Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) segment	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			4
Revenues:
Revenues	$ 305.5	$ 1,323.1	$ 1,421.6	$ 2,605.7
Adjusted EBITDAR:
Adjusted EBITDAR	24.5	406.5	276.8	797.9
Rent expense associated with triple net operating leases	(103.8)	(90.0)	(201.3)	(174.7)
Stock-based compensation	(2.9)	(3.3)	(8.9)	(6.7)
Cash-settled stock-based awards variance	(16.1)	3.4	(7.2)	3.0
Gain (loss) on disposal of assets	28.5	(0.4)	27.9	(0.9)
Contingent purchase price	(0.8)	(1.0)	1.4	(5.8)
Pre-opening and acquisition costs	(3.5)	(3.7)	(6.7)	(8.1)
Depreciation and amortization	(91.9)	(106.0)	(187.6)	(210.1)
Impairment losses	0.0	0.0	(616.1)	0.0
Insurance recoveries, net of deductible charges	0.0	0.0	0.1	0.0
Non-operating items of equity method investments	(1.1)	(0.9)	(2.0)	(1.9)
Interest expense, net	(135.0)	(134.7)	(264.8)	(267.0)
Other	29.3	0.0	7.5	0.0
Income (loss) before income taxes	(272.8)	69.9	(980.9)	125.7
Income tax benefit (expense)	58.4	(18.5)	157.9	(33.4)
Net income (loss)	(214.4)	51.4	(823.0)	92.3
Capital expenditures:
Capital expenditures	30.9	57.4	73.7	95.0
Assets:
Investment in and advances to unconsolidated affiliates	264.0		264.0		$ 128.3
Total assets	14,321.5	14,321.5	14,321.5	14,321.5	14,194.5
Operating segments | Northeast segment
Revenues:
Revenues	102.7	599.1	623.4	1,149.7
Adjusted EBITDAR:
Adjusted EBITDAR	(3.6)	186.2	120.9	351.0
Capital expenditures:
Capital expenditures	21.7	31.8	52.0	44.4
Assets:
Investment in and advances to unconsolidated affiliates	0.1		0.1		0.1
Total assets	1,928.5		1,928.5		2,273.7
Operating segments | South segment
Revenues:
Revenues	121.5	282.2	344.8	574.1
Adjusted EBITDAR:
Adjusted EBITDAR	44.4	92.8	97.0	190.6
Capital expenditures:
Capital expenditures	3.8	7.7	7.8	16.6
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0		0.0
Total assets	1,142.5		1,142.5		1,397.0
Operating segments | West segment
Revenues:
Revenues	17.7	164.2	144.3	322.9
Adjusted EBITDAR:
Adjusted EBITDAR	(3.0)	50.5	21.6	100.4
Capital expenditures:
Capital expenditures	1.6	7.1	4.1	14.1
Assets:
Investment in and advances to unconsolidated affiliates	0.0		0.0		0.0
Total assets	382.7		382.7		752.1
Operating segments | Midwest segment
Revenues:
Revenues	36.0	268.2	264.1	539.5
Adjusted EBITDAR:
Adjusted EBITDAR	(4.6)	97.8	64.9	197.0
Capital expenditures:
Capital expenditures	1.3	9.3	4.9	16.4
Assets:
Investment in and advances to unconsolidated affiliates	87.3		87.3		90.9
Total assets	1,171.8		1,171.8		1,412.2
Other
Revenues:
Revenues	27.6	9.4	47.9	19.5
Adjusted EBITDAR:
Adjusted EBITDAR	(8.7)	(20.8)	(27.6)	(41.1)
Capital expenditures:
Capital expenditures	2.5	1.5	4.9	3.5
Assets:
Investment in and advances to unconsolidated affiliates	176.6		176.6		37.3
Total assets	9,696.0		9,696.0		$ 8,359.5
Intersegment eliminations
Revenues:
Revenues	$ 0.0	$ 0.0	$ (2.9)	$ 0.0