Financial Instruments and Fair Value Measurements (Details Textual)					3 Months Ended	12 Months Ended
	Apr. 22, 2016 USD ($)	Jan. 29, 2016 USD ($) payment	Jul. 31, 2015 USD ($)	Jul. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($) payment	Dec. 31, 2015 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Gain on sale of land held for sale						$ 4,525,000
Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Finite-lived Gaming Licenses [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)						15 years
Land [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Tangible Asset Impairment Charges						$ 0	$ 0
Jamul Land [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Proceeds from sale of land held for sale					$ 5,500,000
Jamul Land [Member] \| (Gain) Loss on Disposal of Property and Equipment [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Gain on sale of land held for sale					4,500,000
Initial Montana Acquisition [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration Maximum		$ 2,000,000
Business Combination, Contingent Consideration Arrangements, Number of Periodic Payment \| payment		4				4
Property and equipment		$ 2,400,000
Intangible assets		$ 14,200,000
Initial Montana Acquisition [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)		4 years
Initial Montana Acquisition [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)		15 years
Initial Montana Acquisition [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)		5 years
Initial Montana Acquisition [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment		$ 2,400,000
Intangible assets		14,200,000
Initial Montana Acquisition [Member] \| Other Accrued Expenses and Other Long-Term Obligations [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability					2,000,000	$ 2,000,000
Sartini Gaming [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment			$ 83,173,000	$ 83,173,000
Intangible assets			80,460,000	80,460,000
Sartini Gaming [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)						10 years
Sartini Gaming [Member] \| Player relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			7,300,000	7,300,000
Sartini Gaming [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 59,200,000	59,200,000
Sartini Gaming [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)						2 years
Sartini Gaming [Member] \| Computer Software, Intangible Asset [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)						10 years
Sartini Gaming [Member] \| Minimum [Member] \| Player relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			8 years
Sartini Gaming [Member] \| Minimum [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			13 years			13 years
Sartini Gaming [Member] \| Maximum [Member] \| Player relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			14 years
Sartini Gaming [Member] \| Maximum [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			16 years			16 years
Sartini Gaming [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 12,200,000	12,200,000
Sartini Gaming [Member] \| Gaming licenses [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			960,000	960,000
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			80,500,000	80,500,000
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Player relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 7,300,000	7,300,000
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Player relationships [Member] \| Distributed Gaming [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			8 years
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 59,200,000	$ 59,200,000
Fair Value Inputs, Discount Rate				11.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 300,000	$ 300,000
Fair Value Inputs, Discount Rate			9.80%
Intangible Assets, Remaining Useful Life (Years)			2 years
Fair Value Input, Probability Factor			10.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Computer Software, Intangible Asset [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 500,000	$ 500,000
Intangible Assets, Remaining Useful Life (Years)			15 years
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Minimum [Member] \| Player relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate			12.00%
Annual Attrition Rate			10.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Minimum [Member] \| Player relationships [Member] \| Casinos [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			12 years
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Minimum [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)				13 years
Annual Attrition Rate				5.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Maximum [Member] \| Player relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate			14.00%
Annual Attrition Rate			20.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Maximum [Member] \| Player relationships [Member] \| Casinos [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)			14 years
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Maximum [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)				16 years
Annual Attrition Rate				12.50%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets			$ 12,200,000	$ 12,200,000
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Trade Names [Member] \| Minimum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Royalty Rate			1.00%
Fair Value Inputs, Discount Rate			11.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Trade Names [Member] \| Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Royalty Rate			2.50%
Fair Value Inputs, Discount Rate			12.00%
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Gaming licenses [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets					900,000	$ 900,000
Sartini Gaming [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Gaming licenses [Member] \| Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets					100,000	100,000
Sartini Gaming [Member] \| Land, Land Improvements and Building and Improvements [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment			$ 37,800,000	37,800,000
Sartini Gaming [Member] \| Leasehold Improvements, Furniture, Fixtures and Equipment and Construction in Process [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment			45,400,000	45,400,000
Sartini Gaming [Member] \| Land [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment			$ 12,470,000	$ 12,470,000
Second Montana Acquisition [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment	$ 7,800,000
Intangible assets	$ 11,100,000
Second Montana Acquisition [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)	4 years
Second Montana Acquisition [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)	15 years
Second Montana Acquisition [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible Assets, Remaining Useful Life (Years)	5 years
Second Montana Acquisition [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Property and equipment	$ 7,800,000
Intangible assets	$ 11,100,000
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets					700,000	$ 700,000
Royalty Rate						1.00%
Intangible Assets, Remaining Useful Life (Years)						4 years
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets					$ 18,900,000	$ 18,900,000
Intangible Assets, Remaining Useful Life (Years)						15 years
Annual Attrition Rate						5.00%
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Intangible assets		$ 5,700,000
Intangible Assets, Remaining Useful Life (Years)		5 years
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Minimum [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate						12.00%
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Minimum [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate						12.00%
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Minimum [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		12.00%
Fair Value Input, Probability Factor		43.80%
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Maximum [Member] \| Trade Names [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate						16.00%
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Maximum [Member] \| Customer Relationships [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate						14.00%
Montana Acquisitions [Member] \| Fair Value, Inputs, Level 3 [Member] \| Non-recurring Basis [Member] \| Maximum [Member] \| Noncompete Agreements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate		16.00%
Fair Value Input, Probability Factor		50.00%