Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating Lease Costs
Total	$ 138.4	$ 124.0	$ 404.0	$ 350.5
Finance Lease Costs
Total	8.0	5.8	19.4	17.5
General and administrative
Operating Lease Costs
Rent expense associated with triple net operating leases	116.0	109.0	342.9	310.3
General and administrative | Penn Master Lease
Operating Lease Costs
Variable lease cost	5.0	4.8	14.3	9.5
Cost of Revenue
Operating Lease Costs
Operating lease cost	4.1	3.9	11.9	11.9
Cost of Revenue | Primarily Gaming expense
Operating Lease Costs
Short-term lease cost	17.0	10.3	45.8	26.5
Variable lease cost	1.3	0.8	3.4	1.8
Interest expense, net
Finance Lease Costs
Interest on lease liabilities	4.7	3.8	12.1	11.5
Financing Obligation Costs
Interest on financing obligations	104.5	103.7	312.4	300.2
Interest expense, net | Penn Master Lease
Operating Lease Costs
Variable lease cost	4.6	5.0	13.1	10.6
Depreciation and amortization
Finance Lease Costs
Amortization of ROU assets	$ 3.3	$ 2.0	$ 7.3	$ 6.0