Native American Development (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) a Table_Games gaming_device	Dec. 31, 2015 USD ($)
Development and Management Agreements, Native American [Line Items]
Area of Land | a	378
Native American Development Costs, Noncurrent	$ 14,844	$ 11,908
North Fork Rancheria of Mono Indians (Mono) [Member]
Development and Management Agreements, Native American [Line Items]
Development Agreement, Term	7 years
Reimbursable advances for Native American Development	$ 29,900
Native American Development Costs, Noncurrent	$ 14,800
Property Development Fee, Percent Fee	4.00%
Management Agreement, Term	7 years
Project management fee (percentage)	40.00%
Estimated period, after construction begins, facility is completed and open for business	18 months
North Fork Rancheria of Mono Indians (Mono) [Member] | Minimum [Member]
Development and Management Agreements, Native American [Line Items]
Estimated beginning of construction in months	36 months
Number of slot machines | gaming_device	2,000
Estimated costs for Native American development projects	$ 250,000
Successful project completion (percentage)	65.00%
North Fork Rancheria of Mono Indians (Mono) [Member] | Maximum [Member]
Development and Management Agreements, Native American [Line Items]
Estimated beginning of construction in months	48 months
Number of slot machines | gaming_device	2,500
Number of table games | Table_Games	40
Estimated costs for Native American development projects	$ 300,000
Successful project completion (percentage)	75.00%
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