Commitments and Contingencies - Additional Information (Details) $ in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2005 USD ($) a	Oct. 31, 2004 a	Dec. 31, 2016 USD ($) Employee item Agreement	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Capital lease
Future minimum lease payments - 2017			$ 300
Future minimum lease payments - 2018			300
Interest reduced to arrive at present value of minimum lease payments			100
Present value of minimum lease payments			$ 400
Bond requirements
Entity number of employees | Employee			7,400
Number of collective bargaining agreements | Agreement			11
Number of employees covered under collective bargaining agreements | Employee			900
Environmental remediation
Amount of environmental risk insurance policy purchased	$ 10,000
Eldorado Shreveport
Expenses under the terms of the ground lease
Renewal term			40 years
Lease term			10 years
Base rent			$ 1,900	$ 1,948	$ 1,921
Bond requirements
Posted surety bond amount			300
Eldorado Shreveport | Base Rent
Expenses under the terms of the ground lease
Base rent			585	585	585
Mountaineer
Bond requirements
Posted surety bond amount			$ 1,100
Scioto Downs
Expenses under the terms of the ground lease
Renewal term			2 years
Bond requirements
Posted surety bond amount			$ 1,000
Louisiana Partnership
Expenses under the terms of the ground lease
Initial renewal term			5 years
Rent escalation percentage			15.00%
Louisiana Partnership | Base Rent
Expenses under the terms of the ground lease
Base rent			$ 400
Presque Isle Downs
Bond requirements
Posted surety bond amount			1,000
Environmental remediation
Area of real property acquired (in acres) | a		229
Silver Legacy
Bond requirements
Posted surety bond amount			400
Circus Reno
Bond requirements
Posted surety bond amount			300
GEIDC
Environmental remediation
Area of real property sold (in acres) | a	205
The borrowers
Regulatory gaming assessments
Borrowings to fund initial development of gaming			99,900
The borrowers | Initial funding by Pennsylvania General Fund
Regulatory gaming assessments
Borrowings to fund initial development of gaming			$ 36,100
Number of licensees operational after which repayment of borrowing from general fund would commence | item			14
The borrowers | Additional funding by Pennsylvania Property Tax Relief Reserve Fund
Regulatory gaming assessments
Borrowings to fund initial development of gaming			$ 63,800
MTR Gaming
Regulatory gaming assessments
Estimated total obligation for assessments			3,700	4,300
Obligations paid			400	400
MTR Gaming | Initial funding by Pennsylvania General Fund
Regulatory gaming assessments
Estimated total obligation for assessments			1,900
MTR Gaming | Additional funding by Pennsylvania Property Tax Relief Reserve Fund
Regulatory gaming assessments
Estimated total proportionate share of assessment upon gaming facilities			$ 4,100
Period for quarterly payments of proportionate share of funding for assessments			10 years
Other Operating Leases
Future minimum payments under non-cancellable operating leases
Rental expense			$ 3,800	3,700	2,300
C. S. & Y. Associates
Future minimum payments under non-cancellable operating leases
Rental expense			$ 600	$ 600	$ 600