Long-term Debt - Other Long-term Obligations (Details)	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) payment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Debt Instrument [Line Items]
Other long-term obligations			$ 2,431,600,000	$ 2,419,000,000.0
Convertible Notes interest expense			13,500,000
Notes Payable, Other Payables
Debt Instrument [Line Items]
Other long-term obligations			73,000,000.0	89,200,000
Notes Payable, Other Payables | Ohio relocation fees debt
Debt Instrument [Line Items]
Other long-term obligations			60,900,000	76,400,000
Amount payable upon opening of the facility		$ 7,500,000
Number of semi-annual payments | payment		18
Amount of semi-annual payments due beginning one year from commencement of operations		$ 4,800,000
Effective yield		5.00%
Convertible Notes interest expense			3,400,000	4,100,000	$ 4,800,000
Notes Payable, Other Payables | Ohio relocation fees debt | Discount rate
Debt Instrument [Line Items]
Discount rate		0.050
Notes Payable, Other Payables | Event center debt
Debt Instrument [Line Items]
Other long-term obligations			12,000,000.0	12,600,000
Principal	$ 15,300,000		75,000,000.0
Effective yield	3.00%
Convertible Notes interest expense			$ 400,000	$ 400,000	$ 400,000
Periodic payment amount	$ 1,000,000.0
Debt term	20 years