Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating Lease Costs
Total	$ 136.9	$ 111.8	$ 265.6	$ 226.5
Finance Lease Costs
Total	5.8	5.8	11.4	11.7
General and administrative
Operating Lease Costs
Rent expense associated with triple net operating leases	116.5	103.8	226.9	201.3
General and administrative | Penn Master Lease
Operating Lease Costs
Variable lease cost	6.1	1.6	9.3	4.7
Cost of Revenue
Operating Lease Costs
Operating lease cost	3.9	3.7	7.8	8.0
Cost of Revenue | Primarily Gaming expense
Operating Lease Costs
Short-term lease cost	15.5	4.1	28.8	16.2
Variable lease cost	1.0	0.2	2.1	1.0
Interest expense, net
Finance Lease Costs
Interest on lease liabilities	3.7	3.8	7.4	7.7
Financing Obligation Costs
Interest on financing obligations	105.3	99.1	207.9	196.5
Interest expense, net | Penn Master Lease
Operating Lease Costs
Variable lease cost	5.5	2.2	8.5	5.6
Depreciation and amortization
Finance Lease Costs
Amortization of ROU assets	$ 2.1	$ 2.0	$ 4.0	$ 4.0