Long-term Debt - Other Long-term Obligations (Details)		1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 30, 2016 USD ($)	Jan. 31, 2015 USD ($)	Sep. 30, 2014 USD ($) payment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Long-term debt				$ 2,453,388,000	$ 1,280,201,000
Interest rate				5.625%
Other long-term obligations
Debt Instrument [Line Items]
Long-term debt				$ 104,583,000	119,310,000
Other long-term obligations | Ohio relocation fees debt
Debt Instrument [Line Items]
Long-term debt				91,300,000	105,400,000
Debt principal amount			$ 75,000,000.0
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%
Interest expense				4,800,000	5,500,000	$ 6,200,000
Other long-term obligations | Ohio relocation fees debt | Discount rate
Debt Instrument [Line Items]
Discount rate			0.050
Other long-term obligations | Event center debt
Debt Instrument [Line Items]
Long-term debt				13,200,000	13,800,000
Debt principal amount		$ 15,300,000
Effective yield		3.00%
Interest expense				400,000	400,000	$ 400,000
Periodic payment amount		$ 1,000,000.0
Debt term		20 years
Capital leases
Debt Instrument [Line Items]
Long-term debt				$ 381,000	$ 891,000
Capital leases | Corporate airplane loan
Debt Instrument [Line Items]
Periodic payment amount	$ 200,000
Debt term	5 years
Interest rate	5.22%
Balloon payment	$ 12,600,000