Segment Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) segment	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	4
Revenues:
Revenues	$ 1,274.9	$ 1,116.1
Adjusted EBITDAR:
Adjusted EBITDAR	447.0	252.3
Rent expense associated with triple net operating leases	(110.4)	(97.5)
Stock-based compensation	(4.2)	(6.0)
Cash-settled stock-based awards variance	(21.5)	8.9
Gain (loss) on disposal of assets	0.1	(0.6)
Contingent purchase price	(0.1)	2.2
Pre-opening and acquisition costs	(1.6)	(3.2)
Depreciation and amortization	(81.3)	(95.7)
Impairment losses	0.0	(616.1)
Insurance recoveries, net of deductible charges	0.0	0.1
Non-operating items of equity method investments	(1.6)	(0.9)
Interest expense, net	(135.7)	(129.8)
Other	20.8	(21.8)
Income (loss) before income taxes	111.5	(708.1)
Income tax benefit (expense)	(20.6)	99.5
Net income (loss)	90.9	(608.6)
Capital expenditures:
Capital expenditures	25.7	42.8
Assets:
Investment in and advances to unconsolidated affiliates	275.8		$ 266.8
Total assets	14,888.2		14,667.3
Operating Segments | Northeast
Revenues:
Revenues	570.9	520.7
Adjusted EBITDAR:
Adjusted EBITDAR	193.2	124.5
Capital expenditures:
Capital expenditures	15.4	30.3
Assets:
Investment in and advances to unconsolidated affiliates	0.1		0.1
Total assets	2,040.3		1,958.4
Operating Segments | South
Revenues:
Revenues	295.9	223.3
Adjusted EBITDAR:
Adjusted EBITDAR	133.9	52.6
Capital expenditures:
Capital expenditures	1.8	4.0
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0
Total assets	1,184.8		1,165.4
Operating Segments | West
Revenues:
Revenues	96.6	126.6
Adjusted EBITDAR:
Adjusted EBITDAR	35.2	24.6
Capital expenditures:
Capital expenditures	3.2	2.5
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0
Total assets	402.6		401.5
Operating Segments | Midwest
Revenues:
Revenues	234.7	228.1
Adjusted EBITDAR:
Adjusted EBITDAR	106.0	69.5
Capital expenditures:
Capital expenditures	1.9	3.4
Assets:
Investment in and advances to unconsolidated affiliates	85.9		85.2
Total assets	1,213.7		1,161.1
Other
Revenues:
Revenues	87.9	20.3
Adjusted EBITDAR:
Adjusted EBITDAR	(21.3)	(18.9)
Capital expenditures:
Capital expenditures	3.4	2.6
Assets:
Investment in and advances to unconsolidated affiliates	189.8		181.5
Total assets	10,046.8		$ 9,980.9
Intersegment eliminations
Revenues:
Revenues	$ (11.1)	$ (2.9)