Native American Development - North Fork (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($) a Table_Games gaming_device	Sep. 30, 2015 USD ($) a Table_Games gaming_device	Dec. 31, 2014 USD ($)
Development and Management Agreements, Native American [Line Items]
Native American development costs	$ 11,264	$ 11,264	$ 9,619
North Fork Rancheria of Mono Indians (Mono) [Member]
Development and Management Agreements, Native American [Line Items]
Development fee, percent fee	4.00%
Estimated period after construction begins, facility is completed and open for business		18 months
Reimbursable advances for Native American development	$ 26,400	$ 26,400
Native American development costs	$ 11,300	$ 11,300
North Fork Rancheria of Mono Indians (Mono) [Member] | Maximum [Member]
Development and Management Agreements, Native American [Line Items]
Number of Slot Machines | gaming_device	2,000	2,000
Number of Table Games | Table_Games	40	40
Estimated period to begin construction		48 months
Successful project completion (percentage)	75.00%	75.00%
North Fork Rancheria of Mono Indians (Mono) [Member] | Minimum [Member]
Development and Management Agreements, Native American [Line Items]
Estimated period to begin construction		36 months
Successful project completion (percentage)	65.00%	65.00%
North Fork Rancheria of Mono Indians (Mono) [Member] | Land Held for Development [Member]
Development and Management Agreements, Native American [Line Items]
Area of land | a	305	305