Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Lease Costs
Total	$ 128.7	$ 114.7
Finance Lease Costs
Total	5.6	5.9
General and administrative
Operating Lease Costs
Rent expense associated with triple net operating leases	110.4	97.5
General and administrative | Penn Master Lease
Operating Lease Costs
Variable lease cost	3.2	3.1
Cost of Revenue
Operating Lease Costs
Operating lease cost	3.9	4.3
Cost of Revenue | Primarily Gaming expense
Operating Lease Costs
Short-term lease cost	13.3	12.1
Variable lease cost	1.1	0.8
Interest expense, net
Finance Lease Costs
Interest on lease liabilities	3.7	3.9
Financing Obligation Costs
Interest on financing obligations	102.6	97.4
Interest expense, net | Penn Master Lease
Operating Lease Costs
Variable lease cost	3.0	3.4
Depreciation and amortization
Finance Lease Costs
Amortization of ROU assets	$ 1.9	$ 2.0