
Revenues
Revenues	129.7	128.8
Gaming taxes	(23.7)	(24.0)
Compensation and benefits	(31.3)	(29.7)
Other segment items	(29.0)	(29.2)
Reportable Segment Adjusted EBITDAR	45.7	45.9
Capital expenditures:
Capital expenditures	40.5	1.5
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0
Total assets	495.7		453.2
Operating Segments | Midwest
Revenues
Revenues	282.9	291.2
Gaming taxes	(74.7)	(77.4)
Compensation and benefits	(44.1)	(43.0)
Other segment items	(50.3)	(53.8)
Reportable Segment Adjusted EBITDAR	113.8	117.0
Capital expenditures:
Capital expenditures	51.7	19.2
Assets:
Investment in and advances to unconsolidated affiliates	81.1		80.9
Total assets	1,547.4		1,503.7
Operating Segments | Interactive
Revenues
Revenues	290.1	207.7
Gaming taxes	(168.6)	(149.6)
Compensation and benefits	(36.7)	(52.3)
Media and advertising	(88.5)	(122.8)
Other segment items	(85.3)	(79.0)
Reportable Segment Adjusted EBITDAR	(89.0)	(196.0)
Adjusted EBITDAR:
Tax gross up	128.2	116.6
Capital expenditures:
Capital expenditures	3.6	0.7
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0
Total assets	2,335.0		2,385.6
Other
Revenues
Revenues	5.3	6.0
Capital expenditures:
Capital expenditures	2.2	2.6
Assets:
Investment in and advances to unconsolidated affiliates	7.8		5.2
Total assets	7,620.2		$ 7,809.4
Intersegment Eliminations
Revenues
Revenues	$ (4.7)	$ (10.0)