Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating Lease, Cost [Abstract]
Total	$ 111.8	$ 109.7	$ 226.5	$ 214.0
Lessee, Finance Lease, Cost [Abstract]
Total	5.8	5.8	11.7	11.6
Cost of revenue
Operating Lease, Cost [Abstract]
Operating lease cost	3.7	4.6	8.0	9.0
Cost of revenue | Gaming
Operating Lease, Cost [Abstract]
Short-term Lease, Cost	4.1	14.8	16.2	28.5
General and administrative
Operating Lease, Cost [Abstract]
Rent expense associated with triple net operating leases	103.8	90.0	201.3	174.7
Variable lease cost	0.2	0.3	1.0	1.8
General and administrative | Penn Master Lease
Operating Lease, Cost [Abstract]
Variable lease cost	1.6	6.2	4.7	13.0
Interest expense, net
Lessee, Finance Lease, Cost [Abstract]
Interest on lease liabilities	3.8	3.9	7.7	7.7
Financing Obligation, Costs [Abstract]
Interest on financing obligations	99.1	98.4	196.5	196.0
Interest expense, net | Penn Master Lease
Operating Lease, Cost [Abstract]
Variable lease cost	2.2	5.7	5.6	12.0
Depreciation and amortization
Lessee, Finance Lease, Cost [Abstract]
Amortization of ROU assets	$ 2.0	$ 1.9	$ 4.0	$ 3.9